SKY74963 Skyworks Solutions, SKY74963 Datasheet

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SKY74963

Manufacturer Part Number
SKY74963
Description
RF Transceiver With Power Ramping Controller and Integrated Crystal Oscillator
Manufacturer
Skyworks Solutions
Datasheet

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DataSheet
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
4
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)
U
.com
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
DataSheet4U.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).
1

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SKY74963 Summary of contents

Page 1

... DataSheet U .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 ...

Page 2

... D2 FILTN FILTP D1 Frac-N UHFTUNE UHFCPO VGA1 DCOC DCOC DCOC DCOC DCOC DCOC DataSheet4U.com 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 CP PFD TXCPO TX1800/TX1900 DCS1800/PCS1900 Synthesizer LO Indicates Off-chip ...

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