The TDA 2148 AM (double side‑band) amplifier is designed for French sound IF applications. It integrates a four‑stage capacitively coupled control amplifier, a quasi‑synchronous demodulator and an integral mean‑value control, providing high input sensitivity, low distortion and a full SCART interface.
The device is supplied in a 14‑lead DIP package and offers a wide operating voltage range, low current consumption, and robust performance specifications such as 0.3‑1 % THD and 60‑66 dB AGC range. Detailed pin functions, absolute maximum ratings and design‑related values are provided for system integration.
| Supply voltage (Vs) operating range | 10.5 V to 15.75 V |
|---|---|
| Input frequency range | 15 MHz to 45 MHz |
| Current consumption (Is) typical | 38 mA |
| SCART output voltage (Vos) typical | 800 mV |
| Total harmonic distortion (THD) typical | 1 % |
The device operates from 10.5 V to 15.75 V supply voltage.
It supports input frequencies from 15 MHz to 45 MHz.
Typical SCART output voltage is about 800 mV (range 700‑900 mV).
Typical THD is around 1 % (0.3‑1 %).