SKY74963-32 Skyworks Solutions Inc., SKY74963-32 Datasheet

SKY74963-32

Manufacturer Part Number

SKY74963-32

Description

Manufacturer

Skyworks Solutions Inc.

Datasheet

1.SKY74963-32.pdf (2 pages)

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Company:

Bonase Electronics (HK) Co., Limited

Part Number:

SKY74963-32

Manufacturer:

Microsemi

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1 400

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PRODUCT SUMMARY

SKY74963: RF Transceiver With Power Ramping Controller

and Integrated Crystal Oscillator for Multi-Band GSM, GPRS,

and EDGE Applications

Applications

• GSM850, EGSM900, DCS1800, and PCS1900 handsets

• GPRS handsets and modules

• EDGE downlink support

Features

• Direct down-conversion receiver eliminates the external image

• Three separate LNAs with single-ended inputs

• RF gain range: GSM = 20 dB, DCS = 22 dB, PCS = 20 dB.

• Gain selectable in 2 dB steps

• Integrated receive baseband filters with tunable bandwidth

• Integrated DCOC sequencer

• Reduced filtering requirements with translational loop transmit

• Integrated transmit VCOs

• Wide RF range for multi-band operation

• Integrated PAC loop

• Single integrated, fully programmable fractional-N synthesizer

• Fully integrated wideband UHF VCO

• 26 MHz integrated crystal oscillator with 26 MHz output

• Separate enable lines for power management transmit, receive,

• Supply voltage down to 2.6 V

• Band select and front-end enable states may be exercised on

• Low external component count

• Optional bypass of baseband filtering for use with high dynamic

• Interfaces to low dynamic range ADC

• Meets AM suppression requirements without baseband

• Low power standby mode

• RFLGA™ (56-pin, 8 x 8 mm) Pb-free package (MSL3, 260 °C

reject/IF filters

Baseband gain range = 100 dB

architecture

suitable for multi-slot GPRS operation

(SKY74963-23) or 13 MHz output (SKY74963-32) options

and synthesizer modes

output pins to control external circuitry

range ADCs for current savings

interaction

per JEDEC J-STD-020)

103242B • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • November 29, 2004

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

Description

The SKY74963 RF transceiver is a highly integrated device for

multi-band Global System for Mobile Communications (GSM) or

General Packet Radio Service (GPRS) applications. The device

requires a minimal number of external components to complete a

GSM radio subsystem. The SKY74963 supports GSM850,

EGSM900, DCS1800, and PCS1900 applications. The receiver

also supports Enhanced Data for GSM Evolution (EDGE) downlink

applications.

The receive path implements a direct down-conversion

architecture that eliminates the need for Intermediate Frequency

(IF) components. The SKY74963 consists of three integrated Low

Noise Amplifiers (LNAs), a quadrature demodulator, tunable

receiver baseband filters, and a DC Offset Correction (DCOC)

sequencer.

In the transmit path, the device consists of an In-phase and

Quadrature (I/Q) modulator within a frequency translation loop

designed to perform frequency up-conversion with high output

spectral purity. This loop also contains a phase-frequency

detector, charge pump, mixer, programmable dividers, and high

power transmit Voltage Controlled Oscillators (VCOs) with no

external tank required. With the integrated gain controller (and an

integrator ), the device realizes the Power Amplifier Control (PAC)

functionality when combined with a coupler, a Radio Frequency

(RF) detector, and a Power Amplifier (PA).

The SKY74963 also features an integrated, fully programmable,

sigma-delta fractional-N synthesizer suitable for GPRS multi-slot

operation. Except for the loop filter, the frequency synthesizer

function, including a wideband VCO, is completely on-chip. The

reference frequency for the synthesizer is supplied by the

integrated crystal oscillator circuitry.

A functional block diagram is provided in Figure 1.

Skyworks offers lead (Pb)-free “environmentally

friendly” packaging that is RoHS compliant

(European Parliament for the Restriction of

Hazardous Substances).

Related parts for SKY74963-32

SKY74963-32 Summary of contents

Page 1

... GPRS operation • Fully integrated wideband UHF VCO • 26 MHz integrated crystal oscillator with 26 MHz output (SKY74963-23 MHz output (SKY74963-32) options • Separate enable lines for power management transmit, receive, and synthesizer modes • Supply voltage down to 2.6 V • ...

Page 2

... PFD TXCPO FILTN FILTP D1 Frac-N UHFTUNE UHFCPO VGA1 DCOC DCOC DCOC DCOC Figure 1. SKY74963 RF Transceiver Block Diagram Manufacturing Part Number SKY74963-23 (26 MHz output, Pb-free package) SKY74963-32 (13 MHz output, Pb-free package) GSM850/EGSM900 TX900 TXVCOTUNE TX1800/TX1900 DCS1800/PCS1900 Synthesizer LO Indicates Off-chip C900 Product Revision ...

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