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CAP3001A Datasheet(PDF) 21 Page - Micronas |
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CAP3001A Datasheet(HTML) 21 Page - Micronas |
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21 / 37 page  CAP 3001 A MICRONAS INTERMETALL 21 3.1.2. Pin Descriptions Pin1 – FMLEVEL Input for the FM field strength information. Pins 2 to 6 – POT5/AVC, POT4, POT3, POT2, POT1/MPX1 Inputs for a DC-control voltage (0V to VSUP). These pins can also be used as digital outputs with an external pull- up resistor; the function and selection is controlled via IM/I2C-bus. POT1/MPX1 also serves as a second MPX input for ARI/ RDS. POT5/AVC also serves as a highly sensitive microphone input. Pin 7 – MPX0 Input for the MPX signal in case of FM reception. Pin 8 – AML Input for left channel baseband audio; or for AM IF (450 to 460 kHz). Pin 9 – AMR Input for right channel baseband audio. Pin 10 – AUXR Input for additional audio sources, right channel. Pin 11 – AUXL Input for additional audio sources, left channel. Pin 12 – TAPER Input for right tape channel. Pin 13 – TAPEL Input for left tape channel. Pins 14 to 16 – PDMC3, PDMC2, PDMC1 Capacitor pins for the feedback loop of the high quality pulse-density modulators. Pin 17 – BAGNDC Buffered internal ground. This pin is the buffered internal ground connection for the external PDM capacitors. Pin 18 – AGNDC This pin serves as internal ground connection for the analog circuitry. It must be connected to analog ground with a 4.7 µF and a 100 nF capacitor in parallel. Pin 19 – VREF1 This pin must be connected separately to the single ground point. It serves as ground connection for the ana- log bias circuits. Pin 20 – GNDA This pin serves as ground connection for the analog sig- nals and NF parts of the synthesizer section. Pin 21 – VSUPA Analog supply voltage; power for the analog circuitry of the CAP 3001 A is supplied via this pin. Pin 22 – LF Left front speaker output. Pin 23 – LR Left rear speaker output. Pin 24 – RR Right rear speaker output. Pin 25 – RF Right front speaker output. Pin 26 – VREF2 This pin serves as ground connection for the synthesizer bias circuits and must be connected separately to the ground point of the tuner. Pin 27 – FMTUNOUT Tuning voltage for the FM oscillator. Pin 28 – TUNFB Feedback input for tuning voltage amplifier. Pin 29 – AMTUNOUT Tuning voltage for the AM oscillator. Pin 30 – VSUP2 Synthesizer supply voltage 2; power is supplied via this pin for the synthesizer output circuitry of the CAP 3001 A. Pin 31 – VSUP1 Synthesizer supply voltage 1; power is supplied via this pin for the synthesizer circuitry of the CAP 3001 A. Pin 32 – AMOSCREF Capacitor pin for AMOSCIN reference voltage. Pin 33 – AMOSCIN Input for the AM oscillator signal. Pin 34 – FMOSCREF Capacitor pin for FMOSCIN reference voltage. Pin 35 – FMOSCIN Input for the FM oscillator signal. Pin 36 – GNDS1 This pin serves as ground connection for the HF parts of the synthesizer section. Pin 37 – TESTEN Test mode enable Pin 38 – QX1 Crystal pin. This pin has to be connected with the crystal. |
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