ADF4153

Features:

RF bandwidth 500 MHz to 4 GHz
2.7 V to 3.3 V power supply
Separate V_P allows extended tuning voltage
Programmable dual-modulus prescaler 4/5, 8/9
Programmable charge pump currents
3-wire serial interface
Analog and digital lock detect
Power-down mode
Pin compatible with the ADF4110/ADF4111/ADF4112/ADF4113 and ADF4106
Programmable modulus on fractional-N synthesizer
Trade-off noise versus spurious performance




Application

CATV equipment
Base stations for mobile radio (GSM, PCS, DCS, CDMA, WCDMA)
Wireless handsets (GSM, PCS, DCS, CDMA, WCDMA)
Wireless LANs
Communications test equipment




Pinout








Specifications

V_DD to GND −0.3 V to +4 V
V_DD to VDD −0.3 V to +0.3 V
V_P to GND −0.3 V to +5.8 V
V_P to VDD−0.3 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_DD + 0.3 V
REF_IN, RF_IN 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 Temperature150°C
TSSOP _JA Thermal Impedance 150.4°C/W
LFCSP _JA Thermal Impedance (Paddle Soldered) 122°C/W
LFCSP _JA Thermal Impedance (Paddle Not Soldered) 216°C/W
Lead Temperature, Soldering
Vapor Phase (60 sec) 215°C
Infrared 220°C






Description

The ADF4153 is a fractional-N frequency synthesizer that implements local oscillators in the upconversion and downconversion sections of wireless receivers and transmitters. It consists of a low noise digital phase frequency detector (PFD), a precision charge pump, and a programmable reference divider. There is a - based fractional interpolator to allow programmable fractional-N division. The INT, FRAC, and MOD registers define an overall N divider (N = (INT + (FRAC/MOD))). In addition, the 4-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 an external loop filter and a voltage controlled oscillator (VCO).

Control of all on-chip registers is via a simple 3-wire interface. ADF4153 operate with a power supply ranging from 2.7 V to 3.3 V and can be powered down when not in use.