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Theory of Operation
AM700 Audio Measurement Set Service Manual
3–15
To CPU
XLR (Rear)
XTAL
2
1
13
7
10 8
5
9
4
9
ACQ CLK
Select
U145
AES IN
DARS IN
INT
Frequency
Offset
U88
Reference
Generator
Encoder
U108
PRGM
U107,Q7,Q8
Cable
Gain
Simulator
Synchronous
Phase Offset
DSP
Serial
Interface (SSI)
and
Jitter Generator
RAM
Serial
Counter
Sample
Control
Transmitter
Host Port
SSI,SCI
XLR (Front)
BNC (Rear0
Optical (Rear)
DSP Port (Rear)
Phase and Jitter
Values
Bit and Frame Clocks
VUCP, Block Start
AMPL 0 – 9
AES3 Waveform
Received
Received
Reference
Data
Audio
Data
Generator
Figure 3–5: Digital audio generator simplified block diagram