REG300
+5VD
+3V3
C302
100N | |
16V |
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0603 |
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DGND
C300
27P |
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100V | X300 |
0805 | |
C301 | 27MHz |
| HC49 |
DGND 27P
100V | FSEL0 | |
0805 | ||
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| CLOCK GENERATOR |
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| +3V3PLL |
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| CLOCK DIVIDER |
C342 | C303 | C306 | C311 | C308 |
100N | 100UF | 100N | 100N | 100N |
16V | 10V | 16V | 16V | 16V |
0603 | YXF | 0603 | 0603 | 0603 |
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| +3V3D |
DGND
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| P356 |
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| MUTE* |
| P350 | |||||
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| 27MHz |
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| 10 |
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| IC306B |
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| P357 |
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| 1 |
| 12 |
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| 5 |
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| R300 |
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| R308 |
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| R309 | |||||||||||||||||
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| P343 |
| CLK27M_VADDIS |
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| 12 | D |
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| SD |
| Q | 9 | P349 |
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| 9 |
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| 8 | P358 |
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| VDD1 | VDD3 | VDD2 |
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| P345 |
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| 11 | CLK |
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| 10 | IC307C |
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| 75R | 0603 |
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| 100R | 0603 |
| 47R | 0603 | ||||||||||||||||||||||||||||||||
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| P348 | R323 |
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| 74LVC125AD | ||||||||||||||||||
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| 7 | XTI |
| IC300 |
| MO1 | 3 |
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| RD |
| Q | 8 |
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| 8 |
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| P341 |
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| XTO |
| SM8707E |
| MO2 |
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| R301 |
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| 13 |
| 74LVC74AD 100R | 0603 |
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| AO1 | 9 |
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| P340 |
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P302 | 14 |
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| FSEL |
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| AO2 |
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| 100R | 0603 |
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| 13 |
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| P342 |
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| P359 |
| R322 | ||||
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| SO1 |
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| R306 |
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| 15 |
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| P344 |
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| 12 |
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| 11 |
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| SO2 |
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| 47R | 0603 | ||
| 16 |
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| IC307D |
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| NC |
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| 100R |
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| VSS1 | VSS3 | VSS2 |
| 0603 |
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| FSEL1 |
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| P346 |
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| 1 |
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| 4 |
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| P347 |
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| 13 | 74LVC125AD |
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| 2 |
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| ENABLE_AV |
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| Ensures audio clock can be trurned off in standby mode |
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| 2 |
| 11 |
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| 6 |
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| IC303A |
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| SN74AHC1G00DBVR |
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| DGND |
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AUDIO CLOCK BUFFER
| 1 | IC301A |
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| OE | Y0 | 18 | P318 | |
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DGND | 2 |
| 16 | P319 | |
A0 | Y1 | ||||
| 4 | A1 | Y2 | 14 | P320 |
P360 | 6 | A2 | Y3 | 12 |
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| 8 |
| P323 | ||
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| A3 |
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| 74LVC244APW |
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| 19 |
| IC301B |
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| OE | Y0 | 3 |
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| P300 | |||
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| 17 | A0 | Y1 | 5 |
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| 15 | 7 |
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| 13 | A1 | Y2 | 9 |
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| 11 | A2 | Y3 |
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| A3 |
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| P321 | |||||
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| 74LVC244APW |
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DGND |
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Spare clock buffer used to buffer mute control
R302 |
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| P325 | MCLK_DAC0 | ||||
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75R | 0603 |
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R303 |
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| P326 | MCLK_DAC1 | ||||
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75R | 0603 |
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R304 |
