Datasheet > EVAL-ADF4154EB1

EVAL-ADF4154EB1

更新时间： 2024-11-26 22:17:23

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
20页	550K
描述
Fractional-N Frequency Synthesizer

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EVAL-ADF4154EB1 数据手册

Fractional-N Frequency Synthesizer

ADF4154

FEATURES

GENERAL DESCRIPTION

RF bandwidth 500 MHz to 4 GHz

2.7 V to 3.3 V power supply

Separate V_Pallows extended tuning voltage

Programmable dual-modulus prescaler 4/5, 8/9

Programmable charge pump currents

3-wire serial interface

The ADF4154 is a fractional-N frequency synthesizer that

implements local oscillators in the up conversion and down

conversion 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 Σ-Δ based fractional interpolator to allow program-

mable fractional-N division. The INT, FRAC, and MOD regis-

ters define an overall N divider (N = (INT + (FRAC/MOD))).

In addition, the 4-bit reference counter (R counter) allows

selectable REF_INfrequencies at the PFD input. A complete

phase-locked loop (PLL) can be implemented if the synthesizer

is used with an external loop filter and a voltage controlled

oscillator (VCO).

Digital lock detect

Power-down mode

Pin compatible with the ADF4110/ADF4111/

ADF4112/ADF4113, ADF4106 and ADF4153

Programmable modulus on fractional-N synthesizer

Trade-off noise versus spurious performance

Fast-lock mode with built-in timer

APPLICATIONS

CATV equipment

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

CDMA, WCDMA)

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

Wireless LANs

A key feature of the ADF4154 is the fast-lock mode with a built-

in timer. The user can program a predetermined count-down

time value so that the PLL will remain in wide bandwidth mode,

instead of having to control this time externally.

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.

Communications test equipment

FUNCTIONAL BLOCK DIAGRAM

SDV

SET

REFERENCE

4-BIT

R COUNTER

PHASE

×2

REF

CHARGE

PUMP

FREQUENCY

DETECTOR

DOUBLER

–

HIGH Z

DGND

LOCK

DETECT

CURRENT

SETTING

OUTPUT

MUX

MUXOUT

FAST-LOCK

SWITCH

RFCP3 RFCP2 RFCP1

DIV

N COUNTER

THIRD ORDER

FRACTIONAL

INTERPOLATOR

FRACTION

REG

MODULUS

REG

INTEGER REG

P = 4/5 OR 8/9

B = 9 BITS; A = 3 BITS

CLOCK

DATA

24-BIT

DATA

ADF4154

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

registered trademarks are the property of their respective owners.

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

Tel: 781.329.4700

Fax: 781.326.8703

www.analog.com

12 3 4 5 6 7...20

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与EVAL-ADF4154EB1相关器件

型号	品牌	获取价格	描述	数据表
EVAL-ADF4154EBZ1	ADI	获取价格	Fractional-N Frequency Synthesizer
EVAL-ADF4157EB1Z1	ADI	获取价格	High Resolution 6 GHz Fractional-N Frequency Synthesizer
EVAL-ADF4158EB1Z	ADI	获取价格	Direct Modulation/Waveform Generating, 6.1 GHz Fractional-N Frequency Synthesizer
EVAL-ADF4193EBZ1	ADI	获取价格	Low Phase Noise, Fast Settling, 6 GHz
EVAL-ADF4193EBZ2	ADI	获取价格	Low Phase Noise, Fast Settling, 6 GHz
EVAL-ADF4208EB1	ADI	获取价格	Evaluation Board For PLL Frequency Synthesizer
EVAL-ADF4212EB1	ADI	获取价格	Evaluation Board For PLL Frequency Synthesizer
EVAL-ADF4213EB1	ADI	获取价格	Evaluation Board For PLL Frequency Synthesizer
EVAL-ADF4213EB2	ADI	获取价格	2.35GHz Dual Evaluation Board For PLL Frequency Synthesizer
EVAL-ADF421XEB1	ADI	获取价格	Evaluation Board For PLL Frequency Synthesizer

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