ADF4212L - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

ADF4212L
Manufacturer

ADI
ChipWorker Part#

CW389419225
Description

Dual Power PLL Frequency Synthesizer
Documentation

Datasheet

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ADF4212L Specifications

Attribute	Attribute Value

Part Number	ADF4212L
Manufacturer	ADI
ChipWorker Part#	CW389419225
Documentation	Datasheet
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Product Lifecycle Status	Active

Product Description

Product Details
The ADF4212L is a dual frequency synthesizer that can be used to implement local oscillators (LO) in the up-conversion and down-conversion sections of wireless receivers and transmitters. It can provide the LO for both the RF and IF sections. It consists of a low noise digital phase frequency detector (PFD), 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 (12-bit) counters, in conjunction with the dual modulus prescaler (P/P + 1), implement an N divider (N = BP + A). In addition, the 15-bit reference counter (R Counter), allows selectable REFIN frequencies at the PFD input. A complete phase-locked loop (PLL) can be implemented if the synthesizer is used with external loop filters and voltage controlled oscillators (VCOs).
Control of all the on-chip registers is via a simple 3-wire interface with 1.8 V compatibility. The devices operate with a power supply ranging from 2.7 V to 3.3 V and can be powered down when not in use.
**Applications**
Wireless handsets (GSM, PCS, DCS, DSC1800, CDMA, WCDMA)
Base stations for wireless Radio (GSM, PCS, DCS, CDMA, WCDMA)
Wireless LANS
Cable TV tuners (CATV)
Communications test equipment
### Features and Benefits
IDD total, 7.5 mA
Bandwidth RF/IF, 2.4 GHz/1.0 GHz
2.7 V to 3.3 V power supply
Separate VP allows extended tuning voltage
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
20-lead TSSOP and 20-lead LFCSP packages

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