Technical Support .....................................................
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Document Number: 002-20412 Rev. *I
Page 2 of 15
EZ-PD™ CMG1 Datasheet
Pinout
Table 1. 9-Ball CSP Pin Description
9-Ball CSP
A1
A2
A3
B1
B2
B3
C1
C2
C3
Pin Name
CC
VCONN2
DNU
[1]
VCONN1
VSS
O-GND
[2]
VCCD
O-GND
[2]
O-GND
[2]
Description
Communication Channel (VBUS short protected)/IEC
VCONN2 supply with R
A
termination (2.7 V to 5.5 V) (VBUS Short protected)/IEC
Do not use
[1]
VCONN1 supply with R
A
termination (2.7 V to 5.5 V) (VBUS Short protected)/IEC
Ground pin. Mandatory to connect to system GND
Optional GND pin. This pin can be connected to the system GND for better board layout
routability.
1.8-V Core Voltage Out. Connect to 1-µF capacitor
Optional GND pin. This pin can be connected to system GND for better board layout
routability.
Optional GND pin. This pin can be connected to system GND for better board layout
routability.
Figure 1. Pinout of 9-WLCSP Bottom (Balls Up) View
3
2
1
A
DNU
VCONN2
CC
O-GND
VSS
VCONN1
B
O-GND
O-GND
VCCD
C
Notes
1. Keep pin A3 floating for all passive EMCA applications. See
Figure 4
and
Figure 5
for more details.
2. Any of the optional GND pins B3, C2, and C3 can be connected to system GND for better board layout routability. If connected to GND, ensure that the selected
pin/s are shorted with the VSS pin (B2) of the CMG1 device in their board layout. If users are not planning to connect these optional GND pins to system GND, then
it is mandatory to leave them unconnected in their board designs.
Document Number: 002-20412 Rev. *I
Page 3 of 15
EZ-PD™ CMG1 Datasheet
Power
Figure 2
shows an overview of the CMG1 power system requirement. CMG1 operates from two possible external supply sources,
VCONN1 and VCONN2. The VCONN supplies support operation over 2.7 V–5.5 V. CMG1 has two different power modes: Active and
Sleep, transitions between which are managed by the Power System. The VCCD pin, the output of the core regulator (1.8 V), is
brought out for connecting a 1-µF capacitor for regulator stability only. This pin is not supported as a power supply.
空分复用 (SDM) MIMO 处理可显著提高频谱效率，进而大幅增加无线通信系统的容量。空分复用 MIMO 通信系统作为一种能够大幅提升无线系统容量和连接可靠性的手段，近来吸引了人们的广泛关注。 MIMO 无线系统最佳硬判决检测方式是最大似然 (ML) 检测器。ML 检测因为比特误码率 (BER)性能出众，非常受欢迎。不过，直接实施的复杂性会随着天线和调制方案的增加呈指数级增强，使...[详细]
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