Mindray LBWA1UZ1GC-958 User manual

*内部资料* 本文档中包含的信息涉及深圳迈瑞生物医疗电子股份有限公司秘密，均为内部保密信息，未经许可，不得外发。
Chapter1 Introduction
1.1 composition and function
Wlink provides a solution for converting UART to low-power WiFi.
Wlink runs its own TCP/IP protocol stack, which means lower performance requirements for the host mcu.
Wlink PCBA is shown as follows：
The block diagram of Wlink PCBA is as follows, based on Murata's LBWA1UZ1GC-958 module, whose core
chip is Cypress's CYW43907
VDD
UART
JTAG
GPIO
SPI
RST I-PEX
LBWA1UZ1GC-958
（802.11a/b/g/n Module）LPF
(Match)
Crystal
(32.768kHz)
Flash
（MX25L6433FZ2I-08G）
SDIO
ANT
DIV ANT OUT
DIV ANT CTRL
1.2 application scenario
Wlink PCBA is integrated into the internal motherboard or carrier board of the product by soldering. The

*内部资料* 本文档中包含的信息涉及深圳迈瑞生物医疗电子股份有限公司秘密，均为内部保密信息，未经许可，不得外发。
antenna is connected to the I-pex socket MHF I on the module through a RF cable.
Wlink is suitable for products that do not require high WiFi throughput, or need to achieve WiFi function
isolation, such as pumps, AEDs, defibrillation, etc.

*内部资料* 本文档中包含的信息涉及深圳迈瑞生物医疗电子股份有限公司秘密，均为内部保密信息，未经许可，不得外发。
Chapter2 Product specification
Protocol
Support 802.11a/b/g/n
Modulation
BPSK, QPSK, 16-QAM, 64-QAM
Tx power
Not less than the flowing values when operating at the lowest datarate：
11a, 6Mbps: 11dBm;
11b, 1Mbps: 15dBm,
11g, 6Mbps:11dBm;
11n, MCS0: 10dBm。
sensitivity
Not bigger than the flowing values when operating at the lowest datarate：
11a, 6Mbps: -90dBm，
11b, 1Mbps: -92dBm,
11g, 6Mbps:-90dBm;
11n, MCS0: -90dBm。
ANT port
One Ipex MHF I connector
Communicating port
UART
Power port
3.13V~3.6V
Frequency range
2412MHz~2462MHz
5180MHz~5320MHz，5500MHz~5700MHz，5745MHz~5825MHz
datarate
IEEE 802.11a: 6-54 Mbps
IEEE 802.11b: 1-11 Mbps
IEEE 802.11g: 6-54 Mbps
IEEE 802.11n: MCS0-MCS7，support HT20 and HT40 when at 5Ghz band
security
standards：
OPEN，WPA/WPA2-PSK, WPA/WPA2-Enterprise
EAP method：
EAP-TLS,PEAP-MsCHAPv2，EAP-TTLS
encryption：
TKIP and AES
Operation temperature
0~70℃
Contain FCC ID
ZLZ-WLINK

*内部资料* 本文档中包含的信息涉及深圳迈瑞生物医疗电子股份有限公司秘密，均为内部保密信息，未经许可，不得外发。
Chapter3 Product interface
1.1 pin definition
SDIO，SPI ports are reserved for future use。
Pin #
Pin name
type
description
1
GND
A
GND
2
UART0_TXD_OUT
O
Uart out
3
UART0_RXD_IN
I
Uart in
4
VDD
Power
power, typically 3.3VDC
5
JTAG_RESET_N
I
JTAG reset
6
GPIO_2_JTAG_TCK
I
JTAG clock
7
GPIO_4_JTAG_TDI
I
JTAG TDI
8
GPIO_5_JTAG_TDO
O
JTAG TDO
9
VBAT
Power
power, typically 3.3VDC
10
GPIO_3_JTAG_TMS
I
JTAG TMS
11
GPIO_6_JTAG_TRST_L
I
JTAG TRST
12
HIB_REG_ON_IN
I
Reset in
13
VDD
Power
power, typically 3.3VDC
14
GND
A
GND
15
GND
A
GND
16
RF_SW_CTRL_8_UART2_RX
I
Dubug uart input
17
RF_SW_CTRL_9_HIB_LPO_SEL_UART2_TX
O
Dubug uart output
18
SDIO_DATA1
I/O
SDIO DATA
19
SDIO_DATA0
I/O
SDIO DATA
20
SDIO_CMD
I/O
SDIO CMD
21
SDIO_CLK
I
SDIO CLK
22
GND
A
GND
23
GND
A
GND
24
WAKE_OUT
O
WAKE UP OUTPUT
25
WAKE_IN
I
WAKE UP IN
26
SDIO_DATA2
I/O
SDIO DATA
27
SDIO_DATA3
I/O
SDIO DATA
28
UART0_RTS_OUT
O
reserved
29
UART0_CTS_IN
I
reserved
30
VDD
Power
power, typically 3.3VDC
31
EXT_SLEEP_CLK
clk IN
power, typically 3.3VDC
32
SPI_0_CS
I
reserved
33
SPI_0_MOSI
I
reserved

