The M494 is a monolithic LSI integrated circuit fabricated in SGS-THOMSON's EPM2 process; an N-channel, Planox, double poly MOS process capable of including a floating gate NV memory cell (EEPROM). The i.c. has been designed as a complete digital TV tuning system based on the voltage synthesis principle and as a replacement for all the conventional tuners.
The M494 is a monolithic LSI integrated circuit designed as a complete digital TV tuning system. It replaces conventional potentiometers and band switches by integrating a 13-bit voltage synthesizer and non-volatile memory for program storage and four analog control settings.
Key features include direct driving of a 7-segment LED display, an integrated remote control receiver compatible with the M708 transmitter, and support for multiple TV standards (PAL, SECAM, NTSC). The device is packaged in a 40-pin DIL plastic package.
| Package Type | 40 pin DIL plastic package |
|---|---|
| Memory Capacity | 20 program words (17 bit x 20) |
| Tuning Resolution | 12 bits |
| Data Retention | Min. 10 years |
| Operating Temperature | 0 to +70 °C |
| Supply Voltage (Vpp) | - 0.3 to 26 Vv |
The order code is M494B1.
It is compatible with the M708 transmitter (address 10).
The frequency should be between 455 and 510kHz.