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TDA 4470<br />
Features:<br />
n 5 V supply voltage; low power consumption<br />
n Aktive carrier generation by FPLL principle (frequency - phase - locked - loop) for true synchronous demodulation.<br />
n Very linear video demodulation, good pulse response and execellent intermodulation figures.<br />
n VCO circuit is operating on picture carrier frequency, the VCO frequency is switchable for L’ - mode.<br />
n Alignmend - free AFC without external reference circuit, polarity of the AFC curve is switchable.<br />
n VIF-AGC for negative modulated signals (peak sync detection) and for posidive modulation (peak white / black level detector).<br />
n Tuner AGC with adjustable take over point<br />
n Alignment-free quasi parallel sound ( QPS ) mixer for FM / NICAM sound IF signals.<br />
n Intercarrier output signal is gain controlled (necessary for digital sound processing).<br />
n Complete alignment - free AM demodulator with gain controlled AF output.<br />
n Separate SIF - AGC with avarage detection.<br />
n Two independent SIF inputs.<br />
n Parallel operation of the AM demodulator and QPS mixer (for NICAM - L stereo sound)<br />
n Package and relevant pinning is compatible with the single standard version TDA4472, simplifies the design<br />
of an univeral IF module<br />
PINNING<br />
1. SIF1 input (symmmetrical)<br />
2. SIF1 input (symmmetrical)<br />
3. Input selector switch<br />
4. Ground<br />
5. SIF - AGC (time constant)<br />
6. VIF input (symmetrical)<br />
7. VIF input (symmetrical)<br />
8. VIF AGC (time constant)<br />
9. Ground<br />
10. Take over point, tuner AGC<br />
11. Tuner AGC output current<br />
12. Video ouput<br />
13. Standart switch<br />
14. L’ switch<br />
15. Black level capacitor<br />
16. Ground<br />
17. Internal reference voltage<br />
18. Loop filter<br />
19. AFC switch<br />
20. VCO circuit<br />
21. VCO circuit<br />
22. AFC output<br />
23. Supply voltage<br />
24. Intercarrier output<br />
25. AF output - AM sound<br />
26. Offset compensation<br />
27. SIF 2 input (symmetrical)<br />
28. SIF 2 input (symmetrical)<br />
S-24C08A<br />
General description:<br />
The S-24C08A is a series of 2-wire , low power 8Kbit EEPROM with a wide operating range. It is organized as 1K-word<br />
X 8-bit. It is capable of page write and sequential read.<br />
Features:<br />
n Power consumption<br />
- standby : 1.0 uA Max. (Vcc = 5.5 V)<br />
- Operating : 0.8 mA Max. (Vcc = 5.5 V f=400kHz)<br />
0.4 mA Max. (Vcc = 4.5 V f=100kHz)<br />
n Operating voltage range<br />
- Write : 2.5 V to 5.5 V<br />
- Read : 1.8 V to 5.5 V<br />
n Page write<br />
- 16 bytes<br />
n Sequential read capable<br />
n Endurance : 100.000 cycles / word<br />
n Data retention : 10 years<br />
n Write Protection<br />
n 8 K bit<br />
18
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