TDA8295HN/C1557

The TDA8295HN/C1557 is designed as one kind of alignment-free digital multistandard vision and sound low IF signal PLL demodulator device that can be used in all countries worldwide for M/N, B/G/H, I, D/K, L and L-accent standard. CVBS and SSIF/mono audio is provided via two DACs.

Features of the TDA8295HN/C1557 are:(1)Internal PLL synthesizer which allows the use of a low-cost crystal (typically 16 MHz); (2)Multistandard true synchronous demodulation with active carrier regeneration; (3)Alignment-free; (4)16 MHz typical reference frequency input (from low IF tuner) or operating as crystal oscillator; (5)12-bit IF ADC on chip running with 54 MHz or 27 MHz; (6)Two 10-bit DACs on chip for CVBS and SSIF or audio; (7)Easy programming for I2C-bus; (8)Peak search tuner IF AGC for optimal adaptive drive of the IF ADC; (9)Switchable IF PLL and IF AGC loop bandwidths; (10)Precise AFC and lock detector; (11)Accurate group delay equalization for all standards; (12)Very robust IF demodulator coping with adverse field conditionsHigh flexibility due to various I2C-bus programming registers; (13)Video equalizer with eight settings; (14)Nyquist filter in video baseband; (15)Excellent video S/N (typically 62 dB weighted); (16)High selectivity video low-pass filter for all standards; (17)Low video into sound crosstalk; (18)Sound performance .

The absolute maximum ratings of the TDA8295HN/C1557 can be summarized as:(1)supply voltage (1.2 V): 1.08 to 1.32 V;(2)supply voltage (3.3 V): 2.97 to 3.63 V;(3)total supply current (1.2 V): 28 to 33 mA;(4)total supply current (3.3 V): 168 to 179 mA;(5)peak-to-peak input voltage: 1.8 to 2.2 V;(6)input voltage: -3 dBFS;(7)stop-band suppression: -60 dB;(8)group delay equalizer ripple time: 20 to 40 ns. If you want to know more information such as the electrical characteristics about the TDA8295HN/C1557, please download the datasheet in www.seekic.com or www.chinaicmart.com.