The uPC1222C is a bipolar analog integrated circuit designed for use in AM tuners and FM‑IF stages. It integrates an AM mixer, AM detector, AGC circuit, a high‑gain FM‑IF amplifier and FM detector, making it suitable for AM/FM radios, radio cassette players and similar devices.
Key specifications include a supply voltage range of 2.0 V to 6.0 V, package dissipation of 350 mW, operating temperature from –20 °C to +76 °C, and electrical performance such as a signal‑to‑noise ratio of up to 60 dB and total harmonic distortion below 0.8 %.
| Supply Voltage (Veco) min/typ/max | 2.0 V / 4.0 V / 6.0 V |
|---|---|
| Package Dissipation | 350 mW |
| Operating Temperature | -20 °C to +76 °C |
| Storage Temperature | -40 °C to +125 °C |
| Signal‑to‑Noise Ratio (S/N) | 50 dB – 60 dB |
| Total Harmonic Distortion (THD) | 0.2 % – 0.8 % |
| AM Rejection Ratio | 26 dB – 35 dB |
| Circuit Current (Ioc‑FM) | 6.5 mA – 15 mA |
| Input Limiting Voltage (Vitlim) | 33 dBµV – 45 dBµV |
| Drop Voltage Gain Loss (AAy‑eEM) | 1.5 dB – 5.0 dB |
The uPC1222C operates from 2.0 V minimum up to 6.0 V maximum, with a typical value of 4.0 V.
It contains an AM mixer, AM detector, AGC circuit, FM‑IF amplifier, FM detector and related local oscillator and IF stages.
The IC can operate from –20 °C to +76 °C and can be stored from –40 °C to +125 °C.
It is suitable for AM/FM radios, radio cassette players and similar consumer audio equipment.