35
VIN=-96dBV
30
VIN=-88dBV
25
VIN=-80dBV
20
VIN=-70dBV
15
VIN=-60dBV
10
5
VIN=-40dBV
0
VIN=-20dBV
-5
-10
-15
20
100
1k
FREQUENCY (Hz)
10k 20k
Fig. 5 Frequency Response for Different Input Levels
30
25
VIN = -50dBV
20
15
RVC=100kΩ
RVC=47kΩ
RVC=22kΩ
10
RVC=15kΩ
5
0
-5
-10
-15
20
100
1k
FREQUENCY (Hz)
10k 20k
Fig. 7 Frequency Response for Different RVC Values
-10
-20
-30
1kHz
-40
2kHz
5kHz
-50 RTH = ∞
-60
-70
-80
RTH = 0
1kHz
2kHz
5kHz
-90
-100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0
INPUT LEVEL (dBV)
Fig. 6 I/O Transfer Function for Different Test
Frequencies. Shown for Min/Max RTH Resistors Values
35
VIN=-96dBV
30
25
20
CHP=100nF
CHP=68nF
15
CHP=33nF
10
CHP=10nF
5
CHP=No Capacitor
0
VIN=-20dBV
-5
-10
-15
20
100
1k
FREQUENCY (Hz)
10k 20k
Fig. 8 Corner Frequency vs CHP Capacitor Value
-10
-20
ƒ = 5kHz
-30
-40
-50
RTH = 0Ω
-60
22kΩ
-70
47kΩ
100kΩ
-80
RTH = ∞
-90
-100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0
INPUT LEVEL (dBV)
Fig. 9 I/O Transfer Function for Different RTH Resistors
35
RTH = ∞
30
= 100kΩ
25
= 47kΩ
20
= 22kΩ
15
=0
10
5
0
-5
-10
VIN=-96dBV
-15
20
100
1k
FREQUENCY (Hz)
10k 20k
Fig. 10 Frequency Characteristics for Different
RTH Values
5
521 - 06 - 03