SKY77742-21

SkyHi™ Broadband Power Amplifier Module for WCDMA / HSDPA / HSUPA / HSPA+ (Bands I, II, IV, V, VIII) CDMA (Bands I, II, V)

Please note: SKY77742-21 is being discontinued and is not recommended for new designs.

The SKY77742-21 SkyHi™ Power Amplifier Module (PAM) is a fully matched, 16-pad, surface mount module developed for Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access (CDMA) and Evolution-Data Optimized (EVDO Rev. B). This small and efficient module packs full coverage for WCDMA Bands I, II, IV, V, and VIII into a single compact package. The SKY77742-21 meets stringent spectral linearity requirements for WCDMA transmission up to maximum power output. The PAM also meets stringent spectral linearity requirements for CDMA, HSDPA, HSUPA, HSPA+, and CDMA2000 data transmission with high power added efficiency. A directional coupler integrated into the module eliminates the need for any external coupler.

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. Output match into a 50 load is realized off-chip within the module package to optimize efficiency and power performance.

The SKY77742-21 PAM is manufactured with Skyworks’ InGaP GaAs Heterojunction Bipolar Transistor (HBT) process that provides for all positive voltage DC supply operation while maintaining high efficiency and good linearity. No VREF voltage is required. Power down is accomplished by setting the voltage on VENHB and VENLB to zero volts. No external supply side switch is needed as typical “off” leakage is a few microamperes with full primary voltage supplied from the battery.

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Specifications

Product LifecycleLast Time Buy

Frequency (MHz)
1920-1980
1850-1910
1710-1785
824-849
880-915

DescriptionBroadband Power Amplifier Module for WCDMA / HSDPA / HSUPA / HSPA+ (Bands I, II, IV, V, VIII) CDMA (Bands I, II, V)
WCDMA B1
WCDMA B2
WCDMA B4
WCDMA B5
WCDMA B8

PackageMCM, 16-pad

Package (mm)3.0 x 4.0 x 0.9

Features

Low voltage positive bias supply: VBATT 3.0 V to 4.5 V
Good linearity
High efficiency
Large dynamic range
Small, low profile package: 3 mm x 4 mm x 0.9 mm, 16-pad configuration
Power down control
InGaP
Supports low collector voltage VCC operation
Digital enable
No VREF required
CMOS compatible control signals
Integrated directional coupler
BiHEMT process

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