ADF4107 General 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. It 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.
ADF4107 Maximum Ratings
AVDD to GND1 0.3 V to +3.6 V
AVDD to DVDD 0.3 V to +0.3 V
VP to GND 0.3 V to +5.8 V
VP to AVDD 0.3 V to +5.8 V
Digital I/O Voltage to GND 0.3 V to VDD + 0.3 V
Analog I/O Voltage to GND 0.3 V to VP + 0.3 V
REFIN, RFINA, RFINB to GND 0.3 V to VDD + 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 Impedance 122°C/W
Lead Temperature, Soldering
Vapor Phase (60 sec) 215°C
Infrared (15 sec) 220°C
Transistor Count
CMOS 6425
Bipolar 303
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
ADF4107 Typical Application
Broadband wireless access
Satellite systems
Instrumentation
Wireless LANs
Base stations for wireless radio
ADF4107 Connection Diagram
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