Sharp SM-A75H(BK) Service Manual page 20

SM-A75H/E
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A/D Converter (TD6704P)
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c|o
o
Xn Oscillator terminal, negative input
Xo Oscillator terminal, output
Ground terminal of TTL logic part
Ground terminal of ECL logic part
Not used
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oy 2.
12
Z'10 O;2
oO m
| 13 |
| 14 | Veea
| 15 Ji
SS tst—~—SY Current ratio adjusting terminal
| 16 |Vea
=—tsti<'CsSC YI Negative power supply terminal of analog part
Lch integral amplifier output terminal
SINI
Lch analog signal input terminal
|
GNDA
Analog part ground terminal
-
AINL
Lch integral amplifier input terminal
GNDS
Analog signal ground terminal
22
Duplicate integration of 1M = 1/32 Iref is performed, assuming that current to
be applied to integral reference power input terminal (ground terminal) Iref is
lref.
=|
23 VT
Comparator reference voltage input terminal
Rch integral amplifier input terminal
=
Analog part ground terminal
=
Rch analog signal input terminal
J
Aoutr
Rch integrator output terminal
Analog part positive power source terminal
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