ADI ADF5902WCCPZ

The ADF5902 is a 24 GHz transmitter (Tx) monolithic microwave integrated circuit (MMIC) with an on-chip, 24 GHz voltage controlled oscillator (VCO). The VCO features a fractional-N frequency synthesizer with waveform generation capability with programmable grid array (PGA) and dual transmitter channels for radar systems. The on-chip, 24 GHz VCO generates the 24 GHz signal for the two transmitter channels and the local oscillator (LO) output. Each transmitter channel contains a power control circuit. There is also an on-chip temperature sensor. Control of all the on-chip registers is through a simple, 4-wire serial peripheral interface (SPI). The ADF5902 comes in a compact, 32-lead, 5 mm×5 mm LFCSP package.

• 24 GHz to 24.25 GHz VCO (industrial, scientific, and medical (ISM) radio band)
• 2-channel 24 GHz power amplifier with 8 dBm output
• Single-ended outputs
• 2-channel muxed outputs with mute function
• Programmable output power
• LO output buffer
• RF frequency range: 24 GHz to 24.25 GHz
• Power control detector
• Auxiliary 8-bit ADC
• High and low speed FMCW ramp generation
• 25-bit fixed modulus allows subhertz frequency resolution
• PFD frequencies up to 110 MHz
• Normalized phase noise floor of −222 dBc/Hz
• Programmable charge pump currents
• ±c temperature sensor
• 4-wire SPI
• ESD performance HBM: 2000 V CDM: 250 V
• Qualified for automotive applications

• Automotive radars
• Industrial radars
• Microwave radar sensors