• IC Block Diagrams
U1 |
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| RST STBY | AVDD1, 2 AVSS1, 2 | SPO2+ |
| SPO2- | DAO SPI1 | SPO1+ | SPO1- | VREF TI+ | TI- | TO | ADI |
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| 100 | 95 94 93 | 92 91 90 89 | 87 86 85 | 84 |
| 83 | 82 81 | 80 | 79 | 78 77 76 | 75 | 74 |
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| VRFF |
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| CONVERTER |
| GENERATOR | CONVERTER |
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| DPS |
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| • VOICE COMPRESSION/DECOMPRESSION |
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| CLOCK COUNTER |
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| • DTMF DETECTION |
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| • FULL DUPLEX HANDS FREE AND SO ON |
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| 73 | AVDD1, 2 |
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| 72 | AVSS1, 2 |
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| 71 | WAIT |
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| 70 | WR/PH0 |
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| 69 | RD/PH1 |
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| 68 | NM1 |
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| 67 | INT | |
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| DSP |
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| 8 BIT | 66 | |||
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| WE/PF0 | 3 |
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| MEMORY |
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| INTERFACE |
| CPU | 65 | ||||
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| CAS1/PF2 | 4 |
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| INTERFACE |
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| 64 |
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| . | PE (1:0) |
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| 63 | |
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| 62 | MREQ/PH2 |
| PC (3:0) | 5 |
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| 61 | IORQ/PH3 |
| 8 |
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| RAS/PF3 | 9 |
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| 60 |
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| OE/PF1 | 10 |
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| PD (3:0) | |
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| 57 | |||
| MCE | 11 |
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| A 16 | 12 |
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| HOST |
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| 56 | PB (7:0) | |
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13 |
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| 49 | |||||
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| SERIAL |
| I/O |
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| 14 |
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| CPU RAM |
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| INTERFACE |
| CONTROL | 48 | PA (3:0) | ||||
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| XIN | 15 |
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| CPU PROGRAM |
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| 45 | |||||
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| XOUT | 16 | CLOCK |
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| MEMORY |
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| 44 |
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| 17 | GENERATOR |
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| . | PA (7:4) | |||
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| SERIAL |
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| PVSS | 18 | + |
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| 43 |
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| INTERFACE |
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| PLLI | 19 | PLL |
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| ADDRESS DECODER |
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| PLLO | 20 |
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| PVDD | 21 |
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| 22 | 24 25 | 28 29 |
| 32 33 | 36 |
| 37, 38 | 39 40 41 42 |
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| PA (7:4) | ROUT |
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U2 | TC58A04F |
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| VCC |
| NC |
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| 28 | 27 – 15 |
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DECODER |
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| 4M BIT |
| CHARGE PUMP/ | ||
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| MEMORY |
| CONTROL GATE | ||||
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| CELL ARRAY |
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| DRIVE | |||
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| DATA LATCH |
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| INTERFACE/ |
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| CONTROL LOGIC |
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| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 – 14 |
| VSS | NC | NC | CS | SK | DI | DO | NC |
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U80 |
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|
| |||
1 |
| BIAS | 8 | V02 | ||
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|
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| 50k | 125k |
|
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V REF | 2 |
| #B | 7 | GND | |
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| 50k | |||
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| 4k |
|
+VIN | 3 |
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| 6 | V+ | |
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| 4k |
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4 |
| #A | 5 | V01 | ||
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| – 6 – |
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