LB-Link BL-M8821CS1 User manual

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BL-M8821CS1
SPECIFICATION
IEEE 802.11 a/b/g/n/ac 1T1R WLAN with Bluetooth2.1/4.2 with SDIO and
HS-UART MIXED INTERFACE
Version: 1.0
Customer
Date
Model Name BL-M8821CS1
Part NO.
Blink Approve Field
ENGINEER QC SALES
Customer Approve Field
ENGINEER QC MANUFACTORY PURCHASING

B-LINK ELECTRONIC CO., LTD in shenzhen
1
Contents
1. General Description .............................................................................................................................. 2
2. The range of applying ........................................................................................................................... 2
3. Product Specification ............................................................................................................................ 2
3.1 Function Block diagram ............................................................................................................................. 2
3.2 Electrical and Performance Specification .................................................................................................. 3
3.3Power Supply DC Characteristics ................................................................................................................ 4
3.4 Product Photo ............................................................................................................................................ 6
3.5 Mechanical Specification ........................................................................................................................... 6
3.6 Product Pin Definition ............................................................................................................................... 7
4. Supported platform .............................................................................................................................. 8
5. Peripheral Schematic Reference Design ................................................................................................ 9
6. Package Information ............................................................................................................................ 9
7. Typical Solder ReflowProfile ................................................................................................................. 9
8. Precautions for use ............................................................................................................................ 10

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1. General Description
BL-M8821CS1 is a small size and low profile of WiFi+BT combo module with LGA (Land-Grid Array)
footprint, board size is 12mm*12mm with module height of 2.35mm. It can beeasily manufactured
on SMT process and highly suitable for tablet PC, ultra book, mobile device and consumer products.
It provides GSPI/SDIO interface for WiFi to connect with host processor and high speed UART
interface for BT. It also has a PCM interface for audio data transmission with direct link to external
audio codec via BT controller. The WiFi data rate can go up to 433.3Mbps in theory by using 1stream
802.11a/b/g/n/ac MIMO technology and Bluetooth can support BT2.1+EDR/BT3.0 and BT4.2.
2. The range of applying
MID, networking camera, STB GPS, E-book, Hard disk player, Network Radios, PSP, etc, the device
which need be supported by wireless networking.
3. Product Specification
3.1 Function Block diagram

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3.2 Electrical and Performance Specification
Item Description
BL-M8821CS1Product Name
RTL8821CSMajor Chipset
SDIO 1.1/ 2.0/ 3.0Host Interface
Standard
WiFi: IEEE802.11a, IEEE802.11b, IEEE802.11g, IEEE802.11n, IEEE802.11ac,
BT: BT V2.1 BR+EDR, BT V3.0+HS, BT V4.0 LE+ BR/EDR , BT V4.1, BT V4.2
Frequency Range
Modulation Type
Wifi：802.11b: CCK, DQPSK, DBPSK
802.11a/g: 64-QAM, 16-QAM, QPSK, BPSK
802.11n: 64-QAM, 16-QAM, QPSK, BPSK
802.11ac: 256-QAM, 64-QAM, 16-QAM, QPSK, BPSK
BT: 8DPSK, π /4 DQPSK, GFSK
Working Mode Infrastructure, Ad-Hoc
Data Transfer Rate
Wifi：802.11b: 11, 5.5, 2, 1 Mbps
802.11a/g: 54, 48, 36, 24, 18, 12, 9, 6 Mbps
802.11n: MCS 0 to 7 for HT20/HT40
802.11ac: MCS 0 to 9 for VHT80
BT: 1 Mbps for Basic Rate and LE Mode; 2,3 Mbps for Enhanced Data Rate
Spread Spectrum
IEEE 802.11b: DSSS (Direct Sequence Spread Spectrum)
IEEE 802.11a/g/n/ac:OFDM (Orthogonal Frequency Division Multiplexing)
BT: FHSS(Frequency-Hopping Spread Spectrum)
Sensitivity @PER
WiFi: 11ac: mcs9 VHT80: -58dBm@10%PER
135M:-68dBm@10%PER
54M:-75dBm@10%PER；
11M:-86dBm@10%PER；
6M: -90dBm@10%PER；
1M: -92dBm@10%PER;
BT: -89dBm@1Mbps, -85dBm@2Mbps, -83dBm@3Mbps；
RF Power(Typical)
2.4GWiFi:15.98dBm(Max)
5.2GWiFi:11.98dBm(Max)
5.8GWiFi:9.86dBm(Max)
BT: 4.96dBm(Max)
BLE:3.56dBm(Max)
Connect to the external antenna through the half holeAntenna type
Dimension(L*W*H) 12.0*12.0*2.35mm (LxWxH) ，Tolerance: +-0.15mm
3.3V +/-0.2VPower supply
standby mode 82mA@3.3V ,Power Consumption
TX mode [email protected]
BT:2.402~2.48GHz(BT)
2.4GWIFI:2.412~2.472GHz(USA 11Channels, Europe and others 13 channels)
B5GWIFI:5.18~5.24GHz/5.745~5.825GHz

