Panasonic INDUSTRY PAN9028 Quick setup guide

Wireless Connectivity
PAN9028
Wi-Fi Dual Band 2.4 G z/5 G z and Bluetooth
®
Module
Module Integration Guide
Rev. 1.0

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PAN9028 Wi-Fi/Bluetooth Module 1 About This Document
Module Integration Guide Rev. 1.0 Page 2 of 45
Overview
The PAN9028 is a 2.4 G z/5 G z ISM band Wi-Fi
and Bluetooth radio module, which includes a
wireless radio and a power management IC for
easy integration of Wi-Fi and Bluetooth connectivity
into various electronic devices.
Features
•
Dual band 2.4 G z/5 G z 802.11 a/b/g/n/ac Wi-Fi
and Bluetooth combo module
•
Supports 802.11i security standards through AES,
CCMP, and more security mechanism
•
802.11e Quality of Service is supported for
multimedia application
•
IEEE 802.11ac (Wave 2), 1×1 spatial stream with
data rates up to 433 Mbps (MCS9, 80 M z
channel bandwidth)
•
IEEE 802.11ac MU-MIMO beamformee
•
Bluetooth 5 (includes Low Energy)
•
Dual simultaneous and independent WLAN and
Bluetooth operation
•
Dynamic Rapid Channel Switching (DRCS) for
simultaneous operation in 2.4 G z and 5 G z
bands
•
Indoor location and navigation with
IEEE 802.11mc
•
Coexistence interface for arbitration of co-located
WLAN, Bluetooth, or mobile wireless system
(e.g. LTE or ZigBee
®
)
•
Generic interfaces include SDIO 3.0 and high
speed UART for host processor connection
•
Software driver Linux
®
Characteristics
•
Surface Mount Type (SMT)
24 mm × 12 mm × 2.8 mm
•
NXP
®
88W8987 WLAN 2.4 G z/5 G z and
Bluetooth single-chip solution inside
•
Single power supply: 3.3 V with Marvell
®
88PG823 Power Management IC (optional)
•
Tx power: 16 dBm at 802.11b
•
Rx sensitivity: -97 dBm at 802.11b DSSS 1 Mbps
•
IEEE 802.11ac 20 M z, 40 M z, 80 M z
channel bandwidth
•
Long and Short Guard Interval support
•
Current consumption Wi-Fi typical 320 mA (at Tx)
and 70 mA (at Rx)
•
SDIO 1 bit or 4 bit
•
Wide temperature range of -30 °C to 85 °C
Block Diagram
Chip
Antenna
SPDT
88W8987
Radio SoC
UART
GPIOs
PDN
V
DD
+3.3 V
BPF
RF Pad
PAN9028
Wi-Fi a d Bluetooth
â
Radio Module
IEEE 802.11 a/b/g/ /ac
Bluetooth 5 (BR, Low E ergy, a d EDR)
DPX
SPDT
PCM Interface
SDIO Interface
Sleep Clock
RF SW
PMIC
88PG823
Crystal
26 M z
V
IO
/V
IOSD
COEX

