ADF4158 datasheet(1/36 Pages) AD

tên linh kiện	ADF4158

Giải thích chi tiết về linh kiện	Direct Modulation/Waveform Generating, 6.1 GHz Fractional-N Frequency Synthesizer

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Direct Modulation/Waveform Generating,

6.1 GHz Fractional-N Frequency Synthesizer

ADF4158

Rev. 0

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

responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother

rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No

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

Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.

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

Tel: 781.329.4700

www.analog.com

Fax: 781.461.3113

FEATURES

RF bandwidth to 6.1 GHz

25-bit fixed modulus allows subhertz frequency resolution

Frequency and phase modulation capability

Sawtooth and triangular waveforms in the frequency domain

Parabolic ramp

Ramp superimposed with FSK

Ramp with 2 different sweep rates

Ramp delay

Ramp frequency readback

Ramp interruption

2.7 V to 3.3 V power supply

Separate VP allows extended tuning voltage

Programmable charge pump currents

3-wire serial interface

Digital lock detect

Power-down mode

Cycle slip reduction for faster lock times

Switched bandwidth fast-lock mode

APPLICATIONS

FMCW radar

Communications test equipment

GENERAL DESCRIPTION

The ADF4158 is a 6.1 GHz, fractional-N frequency synthesizer

with modulation and waveform generation capability. It con-

tains a 25-bit fixed modulus, allowing subhertz resolution at

6.1 GHz. 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 and FRAC registers define an overall N-divider as N = INT

+ (FRAC/225).

The ADF4158 can be used to implement frequency shift keying

(FSK) and phase shift keying (PSK) modulation. There are also

a number of frequency sweep modes available, which generate

various waveforms in the frequency domain, for example,

sawtooth and triangular waveforms. The ADF4158 features

cycle slip reduction circuitry, which leads to faster lock times,

without the need for modifications to the loop filter.

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

face. 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.

FUNCTIONAL BLOCK DIAGRAM

LOCK

DETECT

N-COUNTER

CP

SW1

REFERENCE

DATA

LE

TXDATA

CE

32-BIT

DATA

REGISTER

CLK

REFIN

AVDD

AGND

VDD

DGND

RDIV

NDIV

DGND

CPGND

DVDD

VP

RSET

RFINA

RFINB

OUTPUT

MUX

–

+

HIGH-Z

PHASE

FREQUENCY

DETECTOR

ADF4158

THIRD-ORDER

FRACTIONAL

INTERPOLATOR

MODULUS

225

FRACTION

REG

INTEGER

REG

CSR

×2

DOUBLER

5-BIT

R-COUNTER

÷2

DIVIDER

CHARGE

PUMP

MUXOUT

FLO SWITCH

SW2

Figure 1.

Số phần tương tự - ADF4158

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Analog Devices	ADF4158	561Kb / 35P	Direct Modulation/Waveform Generating Fractional-N Frequency Synthesizer 6/2018-Rev. H to Rev. I
	ADF4158CCPZ	561Kb / 35P	Direct Modulation/Waveform Generating Fractional-N Frequency Synthesizer 6/2018-Rev. H to Rev. I
	ADF4158CCPZ-RL7	561Kb / 35P	Direct Modulation/Waveform Generating Fractional-N Frequency Synthesizer 6/2018-Rev. H to Rev. I
	ADF4158WCCPZ	561Kb / 35P	Direct Modulation/Waveform Generating Fractional-N Frequency Synthesizer 6/2018-Rev. H to Rev. I
	ADF4158WCCPZ-RL7	561Kb / 35P	Direct Modulation/Waveform Generating Fractional-N Frequency Synthesizer 6/2018-Rev. H to Rev. I

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Mô tả tương tự - ADF4158

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Analog Devices	ADF4153	354Kb / 24P	Fractional-N Frequency Synthesizer 7/03-Revision 0
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Skyworks Solutions Inc.	SKY72302-21	180Kb / 23P	SKY72302-21: Spur-Free, 6.1 GHz Dual Fractional-N Frequency Synthesizer
Analog Devices	ADF4159	627Kb / 36P	Direct Modulation/Fast Waveform Generating, 13 GHz, Fractional-N Frequency Synthesizer REV. B
	ADF4156	393Kb / 24P	6.2 GHz Fractional-N Frequency Synthesizer Rev. E
	ADF4159	653Kb / 36P	Direct Modulation/Fast Waveform Generating, 9/13-Rev. B to Rev. C
	ADF4169	675Kb / 36P	Direct Modulation/Fast Waveform Generating, Fractional-N Frequency Synthesizer 7/15-Revision 0
	ADF4158	561Kb / 35P	Direct Modulation/Waveform Generating Fractional-N Frequency Synthesizer 6/2018-Rev. H to Rev. I

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