SKY77432 Multi-Mode, Multi-Band Power Amplifier Module for Next Generation GGE and HSPA Handsets

SKYWORKS SKY77432 is a true multi-mode, multi-band Power Amplifier Module (PAM). The device is intended to support 2.5G and 3G handsets and operates efficiently in GSM, EGPRS, EDGE and WCDMA modes. The SKY77432 consists of separate high-band and low-band GaAs HBT PA blocks, with matching circuitry for 100 Ω differential input and 50 Ω single-ended output impedances. A custom CMOS integrated circuit provides mode-specific bias to the GaAs PA die based on the control logic shown in Table 1. The module supports a direct power control. Power control and GSM power ramps are controlled by the Vcc supply only. The amplifier has two modes: Linear mode used for WCDMA and EDGE transmission, and high efficiency mode for GSM–GMSK transmission. Mode is controlled by the logic level control named Mode. The operating frequency band is selected with the logic level control Band. Bias and control circuits are supplied from VREG and VBAT voltages. The PA is put in to sleep mode by setting Ibias to 0 μA. 2.5G: The SKY77432 supports the GSM850, EGSM900, DCS1800, and PCS1900 bands. The device also supports 2.5G Class 12 Enhanced General Packet Radio Service (EGPRS) multi-slot operation and EDGE linear modulation. 3G: This Load Insensitive Power Amplifier (LIPA®) helps support WCDMA, High-Speed Downlink Packet Access (HSDPA), and High-Speed Uplink Packet Access (HSUPA) modulation at a high antenna Voltage Standing-Wave Ratio (VSWR). This functionality covers multiple bands for 3GPP including bands I, II, III, IV, V and VIII.

技术特性

Load Insensitive Power Amplifier(LIPA®) balance architecture for all modes
True multi-mode architecture:common GSM and WCDMA paths
4.6 V Buck-Boost DC/DC converter compatibility/power-control 2.5G features:
EGPRS Class 12 multi-slot operation
Linear PA with bias optimization for efficiency/linearity trade-off in 8 PSK mode
3G features:
WCDMA mode supports output power and bandwidth for bands I, II, III, IV, V, and VIII
Linear PA with bias optimization and Buck DC/DC converter compatibility to optimize for best efficiency/linearity trade-off
Small, low profile package
- 6 mm x 8 mm x 1.1 mm
- 30-pad configuration
MSL3 260 °C per JEDEC J-STD-020 SMT package

订购信息 Ordering Information

SKY77432

应用领域 APPLICATION

Quad-band cellular handsets:
- Class 4 GSM850/EGSM900
- Class 1 DCS1800/PCS1900
- Class E2 GSM850/EGSM900
- Class 12 multi-slot EGPRS
Multi-band 3G handsets
- WCDMA/HSDPA/HSUPAmodulated handsets for bands I, II, III, IV, V, VIII

功能框图 Functional Block Diagram

应用技术支持与电子电路设计开发资源下载	版本信息	大小
SKY77432 数据资料DataSheet下载:pdf	Rev.V2	2 页