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9–13
AM700 Audio Measurement Set Service Manual
Once
DSP
RAM
12.288 MHz
U6
DSP
Control and I/O
Reset
and
SSI
Clock
U7
Reset
PAL
Select
J15
RST
J4
Host
J17
Port
SCK
Disable
BCLK
SCK
DSPreset
Reset_Gen
U4
U2
Address
Address
BCLK
SSI
CERAM
CEPO
OVLD
Control
A(0 –15)
D(0 – 23)Data
2
CEPO
U5
Address
Decoder
PAL
U94
Opto–
Isolators
Output
Overload
To DACs
U20,U21
Clock
and
Data Isolators
Clock
and
Data Isolators
U9,U10
Serial Control
Output and ID
PAL
U87
Control
Latches
Control
Latches
Decimal Point is
Power ON Indicator
CONTROLS:
Gain
Bandpass Filter
High Res/High BW Mode
Source Impedance
Figure 9–9: Analog generator, DSP section