CX74063-34 datasheet(8/62 Pages) SKYWORKS

부품명	CX74063-34

상세설명	RF Transceiver with Power Ramping Controller and Integrated Crystal Oscillator with 13 MHz Output for Multi-Band GSM, GPRS, and EDGE Applications

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제조업체	SKYWORKS [Skyworks Solutions Inc.]

홈페이지	http://www.skyworksinc.com

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Data Sheet I CX74063-34/-35/-36

8

Skyworks Solutions, Inc., Proprietary and Confidential

NOVEMBER 25, 2003

[781] 376-3000 I FAX [781] 376-3100 I SALES@SKYWORKSINC.COM I WWW.SKYWORKSINC.COM

103116C

Table 1. CX74063-3x Signal Descriptions (5 of 5)

Pin #

Name

Description

Equivalent Circuit

48

RXQN

Receiver output Q negative

49

RXQP

Receiver output Q positive

50

RXIN

Receiver output I negative

51

RXIP

Receiver output I positive

52

VCC4

Baseband supply

VCC4

53

VCCTXVCO

Transmit VCO supply

VCCTXVCO

54

TX900

Low band transmit VCO

55

TX1800/TX1900

DCS and PCS transmit VCO output

56

TXVCOTUNE

Transmit VCO control input

Technical Description

The CX74063-3x transceiver contains the following sections,

as shown in Figure 2.

• Receive section. Includes three integrated LNAs, a

quadrature demodulator section that performs direct down

conversion, baseband amplifier circuitry with I/Q outputs,

and three stages of DC offset correction. The receiver can

be calibrated to optimize IP2 performance.

• Synthesizer section. Includes an integrated on-chip VCO

locked by a fractional-N synthesizer loop, and a crystal

oscillator to supply the reference frequency.

• Transmit section. The TX path is a translational loop

architecture consisting of an I/Q modulator, integrated high

power VCOs, offset mixer, programmable divider, PFD, and

charge pump. The device also provides integrated gain

controller for the PAC loop, plus the bias generator for an

external diode detector.

A 3-wire serial interface controls the transceiver and

synthesizer. The receiver gain control, as well as the division

ratios and charge pump currents in the synthesizer and

transmitter, can be programmed using 24-bit words. These

24-bit words are programmed using the 3-wire input signals

CLK, DATA, and LE. To ensure that the data stays latched in

power down mode, pin 43 (VDDBB) must be continuously

supplied with voltage. This pin is provided for the digital

sections to allow power supply operation compatible with

modern digital baseband devices.

The TXENA, RXENA, and SXENA signals separately enable the

CX74063-3x transmitter, receiver, and synthesizer sections.

TXENA and RXENA should be held low during programming.

SXENA should be held high during the programming of the R3

IP2 Calibration Register. (These timing signals are detailed in

Figures 9, 10, and 11.)

유사한 부품 번호 - CX74063-34

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Skyworks Solutions Inc.	CX74063-26	1Mb / 59P	RF Transceiver for Multi-Band GSM, GPRS, and EDGE Applications with Power Ramping Controller and Integrated Crystal Oscillator with 26 MHz Output

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유사한 설명 - CX74063-34

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