ACPM-5251 View Datasheet(PDF) - Avago Technologies
Part Name
Description
Manufacturer
ACPM-5251
Avago Technologies
ACPM-5251 Datasheet PDF : 19 Pages
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Application on mobile phone board
The figure 1 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
C8
RF In Low
C1
C2
PA_R0
PA_R1
PA_POAN__OLNow_LBoawnBdand
PA_POAN_O_NH_igHhigBhanBdand
C4
RF In High
C3
TX filter
C9
ACPM-5251
Low IN
Vmode
Vbp
Vcc1
Ven_L
Ven_H
High IN
Low OUT
GND
Vcc2
GND
RFOut_Hi
GND
CPL
C5
C6
C7
Output matching circuit
C10
DPX
C11
L1
Coupler
Output matching circuit
C12
DPX
C13
L2
RF Out Low
RF Out High
VBATT
Figure 1. Peripheral Circuits
Recommended Values (L, C)
C1
100pF
C6
1000pF
C11
DNI*
C2
100pF
C7
2.2uF
C12
100pF
C3
100pF
C8
100pF
C13
DNI*
C4
100pF
C9
100pF
L1
DNI*
C5
1000pF
C10
100pF
L2
DNI*
Notes:
1. C1, C2, C3 and C4 should be placed close to each pin to reduce noise coming from the BB chipset as well
as crossing between other power lines.
2. C5 and C6 are used for decoupling high frequency noise and C7 is for decoupling low frequency noise.
They may affect Rx band noise, GPS band noise and spurious characteristics. For better performance, C5
and C6 should be used both Vcc1 and Vcc2 pins.
* Recommended Values are changeable by phone Board impedance.
10
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