Laird MSD50NBT User manual

A
User Guide
MSD50NBT
Version 1.0

MSD50NBT
Hardware Integration Guide
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/wireless
2
© Copyright 2015 Laird. All Rights Reserved
Americas: [phone]
Europe: [phone]
Hong Kong: [phone]
REVISION HISTORY
Version
Date
Notes
Approver
1.0
22 Feb 2016
Initial Release
Andrew Chen

MSD50NBT
Hardware Integration Guide
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/wireless
3
© Copyright 2015 Laird. All Rights Reserved
Americas: [phone]
Europe: [phone]
Hong Kong: [phone]
CONTENTS
Scope ..........................................................................................................................................................................4
MSD50NBT Features Summary ..................................................................................................................................4
Specifications..............................................................................................................................................................5
WLAN Functional Description.................................................................................................................................. 11
Overview.............................................................................................................................................................. 11
Bluetooth Functional Description............................................................................................................................ 13
Electrical Characteristics.......................................................................................................................................... 14
Bluetooth Radio Characteristics .............................................................................................................................. 19
SDIO Timing Requirements...................................................................................................................................... 21
Pin Definitions ......................................................................................................................................................... 22
MSD40NBT, MSD45N, and MSD50NBT Pin Comparison Table........................................................................... 24
Mechanical Specifications ....................................................................................................................................... 27
Mounting ................................................................................................................................................................. 27
Reference Schematic of MSD50NBT ....................................................................................................................... 28
RF Layout Design Guidelines/Precautions............................................................................................................... 28
Regulatory ............................................................................................................................................................... 29
Certified Antennas............................................................................................................................................... 29
FCC and Industry Canada Regulatory ...................................................................................................................... 29
FCC....................................................................................................................................................................... 30
Industry Canada................................................................................................................................................... 31
European Union Regulatory .................................................................................................................................... 34
EU Declarations of Conformity ................................................................................................................................ 34
Ordering Information .............................................................................................................................................. 35
General Comments.............................................................................................................................................. 35
Labeling Requirements.................................................................................................................................... 36

MSD50NBT
Hardware Integration Guide
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/wireless
4
© Copyright 2015 Laird. All Rights Reserved
Americas: [phone]
Europe: [phone]
Hong Kong: [phone]
Scope
This document describes key hardware aspects of the Laird MSD50NBT
module. This document is intended to assist device manufacturers and
related parties with the integration of this radio into their host devices. Data
in this document is drawn from a number of sources and includes
information found in the Qualcomm Atheros (QCA) QCA6004 and Cambridge
Silicon Radio Ltd. (CSR) CSR8811 A08 data sheet issued in July 2011, along
with other documents provided from QCA and CSR.
This Laird 50-series module is currently in development stage and this
document is preliminary. The information in this document is subject to
change. Please contact Laird to obtain the most recent version of this
document.
MSD50NBT FEATURES SUMMARY
The Laird MSD50NBT device features are described in Table 1.
Table 1: MSD50NBT features
Feature
Description
Radio Front End
Integrates the complete transmit/receive RF paths including baluns, coexistence band pass
filter, diplexer, switches, power amplifier, low noise amplifier, and reference crystal
oscillator.
Enhanced
WLAN/BT
Coexistence
Algorithms
Enhanced important use cases including:
PCM/I2S digital audio interface
BT stereo audio (A2DP)
BT data transfer profiles (such as OPP and FTP)
BT2.1+EDR
BT-LE
Flexible radio architecture ensures simple customization for future use cases.
Power
Management
Uses power-saving techniques including:
Gating clocks to idle or inactive blocks
Fast start and settling circuits to reduce Tx power
Active duty cycles
CPU frequency scaling
Pre-Calibration
RF system tested and calibrated in production.
Internal Sleep
Clock
Integrated on-chip low power sleep clock to regulate internal timing.
Multiple Interface
Support
SDIO 2.0 (50 MHz, 4-bit and 1-bit)
HS-UART for Bluetooth HCI (compatible with any upper layer Bluetooth stack)
Advanced 802.11n
Half Guard Interval and Frame Aggregation for high throughput
Space Time Block Coding (STBC) Rx for improved downlink robustness over range
Low Density Parity Check (LDPC) for improved uplink and downlink robustness over range
Reference
Frequency
Incorporates a 26 MHz reference frequency source in package
Sleep regulated and gated to enable the internal crystal to be powered down when the device
is in sleep mode
BT shares the clock from the Wi-Fi chip.
Wi-Fi cannot be turned off or in reset statue when running BT.

