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PDF ACPM-7357 Data sheet ( Hoja de datos )
| Número de pieza | ACPM-7357 | |
| Descripción | Power Amplifier Module | |
| Fabricantes | AVAGO | |
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ACPM-7357
UMTS Dual-Band 4x5mm Power Amplifier Module
(Band1/Band8)
Data Sheet
Description
The ACPM-7357 is a dual-band PAM (Power Amplifier
Module) designed for UMTS Band1 and Band8. The ACPM-
7357 meets stringent UMTS linearity requirements. The
4mmx5mm form factor 14-pin surface mount package
is self contained, incorporating 50ohm input and output
matching networks
The ACPM-7357 features 5th generation of CoolPAM
circuit technology which supports 3 modes – bypass, mid
and high power modes. The CoolPAM is stage bypass
technology which enables power amplifier to lower
power consumption. Active bypass feature is added to
5th generation to enhance power added efficiency at low
output range and this technology extends talk time of
mobiles more by further saving power amplifier’s current
consumption.
The power amplifier is manufactured on an advanced
InGaP HBT (hetero-junction Bipolar Transistor) MMIC
(microwave monolithic integrated circuit) technology
offering state-of-the-art reliability, temperature stability
and ruggedness
The Module is housed in a cost effective, small and thin
4x5mm package.
Block Diagram
Features
x Dual-Band PA (Band1 and Band8)
x Small Size (4x5mm)
x Thin Package (1.0mm typ)
x Excellent Linearity
x 3-mode power control
Bypass / Mid Power Mode / High Power Mode
x High Efficiency at max output power
x 14-pin surface mounting package
x Internal 50ohm matching networks for both RF input
and output
x Lead-free, RoHS compliant, Green
Applications
x UMTS Band1 and Band8
Ordering Information
Part Number
ACPM-7357-TR1
ACPM-7357-BLK
Number of
Devices
1000
100
Container
178mm (7”) Tape/Reel
Bulk
Bypass
Circuit
Impedance
Transformer
RFin_LB
Input Match &
Power Divider
Output
Match
RFout_LB
Vcc1
Ven_LB
Ven_HB
Bias Circuit & Control Logic
Vcc2
Vmode
Vbp
RFin_HB
Input Match &
Power Divider
Output
Match
RFout_HB
Bypass
Circuit
Impedance
Transformer
Free Datasheet http://www.datasheet4u.com/
1 page  
HSDPA Signal configuration used:
3GPP TS 34.121-1
Annex C (normative e): Measurement channels
C.10.1 UL reference measurement channel for HSDPA tests
Table C.10.1.4: E values for transmitter characteristics tests with HS-DPCCH
Sub-test 2 (CM=1.0, MPR=0.0)
HSUPA signal configuration used:
3GPP TS 34.121-1
Annex C (normative): Measurement channels
C.11.1 UL reference measurement channel for E-DCH tests
Table C.11.1.3: E values for transmitter characteristics tests with HS-DPCCH and E-DCH
Sub-test 1 (CM=1.0, MPR=0.0)
5
Free Datasheet http://www.datasheet4u.com/
5 Page 
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.
TX filter
RF In Low
C8
C1
PA_R0
PA_R1
PA_ON_Low Band
PA_ON _High Band
C4
C10
Coupler
C2 C11
ACPM-7357
L1
RF Out Low
Low IN
Vmode
Vbp
Vcc1
Ven_L
Ven_H
High IN
Low OUT
GND
GND
Vcc2
GND
GND
High OUT
output matching circuit
RF In High
C3
TX filter
C9
C5
C7
C6
C12
Coupler
C13
L2
RF Out High
Figure 3. Peripheral Circuits
VBATT
PCB layout and part placement on phone board
2
4
Figure 4. PCB guideline on phone board
1
Via hole
3
Notes:
1. To prevent voltage drop, make the bias lines as wide as
possible (Pink line).
2. Use many via holes to fence off PA RF input and output
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)
3. Use via holes to connect outer ground plates to internal
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).
4. PA which has a ground slug requires many via holes which
go through all the layers (Red square).
11
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet ACPM-7357.PDF ] | |
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