PRODUCT SUMMARY SKY77432 Multi-Mode, Multi-Band Power Amplifier Module for Next Generation GGE and HSPA Handsets Applications Description • Quad-band cellular handsets: - Class 4 GSM850/EGSM900 - Class 1 DCS1800/PCS1900 - Class E2 GSM850/EGSM900 - Class 12 multi-slot EGPRS 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. • Multi-band 3G handsets - WCDMA/HSDPA/HSUPAmodulated handsets for bands I, II, III, IV, V, VIII Features • 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 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. RF input (differential 100 Ω) and output ports (50 Ω) are internally matched to reduce the number of required external components. Extremely low leakage current maximizes handset standby time. The InGaP HBT die, the silicon die, and passive components are mounted on a multi-layer laminate substrate. The assembly is encapsulated with plastic over-mold. The device is mounted in a 30-pad, 6 mm x 8 mm x 1.1 mm Multi Chip Module (MCM), Surface-Mounted Technology (SMT) package, which allows for a highly manufacturable lowcost solution. A block diagram of the SKY77432 is shown in Figure 1. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201485A • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • February 8, 2011 1 PRODUCT SUMMARY SKY77432 MULTI-MODE, MULTI-BAND POWER AMPLIFIER MODULE for NEXT GENERATION GGE AND HSPA HANDSETS Figure 1. SKY77432 Functional Block Diagram Ordering Information Model Number Manufacturing Part Number Product Revision Package Operating Temperature SKY77432 SKY77432-31 -31 MCM 8 mm x 6 mm x 1.1 mm –15 °C to +85 °C Copyright © 2011, Skyworks Solutions Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. 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Additional information, including relevant terms and conditions, posted at www.skyworksinc.com, are incorporated by reference. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201485A • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • February 8, 2011 2