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| P327 | MCLK_DAC2 | ||||
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75R | 0603 |
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R305 |
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| MUTE_BUF* | ||||
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1K8 | 0603 |
| Base resistor for TR401 here to reduce noise on MUTE_BUF* | |||||
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R310 |
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| P301 | MCLK_VADDIS | ||||
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75R | 0603 |
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R307 |
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| P329 | MCLK_HDMI | ||||
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75R | 0603 |
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Audio master clock frequency for different sample rates
Fs | Master clock frequency |
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FSEL1..0 |
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44.1kHz | 11.2896MHz | (256 x Fs) | 00 |
48kHz | 12.288MHz | (256 x Fs) | 01 |
88.2kHz | 22.5792MHz | (256 x Fs) | 10 |
96kHz | 24.576MHz | (256 x Fs) | 11 |
176.4kHz | 22.5792MHz | (128 x Fs) | 10 |
192kHz | 24.576MHz | (128 x Fs) | 11 |
PSU CLOCK DIVIDER
ALRCLK
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| I2S BUFFER |
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| RP301A 8 |
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| P311 | 1 |
| P314 | |||||
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| ALRCLK_DAC0 |
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| IC302A |
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| 100R | 1206 |
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| 1 |
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| OE |
| 18 |
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| 2 | RP301B 7 |
| P315 | ||||||
P334 |
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| ALRCLK_DAC1 |
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DGND |
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| 16 |
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| P312 |
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| 100R | 1206 |
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| 4 | A0 | Y1 | 14 |
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| P313 |
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| 6 | A1 | Y2 | 12 |
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| 8 | A2 | Y3 |
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| 3 | RP301C 6 |
| P316 | |||||
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| A3 |
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| ALRCLK_DAC2 |
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| DGND 74LVC244APW |
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| 100R | 1206 |
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P351
+3V3D
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| 4 |
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| IC304A | ||
2 |
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| 5 |
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D | SD |
| Q |
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3 |
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CLK |
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| 6 |
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| RD |
| Q |
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+3V3D | 1 |
| 74LVC74AD | ||||||||
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| PSUFS0 | ||||
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| PSUFS1 | ||||
P352
P353 | +3V3D |
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| 10 |
| IC304B |
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12 | D | SD | Q | 9 |
11 | CLK |
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| RD | Q | 8 |
+3V3D | 13 | 74LVC74AD | ||
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| P362 | |
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| P363 | |
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| IC305A |
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| 4 | I0 |
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| 3 |
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| P354 |
| 2 | I1 |
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| I2 |
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| 1 | I3 |
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| 5 |
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| R311 |
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| 15 |
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| P355 |
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| I4 | Y |
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| PSUCLK | |
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| 14 | I5 |
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| 13 |
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| 6 |
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| 100R | 0603 | ||||||
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| 12 | I6 | Y |
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| PSUFS0 |
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| 11 | I7 |
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| S0 |
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| PSUFS1 |
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| 10 |
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| 9 | S1 |
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| 7 | S2 |
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| E |
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| 74HC151D |
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| DGND |
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| |||||
PSUCLK SHOULD BE 44.1kHz OR 48kHz
Fs | PSUFS1 | PSUFS0 | PSUCLK |
44.1kHz | 0 | 0 | 44.1kHz |
48kHz | 0 | 0 | 48kHz |
88.2kHz | 0 | 1 | 44.1kHz |
96kHz | 0 | 1 | 48kHz |
176.4kHz | 1 | 0 | 44.1kHz |
192kHz | 1 | 0 | 48kHz |
others | 1 | 1 | OFF |
ABCLK
|
| 19 | IC302B |
|
|
|
| OE | Y0 | 3 | |
P335 | DGND | 17 |
| ||
| A0 | Y1 | 5 | ||
|
| 15 | 7 | ||
|
| 13 | A1 | Y2 | 9 |
|
| 11 | A2 | Y3 |
|
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| A3 |
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| |
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| 74LVC244APW |
| |
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| |
P305 | 1 | RP300A 8 | |
| 100R | 1206 | |
P306 | 2 | RP300B 7 | |
| 100R | 1206 | |
P307 | 3 | RP300C 6 | |
| 100R | 1206 | |
P303 | R313 |
| 56R |
| 0W125 0805 |
P308
P309
P310
P317
ABCLK_DAC0
ABCLK_DAC1
ABCLK_DAC2
ABCLK_HDMI
SPDIF COAX OUTPUT
| IC308B |
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| |||||
5 |
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| 6 |
| P322 | R315 | |||||
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4 |