MSD50NBT
Hardware Integration Guide
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/wireless
5
© Copyright 2015 Laird. All Rights Reserved
Americas: [phone]
Europe: [phone]
Hong Kong: [phone]
Feature
Description
Advanced WLAN
Includes the following advanced WLAN features:
IEEE 802.11e QoS, Wi-Fi Alliance
WMM Power Save, and 802.11n
power saving compliance
AES, AES-CCMP, TKIP engines for
faster data encryption
Cisco CCXv4 ASD, WPS support
Standard WEP/WPA/WPA2 for
personal and enterprise
environments support
WWR, 802.11d, 802.11h support
Wi-Fi Direct (Peer-to-Peer)
RTT for indoor positioning
Statistics and events for
monitoring
Self-managed power state handling
Self-contained beacon processing
Shared authentication
Ad-hoc power save
Multiple PMK ID support
Simulated UAPSD
T-Spec support
Production flow diagnostics
3-wire scheme for Wi-Fi and BT
coexistence.
Host Offloading
(WLAN)
Integrates extensive hardware signal processing and an embedded on-chip CPU to offload
complete 11n MAC/BB/PHY processing to minimize host processor loading and support
application specific customization.
Advanced
Bluetooth
High-speed UART port (up to 4 Mbps)
HFP v1.6 wide-band speech supported on-chip
On-chip encoding of SBC and aptX® codecs for A2DP music streaming
PCM/I2S digital audio interface
Support for IEEE 802.11 coexistence
The flexible RAM/ROM based architecture enables custom or future profiles to be easily added.
SPECIFICATIONS
Table 2: Specifications
Feature
Description
Physical Interface
60-pin board to board connector (Molex 54722-0607)
Wi-Fi Interface
1-bit or 4-bit Secure Digital I/O
Bluetooth Interface
Host Controller Interface (HCI) using High Speed UART
Main Chip
Wi-Fi: Qualcomm Atheros QCA6004.
BT: Cambridge Silicon Radio Ltd. (CSR) CSR8811 A08
Input Voltage Requirements
3.3 VDC (3.20V min to 3.46V max)
I/O Signalling Voltage
3.3 VDC ± 5% or 1.8 VDC ± 5%

MSD50NBT
Hardware Integration Guide
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/wireless
6
© Copyright 2015 Laird. All Rights Reserved
Americas: [phone]
Europe: [phone]
Hong Kong: [phone]
Feature
Description
Average Current
Consumption, VDDIO = 3.3
volts
(At maximum transmit power
setting)
Note: Standby refers to the
radio operating in PM1 power
saving mode.
Note: MIMO measurements
are generally higher than
Single Stream.
Single Stream
802.11a (with BT in standby)
@ 18 dBm 6 Mbps
Transmit: 600 mA
Receive: 120 mA
Standby: TBD mA
802.11b (with BT in standby)
@ 18 dBm 1 Mbps
Transmit: 460 mA
Receive: 120 mA
Standby: TBD mA
802.11g (with BT in standby)
@ 18 dBm 6 Mbps
Transmit: 450 mA
Receive: 250 mA
Standby: 130 mA
802.11n (2.4 GHz) (with BT in standby)
@ 14 dBm MCS7
Transmit: 340 mA
Receive: 120mA
Standby: TBD mA
802.11n (5 GHz) (with BT in standby)
@ 14 dBm MCS7
Transmit: 490 mA
Receive: 120 mA
Standby: TBD mA
Bluetooth (with Wi-Fi in standby)
Transmit: 85 mA
Receive: 70 mA
Standby: TBD mA
MIMO
802.11a (with BT in standby)
@ 18 dBm 6 Mbps
Transmit: 900 mA
Receive: 140 mA
Standby: TBD mA
802.11b (with BT in standby)
@ 18 dBm 1 Mbps
Transmit: 680 mA
Receive: 140 mA
Standby: TBD mA
802.11g (with BT in standby)
@ 18 dBm 6 Mbps
Transmit: 710 mA
Receive: 140 mA
Standby: TBD mA
802.11n (2.4 GHz) (with BT in
standby) @ 14 dBm MCS7
Transmit: 460 mA
Receive: 140 mA
Standby: TBD mA
802.11n (5 GHz) (with BT in
standby)
@ 14 dBm MCS7
Transmit: 720 mA
Receive: 140 mA
Standby: TBD mA
Bluetooth (with Wi-Fi in standby)
Transmit: TBD mA
Receive: TBD mA
Standby: TBD mA
Operating Temperature
-30° to 85°C (-22° to 185°F)
Operating Humidity
10 to 90% (non-condensing)
Storage Temperature
-40° to 85°C (-40° to 185°F)
Storage Humidity
10 to 90% (non-condensing)
Maximum Electrostatic
Discharge
Conductive 4KV; Air coupled 8KV EN61000-4-2
Size
32 mm (length) x 22 mm (width) x 4.7 mm (thickness)
Weight
TBD
Mounting
Please see the mounting and handling guide.
Wi-Fi Media
Direct Sequence-Spread Spectrum (DSSS)
Complementary Code Keying (CCK)
Orthogonal Frequency Divisional Multiplexing (OFDM)
Bluetooth Media
Frequency Hopping Spread Spectrum (FHSS)
Wi-Fi Media Access Protocol
Carrier sense multiple access with collision avoidance (CSMA/CA)

