The TDA 2148 is a bipolar AM IF amplifier with a quasi‑synchronous demodulator, designed for French sound IF standards. It integrates a four‑stage control amplifier and offers a SCART interface with low distortion and high input sensitivity.
Key features include a simple external circuit, low part count, full SCART connectivity, and partial compatibility with the TDA 2460. The document lists absolute maximum ratings, typical electrical characteristics, and detailed pin assignments for the 14‑pin DIP package.
| Supply voltage (Vs) range | 10.5 V – 15.75 V |
|---|---|
| Input frequency range | 15 MHz – 45 MHz |
| Current consumption (Is) typical | 38 mA |
| Reference voltage (V3) typical | 6 V |
| SCART output voltage (Vos) typical | 800 mV |
| Total harmonic distortion (THD) typical | 1 % |
| Input resistance (Rias) | 1.8 kΩ |
| Output resistance (Ras) | 200 Ω |
| Gain SCART input/AF input | 0 dB (typical) |
The device operates with a supply voltage between 10.5 V and 15.75 V.
It supports input frequencies from 15 MHz to 45 MHz.
The TDA 2148 comes in a 14‑pin DIP package; pin 1 is GND.
Typical current consumption is 38 mA.