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-10°C to +50°CWorking Temperature
Storage temperature -40°C to +85°C
3.3Power Supply DC Characteristics
Vcc=3.3V，Ta= 25 °C，unit: mA
MaxSupply current Typ.
8982Standby (RF disabled)
802.11b 1Mbps 11Mbps
Max.Typ.Max.Typ.Supply current
335350TX mode 330 320
RX mode 90 969295
802.11g 6Mbps 54Mbps
Max.Typ.Max.Typ.Supply current
TX mode 235250 120 110
RX mode 98959490
802.11n HT20 MCS0 MCS7
Max.Typ.Max.Typ.Supply current
105115230240TX mode
99989490RX mode
802.11n HT40 MCS0 MCS7
Max.Typ.Max.Typ.Supply current
100110225235TX mode
RX mode 90 999895
802.11ac VHT80 MCS0 MCS9
Max.Typ.Max.Typ.Supply current
105115155166TX mode
RX mode 90 95 98 99

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3.4 Product Photo
TOP Bottom
3.5 Mechanical Specification
Tolerance: +-0.15mm

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3.6 Product Pin Definition
1 GND Grond
2 WIFI/BT_ANT WIFI/BT_ANT
3 GND Grond
4,5 NC NC
6 BT_WAKE HOST wake-up Bluetooth device
7 BT_HOST_WAKE Bluetooth device to wake-up HOST
8 NC NC
9 VABT Battery LDO input,5.5V-2.8V
10,11 NC NC
12 WL_DSI#
Shared with GPIO9 This Pin Can Externally Shutdown the
RTL8821CS
WLAN function when WL_DIS# is Pulled Low. When this
pin pulled low, SDIO interface will be disabled.
13 WL_HOST_WAKE WLAN to wake-up HOST
14 SD_D2 SDIO data line 2
15 SD_D3 SDIO data line 3
16 SD_CMD SDIO command line
17 SD_CLK SDIO CLK line
18 SD_D0 SDIO data line 0
19 SD_D1 SDIO data line 1
20 GND Grond
21 NC NC
22 VDD_IO supply voltage for SDIO IO/3.3V
Pin No： Function Description

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23 NC NC
24 SUSCLK_IN Shared with EECS. External 32K or RTC clock input
25 PCM_DOUT PCM Data output
26 PCM_CLK PCM Clock
27 PCM_DIN PCM data input
28 PCM_SYNC PCM sync signal
29,30 NC NC
31 GND Grond
32 NC NC
33 GND Grond
34 BT_DIS#
Shared with GPIO11 This Pin Can Externally Shutdown
the RTL8821CS
WLAN function when BT_DIS#is Pulled Low. When this
pin pulled low, UART interface will be also disabled.
35 NC NC
36 GND Grond
37,38,39,40 NC NC
41 UART_RTS UART_RTS
42 UART_OUT HOST Data output
43 UART_IN HOST Data input
44 UART_CTS UART_CTS
4. Supported platform
Operating System CPU Framework Driver
LINUX(kernel2.6.35~3.18.17) ARM, MIPSII Enable

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5. Peripheral Schematic Reference Design
6. Package Information

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7. Typical Solder ReflowProfile
8. Precautions for use
1. Pls handle the module under ESD protection.
2. Reflow soldering shall be done according to the solder reflow profile. Peak temperature
245℃.
3.Products require baking before mounting if humidity indicator cards reads >30% temp <30 degree C, humidity
< 70% RH, over 96 hours.
Baking condition: 125 degree C, 12 hours
Baking times: 1 time
4. Storage Condition: Moisture barrier bag must be stored under 30 degree C, humidity under 85% RH. The
calculated shelf life for the dry packed product shall be a 12 months from the bag seal date. Humidity
indicator cards must be blue, <30%.