MSD50NBT
Hardware Integration Guide
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/wireless
7
© Copyright 2015 Laird. All Rights Reserved
Americas: [phone]
Europe: [phone]
Hong Kong: [phone]
Feature
Description
Network Architecture Types
Infrastructure and ad-hoc
Wi-Fi Standards
IEEE 802.11a, 802.11b, 802.11d, 802.11e, 802.11g, 802.11h, 802.11i, 802.11n, 802.11r
Bluetooth Standards
Bluetooth version 2.1 with Enhanced Data Rate
Bluetooth 4.0 (Bluetooth Low Energy or BLE)
Wi-Fi Data Rates Supported
11a (OFDM) 6, 9, 12, 18, 24, 36, 48, 54 Mbps
802.11b (DSSS, CCK) 1, 2, 5.5, 11 Mbps
802.11g (OFDM) 6, 9, 12, 18, 24, 36, 48, 54 Mbps
802.11n (OFDM, MCS 0-15)
Full Guard Interval: 6.5,13.0, 19.5, 26.0,39.0,52.0,58.5,65.0,
13.0,26.0,39.0, 52.0, 78.0,104.0,117.0 Mbps
Short Guard Interval: 1.2,14.4,21.7,29.9,43.3,57.8,65.0,72.2,
14.4,28.9,43.3,57.8, 86.7,115.6,130.0,144.4 Mbps
Modulation
BPSK @ 1, 6,9, 6.5, 7.2,13 and 14.4 Mbps
QPSK @ 2, 12, 18, 13, 14.4,19.5, 21.7, 26, 28.9, 39,43.3 Mbps
CCK @ 5.5 and 11 Mbps
16-QAM @ 24, 36,26, 29.9,39,43.3,52,57.8,78,86.7 Mbps
64-QAM @ 48,54,52, 57.8, 58.5, 65,72.2,104.0,115.6,117.0,130.0,144.4
Mbps
802.11n Spatial Streams
2 (2x2 MIMO)
Bluetooth Data Rates
Supported
1, 2, 3 Mbps
Bluetooth Modulation
GFSK@ 1 Mbps
Pi/4-DQPSK@ 2 Mbps
8-DPSK@ 3 Mbps
Regulatory Domain Support
FCC (Americas, Parts of Asia, and Middle East)
ETSI (Europe, Middle East, Africa, and Parts of Asia)
IC (Industry Canada )
MIC (Japan) (formerly TELEC) –Option
KC (Korea) (formerly KCC) –Option
2.4 GHz Frequency Bands
ETSI: 2.4 GHz to 2.483 GHz
FCC: 2.4 GHz to 2.473 GHz
MIC: 2.4 GHz to 2.495 GHz
KC: 2.4 GHz to 2.483 GHz
2.4 GHz Operating Channels
(Wi-Fi)
ETSI: 13 (3 non-overlapping)
FCC: 11 (3 non-overlapping)
MIC: 14 (4 non-overlapping)
KC:13 (3 non-overlapping)

MSD50NBT
Hardware Integration Guide
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/wireless
8
© Copyright 2015 Laird. All Rights Reserved
Americas: [phone]
Europe: [phone]
Hong Kong: [phone]
Feature
Description
5 GHz Frequency Bands
ETSI
5.15 GHz to 5.35 GHz (Ch 36/40/44/48/52/56/60/64)
5.47 GHz to 5.725 GHz (Ch
100/104/108/112/116/120/124/128/132/136/140/144)
FCC
5.15 GHz to 5.35 GHz (Ch 36/40/44/48/52/56/60/64)
5.47 GHz to 5.725 GHz (Ch
100/104/108/112/116/120/124/128/132/136/140/144)
5.725 GHz to 5.825 GHz(Ch 149/153/157/161/165)
MIC (Japan)
5.15 GHz to 5.35 GHz (Ch 36/40/44/48/52/56/60/64)
KC
5.15 GHz to 5.35 GHz (Ch 36/40/44/48/52/56/60/64)
5.725 GHz to 5.825 GHz (Ch 149/153/157/161/165)
5 GHz Operating Channels
(Wi-Fi)
ETSI: 19 non-overlapping
FCC: 25 non-overlapping
MIC: (Japan): 8 non-overlapping
KC: 12 non-overlapping

