• Pin function
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1 | VCC | - | 3.3V power supply pin |
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2 | FNI | I |
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3 | FPI | I |
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4 | TPI | I |
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5 | TNI | I |
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6 | MDI | I | Monitor photo diode amp input pin |
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7 | LDO | O | Laser diode amp output pin |
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8 | SEL | I | APC circuit ON/OFF control signal, laser diode (LDO) control signal input | |||||||||||
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| or bottom/peak detection frequency change pin. |
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| SEL |
| APC |
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| LDO |
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| GND |
| OFF |
| Connected VCC through 1k resistor |
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| Hiz |
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| Control signal output |
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| VCC |
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| Control signal output |
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9 | TEB | I | Tracking error balance adjustment signal input pin |
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| Adjusts TE signal balance by eliminating carrier component from PWM signal | |||||||||||
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| PWM carrier = 88.2kHz) output from TC94A14F/FA | |||||||||||
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| TEBC pin using |
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| TEBC input voltage:GND~VCC |
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10 | TEN | I | Tracking error signal generation amp | |||||||||||
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11 | TEO | O | Tracking error signal generation amp output pin. |
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| Combining TEO signal RFRP signal with TC94A14F/FA configures tracking search system. | |||||||||||
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12 | RFDC | O | RF signal peak detection output pin |
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13 | GVSW | I | AGC/FE/TE amp gain change pin |
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| GVSW |
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| GND |
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| Hiz |
| Normal |
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| VCC |
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14 | VRO | O | Reference voltage (VRO) output pin |
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| *VRO=1/2VCC When VCC=3.3V |
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15 | FEO | O | Focus error signal generation amp output pin |
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16 | FEN | I | Focus error signal generation amp | |||||||||||
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17 | RFRP | O | Signal amp output pin for track count |
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| Combining RFRP signal and TEO signal with TC94A14F/FA configures tracking search system. | |||||||||||
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18 | REIS | I |
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19 | RFGO | O | RF signal amplitude adjustment amp output pin |
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20 | RFGC | I | RF amplitude adjustment control signal input pin |
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| Adjusts RF signal amplitude by eliminating carrier component from PWM signal | |||||||||||
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| PWM carrier=88.2kHz)output fromTC94A14F/14FA *RFGC pin using | |||||||||||
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| *RFGC input voltage:GND~VCC |
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21 | AGCIN | I | RF signal amplitude adjustment amp input pin |
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22 | RFO | O | RF signal generation amp output pin |
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23 | RFI | I | RF signal generation amp input pin |
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24 | GND | - | GND pin |
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