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TDA9144 Datasheet(PDF) 20 Page - NXP Semiconductors |
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TDA9144 Datasheet(HTML) 20 Page - NXP Semiconductors |
20 / 44 page 1996 Jan 17 20 Philips Semiconductors Preliminary specification I2C-bus controlled, alignment-free PAL/NTSC/SECAM decoder/sync processor with PALplus helper demodulator TDA9144 Table 30 Enable MACROVISION gating Table 31 Luminance delay control OUTPUT SIGNALS Table 32 Power-on reset Table 33 Field frequency indication Table 34 Input switch mode Table 35 ϕ1 lock indication Table 36 Input value I/O port EMG CONDITION 0 disable gating 1 enable gating YD3 to YD0 CONDITION 0000 −280 ns 1111 +160 ns 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 Table 37 Standard read-out Table 38 Fast blanking active Table 39 Norm/no_norm indication in vertical divider system Table 40 Signal-to-noise ratio Table 41 Crystal indication read-out 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 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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