MSD50NBT
Hardware Integration Guide
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/wireless
9
© Copyright 2015 Laird. All Rights Reserved
Americas: [phone]
Europe: [phone]
Hong Kong: [phone]
Feature
Description
Transmit Power
Note: Transmit power on each
channels varies according to
individual country regulations.
All values for lowest data rate
is nominal, +/-2 dBm.
Others are +/-2.5dBm.
Note:
HT40 –40 Mhz-wide channels
HT20 –20 MHz-wide channels
802.11a
6 Mbps
17 dBm
54 Mbps
14 dBm
802.11b
1 Mbps
17 dBm
11 Mbps
17 dBm
802.11g
6 Mbps
17 dBm
54 Mbps
14 dBm
802.11n (2.4 GHz)
6.5 Mbps (MCS0)
17 dBm
65 Mbps (MCS7)
13 dBm
802.11n (5 GHz)
6.5 Mbps (MCS0;HT20)
17 dBm
65 Mbps (MCS7;HT20)
(MCS0;HT40)
(MCS7; HT40)
13 dBm
14 dBm
11 dBm
Bluetooth
1 Mbps
6 dBm
2 Mbps
6 dBm
3 Mbps
3 dBm
Typical Receiver Sensitivity
Note: All values nominal, +/-3
dBm.
802.11a:
6 Mbps
-92 dBm
54 Mbps
-74 dBm (PER <= 10%)
802.11b:
1 Mbps
-94 dBm
11 Mbps
-87 dBm (PER <= 10%)
802.11g:
6 Mbps
-91 dBm
54 Mbps
-74 dBm (PER <= 10%)
802.11n (2.4 GHz)
MCS0 Mbps
-91 dBm
MCS7 Mbps
-71 dBm
802.11n (5 GHz)
MCS0 Mbps
MCS7 Mbps
-92 dBm
-71 dBm
Bluetooth:
1 Mbps
-83 dBm
(1DH1)
3 Mbps
-75 dBm
(3DH5)
BLE
-86 dBm
Operating Systems Supported
Windows Mobile 5.0, 6.0, 6.1, 6.5
Windows Embedded Compact (CE) 5.0, 6.0, 7.0, 2013
Windows 7, 8, 8.1
Linux 2.6.x, 3.x.x, 4.0.x kernel
Android 4.1.2 (Jellybean) and forward

MSD50NBT
Hardware Integration Guide
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/wireless
10
© Copyright 2015 Laird. All Rights Reserved
Americas: [phone]
Europe: [phone]
Hong Kong: [phone]
Feature
Description
Security
Standards
Wireless Equivalent Privacy (WEP)
Wi-Fi Protected Access (WPA)
IEEE 802.11i (WPA2)
Encryption
Wireless Equivalent Privacy (WEP, RC4 Algorithm)
Temporal Key Integrity Protocol (TKIP, RC4 Algorithm)
Advanced Encryption Standard (AES, Rijndael Algorithm)
Encryption Key Provisioning
Static (40-bit and 128-bit lengths)
Pre-Shared (PSK)
Dynamic
802.1X Extensible Authentication Protocol Types
EAP-FAST
EAP-TLS
EAP-TTLS
PEAP-GTC
PEAP-MSCHAPv2
PEAP-TLS
LEAP
Compliance
ETSI Regulatory Domain
EN 300 328 (Wi-Fi®)
EN 300 328 v1.8.1 (BT 2.1)
EN 301 489-1
EN 301 489-17
EN 301 892
EN 60950-1
EU 2002/95/EC (RoHS)
FCC Regulatory Domain
FCC 15.247 DTS –802.11b/g (Wi-Fi) –2.4 GHz
FCC 15.407 UNII –802.11a (Wi-Fi) –5 GHz
FCC 15.247 DSS –BT 2.1
Industry Canada
RSS-247 –802.11a/b/g/n (Wi-Fi) –2.4 GHz, 5.8 GHz, 5.2 GHz, and 5.4 GHz
RSS-247 –BT 2.1
Certifications
Wi-Fi Alliance
802.11a, 802.11b, 802.11g , 802.11n
WPA Enterprise
WPA2 Enterprise
Cisco Compatible Extensions (Version 4)
Bluetooth SIG Qualification
Warranty
Five Year Limited Lifetime
All specifications are subject to change without notice

