ADF4106

Features:

6.0 GHz Bandwidth
2.7 V to 3.3 V Power Supply
Separate Charge Pump Supply (VP) Allows Extended Tuning Voltage in 3 V Systems
Programmable Dual Modulus Prescaler 8/9, 16/17, 32/33, 64/65
Programmable Charge Pump Currents
Programmable Anti-Backlash Pulsewidth
3-Wire Serial Interface
Analog and Digital Lock Detect
Hardware and Software Power-Down Mode




Application

Broadband Wireless Access
Instrumentation
Wireless LANS
Base Stations For Wireless Radio




Pinout








Specifications

AV_DD to GND³. . . . . . . . . . . . . . . . . . . . . . 0.3 V to +3.6 V
AV_DD to DV_DD . . . . . . . . . . . . . . . . . . . . . .0.3 V to +0.3 V
V_P to GND . . . . . . . . . . . . . . . . . . . . . . . . .0.3 V to +5.3 V
V_P to AVDD . . . . . . . . . . . . . . . . . . . . . . . .0.3 V to +5.5 V
Digital I/O Voltage to GND . . . . . . . . 0.3 V to V_DD + 0.3 V
Analog I/O Voltage to GND . . . . . . . . 0.3 V to V_P + 0.3 V
REF_IN, RFI_NA, RF_INB to GND . . . . . . 0.3 V to V_DD + 0.3 V
Operating Temperature Range
Industrial (B Version) . . . . . . . . . . . . . . . 40°C to +85°C
Storage Temperature Range . . . . . . . . . 65°C to +150°C
Maximum Junction Temperature . . . . . . . . . . . . . . . .150°C
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . .215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . .220°C




Description

The ADF4106 frequency synthesizer can be used to implement local oscillators in the up-conversion and down-conversion sections of wireless receivers and transmitters. ADF4106 consists of a low-noise digital PFD (Phase Frequency Detector), 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 (13-bit) counters, in conjunction with the dual modulus prescaler (P/P + 1), implement an N divider (N = BP + A). In addition, the 14-bit reference counter (R Counter), allows selectable REFIN frequencies at the PFD input. A complete PLL (Phase-Locked Loop) can be implemented if the synthe- sizer is used with an external loop filter and VCO (Voltage Controlled Oscillator). Its very high bandwidth means that frequency doublers can be eliminated in many high-frequency systems, simplifying system architecture and lowering cost.