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PAN9028 Wi-Fi/Bluetooth Module 1 About This Document
Module Integration Guide Rev. 1.0 Page 3 of 45
By purchase of any of the products described in this document the customer accepts the document's
validity and declares their agreement and understanding of its contents and recommendations. Panasonic
Industrial Devices Europe Gmb (Panasonic) reserves the right to make changes as required at any time
without notification. Please consult the most recently issued
Module Integration Guide before initiating or
completing a design.
© Panasonic Industrial Devices Europe Gmb 2021.
This specification sheet is copyrighted.
Reproduction of this document is permissible only if reproduction is
without alteration and is accompanied by all associated warranties, conditions, limitations, and notices.
Do
not disclose it to a third party.
All rights reserved.
This Module Integration Guide does not lodge the claim to be complete and free of mistakes.
E gi eeri g Samples (ES)
If Engineering Samples are delivered to the customer, these samples have the status “Engineering
Samples”. This means that the design of this product is not yet concluded. Engineering Samples may be
partially or fully functional, and they may differ from the published Product Specification.
Engineering Samples are not qualified and they are not to be used for reliability testing or series
production.
Disclaimer
The customer acknowledges that samples may deviate from the Module Integration Guide and may bear
defects due to their status of development and the lack of qualification mentioned above.
Panasonic rejects any liability or product warranty for Engineering Samples. In particular, Panasonic
disclaims liability for damages caused by:
 The use of the Engineering Sample other than for evaluation purposes, particularly the
installation
or integration in another product to be sold by the customer,
 Deviation or lapse in function of the Engineering Sample,
 Improper use of the Engineering Sample.
Panasonic Industrial Devices Europe Gmb disclaims any liability for consequential and incidental
damages. In case of any queries regarding the Engineering Samples, please contact your local sales
partner or the related product manager.
The information contained herein is presented only as guidance for Product use. No responsibility is
assumed by Panasonic for any infringement of patents or any other intellectual property rights of third
parties that may result from the use of Product. No license to any intellectual property right is granted by
this document, whether express or implied, by estoppel or otherwise.
Description of hardware, software, and other information in this document is only intended to illustrate the
functionality of the referred Panasonic product. It should not be construed as guaranteeing specific
functionality of the product as described or suitable for a particular application.
Any provided (source) code shall not be used or incorporated into any products or systems whose
manufacture, use or sale is prohibited under any applicable laws or regulations.
Any outlined or referenced (source) code within this document is provided on an “as is” basis without any
right to technical support or updates and without warranty of any kind on a free of charge basis according
to § 516 German Civil Law (BGB) including without limitation, any warranties or conditions of title, non
infringement, merchantability, or fitness for a particular purpose. Customer acknowledges that (source)
code may bear defects and errors.

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PAN9028 Wi-Fi/Bluetooth Module 1 About This Document
Module Integration Guide Rev. 1.0 Page 4 of 45
The third-party tools mentioned in this document are offered by independent third-party providers who are
solely responsible for these products. Panasonic has no responsibility whatsoever for the performance,
product descriptions, specifications, referenced content, or any and all claims or representations of these
third-party providers. Panasonic makes no warranty whatsoever, neither express nor implied, with respect
to the goods, the referenced contents, or any and all claims or representations of the third-party providers.
To the maximum extent allowable by Law Panasonic assumes no liability whatsoever including without
limitation, indirect, consequential, special, or incidental damages or loss, including without limitation loss of
profits, loss of opportunities, business interruption, and loss of data.

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PAN9028 Wi-Fi/Bluetooth Module 1 About This Document
Module Integration Guide Rev. 1.0 Page 5 of 45
Table of Co te ts
1 About This Docume t ......................................................................................................................... 7
1.1 Purpose and Audience .................................................................................................. 7
1.2 Revision istory ............................................................................................................. 7
1.3 Use of Symbols ............................................................................................................. 7
1.4 Related Documents ....................................................................................................... 8
2 Overview .............................................................................................................................................. 9
3 PAN9028 Module ............................................................................................................................... 10
3.1 Block Diagram ............................................................................................................. 10
3.2 Land Pattern ................................................................................................................ 11
3.3 Footprint ...................................................................................................................... 12
3.4 Solder Mask ................................................................................................................. 13
3.5 Placement .................................................................................................................... 13
4 Power Supply .................................................................................................................................... 15
5 RF Path .............................................................................................................................................. 16
5.1 External Antenna ......................................................................................................... 16
5.2 RF Trace ...................................................................................................................... 16
6 O e-Layer Example for Module Varia t ENWF940[x]A1EF ........................................................... 19
7 mSDIO Adapter ................................................................................................................................. 20
7.1 Functional Blocks ........................................................................................................ 20
7.2 Resistor Jumper Configuration .................................................................................... 20
7.3 Part Placement ............................................................................................................ 21
8 Refere ce Desig .............................................................................................................................. 22
8.1 Schematic .................................................................................................................... 22
8.2 PCB Layout ................................................................................................................. 22
9 Cautio s ............................................................................................................................................ 24
9.1 Design Notes ............................................................................................................... 24
9.2 Installation Notes ......................................................................................................... 24
9.3 Usage Condition Notes ................................................................................................ 25
9.4 Storage Notes .............................................................................................................. 25
9.5 Safety Cautions ........................................................................................................... 25
9.6 Other Cautions ............................................................................................................ 26
9.7 Restricted Use ............................................................................................................. 27
10 Regulatory a d Certificatio I formatio ....................................................................................... 28
10.1 Federal Communications Commission (FCC) for US .................................................. 28
10.2 Innovation, Science, and Economic Development (ISED) for Canada ........................ 32
10.3 European Conformity According to RED (2014/53/EU) ............................................... 40
10.4 Bluetooth Qualification ................................................................................................. 44
10.5 Ro S And REAC Declaration ................................................................................... 44
11 Co tact Details .................................................................................................................................. 45
11.1 Contact Us ................................................................................................................... 45

