Pioneer CLD-D503 Service Manual page 13

CLD-D503, CLD-D57(
i CXD2023Q (MAIN ASSY 1C701)
@ 3Line digital comb filter
Digital input (MSB) (connected to DVss or DVpp when not used)
@ Pin Function
-/5
Digital input (connected to DVss or DVpp when not used)
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Input switching, switches input of comb filter.
H: digital input
L: analog input —
Clock amplifier input
(Inputs clock that has a DC cut at capacitor by 0.8Vp-p or more)
Digital ground
Digital power supply (SV)
Clock amplifier output
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Clock input for A/D converter (inputs same clock as MCK).
Normally connected to pin 14 clock amplifier output.
Clamp pulse input for A/D converter.
Clamps signal voltage between low blocks of clamp pulse
(connected to DVpp when clamp function is "OFF").
H: clamp function becomes "OFF", has normal A/D converter function only.
L: clamp function operates
CPON
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Digital ground for A/D converter
Voltage integration pin for clamp control, connected to.about a 0.01 WF capacitor
(connected to ground if clamp is not used).
Clamp reference voltage input. Equalizes reference voltage and input voltage of
clamp block (connected to ground if clamp is not used).
Reference voltage (bottom) standard value (0.5V)
Guard ring (connected to analog ground)
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