SKY77604-11 Multi-Mode / Multi-Band Power Amplifier Module for Next Generation GGE and HSPA Handsets
SKYWORKS SKY77604-11 is a hybrid multi-mode, multi-band Power Amplifier Module (PAM) that supports 2.5G and 3G handsets, and operates efficiently in GSM, EGPRS, EDGE WCDMA modes. The PAM consists of a GSM800/EGSM900 PA block, a DCS1800/PCS1900 PA block, separate WCDMA blocks for low and high bands, RF input / output ports internally matched to 50 Ω to reduce the number of external components, and a Multi- Function Control (MFC) block. A custom BiCMOS integrated circuit provides the internal MFC interface and operation. Extremely low leakage current maximizes handset standby time. 2.5G: The SKY77604-11 supports the GSM850, EGSM900, DCS1800, and PCS1900 bands. The PAM also supports 2.5G Class 12 Enhanced General Packet Radio Service (EGPRS) multi-slot operation and EDGE linear modulation. 3G: The SKY77604-11 uses Load Insensitive Power Amplifier (LIPA®) circuitry to 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, IV, IX, X, V, VIII.
技术特性
- Hybrid architecture: separate GSM and WCDMA paths
- Separate single-ended GSM and WCDMA inputs/outputs, all ACcoupled
- Multiplexed voltage detector for all modes/bands provided to
transceiver
- Fully programmable serial bus interface
- Final VCC stage for 2.5G/3G can be attached to battery or buck
DC/DC
- Driver stage for 3G can be attached to battery or buck DC/DC
- 2.5G features:
- EGPRS Class 12 multi-slot operation
- Log power detector
- Linear PA with bias optimization for efficiency/linearity tradeoff
in 8-PSK mode
- 3G features:
- WCDMA mode supports output power and bandwidth for
bands I, II, V, and VIII
- Linear detector
- Linear balanced with bias optimization and low/high mode
gain switch for best efficiency/linearity trade-off
|
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/HSUPA-modulated handsets for bands I, II, V, and VIII
订购信息 Ordering Information
功能框图 Functional Block Diagram
|