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PAN9028 Wi-Fi/Bluetooth Module 1 About This Document
Module Integration Guide Rev. 1.0 Page 6 of 45
11.2 Product Information ..................................................................................................... 45

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PAN9028 Wi-Fi/Bluetooth Module 1 About This Document
Module Integration Guide Rev. 1.0 Page 7 of 45
1 About This Docume t
1.1 Purpose a d Audie ce
This Module Integration Guide is intended to support the easy integration of the PAN9028 into a
product and to ensure the compliance with regulatory requirements.
This guide gives an overview about the hardware design requirements by providing a reference
design, which is the evaluation board of the PAN9028.
It is intended for hardware design and Original Equipment Manufacturers (OEM) engineers.
The product is referred to as “the PAN9028” or “the module” within this document.
1.2 Revisio History
Revisio Date Modificatio s/Remarks
0.1 2018-05-08 First preliminary version
0.2 2021-03-15 Changed SDIO stick to mSD stick. New design. Updated formatting.
Changed document type and structure (“Design Guide” into “Module
Integration Guide”). Corrected current consumption. Corrected cutout
area. Updated chapter “Power Supply”. Removed chapter “Power
Configuration Examples for ENWF940[x]A1EF”. Updated chapter
“Placement”. Updated picture “Solder Mask Layout”. Updated chapter
“Functional Blocks”.
1.0 2021-08-26 Updated pictures: “Block Diagram” and “Land Pattern”. Updated features.
Added regulatory chapter. Changed mSD Reference Design to mSD-U
1.3 Use of Symbols
Symbol Descriptio
Note
Indicates important information for the proper use of the product.
Non-observance can lead to errors.
Atte tio
Indicates important notes that, if not observed, can put the product’s functionality
at risk.
Tip
Indicates useful information designed to facilitate working with the module and
software.

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PAN9028 Wi-Fi/Bluetooth Module 1 About This Document
Module Integration Guide Rev. 1.0 Page 8 of 45
Symbol Descriptio
 [chapter number]
[chapter title]
Cross Refere ce
Indicates cross references within the document.
Example:
Description of the symbols used in this document  1.3 Use of Symbols.

Requireme t
Indicates a requirement that must be met before the corresponding tasks can be
completed.

Result
Indicates the result of a task or the result of a series of tasks.
This fo t GUI Text
Indicates fixed terms and text of the graphical user interface.
Example:
Click Save.
Me u > Me u item Path
Indicates a path, e.g. to access a dialog.
Example:
In the menu, select File > Setup page.
This font File Names, Messages, User I put
Indicates file names or messages and information displayed on the screen or to
be selected or entered by the user.
Examples:
pan1760.c contains the actual module initialization.
The message Failed to save your data is displayed.
Enter the value Product 123.
Key Key
Indicates a key on the keyboard, e.g. F10 .
1.4 Related Docume ts
For related documents please refer to the Panasonic website  11.2 Product Information.