MSD50NBT
Hardware Integration Guide
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/wireless
11
© Copyright 2015 Laird. All Rights Reserved
Americas: [phone]
Europe: [phone]
Hong Kong: [phone]
WLAN FUNCTIONAL DESCRIPTION
Overview
The MSD50NBT WLAN block is based on the Qualcomm-Atheros AR6004 802.11a/b/g/n chipset. It is optimized
for low power embedded applications and is configured to operate in dual-band, two-stream (2x2 MIMO) mode.
Its functionality includes:
Improved throughput on the link due to frame aggregation, RIFS (reduced inter-frame spacing), and half
guard intervals.
Support for STBC (space time block codes) and LDPC (Low Density Parity Check) codes.
Improved 11n performance due to features such as 11n frame aggregation (A-MPDU and A-MSDU) and
low-overhead host-assisted buffering (RX A-MSDU and RX A-MPDU). These techniques can improve
performance and efficiency of applications involving large bulk data transfers such as file transfers or high-
resolution video streaming.
Other functionality includes the following:
Feature
Description
Reset Control
CHIP_PWD_L and BT_RST_L pins must be asserted low to reset Wi-Fi and Bluetooth. After
these signals are de-asserted, the radio waits for host communication. Until then, all
modules except the host interface are held in reset.
Once the host has initiated communication, the radio turns on its crystal and then the PLL.
After all clocks are stable and running, the block resets are automatically de-asserted.
Note: Because BT chip derives clock from WLAN, the Bluetooth function should be
powered down/reset whenever WLAN is reset.
System Clocking
(RTC Block)
The MSD50NBT has an RTC block which controls the clocks and power going to other
internal modules. Its inputs consist of sleep requests from these modules and its outputs
consists of clock enable and power signals which are used to gate the clocks going to these
modules. The RTC block also manages resets going to other modules with the device. The
MSD50NBT’s lokig is gouped ito to tpes: high-speed and low-speed.
High Speed Clocking
The reference 26 MHz clock source inside the MSD50NBT drives the PLL and RF synthesizer
of Wi-Fi and Bluetooth. To minimize power consumption, the reference clock source is
powered off in SLEEP, HOST_OFF, and OFF states.
Low Speed Clocking
The MSD50NBT has an 32.768 KHz oscillator that provide slow clock for BT to get deep
sleep mode.
Interface Clock
The host interface clock represents another clock domain for the MSD50NBT. This clock comes from
the SDIO and is independent from the other internal clocks. It drives the host interface logic as well
as certain registers which can be accessed by the host in HOST_OFF and SLEEP states.

MSD50NBT
Hardware Integration Guide
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/wireless
12
© Copyright 2015 Laird. All Rights Reserved
Americas: [phone]
Europe: [phone]
Hong Kong: [phone]
Feature
Description
MAC/BB/RF Block
The MSD50NBT Wireless MAC consists of five major blocks:
Host interface unit (HIU) for bridging to the AHB for bulk data accesses and APB for
register accesses
Ten queue control units (QCU) for transferring TX data
Ten DCF control units (DCU) for managing channel access
Protocol control unit (PCU) for interfacing to baseband
DMA receive unit (DRU) for transferring RX data
Baseband Block
The MSD50NBT baseband module (BB) is the physical layer controller for the 802.11b/g/n
air interface. It is responsible for modulating data packets in the transmit direction and
detecting and demodulating data packets in the receive direction. It has a direct control
interface to the radio to enable hardware to adjust analog gains and modes dynamically.
Clock Sharing
Clock sharing is implemented on the MSD50NBT. The Bluetooth chip (CSR8811) receives a
reference clock from Wi-Fi chip (QCA6004). When Wi-Fi is in power off/reset state, no
26MHz reference clock is available; therefore, bluetooth is also off.

MSD50NBT
Hardware Integration Guide
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/wireless
13
© Copyright 2015 Laird. All Rights Reserved
Americas: [phone]
Europe: [phone]
Hong Kong: [phone]
BLUETOOTH FUNCTIONAL DESCRIPTION
The MSD50NBT Bluetooth (BT) block is based on CSR8811A08 and described in the table below:
Table 3: Bluetooth functions
Feature
Description
HCI-UART Interface
The UART Interface is a standard high-speed UART interface. It operates up to 4 Mbps,
supporting Bluetooth HCI UART interface.
PCM or I2S Interface
Continuous PCM encoded audio data transmission and reception over Bluetooth.
Processor overhead reduction through hardware support for continual
transmission and reception of PCM data.
A bidirectional digital audio interface that routes directly into the baseband layer
of the firmware. It does not pass through the HCI protocol layer.
Hardware on CSR8811 for sending data to and from a SCO connection.
Up to three SCO connections on the PCM interface at any one time.
PCM interface master, generating PCM_SYNC and PCM_CLK.
PCM interface slave, accepting externally generated PCM_SYNC and PCM_CLK.
Various clock formats including:
*Long Frame Sync
*Short Frame Sync
GCI timing environments
13-bit or 16-bit linear, 8-it μ-law or A-law companded sample formats.
Receives and transmits on any selection of three of the first four slots following
PCM_SYNC.
The PCM configuration options are enabled by setting SKEY_PCM_CONFIG32.
CPU and Memory
The CSR8811 uses a 16-bit RISC MCU for low power consumption and efficient use of
memory. The MCU, interrupt controller, and event timer run the Bluetooth software
stack and control the Bluetooth radio and host interfaces.
56 KB of on-chip RAM is provided to support the RISC MCU and is shared between the
ring buffers used to hold voice/data for each active connection and the general-
purpose memory required by the Bluetooth stack.
5 Mb of Internal ROM memory is available on the CSR8811. This memory is provided
for system firmware, storing CSR8811 settings and program code.
Build-in Standard
WLAN Coexistence
The MSD50NBT supports internally the standard WLAN coexistence interface through
the WLAN_ACTIVE, BT_PRIORITY, and BT_ACTIVE pins.
Reference Clock
The BT block is configured for 26 MHz reference clock frequency. The clock source is
provided to BT internally from the WLAN block on demand from BT_CLK_REQ.
Note: The WLAN block must be initialized prior before BT clock sharing is enabled.
BT Low Energy
The MSD50NBT supports Low Energy specification which allows for connection to
devices with single mode LE function (such as a watch, sensor, and HID). The
implementation is optimized for coexistence with WLAN.
Reset
The pin BT_RST_L resets and powers down the BT block.
Holding the BT_RST_L pin at GND turns off the entire BT block; all state information is
lost. To ensure a full reset, the reset signal should be asserted for a period greater than
5 ms.

