ADRF6603

LAST TIME BUY

1100 MH z to 3200 MH z R x Mixer with Integrated Fractional-N PLL and VCO

Analog Devices ADRF6603 Product Info

10 February 2026 6

Features

Rx mixer with integrated fractional-N PLL
RF input frequency range: 1100 MHz to 3200 MHz
Internal LO frequency range:
2100 MHz to 2600 MHz
Input P1dB: 14.8 dBm
Input IP3: 28.5 dBm
IIP3 optimization via external pin

SSB noise figure
IP3SET pin open: 14.3 dB
IP3SET pin at 3.3 V: 15.6 dB
Voltage conversion gain: 6.7 dB
Matched 200 Ω IF output impedance
IF 3 dB bandwidth: 500 MHz
Programmable via 3-wire SPI interface
40-lead, 6 mm × 6 mm LFCSP

Part details & applications

The ADRF6603 is a high dynamic range active mixer with integrated phase-locked loop (PLL) and voltage controlled oscillator (VCO). The PLL/synthesizer uses a fractional-N PLL to generate a f_LO input to the mixer. The reference input can be divided or multiplied and then applied to the PLL phase frequency detector (PFD).

The PLL can support input reference frequencies from 12 MHz to 160 MHz. The PFD output controls a charge pump whose output drives an off-chip loop filter.

The loop filter output is then applied to an integrated VCO. The VCO output at 2 × f_LO is applied to an LO divider, as well as to a programmable PLL divider. The programmable PLL divider is controlled by a sigma-delta (Σ-Δ) modulator (SDM). The modulus of the SDM can be programmed from 1 to 2047.

The active mixer converts the single-ended 50 Ω RF input to a 200 Ω differential IF output. The IF output can operate up to 500 MHz.

The ADRF6603 is fabricated using an advanced silicon-germanium BiCMOS process. It is available in a 40-lead, RoHS-compliant, 6 mm × 6 mm LFCSP with an exposed paddle. Performance is specified over the −40°C to +85°C temperature range.

APPLICATIONS

Cellular base stations

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