*内部资料* 本文档中包含的信息涉及深圳迈瑞生物医疗电子股份有限公司秘密，均为内部保密信息，未经许可，不得外发。
34
SPI_0_MISO
O
reserved
35
SPI_0_CLK
I
reserved
36
GND
A
GND
37
RF_SW_CTRL_4
O
reserved
38
RF_SW_CTRL_5
O
reserved
39
GND
A
GND
40
ANT
A
reserved
41
GND
A
GND
Pins that are not used can be left NC.
1.2 timing
The power-on sequence requirements for Wlink modules are as follows：
3.3V IN（VBAT）
3.3V IN（VDDIO）
The serial communication timing requirements are as follows：
WKUP
TXRDY
TXD
RXD
Sleep
WKUP and TXD are the output signals of the upper computer. After WKUP changes from high to low,
TXRDY signal must respond to the low level of T2 length within T1 time. After that, the host computer sends
serial port commands. Before Wifi module sends serial data, it needs to drive TXRDY signal to low.
1.3 power
Wlink works with single DC power supply, the power supply voltage range is 3.13V~3.6V.
When the supply voltage is 3.3V, the peak current is typically 250mAand the maximum is 399mA.

*内部资料* 本文档中包含的信息涉及深圳迈瑞生物医疗电子股份有限公司秘密，均为内部保密信息，未经许可，不得外发。

*内部资料* 本文档中包含的信息涉及深圳迈瑞生物医疗电子股份有限公司秘密，均为内部保密信息，未经许可，不得外发。
Chapter4 Requirement and notes
1.1 Schematic and layout design guide
The schematic diagram of Wlink is as follows:
Precautions for carrier board layout:
1，The right half of Wlink is an analog circuit with antenna interface and diversity antenna circuit, as
shown in the figure below. Avoid running high-speed clock lines on the carrier board near the Wlink
analog circuit. Grounding is recommended.
2，There are test points on the bottom of Wlink, and the surface of the carrier board should avoid the risk
of short circuit caused by copper opening.。

*内部资料* 本文档中包含的信息涉及深圳迈瑞生物医疗电子股份有限公司秘密，均为内部保密信息，未经许可，不得外发。
1.2 manufacturring requirements
Wlink is a sub-part of the carrier board PCBA, and the welding temperature curve requirements are as follows:
Recommended Reflow ProfileTemperature/°C
Preheat Heating Cooling Time（Sec）
1.3 mechanical constraints
The length and width is 28mm*14.3mm.
The maximum height without socket is 2.82mm.
The maximum height with socket is 3.5mm.
1.4 other notes：
1. When the machine is integrated, it is necessary to prevent Wlink from receiving 2.4G/5G electromagnetic
interference (such as magnetic couple devices, CPU, DDR, 2.4G wifi antenna, etc.) from other part of the
machine, otherwise it will reduce the radio frequency sensitivity and reduce the communication distance.
2. Wlink is a radio frequency module. System integration needs to consider avoiding radio frequency signals

*内部资料* 本文档中包含的信息涉及深圳迈瑞生物医疗电子股份有限公司秘密，均为内部保密信息，未经许可，不得外发。
from interfering with other sensitive circuits.
3. The ESD protection capability of the radio frequency module, especially the antenna port, is weak. ESD
protection is required during transportation and use.
4. The ESD protection capability of the WiFI module itself is relatively weak. If the WiFi antenna needs to be
led out of the machine, ESD protection measures need to be added to the lead-out path.
1.5 warning
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
NOTE 1: Any changes or modifications to this unit not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.
This equipment complies with the FCC RF radiation exposure limits set forth for an uncontrolled
environment. This equipment should be installed and operated with a minimum distance of
20cm between the radiator and any part of your body.
2.2 List of applicable FCC rules
FCC Part 15.247 and FCC Part 15E
2.3 Specific operational use conditions
This product is a Single-modular transmitter policy independent of any host. Not applicable.
2.4 Limited module procedures
This product is a Single-modular transmitter. It is not a limited module. Not applicable.
2.5 Trace antenna designs
This product has an External Antenna. Not applicable.

*内部资料* 本文档中包含的信息涉及深圳迈瑞生物医疗电子股份有限公司秘密，均为内部保密信息，未经许可，不得外发。
2.6 RF exposure considerations
This equipment complies with the FCC RF radiation exposure limits set forth for an uncontrolled
environment. This equipment should be installed and operated with a minimum distance of
20cm between the radiator and any part of your body.
2.7 Antennas
This product has an External Antenna. As follow,
No.
Antenna Type
Gain
Impedance
1
FPC dipole
2.4G: 2.79dBi;
5G: 3.38dBi
50ohm
2
FPC dipole
2.4G:2.79dBi
5G: 3.38dBi
50ohm
3
FPC dipole
2.4G:2.6dBi
5G: 3.1dBi
50ohm
4
Copper pipe dipole
2.4G:1.32dBi
5G: 2.75dBi
50ohm
5
Copper pipe dipole
2.4G:1.87dBi
5G: 0.94dBi
50ohm
6
FPC PIFA
2.4G:1dBi
5G: 1dBi
50ohm
7
FPC PIFA
2.4G:1.56dBi
5G: 4.17dBi
50ohm
2.8 Label and compliance information
Remind end customers to add "Contain FCC ID: ZLZ-WLINK"
2.9 Information on test modes and additional testing requirements
Contact SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD. will provide stand-alone
modular transmitter test mode. Additional testing and certification may be necessary when
multiple modules are used in a host.