MSD50NBT
Hardware Integration Guide
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/wireless
14
© Copyright 2015 Laird. All Rights Reserved
Americas: [phone]
Europe: [phone]
Hong Kong: [phone]
Feature
Description
Radio
The BT radio shares the single antenna port with the WLAN through an internal 3-way
RF switch. The MSD50NBT implements WLAN/BT coexistence internally.
VDDIO is to set the I/O voltage internally with either 1.8 V or 3.3 V to ensure same
voltage level for the internal Wi-Fi and BT coexistence signal. Refer to the reference
design specifications for details.
BT_WAKEUP_HOST
Pin-12 on MSD50NBT is reserved for BT to wake host from deep sleep mode. Current
s/w may not support it. Contact Laird for more information.
VDDIO
Pin-21 on MSD50NBT is WLAN Host IO (SDIO) power supply input. Can be either 1.8V
or 3.3V.
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings
Table 4 summarizes the absolute maximum ratings and Table 5 lists the recommended operating conditions for
the MSD50NBT. Absolute maximum ratings are those values beyond which damage to the device can occur.
Functional operation under these conditions, or at any other condition beyond those indicated in the
operational sections of this document, is not recommended.
Note: Maximum rating for signals follows the supply domain of the signals.
Table 4: Absolute Maximum Ratings
Symbol (Domain)
Parameter
Max Rating
Unit
VDDIO
WLAN host SDIO interface and BT I/O supply
-0.3 to 4.0
V
VCC3_3
External 3.3V power supply
-0.3 to 3.6
V
Storage
Storage Temperature
-40 to +85
°C
ANT1; ANT2
Maximum RF input (reference to 50-Ωinput)
+10
dBm
ESD
Electrostatic discharge tolerance
2000
V
Recommended Operating Conditions
Table 5: Recommended Operating Conditions
Symbol (Domain)
Parameter
Min
Typ
Max
Unit
VDDIO
WLAN host interface and BT I/O
supply
1.71/3.2
1.8/3.3
1.89/3.46
V
VCC3_3
External 3.3V power supply
3.2
3.30
3.46
V
T-ambient
Ambient temperature
-30
25
85
°C
DC Electrical Characteristics
Table 6 and Table 7 list the general DC electrical characteristics over recommended operating conditions (unless
otherwise specified).

MSD50NBT
Hardware Integration Guide
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/wireless
15
© Copyright 2015 Laird. All Rights Reserved
Americas: [phone]
Europe: [phone]
Hong Kong: [phone]
Table 6: General DC Electrical Characteristics (For 3.3V I/O Operation)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VIH
High Level Input Voltage
0.7 x VDD
V
VIL
Low Level Input Voltage
0.3 x VDD
V
IIL
Input
Leakage
Current
Without Pull-
up or Pull-
down
0V < VIN < VDD
0V < VOUT< VDD
0
-3
nA
With Pull-up
0 V < VIN < VDD
0V < VOUT < VDD
16
48
µA
With Pull-
down
0V < VIN < VDD
0V < VOUT < VDD
-14
-47
µA
VOH
High Level Output Voltage
IOH = -4mA
0.9 x VDD
V
IOH = -12mA
0.9 x VDD
V
VOL
Low Level Output Voltage
IOH = 4mA
0.1 x VDD
V
IOH = 12mA
0.1 x VDD
V
Table 7: General DC Electrical Characteristics (For 1.8V I/O Operation)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VIH
High Level Input Voltage
0.7 x VDD
V
VIL
Low Level Input Voltage
0.3 x VDD
V
IIL
Input
Leakage
Current
Without Pull-up
or Pull-down
0V < VIN < VDD
0V < VOUT < VDD
0
-3
nA
With Pull-up
0V < VIN < VDD
0V < VOUT < VDD
3.5
13
µA
With Pull-down
0V < VIN < VDD
0V < VOUT < VDD
-6.2
-23
µA
VOH
High Level Output Voltage
IOH = -4mA
0.9 x VDD
V
IOH = -12mA
0.9 x VDD
V
VOL
Low Level Output Voltage
IOH = 4mA
0.1 x VDD
V
IOH = 12mA
0.1 x VDD
V

MSD50NBT
Hardware Integration Guide
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/wireless
16
© Copyright 2015 Laird. All Rights Reserved
Americas: [phone]
Europe: [phone]
Hong Kong: [phone]
Figure 1: Power On/Off Timing
Figure 2: Power On/Off Timing
Table 8: Timing Diagram Definitions
Timing
Description
Min
Unit
Tb
Time between VDD33 (3.3V )supplies valid, to WiFi reset (pin-
48;CHIP_PWD_L ) negation.
Note: have suitable 10K ohm Pull-up on pin-48, already. No extra
pull-up resistor is required.
5
µsec
Tc
Time between VDD33 (3.3V) supplies valid and
BT_RST_L (pin-32) negation
5
msec
Td
Time between WiFi reset (pin-48;CHIP_PWD_L ) negation and
VDD33 (3.3V) invalid, or time between BT_RST_L (pin-32) negation
and VDD33(3.3V) invalid.
0
µsec
Tf
Time of WiFi reset (pin-48; CHIP_PWD_L ) assertion during reset or
power down period. 3.3V should keep ON.
5
µsec
Tg
Time of BT_RST_L (pin-32) assertion during reset or power down
period. 3.3V should keep ON.
5
We suggest that Tb and Tf timing is greater than 5µsec but no longer than 100 msec.

MSD50NBT
Hardware Integration Guide
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/wireless
17
© Copyright 2015 Laird. All Rights Reserved
Americas: [phone]
Europe: [phone]
Hong Kong: [phone]
WLAN Radio Receiver Characteristics
Table 9 and Table 10 summarize the WLAN MSD50NBT receiver characteristics.
Table 9: WLAN Receiver Characteristics for 2.4 GHz Signal Chain Operation
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Frx
Receive input frequency range
2.412
2.484
GHz
Srf
Sensitivity
CCK, 1 Mbps
See Note3
-94
dBm
CCK, 11 Mbps
-87
OFDM, 6 Mbps
-91
OFDM, 54 Mbps
-74
HT20, MCS0
-91
HT20, MCS7
-71
Radj
Adjacent channel rejection
OFDM, 6 Mbps
See Note4
32
dB
OFDM, 54 Mbps
16
HT20, MCS0
31
HT20, MCS7
14
3Performance data are measured under signal chain operation.
4Performance data are measured under signal chain operation.
Table 10: WLAN Receiver Characteristics for 5 GHz Dual Chain Operation
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Frx
Receive input frequency
range
5.15
5.825
GHz
Srf
Sensitivity
OFDM, 6 Mbps
See Note5
-92
dBm
OFDM, 54 Mbps
-74
HT20, MCS0
-92
HT20, MCS7
-71
HT40, MCS0
-86
HT40, MCS7
-66
Radj
Adjacent channel rejection
OFDM, 6 Mbps
See Note6
22
dB
OFDM, 54 Mbps
9
HT20, MCS0
20
HT20, MCS7
19
5Performance data are measured under signal chain operation.
6Performance data are measured under signal chain operation.

MSD50NBT
Hardware Integration Guide
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/wireless
18
© Copyright 2015 Laird. All Rights Reserved
Americas: [phone]
Europe: [phone]
Hong Kong: [phone]
WLAN Transmitter Characteristics
Table 11: WLAN Transmitter Characteristics for 2.4 GHz Per Chain Operation
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Ftx
Transmit output frequency range
2.412
2.484
GHz
Pout
Output power
See Note7
11b mask compliant
1Mbps
17
dBm
11g mask compliant
6Mbps
17
11g EVM compliant
54Mbps
14
11n HT20 mask compliant
MCS0
17
11n HT20 EVM compliant
MCS7
13
11n HT20 EVM compliant
MCS15
13
ATx
Transmit power accuracy at 17 dBm
-
-
+ 2.0
dB
Freq.
Mode/Rate (Mbps)
Output Power Per
Chain (dBm)
Typical Current
Consumption Single
Chain (mA)8
Max. Current
Consumption Single
Chain (mA)8
2412MHz
1 Mbps
18dBm
420
560
54 Mbps
15dBm
350
450
HT20 MCS7
14dBm
340
420
2442MHz
1 Mbps
18dBm
420
560
54 Mbps
15dBm
350
450
HT20 MCS7
14dBm
340
420
2472MHz
1 Mbps
18dBm
420
560
54 Mbps
15dBm
350
450
HT20 MCS7
14dBm
340
420
Table 12: WLAN Transmitter Characteristics for 5 GHz Per Chain Operation
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Ftx
Transmit output frequency range
5.15
5.925
GHz
Pout
Output power
See Note3
11a mask compliant
6Mbps
17
dBm
11a EVM compliant
54Mbps
14
11n HT20 mask compliant
MCS0
17
11n HT20 EVM compliant
MCS7
13
11n HT20 EVM compliant
MCS15
13
11n HT40 mask compliant
MCS0
14
11n HT40 EVM compliant
MCS7
11
11n HT40 EVM compliant
MCS15
11
ATx
Transmit power accuracy at 17dBm
-
-
+ 2.0
dB

