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TDA9143 датащи(PDF) 16 Page - NXP Semiconductors |
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TDA9143 датащи(HTML) 16 Page - NXP Semiconductors |
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16 / 40 page ![]() 1996 Jan 17 16 Philips Semiconductors Preliminary specification I2C-bus controlled, alignment-free PAL/NTSC/SECAM decoder/sync processor TDA9143 OUTPUT SIGNALS Table 28 Power-on reset Table 29 Field frequency indication Table 30 Input switch mode Table 31 ϕ 1 lock indication Table 32 Input value I/O port Table 33 Standard read-out POR CONDITION 0 normal mode 1 power-down mode FSI CONDITION 050 Hz 160 Hz YC CONDITION 0 CVBS mode 1 Y/C mode SL CONDITION 0 not locked 1 locked IP LEVEL 0 LOW 1 HIGH SAK SBK FRQ STANDARD 0 0 0 PAL second crystal 0 0 1 PAL reference crystal 0 1 0 NTSC second crystal 0 1 1 NTSC reference crystal 1 0 0 illegal forced mode 1 0 1 SECAM reference crystal 11 − colour off Table 34 Fast blanking active Table 35 Norm/no_norm indication in vertical divider system Table 36 Signal-to-noise ratio Table 37 Crystal indication read-out FBA CONDITION 0 no fast blanking detected 1 fast blanking detected NRM CONDITION 0 no_norm or near_norm 1 norm SNR CONDITION 0 S/N > 20 dB 1 S/N < 20 dB SXA SXB CRYSTAL 00 2 × 3.6 MHz 01 1 × 3.6 MHz 10 1 × 4.4 MHz 11 1 × 3.6 MHz and 1 × 4.4 MHz |
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