The TDA9873H is an economic multistandard dual FM demodulator and analog carrier stereo decoder with I2C-bus control. It features low power consumption, alignment-free multistandard FM sound demodulation, no external intercarrier sound band-pass filters required, auto mute switchable via I2C-bus, multistandard A2 stereo sound decoder, and more.
The Philips TDA9873H is a multistandard dual‑carrier stereo sound decoder designed for FM radio receivers. It integrates FM demodulation, stereo decoding, and I²C‑bus control with low power consumption and built‑in auto‑mute.
The document provides electrical specifications, pin assignments, functional descriptions, and details on the I²C‑bus interface, control ports, and ordering information for the QFP44 and QFP44‑S packages.
| Supply voltage (Vcc) | 5 V (typical) |
|---|---|
| Supply current | 60 mA (typical) |
| AF clipping level (RMS) | 1.4 V (1400 mV, typical) |
| FM‑PLL first carrier frequency (M standard) | 4.5 MHz |
The device is controlled via a two‑wire I²C‑bus (SDA and SCL) that provides serial data and clock signals.
The typical supply current is 60 mA.