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PAN9028 Wi-Fi/Bluetooth Module 2 Overview
Module Integration Guide Rev. 1.0 Page 9 of 45
2 Overview
The PAN9028 is a dual band 2.4 G z and 5 G z 802.11 a/b/g/n/ac Wi-Fi radio module with
integrated Bluetooth BR/EDR/Low Energy (LE), specifically designed for highly integrated and
cost-effective applications. The simultaneous and independent operation of the two standards
enables very high data rates (802.11ac) and low-power operation (Bluetooth LE). Integrated
power management, a fast dual-core CPU, 802.11i security standard support, and high-speed
data interfaces deliver the performance for the speed, reliability, and quality requirements of
next generation products. Tx power calibration data, Wi-Fi, and Bluetooth system parameters
are pre-stored on the One Time Programmable memory of the PAN9028 during production at
Panasonic. This simplifies passing the certification process for PAN9028 customers.
Furthermore, the module reduces design, test, and calibration effort resulting in reduced time-
to-market compared to discrete solutions.
Integrating Wi-Fi and Bluetooth wireless connectivity allows high throughput applications for
industrial devices and appliances. The combination of Wi-Fi and Bluetooth provides the highest
flexibility for connectivity.
This Module Integration Guide applies to the PAN9028 WLAN/Bluetooth combo module and the
PAN9028 mSDIO Adapter development platform.
This document is structured into two main parts:
•
The hardware integration of the PAN9028 module.
•
The PAN9028 mSDIO Adapter as an example for the module integration.
For related documents please refer to  11.2 Product Information.

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PAN9028 Wi-Fi/Bluetooth Module 3 PAN9028 Module
Module Integration Guide Rev. 1.0 Page 10 of 45
3 PAN9028 Module
3.1 Block Diagram
For Module Varia t ENWF940[x]A1EF:
For Module Varia t ENWF940[x]A2EF:
Chip
Antenna
SPDT
88W8987
Radio SoC
UART
GPIOs
PDN
VDD +3.3 V
BPF
RF Pad
PAN9028
Wi-Fi a d Bluetoothâ Radio Module
IEEE 802.11 a/b/g/ /ac
Bluetooth 5 (BR, Low E ergy, a d EDR)
DPX
SPDT
PCM Interface
SDIO Interface
Sleep Clock
RF SW
PMIC
88PG823
Crystal
26 M z
VIO/VIOSD
COEX
Chip
Antenna
SPDT
88W8987
Radio SoC
UART
GPIOs
PDN
V
DD
+1.1 V
BPF
RF Pad
PAN9028
Wi-Fi a d Bluetooth
â
Radio Module
IEEE 802.11 a/b/g/ /ac
Bluetooth 5 (BR, Low E ergy, a d EDR)
DPXSPDT
PCM Interface
SDIO Interface
Sleep Clock
RF SW
Crystal
26 M z
V
IO
/V
IOSD
COEX
V
DD
+1.8 V
V
DD
+2.2 V
V
DD
+3.3 V

