ADF4212L Dual Power PLL Frequency Synthesizer _ BDTIC a Leading Distributor in China

ADF4212L Dual Power PLL Frequency Synthesizer

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

RF & Microwave

Data Sheets

Document	note
ADF4212L: Dual Low Power PLL Frequency Synthesizer Data Sheet (Rev. E)	PDF 400 kB

Application Notes

Document	note
AN-873: Lock Detect on the ADF4xxx Family of PLL Synthesizers (Rev. 0)	PDF 207 kB
AN-30: Ask the Applications Engineer - PLL Synthesizers	PDF 184 kB

Frequently Asked Questions

Document	note

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
ADF4212LBCPZ Production	20 ld LFCSP 4x4mm (2.1EP)	OTH 490	-40 to 85C	2.88	2.45	Y
ADF4212LBCPZ-RL Production	20 ld LFCSP 4x4mm (2.1EP)	REEL 5000	-40 to 85C	0	0	Y
ADF4212LBCPZ-RL7 Production	20 ld LFCSP 4x4mm (2.1EP)	REEL 1500	-40 to 85C	0	2.45	Y
ADF4212LBRUZ Production	20 ld TSSOP	OTH 75	-40 to 85C	2.88	2.45	Y
ADF4212LBRUZ-RL Production	20 ld TSSOP	REEL 2500	-40 to 85C	0	2.45	Y
ADF4212LBRUZ-RL7 Production	20 ld TSSOP	REEL 1000	-40 to 85C	0	2.45	Y