ACPM-7357-TR1 Avago Technologies US Inc., ACPM-7357-TR1 Datasheet - Page 11

• Manufacturer Part Number: ACPM-7357-TR1
• Description: IC PA MOD UMTS BAND1/8 14-SMD
• Manufacturer: Avago Technologies US Inc.
• Type: Power Amplifierr

Specifications of ACPM-7357-TR1

• Package / Case: 14-SMD Module
• Current - Supply: 400mA
• Frequency: 890MHz ~ 915MHz, 1.92GHz ~ 1.98GHz
• Gain: 27.3dB
• Rf Type: UMTS
• Test Frequency: 1.92GHz ~ 1.98GHz
• Voltage - Supply: 3.2V ~ 4.2V
• Operating Frequency: 1980 MHz
• Supply Current: 450 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 30 C
• Number Of Channels: 2 Channels
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Noise Figure: -
• P1db: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

4
2
Application on mobile phone board
The figure 3 shows an application example in mobile. C5 and C6 should be placed close to pin4 and pin11. Bypass cap
C1, C2, C3 and C4 should be also placed nearby from pin2, pin3, pin5 and pin6, respectively. The length of post-PA trans-
mission line should be minimized to reduce line loss.
Figure 3. Peripheral Circuits
PCB layout and part placement on phone board
Figure 4. PCB guideline on phone board
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PA_ON_Low Band
PA_ON _High Band
RF In High
RF In Low
TX filter
TX filter
PA_R0
PA_R1
C1
C4
C9
C8
C3
C2
C5
Low IN
Vmode
Vbp
Vcc1
Ven_L
Ven_H
High IN
ACPM-7357
C7
V
BATT
High OUT
Low OUT
Vcc2
GND
GND
GND
GND
C6
output matching circuit
1
3
Via hole
C10
C12
C13
C11
Notes:
1. To prevent voltage drop, make the bias lines as wide as
2. Use many via holes to fence off PA RF input and output
3. Use via holes to connect outer ground plates to internal
4. PA which has a ground slug requires many via holes which
L1
L2
possible (Pink line).
traces for better isolation. Output signal of the PA should
be isolated from input signal and the receive signal. Output
signal should not be fed into PA input. (Green line)
ground planes. They help heat spread out more easily and
accordingly the board temperature can be lowered. They
also help to improve RF stability (Yellow square).
go through all the layers (Red square).
Coupler
Coupler
RF Out High
RF Out Low