IEEE 802.11 b/g/n 2.4GHz 1T1R WiFi with Bluetooth2.1
/3.0/4.0,with SDIO INTERFACE, and HS-UART MIXED INTERFACE
RL-SM02BD (Realtek RTL8723BS)
Combo Module
Version 1.0
http://www.rf-link.net
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PRODUCT DESCRIPTION
SM02BD 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 2mm. It can be easily
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 transmissio n with direct link to external audio codec via BT controller.
The WiFi throughput can go up to 150Mbps in theory by using 1x1 802.11n b/g/n MIMO
technology and Bluetooth can support BT2.1+EDR/BT3.0 and BT4.0.
SM02BD uses Realtek RTL8723BS, a highly integrated WiFi/BT single MODULE based on
advanced COMS process. RTL8723BS integrates whole WiFi/BT function blocks into
a chip, such as SDIO/UART, MAC, BB, AFE, RFE, PA, EEPROM and LDO/SWR, except
fewer passive components remained on
PCB.
PRODUCT FEATURES
Operate at ISM frequency bands (2.4GHz)
GSPI/SDIO for WiFi and UART for Bluetooth
IEEE standards support: IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, IEEE 802.11d, IEEE
802.11e, IEEE 802.11h, IEEE 802.11i
Fully Qualified for Bluetooth 2.1 + EDR specification including both 2Mbps and
3Mbps modulation mode
Fully qualified for Bluetooth 3.0
Fully qualified for Bluetooth 4.0 Dual mode
Full –speed Bluetooth operation with Piconet and Scatternet support.
Enterprise level security which can apply WPA/WPA2 certification for WiFi.
WiFi 1 transmitter and 1 receiver allow data rates supporting up to
150 Mbps downstream and 150 Mbps upstream PHY rates
For WiFi/BT, it uses fixed path for WiFi and BT, which means one antenna assigned
for WiFi and the other is assigned for BT.
Support Bluetooth adaptive power management mechanism
Full-featured software utility for easy configuration and management
RoHS compliance
Low Halogen compliance
http://www.rf-link.net
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Diagram
Temperature Limit Ratings
Parameter Minimum Maximum Units
Storage Temperature
Ambient Operating Temperature
Junction Temperature
-55 +125
0 70
0 125
℃
℃
℃
http://www.rf-link.net
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PRODUCT SPECIFICATIONS
Main chipset :WiFi/BT Single Chip: Realtek RTL8723BS
Shared with GPIO9 This Pin Can Externally Shutdown the RTL8723BS
12 WL_DSI#
WLAN function when BT_DISn is Pulled Low. When this pin deasserted,
SDIO interface will be disabled. This pin can also support the WLAN Ra
dio-off function with host interface remaining connected.
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 3.3V±0.1V
23 NC NC
24 SUSCLK_IN
Shared with GPIO6. External 32K or RTC clock input with 1.8V ~ 3.3V
swing. This clock source is configured by BT and WL FW, respectively.
25 PCM_DOUT PCM Data output
26 PCM_CLK PCM Clock
27 PCM_DIN PCM data input
28 PCM_SYNC PCM sync signal
29 NC NC
30 26MHz_IN
Reference clock input 26MHz Active Crystals
(or if pin10/11 input ,pin30 NC )
31 GND Grond
32 NC NC
33 GND Grond
34 BT_DIS# General Purpose Input/Output Pin
35 NC NC
36 GND Grond
37 NC NC
38 NC NC
39 NC NC
40 NC NC
41 GND Grond
42 UART_OUT HOST Data output
43 UART_IN HOST Data input
44 UART_CTS HOST_CTS
http://www.rf-link.net
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WIFI\BT RF Circuit reference pictures
注:1.以上虚线框的部分需要进行天线匹配,以实际天线匹配的电子元器件参数为准.
2.以上为 RF 走线要做 50 欧姆阻抗,走线不能走 90 度,走线长度不能超过 15mm.
Note: The RF part layout must do 50 Ωimpedance.,can't get the line go 90°,can't get the line longer than 15
mm.
SDIO interface Circuit reference pictures
http://www.rf-link.net
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Recommended Reflow Profile
Referred to IPC/JEDEC standard.
Peak Temperature : <250°C
Number of Times : ≤2 times
ENVIRONMENTAL
Operating
Operating Temperature: 0°C to +70 °C
Relative Humidity: 5-90% (non-condensing)
Storage
Temperature: -40°C to +80°C (non-operating)
Relevant Humidity: 5-95% (non-condensing)
MTBF caculation
Over 150,000hours
http://www.rf-link.net
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Wireless module before the SMT note:
Wifi
模块贴片装机前注意事项:
1.When customers Open stencil must be sure the hole bigger to the
Wireless module plate, please press 1 to 1 and 0.7 mm is widened
to open outward, the thickness of 0.12 mm.
2.Can't get the wifi module bare hands when needs,must we wear
the gloves and static ring.
3.The furnace temperature according to the size of the customer the
mainboard ,generally like to stick on a tablet standard temperature
of 250 + - 5,can do 260 + - 5.
Storage and use Wifi module control should pay attention to
the following matters: