| SYMBOL | SOT205AG | SOT232A | DESCRIPTION |
| DOBM | 1 | 28 | digital audio interface output |
| VSs | 2 | 29 | ground connection for the digital section |
| nC | 3 | | not connected |
| XIN | 4 | 30 | crystal input at 256fs (8.192 MHz) |
| XOUT | 5 | 31 | crystal output at 256fs (8.192 MHz) |
| DATA | 6 | 32 | serial data input at 728 kbits/s from DQPSK demodulator |
| PCLK | 7 | 1 | output clock at 728 kHz to DQPSK demodulator |
| RESET | 8 | 2 | active LOW reset; used to set the device in a valid initial condition |
| SCL | 9 | 3 | clock input for I2C control bus |
| SDA | 10 | 4 | data port for I2C control bus, input/open drain output |
| PORT2 | 11 | 5 | output mirroring the I2C control register bit PORT2 |
| nC | 12 | | not connected |
| ADSEL | 13 | 6 | 12C_bus slave address selection input; allows selection of one of two separate slave addresses, defaults to logic 1 |
| MUTE | 14 | 7 | active LOW mute input; when set LOW, sets the digital data to zero and either silences the output or switches it to analog FM, depending on the status of MUTEDEF (control bit in the I2C register) and RSSF; overridden by automute (if automute is used, then MUTE is automatically pulled LOW) |
| nC | 15 10 17 | | not connected |
| VDDAR | 18 | 8 | analog supply voltage for the right audio channel |
| VSSAR | 19 | 9 | analog ground connection for the right audio channel |
| VRO | 20 | 10 | internal reference voltage buffer output |
| VRC | 21 | 11 | internal reference voltage buffer HIGH impedance node |
| nC | 22 | | not connected |
| OPR | 23 | 12 | analog output from the right audio channel |
| EXTR | 24 | 13 | external analog input to the right audio channel |
| FMR | 25 | 14 | FM sound input to the right audio channel |
| INTR | 26 | 15 | integrator output from the right audio channel |
| CDR | 27 | 16 | integrator connection to an external damping capacitor |
| nC | 28 | | not connected |
| VREF | 29 | 17 | reference voltage input; 2.5 V (typical) |
| VDAC | 30 | 18 | quiet Vss to DACs |
| CDL | 31 | 19 | integrator connection to an external damping capacitor |
| INTL | 32 | 20 | integrator output from the left audio channel |
| FML | 33 | 21 | FM sound input to the left audio channel |
| EXTL | 34 | 22 | external analog input to the left audio channel |
| OPL | 35 | 23 | analog output from the left audio channel |
| nC | 36 | | not connected |
| VSSAL | 37 | 24 | analog ground connection for the left audio channel |
| VDDAL | 38 | 25 | analog supply voltage for the left audio channel |
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