www.DataSheet4U.com
PRODUCT SUMMARY
SKY77175-13 Dual-Band PA Module for WCDMA / HSDPA
Band II (1850–1910 MHz) and Band V (824–849 MHz)
APPLICATIONS
• WCDMA handsets
• HSDPA handsets
• Personal Communication
• Wireless Local Loop (WLL)
Features
• Low voltage positive bias
• No V
• Supports low collector
• Good linearity
• High efficiency
• Large dynamic range
• 14-pad package
• Low profile package
• Separate digital VENABLE
• Analog bias current control
• InGaP
Services (PCS)
supply: 3.1 V to 4.6 V
voltage operation
- 3 mm x 6 mm x 1.1 mm
pads for PCS and Cellular
modes of operation.
using VCONT pad.
REF
required
200893A • Skyworks Proprietary and Confidential information. • Products and product information are subject to change without notice. • April 18, 2008
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
The SKY77175-13 Power Amplifier Module (PAM) is a fully matched, 14-pad, surface mount module
developed for Wideband Code Division Multiple Access (WCDMA) applications. This small and efficient
module packs full WCDMA Band II and Band V coverage into a single compact package. The
SKY77175-13 meets the stringent spectral linearity requirements of WCDMA transmission, with high
power added efficiency for power output to 29 dBm (Band II) and 29 dBm (Band V). A low current
analog pad (V
Gallium Arsenide (GaAs) Microwave Monolithic Integrated Circuits (MMIC) contain all active RF
circuitry as well as input and interstage matching circuits. Output match is realized off-chip within the
module package to optimize efficiency and power performance into a 50 Ω load. The devices are
manufactured with Skyworks’ 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 SKY77175-13 is supplied directly from a three-cell Ni-Cad, a single-cell Li-Ion, or other
suitable batteries with outputs in the 3.1 to 4.6 volt range. Power down is accomplished by setting a
logic low level on the VEN pad. No external supply side switch is needed as typical “off” leakage is 15
microamperes with full primary voltage supplied from the battery.
Board real estate is reduced through simplified interface to the module: VCC, VCONT bias lines are
shared, and VREF is generated internally on the module.
VEN_BAND_V
VEN_BAND_II
IN_BAND_V
IN_BAND_II
VCONT
VBIAS
VCC1
VCC2
CONT
) is provided to improve efficiency for the low RF power range of operation.
MMIC
MATCH
MATCH
INPUT
INPUT
DA
DA
BIAS and GAIN CONTROL
Figure 1. Functional Block Diagram
INTER-STAGE
INTER-STAGE
MATCH
MATCH
PA
PA
MODULE
OUTPUT
OUTPUT
MATCH
MATCH
OUT_BAND_II
OUT_BAND_V
200446_001
1
