•IC Block Diagrams IC301
PREOR | PRENR PRER |
21 | 20 19 |
MICR 22 
MVDD 23
MVSS 24
MVCM 25 
VCOM
MRF 26 
MIC POWER
MPWR 27 
SUPPLY
LIN 28
| VCOM |
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1 | 2 | 3 |
RIN | VCOM | AVDD |
PREL | PRENL | PREOL | MICL |
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18 17 | 16 | 15 |
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| RESET | 14 | PDN |
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| CONTROL | 13 | CSN |
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| REGISTER | 12 | CCLK |
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| INTERFACE | 11 | CDTI |
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| 10 | LRCK |
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| 9 | MCLK |
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| 8 | BCLK |
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| A/D | AUDIO |
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| INTERFACE |
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| CONVERTER |
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| CONTROLLER |
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4 | 5 | 6 |
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AVSS | DVSS | DVDD |
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| SDTO |
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IC351 | NJU8716AV (TE2) |
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VREGO | 1 |
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CFB | 2 |
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VG | 3 |
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VREF | 4 |
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| 16 | VREG | |
VSS | 5 | LOW VOLTAGE |
| LOW VOLTAGE |
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| REGULATOR |
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| DETECTOR VDD | DETECTOR VRGO |
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MCK | 6 | LEVEL SHIFTER |
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VDD | 7 |
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| 15 | VDD2 | |
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| HEADPHONE |
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| PRE | AMP | OUT2 | |
IN2 | 8 | LEVEL SHIFTER | DRIVER | 14 | ||
13 | VSSO | |||||
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| LEVEL SHIFTER | PRE | 12 | VSSO | |
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| 11 | OUT1 | |||
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| DRIVER | |||
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| HEADPHONE |
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| AMP | VDD1 | |
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| 10 | ||
LEVEL SHIFTER 
9 IN1
IC302 XC6219B212MR IC471 XC6219B242MR
VCC
IC401 | MM1690NCBE |
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| RS | I CTL3 | A/D | GND | I CTL1 | PGND | I SEL AD SEL |
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| 24 | 23 | 22 | 21 | 20 | 19 | 18 17 |
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BAT– | 25 |
| A/D |
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| CONVERTER |
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RF1 | 26 |
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| 16 |
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| TYPE2 | |
IAMP_CAL | 27 |
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| 15 | CFB |
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AMP_SEL | 28 |
| + | – |
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| 14 | IAMP_CTL |
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| + | – |
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| 13 | A7CAL_SW |
VIN 1
5 VOUT
+ |
| CURRENT |
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– |
| LIMIT |
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VSS 2 | VOLTAGE | |
REFERENCE | ||
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| VCC |
ON/OFF
CE 34 NC CONTROL
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| + | – | VREF |
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I_CTL2 | 29 |
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| VREF |
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CHG_SW1 | 30 |
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BAT+ | 31 |
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| 12 | IN1– |
VO | 32 |
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| 11 | TYPE1 |
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| TIME |
| OSC |
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| 10 | WDT |
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| DIVIDER |
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| SWITCHING |
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| SWITCHING | DET |
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| COMPARATOR |
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| CHARGE | CIRCUIT |
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| BLOCK |
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| CONTROL |
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| CONTROL |
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| RECEIVER |
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| ON/OFF |
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| CHARGE CONTROL |
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| ON/OFF |
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| ERROR LED | 9 | LED_CTL |
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| + |
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| CONTROL | ||
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| VREF |
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| CHARGE SWITCH |
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| CONTROL |
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| CONTROL |
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| 1 | 2 | 3 | 4 |
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| 5 | 6 | 7 |
| 8 |
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| VI2 | VG | PWT | VI CTL |
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| CHG SW2 | VI | CHG CTL |
| PWR WAKE |
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36 36