CAP 3001 A
3.1.2. Pin Descriptions
Pin 21 – VSUPA
Analog supply voltage; power for the analog circuitry of
the CAP 3001 A is supplied via this pin.
Pin1 – FMLEVEL
Input for the FM field strength information.
Pin 22 – LF
Left front speaker output.
Pins 2 to 6 – POT5/AVC, POT4, POT3, POT2,
POT1/MPX1
Pin 23 – LR
Inputs for a DC-control voltage (0V to V ). These pins
SUP
Left rear speaker output.
can also be used as digital outputs with an external pull-
up resistor; the function and selection is controlled via
IM/I C-bus.
2
Pin 24 – RR
Right rear speaker output.
POT1/MPX1alsoservesasasecondMPXinputforARI/
RDS.
POT5/AVCalsoservesasahighlysensitivemicrophone
input.
Pin 25 – RF
Right front speaker output.
Pin 26 – VREF2
Pin 7 – MPX0
Thispinservesasgroundconnectionforthesynthesizer
bias circuits and must be connected separately to the
ground point of the tuner.
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 27 – FMTUNOUT
Tuning voltage for the FM oscillator.
Pin 9 – AMR
Input for right channel baseband audio.
Pin 28 – TUNFB
Feedback input for tuning voltage amplifier.
Pin 10 – AUXR
Input for additional audio sources, right channel.
Pin 29 – AMTUNOUT
Tuning voltage for the AM oscillator.
Pin 11 – AUXL
Input for additional audio sources, left channel.
Pin 30 – VSUP2
Synthesizer supply voltage 2; power is supplied via this
pin for the synthesizer output circuitry of the
CAP 3001 A.
Pin 12 – TAPER
Input for right tape channel.
Pin 31 – VSUP1
Synthesizer supply voltage 1; power is supplied via this
pin for the synthesizer circuitry of the CAP 3001 A.
Pin 13 – TAPEL
Input for left tape channel.
Pin 32 – AMOSCREF
Capacitor pin for AMOSCIN reference voltage.
Pins 14 to 16 – PDMC3, PDMC2, PDMC1
Capacitor pins for the feedback loop of the high quality
pulse-density modulators.
Pin 33 – AMOSCIN
Input for the AM oscillator signal.
Pin 17 – BAGNDC
Buffered internal ground. This pin is the buffered internal
ground connection for the external PDM capacitors.
Pin 34 – FMOSCREF
Capacitor pin for FMOSCIN reference voltage.
Pin 18 – AGNDC
Pin 35 – FMOSCIN
Input for the FM oscillator signal.
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 36 – GNDS1
This pin serves as ground connection for the HF parts of
the synthesizer section.
Pin 19 – VREF1
This pin must be connected separately to the single
groundpoint. Itservesasgroundconnectionfortheana-
log bias circuits.
Pin 37 – TESTEN
Test mode enable
Pin 20 – GNDA
This pin serves as ground connection for the analog sig-
nals and NF parts of the synthesizer section.
Pin 38 – QX1
Crystal pin. This pin has to be connected with the crystal.
MICRONAS INTERMETALL
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MICRONAS [ MICRONAS ]
