Datasheet > CX74063

CX74063

更新时间： 2024-01-21 20:00:13

品牌	Logo	应用领域
思佳讯 - SKYWORKS		振荡器晶体振荡器射频控制器 GSM
页数	文件大小	规格书
2页	119K
描述
RF Transceiver for Multi-Band GSM/GPRS/EDGE Applications with Integrated Crystal Oscillator and Power Ramping Controller

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CX74063 数据手册

CX74063

RF Transceiver for Multi-Band GSM/GPRS/EDGE Applications with

Integrated Crystal Oscillator and Power Ramping Controller

The CX74063 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 CX74063 supports

GSM850, EGSM900, DCS1800, and PCS1900 applications. The receiver also

supports downlink Enhanced Data-Rate GSM Evolution (EDGE).

Features

• Direct down-conversion receiver eliminates the

external image reject/IF filters

• Three separate LNAs with single-ended inputs

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

Baseband gain range = 100 dB

• Gain selectable in 2 dB steps

• Integrated receive baseband filters with tunable

bandwidth

• Integrated DC offset correction sequencer

• Reduced filtering requirements with translational

loop transmit architecture

The receive path implements a direct down-conversion architecture that eliminates

the need for Intermediate Frequency (IF) components. The CX74063 receiver

consists of three integrated Low Noise Amplifiers (LNAs), a quadrature

demodulator, tunable receiver baseband filters, and a DC-offset correction

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).

• Integrated transmit VCOs

• Wide RF range for quad band operation

• Integrated PAC loop

• Single integrated, fully programmable fractional-N

synthesizer suitable for multi-slot GPRS operation

• Fully integrated wideband Ultra High Frequency

(UHF) VCO

• Integrated crystal oscillator

• Separate enable lines for power management

transmit, receive, and synthesizer modes

• Supply voltage down to 2.6 V

• Band select and front-end enable states may be

exercised on output pins to control external

circuitry.

The CX74063 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.

• Low external component count

• Optional bypass of baseband filtering for use with

high dynamic range Analog to Digital Converters

(ADCs) for current savings

The CX74063 is available as a 56-pin RFLGA™ 8x8 mm package. Package

dimensions are shown in Figure 1.

• Interfaces to low dynamic range ADC

• Meets AM suppression requirements without

baseband interaction.

• 56-pin RFLGA 8x8 mm package

• Low power standby mode

Applications

• GSM850, EGSM900, DCS1800, and PCS1900

handsets

• GPRS handsets and modules

• EDGE downlink support

Product Summary

Skyworks – Preliminary

Proprietary Information and Specifications Are Subject to Change

103008A

August 22, 2002

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与CX74063相关器件

型号	品牌	获取价格	描述	数据表
CX74063-26	SKYWORKS	获取价格	RF Transceiver for Multi-Band GSM, GPRS, and EDGE Applications with Power Ramping Controll
CX74063-34	SKYWORKS	获取价格	RF Transceiver with Power Ramping Controller and Integrated Crystal Oscillator with 13 MHz
CX74063-35	SKYWORKS	获取价格	RF Transceiver with Power Ramping Controller and Integrated Crystal Oscillator with 13 MHz
CX74063-36	SKYWORKS	获取价格	RF Transceiver with Power Ramping Controller and Integrated Crystal Oscillator with 13 MHz
CX74063-3X	SKYWORKS	获取价格	RF Transceiver with Power Ramping Controller and Integrated Crystal Oscillator with 13 MHz
CX74070	ETC	获取价格	CX74070 Receiver for PCS and GPS\|Handset RF ICs:CDMA / CDMA2000
CX74076	ETC	获取价格	CX74076 Receiver for CDMA and GPS\|Handset RF ICs:CDMA / CDMA2000
CX7461	ETC	获取价格	红外遥控发射电路
CX754	ONSEMI	获取价格	TRANSISTOR TRANSISTOR,BJT,PNP,50V V(BR)CEO,4A I(C),TO-220AB, BIP General Purpose Power
CX77105	SKYWORKS	获取价格	Power Amplifier Module for CDMA/AMPS (824-849 MHz)

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