ADF4107

Features:

7.0 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 antibacklash pulsewidth
3-wire serial interface
Analog and digital lock detect
Hardware and software power-down mode




Application

Broadband wireless access
Satellite systems
Instrumentation
Wireless LANs
Base stations for wireless radio




Pinout








Specifications



AV_DD to GND¹ 0.3 V to +3.6 V
AV_DD to DVDD 0.3 V to +0.3 V
V_P to GND 0.3 V to +5.8 V
V_P to AVDD0.3 V to +5.8 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 +125°C
Maximum Junction Temperature 150°C
TSSOP _JA Thermal Impedance 150.4°C/W
CSP JA Thermal Impedance122°C/W
Lead Temperature, Soldering
Vapor Phase (60 sec)215°C
Infrared (15 sec) 220°C
Transistor Count
CMOS 6425
Bipolar 303




Description

The ADF4107 frequency synthesizer can be used to implement local oscillators in the up-conversion and down-conversion sections of wireless receivers and transmitters. ADF4107 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. complete PLL (phase-locked loop) can be implemented if the synthesizer 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 reducing cost.