| 74LVC125AD | 750R | 0603 | |||||||
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DGND |
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| ||||||
+3V3D
D300
ADAT0
ADAT1
ADAT2
|
| 4 |
| IC306A |
2 | D | SD | Q | 5 |
3 | CLK |
|
| |
|
| RD | Q | 6 |
|
| 1 | 74LVC74AD | |
|
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| ||
DGND |
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| 2 |
| 3 | 5 |
| 1 | IC307A | 4 | |
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| 74LVC125AD | ||
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| ||
DGND
RP302A |
P366 | 1 | 8 |
| 100R | 1206 |
P372ADAT_DAC0
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| IC308C |
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| 9 | 8 |
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| P331 | R316 |
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BAT54S
DV79, DV75 |
| 1 |
P361 | 2 |
P364 | 4 |
| 6 |
| 8 |
| DGND |
| 19 |
IC309A |
|
|
|
OE | Y0 | 18 |
|
| 16 |
| |
A0 | Y1 | 14 |
|
A1 | Y2 | 12 |
|
A2 | Y3 |
|
|
A3 |
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| |
74LVC244APW |
|
| |
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| |
IC309B |
|
|
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| P371 | 3 |
| RP302C | 6 |
|
|
|
| ||||
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|
|
| 100R | 1206 |
|
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| |||||
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SPDIF
P374ADAT_DAC1
| 10 | 74LVC125AD | 750R | 0603 | |||
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| DGND |
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| IC308D |
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12 |
| 11 | P332 | R317 | |||
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| 13 | 74LVC125AD | 750R | 0603 | |||
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DGND
DGND
P333
R318 | R319 | C321 |
120R | 1K0 | 47P |
0W125 | 0W125 | 100V |
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| C315 |
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| 100N 0805 | 50V | |
C343 | P337 |
| TX301 |
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| 1 | 5 | ||
100N | 50V |
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0805 |
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P304
3 2
4 1
SKT300
KUNMING | |
GOLD | |
SPDIF_OUT |
|
L301 |
|
1000R @ 100MHz | SCRN |
SPDIF_GND | |
17 |
OE | 3 |
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| Y0 | 5 |
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P368
R312
P376ADAT_DAC2
0805 | 0805 | 0805 |
|
| NF |
DGND PCB Mount SMT
DLW31S |
P365 |
15 |
13 |
11 |
A0 | Y1 | 7 |
A1 | Y2 | 9 |
A2 | Y3 |
|
100R 0603
DGND
DV29 7A29398
P336
C322 
C323
DGND |
A3 |
74LVC244APW
|
| IC308A |
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P324 | 2 | 3 |
| P328 | R314 |
| P330 | ||||
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| 1 | 74LVC125AD | 100R | 0603 | ||||||
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| DGND |
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| R321 |
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| 75R | 0603 | |||
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| SPDIF_OP |
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OPTICAL OUT
+5VD
2 | TX300 |
|
VCC | C314 | |
| ||
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1 I/P |
| 100N |
GND |
| |
| 0805 | |
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| 50V |
3 |
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C304
100UF 10V YXF
C316 | R320 |
NF | NF |
100N | 0R0 |
50V | 0W125 |
0805 | 0805 |
DGND
100P 
10N
100V 50V
0805 0603 NF 
EMC_GND
DGND
6
IC307B
74LVC125AD+3V3D
C325 | C326 | C327 | C328 | C329 | C330 | C331 | C332 | C333 | C334 | C335 | C336 |
| C337 |
| C338 |
| C339 |
| C340 |
| C341 |
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100N | 100N | 100N | 100N | 100N | 100N | 100N | 100N | 100N | 100N | 100N | 100N | 100N | 100N | 100N | 100N | 100N |
16V | 16V | 16V | 16V | 16V | 16V | 16V | 16V | 16V | 16V | 16V | 16V | 16V | 16V | 16V | 16V | 16V |
0603 | 0603 | 0603 | 0603 | 0603 | 0603 | 0603 | 0603 | 0603 | 0603 | 0603 | 0603 | 0603 | 0603 | 0603 | 0603 | 0603 |
DGND
+3V3D
|
| IC307E | 14 |
| IC301C | 20 |
| IC302C | 20 |
| IC309C | 20 |
| IC304C | 14 |
| IC305B | 16 |
|
| 5 |
| IC308E | 14 |
| IC306C | 14 |
|
|
| VCC |
| VCC |
| VCC |
| VCC |
| VCC |
| VCC |
| VCC |
| VCC |
| VCC |
| |||||||||
C305 | C307 |
|
| C317 |
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| C309 |
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| C310 |
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| C318 |
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| C312 |
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| C313 |
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| C319 |
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| C320 |
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| C324 |
100UF | 100UF |
|
| 100N |
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| 100N |
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| 100N |
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| 100N |
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| 100N |
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| 100N |
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| 100N |
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| 100N |
|
| 100N |
10V | 10V | GND | 7 | 16V | GND | 10 | 16V | GND | 10 | 16V | GND | 10 | 16V | GND | 7 | 16V | GND | 8 | 16V | GND | 3 | 16V | GND | 7 | 16V | GND | 7 | 16V |
YXF | YXF |
| 0603 |
| 0603 |
| 0603 |
| 0603 |
| 0603 |
| 0603 |
| 0603 |
| 0603 |
| 0603 | |||||||||
|
| 74LVC125AD |
| 74LVC244APW |
| 74LVC244APW |
| 74LVC244APW |
| 74LVC74AD |
| 74HC151D |
| IC303B |
|
| 74LVC125AD |
| 74LVC74AD |
| ||||||||
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| SN74AHC1G00DBVR |
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| |
DGND
ITEM300 | 1 |
| E828AP | Pad Damping 7.5x6x3MM Rubber |
|
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| Fit on one side of X300 (see assembly drawing) |
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|
DRAWING TITLE DV29 MAIN CLOCKS & SPDIF |
|
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Filename: | L971C3.Sch |
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| |||
Notes: |
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A & R Cambridge Ltd. |
|
|
| 04_E121 | PG |
| Production release |
|
|
| 1.0 | ||||
Pembroke Avenue |
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| ||
|
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| ECO No. | INITIALS | DATE |
| DESCRIPTION OF CHANGE |
|
|
| ISSUE | ||||
Waterbeach |
|
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| ||||||
Cambridge CB5 9QR | Contact Engineer: Peter Gaggs | Contact Tel: (01223) 203270 | Printed: |
| Sheet 3 of 11 | A2 | DRAWING NO. | L971C3 | |||||||