MSD50NBT
Hardware Integration Guide
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/wireless
19
© Copyright 2015 Laird. All Rights Reserved
Americas: [phone]
Europe: [phone]
Hong Kong: [phone]
Freq.
Mode/Rate
[Mbps]
Output Power Per
Chain [dBm]
Typical Current
Consumption Single
Chain (mA)8
Max. Current
Consumption Single
Chain (mA)8
5180MHz
54 Mbps
15dBm
490
590
HT20 MCS7
14dBm
450
560
HT40 MCS7
12dBm
470
540
5500MHz
54 Mbps
15dBm
490
590
HT20 MCS7
14dBm
450
560
HT40 MCS7
12dBm
470
540
5825MHz
54 Mbps
15dBm
490
590
HT20 MCS7
14dBm
450
560
HT40 MCS7
12dBm
470
540
7Performance data are measured under single chain operation.
Note: Final TX power values on each channels are limited by the regulatory certification test limit.
Note: 2.4GHz does not support HT40 operation, only 5GHz support HT40 operation.
BLUETOOTH RADIO CHARACTERISTICS
Table 13 through Table 14 describe the basic rate transmitter performance, enhanced data transmitter
performance, basic rate receiver performance, enhanced rate receiver performance, and current consumption
conditions at 25°C.
Table 13: Basic Rate Transmitter Performance Temperature at 25°C (3.3V)
Test Parameter
Min
Typ
Max
BT Spec.
Unit
Maximum RF Output Power
2
6
—
–6 to +10
dBm
Frequency Range
2.4
—
2.4835
2.4 ≤f ≤2.4835
GHz
20 dB Bandwidth
—
925
—
≤1000
KHz
Adjacent Channel TX Power F = F0 +
2 MHz
—
–36
—
≤–20
dBm
Adjacent Channel TX Power F = F0
+3 MHz
—
–42
—
≤–40
dBm
Δf1avg Maximum Modulation
140
165
175
140 < Δf1avg < 175
KHz
Δf2max Minimum Modulation
—
135
—
≥115
KHz
Δf2avg/Δf1avg
—
0.9
—
≥0.80
—
Initial Carrier Frequency
—
5
—
≤±75
KHz
Drift Rate
—
5
—
≤20
KHz/50 µs
Drift (DH1 packet)
—
6
—
≤25
KHz
Drift (DH5 packet)
—
7
—
≤40
KHz

MSD50NBT
Hardware Integration Guide
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/wireless
20
© Copyright 2015 Laird. All Rights Reserved
Americas: [phone]
Europe: [phone]
Hong Kong: [phone]
Table 14: Enhanced Data Rate Transmitter Performance 25°C (3.3V)
Test Parameter
Min
Typ
Max
BT Spec.
Unit
Relative Transmit Power
–1
3
6
–4 to +1
dBm
Max Carrier Frequency
Stability |wo|
π/4 DQPSK
—
1
—
≤±10
KHz
8 DPSK
—
1
—
Max Carrier Frequency
Stability |wi|
π/4 DQPSK
—
1
—
≤±75
KHz
8 DPSK
—
1
—
Max Carrier Frequency
Stability |w0+wi|
π/4 DQPSK
—
2
—
≤±75
KHz
8 DPSK
—
1.5
—
RMS DEVM
π/4 DQPSK
—
6
—
≤20
%
8 DPSK
—
6
—
≤13
%
Peak DEVM
π/4 DQPSK
—
16
—
≤35
%
8 DPSK
—
15
—
≤25
%
99% DEVM
π/4 DQPSK
—
12
—
≤30
%
8 DPSK
—
12
—
≤20
%
EDR Differential Phase Encoding
—
99
—
≥99
%
Adjacent Channel Power
F≥± 3MHz
—
–60
—
< –40
dBm
F = ± 2MHz
—
–28
—
≤–20
dBm
F = ±1MHz
—
–32
—
≤–26
dB
Table 15: Basic Rate Receiver Performance at 3.3V
Test Parameter
Min
Typ
Max
BT Spec.
Unit
Sensitivity
BER ≤0.1%
—
–84
-78
≤–70
dBm
Maximum Input
BER ≤0.1%
–20
-10
—
≥–20
dBm
Carrier-to-Interferer Ratio
(C/I)
Co-Channel
—
—
11
11
Adjacent Channel
(± 1 MHz)
—
-4/-2
0
0
dB
Second Adjacent
Channel (± 2 MHz)
—
-35/-28
–30
–30
dB
Third Adjacent
Channel (± 3 MHz)
—
-42
–40
–40
dB
Maximum Level of Intermodulation Interferers
–39
-30
-
≥–39
dBm