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PAN9028 Wi-Fi/Bluetooth Module 3 PAN9028 Module
Module Integration Guide Rev. 1.0 Page 11 of 45
3.2 La d Patter
For Module Varia t ENWF940[x]A1EF:
Top View
For Module Varia t ENWF940[x]A2EF:
Top View
1 2 3 4 5 6 7 8 9 10 11 12
G
VOUT
2.2V
VOUT
2.2V VIO VOUT 1.8V SD_CLK SD_CM D SD_DAT0 SD_DAT1 SD_DAT2 SD_DAT3 GND RF
G
F
GND VDD 3.3V VDD 3.3V VIO_SD GPIO GPIO GPIO GPIO GPIO GPIO GND GND
F
E
GPIO SLEEP
CLOCK IN GND GND
E
D
PG2 CONFIG
OST[0] GND GND
D
C
PGLDO
CONFIG
AUTO REF
DET
GND GND
C
B
PG1 GPIO DNC GPIO PDN UART UART UART GPIO GPIO RF_SW1 GND
B
A
GND EN PMIC VOUT
1.1 V GPIO DNC UART UART UART DNC GPIO RF_SW2 GND
A
1 2 3 4 5 6 7 8 9 10 11 12
EP 1 EP 2 EP 1 EP 2
1 2 3 4 5 6 7 8 9 10 11 12
G
VDD
2.2V
VDD
2.2V VIO VDD 1.8V SD_CLK SD_CM D SD_DAT0 SD_DAT1 SD_DAT2 SD_DAT3 GND RF
G
F
GND VDD
3.3V
VDD
3.3V VIO_SD GPIO GPIO GPIO GPIO GPIO GPIO GND GND
F
E
GPIO SLEEP
CLOCK IN GND GND
E
D
DNC CONFIG
OST[0] GND GND
D
C
DNC
CONFIG
AUTO REF
DET
GND GND
C
B
DNC GPIO DNC GPIO PDN UART UART UART GPIO GPIO RF_SW1 GND
B
A
GND DNC VDD
1.1 V GPIO DNC UART UART UART DNC GPIO RF_SW2 GND
A
1 2 3 4 5 6 7 8 9 10 11 12
EP 1 EP 2 EP 1 EP 2

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PAN9028 Wi-Fi/Bluetooth Module 3 PAN9028 Module
Module Integration Guide Rev. 1.0 Page 12 of 45
3.3 Footpri t
The outer dimensions have a tolerance of ±0.35 mm.

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PAN9028 Wi-Fi/Bluetooth Module 3 PAN9028 Module
Module Integration Guide Rev. 1.0 Page 13 of 45
3.4 Solder Mask
It is recommended to use the following layout for the soldering mask to reduce voids on the
thermal pads. Use the dimensions:
 The Resist Mask should be 50 µm bigger than the pad size ( 3.3 Footprint).
 The Solder Mask should be 50 µm smaller than the pad size ( 3.3 Footprint); they are
separated in two semi circles with 300 µm distance and a shifting about 150 µm.
Layout
3.5 Placeme t
A te a “Keep out Area”
Do not place any ground plane under the marked restricted antenna area in
any layer! This would be affecting the performance of the chip antenna in a
critical manner.
Impact of Placeme t o the A te a Radiatio Patter
The placement of the module, surrounding material, and customer
components has an impact on the radiation pattern of the antenna.
The recommendation for the ground plane is based on a FR4 4-Layer PCB.
The following requirements must be met:
 Keep this product away from heat. eat is the major cause of decreasing the life of these
products.
 Keep this product away from other high frequency circuits.

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PAN9028 Wi-Fi/Bluetooth Module 3 PAN9028 Module
Module Integration Guide Rev. 1.0 Page 14 of 45
The antenna requires a cutout area of 8 mm x 5 mm under the PAN9028 module. This “Keep
out Area” shall be located in every layer under the module antenna. Note for example the “Keep
out Area” in all four layers of the PAN9028 evaluation board.
It is recommended to verify the perfect position of the module in the target application before
fixing the design.
A te a Placeme t Recomme datio
Use a ground plane in the area surrounding the module wherever possible.
All dimensions are in millimeters.
It is recommended to place the module:
•
In the center (horizontal) of mother PCB.
•
At the edge (horizontal) of mother PCB.
Top View
Min. 15.00
8.00
„Keep out Area“
Min. 15.00 12.00
1.00
3.00
PAN9028


