TDA10023HT - Philips

TDA10023HT Single chip DVB-C/MCNS channel receiver

The TDA10023HT is a single chip DVB-C/MCNS channel receiver for 4, 16, 32, 64, 128 and 256-QAM modulated signals. The device interfaces directly to the IF signal, which is sampled by a 10-bit A/D converter. The TDA10023HT performs the clock and the carrier recovery functions. The digital loop filters for both clock and carrier recovery are programmable in ord.

Features

s s s s s s s s s 4,16, 32, 64, 128 and 256 QAM demodulator (ITU-T J.83 annex A-B and C compatible) High performance for 256 QAM especially for direct IF applications On-chip 10-bit ADC On-chip PLL for crystal frequency multiplication (typically 16 MHz crystal) Digital down conversion Programmable half Nyquist filter (roll off = 0.12, 0.13, 0.15 and 0.18) Two PWM AGC outputs with programmable take-over point (for tuner and down converter control) Clock timing recovery, with programmable second order loop filter Variable symbol rate capability from SACLK/64 to SACLK/4 (with low sampling clock: SA.