JVC HX-Z9V - Page 46

1-46 (No.22041)
4.6 BU9253AS (IC901) : LPF & Echo mix.
• Pin layout & block diagram
• Pin function
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10
OSC
COUNTER
A/D
SRAM
D/A
MIX
- +
- +
GND
ECHO VR
BIAS
DAINT IN
DAINT OUT
DALPF IN
DALPF OUT
MIX OUT
CR
MUTE
VCC
ADINT IN
ADINT OUT
ADLPF OU
T
ADLPF IN
MIX IN
Pin No.
Symbol I/O Description
1 GND - Connect GND
2 ECHO VR I Echo level control
3 - Non connect
4 BIAS - Analog part DC bias
5 DAINT IN I DA side integrator input
6 DAINT OUT O DA side integrator output
7 DALPF IN I DA side LPF input
8 DALPF OUT O DA side LPF output
9 MIX OUT O Mix AMP output for original tone & echo tone
10 MIX IN I Mix AMP input pin for original tone
11 ADLPF IN I AD side LPF input
12 ADLPF OUT O AD side LPF output
13 ADINT OUT O AD side integrator output
14 ADINT IN I AD side integrator input
15 VCC - Power supply
16 NC2 - Non connect
17 MUTE I Mute control signal input
18 CR - CR pin for oscillator