PAN9028 Wi-Fi/Bluetooth Module 4 Power Supply
Module Integration Guide Rev. 1.0 Page 15 of 45
4 Power Supply
The following conditions must be met:
 The supply voltage must be free of AC ripple voltage (for example from a battery or a low
noise regulator output). For noisy supply voltages, provide a decoupling circuit (for example
a ferrite in series connection and a bypass capacitor to ground of at least 47 µF directly at
the module).
 The supply voltage should not be exceedingly high or reversed. It should not carry noise
and/or spikes.
ENWF940[x]A1EF: The V
OUT1V1
, V
OUT1V8
and V
OUT2V2
power supply pins are only
for internal purpose. Do not use them to power external curcuits.
Take care to follow correct power-up sequence of module which is specified in
PAN9028 product specification.

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PAN9028 Wi-Fi/Bluetooth Module 5 RF Path
Module Integration Guide Rev. 1.0 Page 16 of 45
5 RF Path
5.1 Exter al A te a
A te a War i g
The PAN9028 is tested with a standard U.FL connector and with the antenna
listed in the regulatory and certification chapter of the “PAN9028 Product
Specification”. When integrated into the OEM’s product, these fixed antennas
require installation preventing end users from replacing them with non-
approved antennas.
Any antenna not in the regulatory and certification chapter of the “PAN9028
Product Specification” must be tested to comply with FCC Section 15.203 for
unique antenna connectors and with Section 15.247 for emissions.
The PAN9028 module has a 50 ohm RF pin (SMD pad). Connect an external antenna directly or
via a connector (e.g. U.FL) with RF trace to this RF pin. This RF trace shall be matched to
50 ohm  5.2 RF Trace.
5.2 RF Trace
Ensure that the RF trace impedance is nearly 50 ohm. It is recommended to use a Coplanar
Waveguide with Ground (CPWG) design. The impedance is related to the trace width, the
distances of the trace to the ground layers and the material of the PCB.
The following design recommendation shall be met:
 Trace impedance of 50 ohm
 Trace length shall not exceed 2 cm
 Via fence around the trace
 Crossing no other lines (power supply, interfaces or clock traces)

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PAN9028 Wi-Fi/Bluetooth Module 5 RF Path
Module Integration Guide Rev. 1.0 Page 17 of 45
Example 1: 50 ohm Copla ar Waveguide with Grou d o mSDIO Adapter
Trace width W = 180 µm
Trace distance to ground S = 150 µm
Substrate thickness = 80 µm
Effective permittivity


= 3.9
Loss tangent
tan

= 0.015
SS
W
H

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PAN9028 Wi-Fi/Bluetooth Module 5 RF Path
Module Integration Guide Rev. 1.0 Page 18 of 45
Example 2: 50 ohm Copla ar Waveguide with Grou d a d Micro Vias
Trace width W = 300 µm
Trace distance to ground S = 300 µm
Substrate thickness = 160 µm
Effective permittivity


= 4.2
Loss tangent
tan

= 0.006


PAN9028 Wi-Fi/Bluetooth Module 6 One-Layer Example for
Module Integration Guide Rev. 1.0 Page 19 of 45
6 O e-Layer Example for Module Varia t
ENWF940[x]A1EF
Fu ctio ality
•
WLAN interface: SDIO with 3.3 V
•
Bluetooth interface: SDIO with 3.3 V
•
On-board antenna
•
No GPIOs connected
•
Reset available

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PAN9028 Wi-Fi/Bluetooth Module 7 mSDIO Adapter
Module Integration Guide Rev. 1.0 Page 20 of 45
7 mSDIO Adapter
7.1 Fu ctio al Blocks
Fu ctio al Block Descriptio I terface
A On-board antenna or bottom pad selection
B U.FL connector X1
C PAN9028 module
D SDIO interface
E Bluetooth data over UART or SDIO
F Bluetooth Interface
G External supply voltage can be connected
7.2 Resistor Jumper Co figuratio
R6 R7 RF-Out
0R n.c. PAN9028 chip antenna
n.c. 0R RF-UFL X1 connector