ADF4156

更新时间： 2024-11-30 03:17:47

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
24页	421K
描述
6 GHz Fractional-N Frequency Synthesizer

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ADF4156 数据手册

6 GHz Fractional-N Frequency Synthesizer

ADF4156

FEATURES

GENERAL DESCRIPTION

RF bandwidth to 6 GHz

The ADF4156 is a 6 GHz fractional-N frequency synthesizer

that implements local oscillators in the upconversion and

downconversion sections of wireless receivers and transmitters.

It consists of a low noise digital phase frequency detector

(PFD), a precision charge pump, and a programmable reference

divider. There is a sigma-delta (Σ-Δ) based fractional interpolator

to allow programmable fractional-N division. The INT, FRAC,

and MOD registers define an overall N divider (N = (INT +

(FRAC/MOD))). The RF output phase is programmable for

applications that require a particular phase relationship between

the output and the reference. The ADF4156 also features cycle

slip reduction circuitry leading to faster lock times without the

need for modifications to the loop filter.

2.7 V to 3.3 V power supply

Separate V_Pallows extended tuning voltage

Programmable fractional modulus

Programmable charge pump currents

3-wire serial interface

Digital lock detect

Power-down mode

Pin compatible with

ADF4110/ADF4111/ADF4112/ADF4113/ADF4106/

ADF4153 and ADF4154 frequency synthesizers

Programmable RF output phase

Loop filter design possible with ADISimPLL

Cycle slip reduction for faster lock times

Control of all on-chip registers is via a simple 3-wire interface.

The device operates with a power supply ranging from 2.7 V to

3.3 V and can be powered down when not in use.

APPLICATIONS

CATV equipment

Base stations for mobile radio (WiMAX, GSM, PCS, DCS,

SuperCell 3G, CDMA, WCDMA)

Wireless handsets (GSM, PCS, DCS, CDMA, WCDMA)

Wireless LANs, PMR

Communications test equipment

FUNCTIONAL BLOCK DIAGRAM

SET

ADF4156

REFERENCE

5-BIT

R COUNTER

×2

REF

DOUBLER

DIVIDER

PHASE

CHARGE

PUMP

FREQUENCY

DETECTOR

–

HIGH Z

CSR

DGND

LOCK

DETECT

CURRENT

SETTING

OUTPUT

MUX

MUXOUT

OUT

RFCP4 RFCP3 RFCP2 RFCP1

DIV

N COUNTER

THIRD ORDER

FRACTIONAL

INTERPOLATOR

CLOCK

DATA

FRACTION MODULUS

INTEGER

REG

32-BIT

DATA

REG

AGND

DGND

CPGND

Figure 1.

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

12 3 4 5 6 7...24

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与ADF4156相关器件

型号	品牌	获取价格	描述	数据表
ADF4156BCPZ	ADI	获取价格	6 GHz Fractional-N Frequency Synthesizer
ADF4156BCPZ-RL	ADI	获取价格	6 GHz Fractional-N Frequency Synthesizer
ADF4156BCPZ-RL7	ADI	获取价格	6 GHz Fractional-N Frequency Synthesizer
ADF4156BRUZ	ADI	获取价格	6 GHz Fractional-N Frequency Synthesizer
ADF4156BRUZ-RL	ADI	获取价格	6 GHz Fractional-N Frequency Synthesizer
ADF4156BRUZ-RL7	ADI	获取价格	6 GHz Fractional-N Frequency Synthesizer
ADF4157	ADI	获取价格	High Resolution 6 GHz Fractional-N Frequency Synthesizer
ADF4157BCPZ1	ADI	获取价格	High Resolution 6 GHz Fractional-N Frequency Synthesizer
ADF4157BCPZ-RL	ADI	获取价格	High Resolution 6 GHz Fractional-N Frequency Synthesizer
ADF4157BCPZ-RL1	ADI	获取价格	High Resolution 6 GHz Fractional-N Frequency Synthesizer

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