4.16TC94A14FA (IC1621) : DSP & DAC
• Terminal layout & block daiagram
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50 |
| Clock |
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| 31 | |
| generator |
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51 |
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| 30 |
LPF |
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52 |
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| Servo |
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| A/D |
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| DAC |
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| control |
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54 |
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| 27 |
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55 |
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| Address |
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| ROM | Digital equalizer |
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| circuit |
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| automatic |
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| RAM | adjustment circuit |
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57 |
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| Correction circuit |
| RAM |
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| Data | 24 | |
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| CLV servo |
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| slicer |
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| Synchronous |
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| guarantee |
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60 |
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| EFM |
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| VCO |
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| decoder |
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| Audio out |
| Digital |
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| output |
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controller |
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| Sub code |
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| PLL |
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| interface |
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| decoder |
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| TMAX |
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64 |
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1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
• Pin function
Pin | Symbol | I/O | Descroption | |
No | ||||
1 | BCK | O | Bit clock output pin.32fs48fsor 64fs selectable by command. | |
2 | LRCK | O | L/R channel clock output pin."L" for L channel and "H" for R channel. | |
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| Output polarity can be inverted by command. | |
3 | AOUT | O | Audio data output pin. | |
4 | DOUT | O | Digital data output pin.Outputs up to | |
5 | IPF | O | Correction flag output pin. When set to "H" AOUT output cannot be corrected by C2 correction processing. | |
6 | VDD3 | - | Digital 3.3V power supply voltage pin. | |
7 | VSS3 | - | Digital GND pin. | |
8 | SBOK | O | Subcode Q data CRCC result output pin. "H" level when result is OK. | |
9 | CLCK | O | Subcode | |
10 | DATA | O | Subcode | |
11 | SFSY | O | Playback frame sync signal output pin. | |
12 | SBSY | O | Subcode block sync signal output pin. "H" level at S1 when subcode sync is detected. | |
13 | HSO | I/O | ||
14 | UHSO | |||
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15 | PVDD3 | - | ||
16 | PDO | O | EFM and PLCK phase difference signal output pin. |