ACPM-5251 View Datasheet(PDF) - Avago Technologies

Part Name

Description

Manufacturer

ACPM-5251

4x5 UMTS Band I & Band V Dual-Band Power Amplifi er Module with Integrated Coupler

Avago Technologies 

ACPM-5251

4x5 UMTS Band I & Band V Dual-Band Power Amplifier Module

with Integrated Coupler

Data Sheet

Description

The ACPM-5251 is the dual-band power amplifier module

with integrated directional coupler designed for UMTS

Band 1 and Band 5 uplink transmission in the mobile

handsets, data cards or dongles supporting WCDMA and/

or HSPA. This product has been designed, tested and

characterized to the stringent spectral linearity and other

requirements of the 3GPP standards including the HSDPA,

HSUPA and HSPA+ UL transmission while keeping the

key emphasis on the excellent PAE over the entire power

range, i.e. the exceptional average power consumption

and talk-time.

The ACPM-5251 contains all of the input and output

matching networks, Vcc decoupling/bypass capacitors,

RF input & output DC blocking capacitors as well as the

daisy-chained directional coupler integrated into the

module substrate PCB, all in a single 14-pad surface-

mount leadless package with 4x5 mm from factor and

1mm thickness.

The integrated directional coupler has a single coupled-

out port and is daisy-chained between the both bands

with internally 50-terminated isolation port. It also has

excellent coupler directivity in both bands allowing small

coupled out power variation or delivered power variation

caused by the load mismatch from the antenna. The

coupler directivity, i.e. the power variation into the mis-

matched load is critical to the TRP performance of the

mobile phones in the real operation as well as the spec.

compliance test.

The ACPM-5251 features CoolPAM-5 circuit technology

which supports 3 power/gain modes – active bypass (low

power), mid power, and high power modes. CoolPAM is

the stage bypass technology that enables very lower

power consumption especially in the low and mid output

power ranges. The active bypass technology added in the

CoolPAM-5 further enhances the PAE at low output power

range together with the exceptionally low quiescent

current. It dramatically saves the average power consump-

tion extending the talk time of the phones and battery life

of the other mobile data devices even much longer.

The ACPM-5251 has integrated on-chip Vref and

on-module bias switch as the one of the key features of

the CoolPAM-5, so the external Vref is not required elimi-

nating the external LDO regulators and switches from the

circuit boards of the mobile devices. It also makes the PA

fully digital-controllable by the Ven pin that simply turns

the PA on and off from the digital control logic inputs

Features

 UMTS Band 1 and Band 5 dual-band PA

 Integrated directional coupler (daisy-chained between

both bands with single coupled out port and internally

terminated isolation port)

 High directivity (small coupled power or delivered

power variation into mismatched load)

 3-mode power/gain control (active bypass, mid power,

and high power modes)

 Excellent PAE in low and mid power ranges.

 3.5mA quiescent current in active bypass (low-power)

mode

 Excellent average power consumption and talk-time

 Spectral linearity supporting HSDPA, HSUPA, and HSPA+

 Internally matched 50Ω RF input & output ports

 Internal RF input & output DC blocking capacitors

 Internal Vcc bypass capacitors

 Internal Vref eliminating external LDO regulators and

switches

 1.8V CMOS compatible control logics (VH=1.35V~3.1V)

 4 x 5 x 1mm 14-pad leadless surface-mount package

 Lead-free, RoHS compliant, Halogen-free, Sb-free, Green

Applications

 UMTS Band 1 and Band 5 Uplink Transmission in

WCDMA / HSDPA / HSUPA / HSPA+ handsets, data cards

and dongles

Ordering Information

Part Number

ACPM-5251-TR1

ACPM-5251-BLK

Number of Devices

1000

100

Container

7” Tape/Reel

Bulk

Description (Cont.)

from the baseband chipsets. All of the digital control input

pins such as the Ven, Vmode and Vbp are fully CMOS

compatible down to the 1.8V logic and all they needs just

several uA of current drawn per pin to be driven.

The CoolPAM series of power amplifiers are manufactured

on an advanced InGaP HBT technology offering excellent

performance, temperature stability, ruggedness, and

reliability.

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