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PIN NAME
FUNCTION
INTERFACE
1
IF VCC
A Vcc terminal for the IF circuit.
Supply 5V.
2
RIPPLE
A terminal should be connected to an internal
FILTER
bias filler. Put a capacilor.
3
SIF OUT
An output terminal for a 2’nd SIF signal, that
is mixed down by a regenerated carrier.
The SIF frequencies are able to convert into
only 6.5MHz, in order to eliminate SIF BPFs
to single 6.5MHz.
4
AUDIO OUT
An output terminal for audio signal.
FM Det.signal, inputted to pin53, is output.
An internal audio attenator controls the output
levels.
5
IF GND
The GND terminal for IF circuit.
6
IF IN
Input terminals for IF signals. Pin 6 and 7 are
7
IF IN
the both input poles of a differential amplifier.
The normal input level is 90dB( V )( Pin6-7),
input impedance is 1.5 k ohms.
TERMINAL INTERFACE
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IC DESCRIPTION
APPENDIX
All manuals and user guides at all-guides.com
Содержание DTD-14D3 ME
Страница 5: ...4 CIRCUIT BLOCK DIAGRAM CAUTION All manuals and user guides at all guides com...
Страница 12: ...SCHEMATIC DIAGRAM 11 All manuals and user guides at all guides com...
Страница 13: ...PRINTED CIRCUIT BOARD PCB MAIN 12 All manuals and user guides at all guides com...
Страница 14: ...13 MECHANICAL EXPLODED VIEW AND PARTS LIST CAUTION 1 DTD 21D7 All manuals and user guides at all guides com...
Страница 15: ...14 MECHANICAL EXPLODED VIEW AND PARTS LIST 2 DTD 21D6 All manuals and user guides at all guides com...
Страница 17: ...16 MECHANICAL EXPLODED VIEW AND PARTS LIST 4 DTD 21D3 All manuals and user guides at all guides com...
Страница 18: ...17 MECHANICAL EXPLODED VIEW AND PARTS LIST 5 DTD 21U6 All manuals and user guides at all guides com...
Страница 19: ...18 MECHANICAL EXPLODED VIEW AND PARTS LIST 6 DTD 21U8 All manuals and user guides at all guides com...
Страница 48: ...17 IC DESCRIPTION SDA 9488X PIP IC Block Diagram APPENDIX All manuals and user guides at all guides com...