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CDMA for Japan
DESCRIPTION
The CX77144 Power Amplifier Module (PAM) is a fully matched, 10-pin surface mount
module developed for cellular handset applications utilizing Code Division Multiple Access
(CDMA) and Wireless Local Loop (WLL). This small and efficient power amplifier module
packs a full 887鈥?25 MHz bandwidth coverage into a single compact package. The device
meets the stringent IS95 requirements up 27.5 dBm output power and up to 27 dBm for
CDMA2000. A low current digital pin (VCONT) provides improved efficiency for the low RF
power range of operation.
The single Gallium Arsenide (GaAs) Microwave Monolithic Integrated Circuit (MMIC) contains
all active circuitry in the module. The MMIC contains on-board bias circuitry, as well as input
and interstage matching circuits. The output match is realized off-chip and within the
module package to optimize efficiency and power performance into a 50
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load. This device
is manufactured with Skyworks鈥?GaAs Heterojunction Bipolar Transistor (HBT) process that
provides for all positive voltage DC supply operation while maintaining high efficiency and
good linearity. Primary bias to the CX77144 is supplied directly from a three-cell nickel
cadmium, a single-cell lithium ion, or other suitable battery with an output in the range of
3.2 to 4.2 volts. Power down is accomplished by setting the voltage on the low current
reference pin to zero volts. No external supply side switch is needed as typical 鈥渙ff鈥?leakage
is a few microamperes with full primary voltage supplied from the battery.
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Wireless Local Loop (WLL)
FEATURES
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Low voltage positive bias supply
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(3.2 V to 4.2 V)
Low V
REF
(2.85 V, nominal)
Good linearity
High efficiency
Large dynamic range
10-pin package
4 mm x 4 mm x 1.5 mm
Power down control
Low power鈥搒tate control
InGaP
CDMA2000 / IS95
VREF
(1)
VCC1
(5)
VBIAS
(4)
VCONT
(2)
VCC2
(6)
Driver
Stage Bias
Power
Stage Bias
RF IN (3)
Input
Match
DA
Inter
Stage
Match
PA
Output
Match
(8) RF OUT
MMIC
MODULE
(7, 9, 10)
GND
(7, 9, 10)
GND
103026_001
and
Skyworks Solutions, Inc., Proprietary an d Confidential
103026P5
[781] 376-7000 鈥?FAX [781] 376-3100 鈥?SALES@SKYWORKSINC.COM 鈥?WWW.SKYWORKSINC.COM
APRIL 25, 2003
CX77144相關型號PDF文件下載
-
型號
版本
描述
廠商
下載
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英文版
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英文版
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CX77141: Product Summary|PA Modules for WCDMA Handsets
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英文版
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英文版
CX77144 Product Summary|PA Modules for CDMA Handsets
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Skyworks Solutions Inc. [Power Amplifier Module for CDMA (8...
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