ADF4252BCPZ

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Analog Devices Inc./Maxim Integrated

DUAL FRACTIONAL-N/INTEGER-N FREQUENCY SYNTHESIZER

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ADF4252BCPZ

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Analog Devices Inc./Maxim Integrated

DUAL FRACTIONAL-N/INTEGER-N FREQUENCY SYNTHESIZER

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Description Specifications Series Pricing CAD Documents

Description

General part information

ADF4252 Series

The ADF4252 is a dual fractional-N/integer-N frequency synthesizer that can be used to implement local oscillators (LO) in the upconversion and downconversion sections of wireless receivers and transmitters. Both the RF and IF synthesizers consist of a low noise digital phase frequency detector (PFD), a precision charge pump, and a programmable reference divider. The RF synthesizer has a Σ-Δ-based fractional interpolator that allows programmable fractional-N division. The IF synthesizer has programmable integer-N counters. A complete phase-locked loop (PLL) can be implemented if the synthesizer is used with an external loop filter and voltage controlled oscillator (VCO).Control of all the 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.ApplicationsBase stations for mobile radio (GSM, PCS, DCS, CDMA, WCDMA)Wireless handsets (GSM, PCS, DCS, CDMA, WCDMA)Wireless LANsCommunications test equipmentCATV equipment

Technical Specifications

Parameters and characteristics for this part

Specification	ADF4252BCPZ

Differential Input	Yes
Differential Output	No
Divider	Yes
Frequency - Max	3 GHz
Input	CMOS, TTL
Input Ratio	3
Mounting Type	Surface Mount
Multiplier	No
Number of Circuits	1
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Output	Clock
Output Ratio	2
Package / Case	CSP, 24-WFQFN Exposed Pad
Package Length	4 mm
Package Name	24-LFCSP-WQ
Package Width	4 mm
PLL	Yes
Type	Integer N, Fractional N, Clock/Frequency Synthesizer (RF/IF)
Voltage - Supply (Maximum)	3.3 V
Voltage - Supply (Minimum)	2.7 V

ADF4252 Series

Part	Voltage - Supply (Maximum)	Voltage - Supply (Minimum)	Package Width	Package Name	Package Length	Mounting Type	Input	Type	PLL	Output Ratio	Input Ratio	Package / Case	Multiplier	Divider	Output	Frequency - Max	Differential Input	Differential Output	Number of Circuits	Operating Temperature (Min)	Operating Temperature (Max)
Analog Devices Inc./Maxim Integrated ADF4252BCPZ-RL	3.3 V	2.7 V	4 mm	24-LFCSP-WQ	4 mm	Surface Mount	CMOS TTL	Clock/Frequency Synthesizer (RF/IF) Fractional N Integer N	Yes	2	3	24-WFQFN Exposed Pad CSP	No	Yes	Clock	3 GHz	Yes	No	1	-40 °C	85 °C
Analog Devices Inc./Maxim Integrated ADF4252BCPZ	3.3 V	2.7 V	4 mm	24-LFCSP-WQ	4 mm	Surface Mount	CMOS TTL	Clock/Frequency Synthesizer (RF/IF) Fractional N Integer N	Yes	2	3	24-WFQFN Exposed Pad CSP	No	Yes	Clock	3 GHz	Yes	No	1	-40 °C	85 °C
Analog Devices Inc./Maxim Integrated ADF4252BCP	3.3 V	2.7 V	4 mm	24-LFCSP-WQ	4 mm	Surface Mount	CMOS	Clock/Frequency Synthesizer (RF/IF) Fractional N Integer N	Yes	2	3	24-WFQFN Exposed Pad CSP	No	Yes	Clock	3 GHz	Yes	No
Analog Devices Inc./Maxim Integrated ADF4252BCPZ-R7	3.3 V	2.7 V	4 mm	24-LFCSP-WQ	4 mm	Surface Mount	CMOS TTL	Clock/Frequency Synthesizer (RF/IF) Fractional N Integer N	Yes	2	3	24-WFQFN Exposed Pad CSP	No	Yes	Clock	3 GHz	Yes	No	1	-40 °C	85 °C
Analog Devices Inc./Maxim Integrated ADF4252BCP-REEL7	3.3 V	2.7 V	4 mm	24-LFCSP-WQ	4 mm	Surface Mount	CMOS	Clock/Frequency Synthesizer (RF/IF) Fractional N Integer N	Yes	2	3	24-WFQFN Exposed Pad CSP	No	Yes	Clock	3 GHz	Yes	No

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

ADF4252BCPZ | Datasheet

AN-30: Ask the Applications Engineer - PLL Synthesizers

Package Drawing - 24-Lead LFCSP (4mm x 4mm x 0.75mm w/ EP)