Technology of Q 2500 colour TV set
Parameter Value/algorithm Notes
Chip STV0299B Manufacturer: ST Microelec-
tronics
AGC AGC analogue/digital tuner with
PWM output.
Internal digital AGC on power
optimisation within the signal
bandwidth.
AFC digital software AFC
Forward Error Correction (FEC)
1. FEC stage Viterbi decoder
- Constraint length 7
- Rate 1
- Other code rates 1, 2/3, 3, 5/6, 7/8
- Rate selection Automatic or manual
2. De-interleaver
- Synchronous word extraction
- Convolutional interleaver
- Depth 12
3. Reed Solomon Decoder
- Number of parity bytes 12
- Block length 204
- Correctable byte error 8
- Energy dispersal de-scrambler
Other
- Carrier current output Parallel or serial
- Used mode for output Serial
- Control IIC bus
- On Chip Error Monitoring
Document Q 2500 58 ? Loewe ProCollege |
ACEC