FCC Statement
This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) thi
s device may not cause harmful interference, and (2) this device must accept any interference received, incl
uding interference that may cause undesired operation.
Changes or modifications not expressly approved by the party responsible for compliance could void the user’
s authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursua
nt to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful inte
rference in a residential installation. This equipment generates uses and can radiate radio frequency energy a
nd, if not installed and used in accordance with the instructions, may cause harmful interference to radio com
munications. However, there is no guarantee that interference will not occur in a particular installation. If this
equipment does cause harmful interference to radio or television reception, which can be determined by turn
ing the equipment off and on, the user is encouraged to try to correct the interference by one or more of the
following measures:
‐Reorient or relocate the receiving antenna.
‐Increase the separation between the equipment and receiver.
‐Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
‐Consult the dealer or an experienced radio/TV technician for help important announcement
Important Note:
Radiation Exposure Statement
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This
equipment should be installed and operated with minimum distance
0cm between the radiator and your body.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
Country Code selection feature to be disabled for products marketed to the US/Canada.
This device is intended only for OEM integrators under the following conditions:
1. The antenna must be installed such that 20 cm is maintained between the antenna and users, and
2. The transmitter module may not be co-located with any other transmitter or antenna,
3. For all products market in US, OEM has to limit the operation channels in CH1 to CH11 for 2.4G band
by supplied firmware programming tool. OEM shall not supply any tool or info to the end-user
regarding to Regulatory Domain change. (if modular only test Channel 1-11)
As long as the three conditions above are met, further transmitter testing will not be required. However, the
OEM integrator is still responsible for testing their end-product for any additional compliance requirements
required with this module installed.
Important Note:
In the event that these conditions cannot be met (for example certain laptop configurations or co-location
with another transmitter), then the FCC authorization is no longer considered valid and the FCC ID cannot be
used on the final product. In these circumstances, the OEM integrator will be responsible for re-evaluating the
end product (including the transmitter) and obtaining a separate FCC authorization.
End Product Labeling
The final end product must be labeled in a visible area with the following" Contains FCC ID: 2AL6KBL-
M8821CS1 "
Manual Information to the End User
The OEM integrator has to be aware not to provide information to the end user regarding how to install or
remove this RF module in the user’s manual of the end product which integrates this module.
The end user manual shall include all required regulatory information/warning as show in this manual.

Integration instructions for host product manufacturers according to KDB 996369 D03 OEM
Manual v01
2.2 List of applicable FCC rules
CFR 47 FCC PART 15 SUBPART C has been investigated. It is applicable to the modular transmitter
2.3 Specific operational use conditions
This module is stand-alone modular. If the end product will involve the Multiple simultaneously transmitting condition or different
operational conditions for a stand-alone modular transmitter in a host, host manufacturer have to consult with module manufacturer
for the installation method in end system.
2.4 Limited module procedures
Not applicable
2.5 Trace antenna designs
Not applicable
2.6 RF exposure considerations
This equipment
complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be
installed and operated with minimum distance 20cm between the radiator & your body.
2.7 Antennas
This radio transmitter 2AL6KBL-M8821CS1 has been approved by Federal Communications Commission to operate with the
antenna types listed below, with the maximum permissible gain indicated. Antenna types not included in this list that have a gain
greater than the maximum gain indicated for any type listed are strictly prohibited for use with this device.
Model Type Connector
Peak gain ( dBi )
2400-2483.5
MHz
5150-5250
MHz
5250-5350
MHz
5470-5725
MHz
5725-5850
MHz
2400-2483.5
MHz PIFA/
Dipole
/ 2.0dBi / / / /
2.4GWIFI
/ 2.0dBi / / / /
5GWIFI
/ / 2.0dBi / / 2.0dBi
2.8 Label and compliance information
The final end product must be labeled in a visible area with the following" Contains FCC ID:2AL6KBL-M8821CS1".
2.9 Information on test modes and additional testing requirements
Host manufacturer is strongly recommended to confirm compliance with FCC requirements for the transmitter when the module is
installed in the host.
2.10 Additional testing, Part 15 Subpart B disclaimer
Host manufacturer is responsible for compliance of the host system with module installed with all other applicable requirements for
the system such as Part 15 B.
PIFA/
Dipole
PIFA/
Dipole