The document is about a product supplied by AIT1000. The product is a 44 MHz IF SAWF RF input cable modem PHY PicoTuner. It is known for its high performance and reliability.
The AIT1000 PicoTuner™ is a complete integrated RF tuner front‑end for cable‑modem applications. It combines GaAs and silicon CMOS technologies to provide up‑converter, down‑converter, dual synthesizer, SAW filter, DC‑DC converter, input filter and all passive components in a 40‑lead, 22 mm × 22 mm package that requires only a single +5 V supply.
Key features include -35 dB gain, -82 dBc phase noise, better than -50 dBc image rejection, 3‑wire serial programming, and operation from –40 °C to +85 °C. The device is DOCSIS‑compliant and suited for cable modems, set‑top boxes, home gateways, PC add‑on cards or motherboards.
| Operating Voltage Range | +4.75 V to +5.25 V |
|---|---|
| Operating Temperature Range | -40 °C to +85 °C |
| Supply Current | 350 mA |
| Power Dissipation | 1.75 W |
| Phase Noise (10 kHz offset) | -82 dBc/Hz |
| Noise Figure | 9.5 dB |
| Conversion Gain (Uncombined) | 35 dB (typ) |
| Image Rejection | -50 dBc (typ) |
The AIT1000 operates from a single +5 V supply, with an acceptable range of +4.75 V to +5.25 V.
The device is rated for operation from –40 °C up to +85 °C.
Typical conversion gain (uncombined) is 35 dB.