ADF4208BRUZ-RL

更新时间： 2024-12-01 13:05:27

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ADF4208BRUZ-RL 数据手册

Dual RF PLL Frequency Synthesizers

ADF4206/ADF4207/ADF4208

GENERAL DESCRIPTION

FEATURES

The ADF4206 family of dual frequency synthesizers can be

used to implement local oscillators in the upconversion and

downconversion sections of wireless receivers and transmitters.

Each synthesizer consists of a low-noise digital PFD (Phase

Frequency Detector), a precision charge pump, a programmable

reference divider, programmable A and B counters and a dual-

modulus prescaler (P/P + 1). The A (6-bit) and B (11-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 frequen-

cies at the PFD input. The on-chip oscillator circuitry allows

the reference input to be derived from crystal oscillators.

ADF4206: 550 MHz/550 MHz

ADF4207: 1.1 GHz/1.1 GHz

ADF4208: 2.0 GHz/1.1 GHz

2.7 V to 5.5 V Power Supply

Selectable Charge Pump Supply (VP) Allows Extended

Tuning Voltage in 3 V Systems

Selectable Charge Pump Currents

On-Chip Oscillator Circuit

Selectable Dual Modulus Prescaler

RF2: 32/33 or 64/65

RF1: 32/33 or 64/65

3-Wire Serial Interface

Power-Down Mode

A complete PLL (Phase-Locked Loop) can be implemented if

the synthesizers are used with an external loop ﬁlter and VCOs

(Voltage Controlled Oscillators).

APPLICATIONS

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

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

CDMA, WCDMA)

Wireless LANS

Communications Test Equipment

CATV Equipment

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

FUNCTIONAL BLOCK DIAGRAM

V 1

V 2

N = BP + A

ADF4206/ADF4207/ADF4208

11-BIT RF2

B-COUNTER

PHASE

COMPARATOR

RF2

PRESCALER

RF2

CHARGE

PUMP

RF2

6-BIT RF2

A-COUNTER

RF2

LOCK

DETECT

OSC

OSCILLATOR

OSC

OUT

14-BIT RF2

R-COUNTER

OUTPUT

MUX

MUXOUT

CLOCK

DATA

22-BIT

DATA

SDOUT

RF1

14-BIT RF1

R-COUNTER

LOCK

DETECT

N = BP + A

CHARGE

PUMP

RF1

11-BIT RF1

B-COUNTER

PHASE

COMPARATOR

RF1

PRESCALER

RF1

6-BIT RF1

A-COUNTER

AGND

RF1

DGND

RF2

AGND

RF2

DGND

RF1

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

which 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

World Wide Web Site: http://www.analog.com

12 3 4 5 6 7...20

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ADF4208BRUZ-RL 替代型号

型号	品牌	替代类型	描述	数据表
ADF4208BRUZ-R7	ADI	完全替代	Dual, Integer-N 1.1 GHz / 2.0 GHz PLL
ADF4208BRU	ADI	完全替代	Dual RF PLL Frequency Synthesizers

与ADF4208BRUZ-RL相关器件

型号	品牌	获取价格	描述	数据表
ADF4210	ADI	获取价格	Dual RF/IF PLL Frequency Synthesizers
ADF4210_15	ADI	获取价格	Dual RF/IF PLL Frequency Synthesizers
ADF4210BCHIPS	ADI	获取价格	IC PHASE DETECTOR, 550 MHz, UUC, DIE, PLL or Frequency Synthesis Circuit
ADF4210BCP	ADI	获取价格	Dual RF/IF PLL Frequency Synthesizers
ADF4210BCP-REEL	ADI	获取价格	IC PLL FREQUENCY SYNTHESIZER, 1200 MHz, QCC20, CSP-20, PLL or Frequency Synthesis Circuit
ADF4210BCP-REEL7	ADI	获取价格	IC PLL FREQUENCY SYNTHESIZER, 1200 MHz, QCC20, CSP-20, PLL or Frequency Synthesis Circuit
ADF4210BRU	ADI	获取价格	Dual RF/IF PLL Frequency Synthesizers
ADF4210BRU-REEL	ADI	获取价格	IC PLL FREQUENCY SYNTHESIZER, 1200 MHz, PDSO20, TSSOP-20, PLL or Frequency Synthesis Circu
ADF4210BRU-REEL7	ADI	获取价格	IC PLL FREQUENCY SYNTHESIZER, 1200 MHz, PDSO20, TSSOP-20, PLL or Frequency Synthesis Circu
ADF4211	ADI	获取价格	Dual RF/IF PLL Frequency Synthesizers

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