ADF4212

更新时间： 2024-11-03 22:40:31

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
20页	252K
描述
Dual RF/IF PLL Frequency Synthesizers

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ADF4212 数据手册

Dual RF/IF PLL Frequency Synthesizers

ADF4210/ADF4211/ADF4212/ADF4213

GENERAL DESCRIPTION

FEATURES

The ADF4210/ADF4211/ADF4212/ADF4213 is a dual frequency

synthesizer that can be used to implement local oscillators (LO)

in the upconversion and downconversion sections of wireless

receivers and transmitters. They can provide the LO for both

the RF and IF sections. They consist of a low-noise digital PFD

(Phase Frequency Detector), a precision charge pump, a pro-

grammable reference divider, programmable A and B Counters

and a dual-modulus prescaler (P/P + 1). The A (6-bit) and B

(12-bit) counters, in conjunction with the dual modulus prescaler

(P/P + 1), implement an N divider (N = BP + A). In addition,

the 14-bit reference counter (R Counter), allows selectable

REFIN frequencies at the PFD input. A complete PLL (Phase-

Locked Loop) can be implemented if the synthesizer is used with

an external loop ﬁlter and VCO (Voltage Controlled Oscillators).

ADF4210: 550 MHz/1.2 GHz

ADF4211: 550 MHz/2.0 GHz

ADF4212: 1.0 GHz/2.7 GHz

ADF4213: 1.0 GHz/3 GHz

2.7 V to 5.5 V Power Supply

Separate Charge Pump Supply (V_P) Allows Extended

Tuning Voltage in 3 V Systems

Programmable Dual Modulus Prescaler

RF and IF: 8/9, 16/17, 32/33, 64/65

Programmable Charge Pump Currents

3-Wire Serial Interface

Analog and Digital Lock Detect

Fastlock Mode

Power-Down Mode

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

The devices operate with a power supply ranging from 2.7 V to

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

APPLICATIONS

Base Stations for Wireless Radio (GSM, PCS, DCS,

CDMA, WCDMA)

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

Wireless LANS

Communications Test Equipment

CATV Equipment

FUNCTIONAL BLOCK DIAGRAM

V 1

V 2

SET

12-BIT IF

B-COUNTER

REFERENCE

PHASE

COMPARATOR

PRESCALER

CHARGE

PUMP

8-BIT IF

A-COUNTER

IF CURRENT

SETTING

LOCK

DETECT

IFCP3 IFCP2 IFCP1

OSCILLATOR

REF

14-BIT IF

R-COUNTER

OUTPUT

MUX

MUXOUT

CLOCK

DATA

24-BIT

DATA

SDOUT

RFCP3 RFCP2 RFCP1

14-BIT RF

R-COUNTER

LOCK

IF CURRENT

SETTING

DETECT

12-BIT RF

B-COUNTER

CHARGE

PUMP

PRESCALER

PHASE

COMPARATOR

REFERENCE

6-BIT RF

A-COUNTER

ADF4210/ADF4211/

ADF4212/ADF4213

SET

FL SWITCH

DGND

AGND

DGND

AGND

REV. A

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat

may result from its use. No license is granted by implication or otherwise

under any patent or patent rights of Analog Devices.

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

Tel: 781/329-4700

Fax: 781/326-8703

www.analog.com

12 3 4 5 6 7...20

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与ADF4212相关器件

型号	品牌	获取价格	描述	数据表
ADF4212_15	ADI	获取价格	Dual RF/IF PLL Frequency Synthesizers
ADF4212BCHIPS	ADI	获取价格	IC PHASE DETECTOR, 3000 MHz, UUC, DIE, PLL or Frequency Synthesis Circuit
ADF4212BCP	ADI	获取价格	Dual RF/IF PLL Frequency Synthesizers
ADF4212BRU	ADI	获取价格	Dual RF/IF PLL Frequency Synthesizers
ADF4212BRU-REEL	ADI	获取价格	IC PLL FREQUENCY SYNTHESIZER, 2700 MHz, PDSO20, TSSOP-20, PLL or Frequency Synthesis Circu
ADF4212BRU-REEL7	ADI	获取价格	IC PLL FREQUENCY SYNTHESIZER, 2700 MHz, PDSO20, TSSOP-20, PLL or Frequency Synthesis Circu
ADF4212BRUZ	ADI	获取价格	Dual, Integer-N 0.5 GHz / 3.0 GHz PLL
ADF4212BRUZ-RL	ADI	获取价格	Dual, Integer-N 0.5 GHz / 3.0 GHz PLL
ADF4212BRUZ-RL7	ADI	获取价格	Dual, Integer-N 0.5 GHz / 3.0 GHz PLL
ADF4212L	ADI	获取价格	Dual Low Power PLL Frequency Synthesizer

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