Filter
Top Products
9–15
AM700 Audio Measurement Set Service Manual
B (R Dac)
A (L Dac)
+5 V1
A
Power–Up
Reset
To Gnd
U99
CR16
Lowpass
Filter
5–Pole Linear
Phase
U13A,U44,U45
Lowpass
Filter
80 khz 11–Pole
Elliptic
Hybrid
FL1
Lowpass
Filter
5–Pole Linear
Phase
Lowpass
Filter
80 khz 11–Pole
Elliptic
Hybrid
U19A,U46,U47
FL2
TP4
TP3
A Dac Out
Agnd
A
47 nf
47 nf
TP33
TP34
A High BW
B High BW
U60
U60
Select
B BPF
Select
A BPF
4,5
6,8
4,16
1,3
Select
A BPF
Select
B BPF
4,5
4,5
U67
TP16
TP15
A BPF
B BPF
9,16
9,16
1,3,6,8
1,3,6,8
U61 – 66
13
13
Tuneable
Bandpass Filter
2 Bands:20 hz to 750 hz
750 hz to 20 khz
Tuneable
Bandpass Filter
2 Bands:20 hz to 750 hz
750 hz to 20 khz
MSB, U71, Switches Bands
MSB, U64, Switches Bands
Bypass
Frequency
Frequency
Bypass
B High Resolution
B High Bandwidth
A High Resolution
A High Bandwidth
”0”=High Band
”1”=Low Band
”0”=High Band
”1”=Low Band
”0”=High Band
”1”=Low Band
Figure 9–11: Analog Generator, analog filters block diagram