Datasheet > ACPM-7372-BLK

ACPM-7372-BLK

更新时间： 2022-02-26 12:32:36

品牌	Logo	应用领域
安华高科 - AVAGO		/
页数	文件大小	规格书
16页	1336K
描述
high efficiency at max output power

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数据手册

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ACPM-7372-BLK 数据手册

CoolPAM

Mode control pins

Avago Technologies’ CoolPAM is stage-bypass PA tech-

ꢀmode and ꢀbp are digitally controlled by baseband and

nology which saves more power compared with conven- they control the operating mode of the PA. The operating

tional PA. With this technology, the ACPM-7372 has very

low quiescent current, and eﬃciencies at low and medium

output power ranges are high.

logic table is summarized on the page 2. These pins do

not require constant voltage for interface.

UMTS PA performance comparison

Incorporation of bias circuit

– CoolPAM 4 and CoolPAM 5

The ACPM-7372 has internal bias circuit, which removes

the need for external constant voltage source (�DO). PA

on/oﬀ is controlled by ꢀen. This is digitally control pin.

450

CP5

CP4

400

350

300

250

200

150

100

3-mode power control with two mode control pins

The ACPM-7372 supports three power modes (bypass

power mode/mid power mode/high power mode) with

two mode control pins (ꢀmode and ꢀbp). This control

scheme enables the ACPM-7372 to save power consump-

tion more, which accordingly gives extended talk time.

PD (probability density function) showing distribution

of output power of mobile in real ﬁeld gives motivation

for stage-bypass PA. Output power is less than 16dBm for

most of operating time (during talking), so it is important

to save power consumption at low and medium output

power ranges.

-10

Pout(dBm)

Average current & Talk time

Average current consumed by PA can be calculated by

summing up current at each output power weighted with

probability. So it is expressed with integration of multipli-

cation of current and probability at each output power.

CP5

CP4

Average current = ƒ (PD x Current)dp

Talk time is extended more as average current consump-

tion is lowered.

-10 -8 -6 -4 -2

10 12 14 16

Pout(dBm)

Icc Comparison of CP5 to CP4 (Avago CoolPAM)

The 5 generation of CoolPAM technology, ACPM-7372

can dramatically reduce Icc down to 3mA at bypass mode,

which improves overall talk time and battery usage time

of handset more compared with the CP4.

Figure 1. PDF and Current

1...3 4 567 8 9...16

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