ACPM-7372-BLK Avago Technologies US Inc., ACPM-7372-BLK Datasheet - Page 6

• Manufacturer Part Number: ACPM-7372-BLK
• Description: 4x4mm UMTS PA Module For Band 8
• Manufacturer: Avago Technologies US Inc.
• Type: Power Amplifierr

Specifications of ACPM-7372-BLK

• Current - Supply: 560mA
• Frequency: 880MHz ~ 915MHz
• Gain: 27dB
• Package / Case: 10-SMD Module
• Rf Type: W-CDMA
• Voltage - Supply: 3.2V ~ 4.2V
• Number Of Channels: 1
• Frequency (max): 915MHz
• Power Supply Requirement: Dual
• Single Supply Voltage (min): Not RequiredV
• Single Supply Voltage (typ): Not RequiredV
• Single Supply Voltage (max): Not RequiredV
• Package Type: SMD
• Dual Supply Voltage (typ): 3.4V
• Dual Supply Voltage (max): 4.2V
• Operating Temperature Classification: Commercial
• Operating Temp Range: -20C to 85C
• Pin Count: 10
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Noise Figure: -
• P1db: -
• Test Frequency: -
• Lead Free Status / Rohs Status: Compliant

CoolPAM
Avago Technologies’ CoolPAM is stage-bypass PA tech-
nology which saves more power compared with conven-
tional PA. With this technology, the ACPM-7372 has very
low quiescent current, and efficiencies at low and medium
output power ranges are high.
Incorporation of bias circuit
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.
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.
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.
Talk time is extended more as average current consump-
tion is lowered.
Figure 1. PDF and Current
6
is lowered.
Average current = ƒ (PD�� x Current)dp
power control with two mode control pins
ower control with two mode control pins
extended more as average current consump-
control with two mode control pins
ontrol with two mode control pins
more as average current consump-
consump-
Mode control pins
�mode and �bp are digitally controlled by baseband and
they control the operating mode of the PA. The operating
logic table is summarized on the page 2. These pins do
not require constant voltage for interface. .
UMTS PA performance comparison
– CoolPAM 4 and CoolPAM 5
Icc Comparison of CP5 to CP4 (Avago CoolPAM)
The 5
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.
450
400
350
300
250
200
150
100
70
65
60
55
50
45
40
35
30
25
20
15
10
50
5
0
0
-10 -8 -6 -4 -2
-10
th
generation of CoolPAM technology, ACPM-7372
CP5
CP4
bp are digitally controlled by baseband and
pins ins
are digitally controlled by baseband and
are digitally controlled by baseband and
0
0
Pout(dBm)
Pout(dBm)
2
10
4
6
CP5
CP4
8
20
10 12 14 16
30
do