GS3020 Datasheet, PDF (5/6 Pages) Gennum Corporation – Dynamic Equalizer

45
VIN=-96dBV
40
VIN=-88dBV
35
VIN=-80dBV
30
25
VIN=-60dBV
20
VIN=-40dBV
15
V_IN=-20dBV
10
5
0
20
100
1k
FREQUENCY (Hz)
10k 20k
Fig. 5 Frequency Response for Different Input Levels
45
40
VIN = -50dBV
35
30
25
RVC=100kΩ
RVC=47kΩ
RVC=22kΩ
20
RVC=15kΩ
15
10
5
0
20
100
1k
FREQUENCY (Hz)
10k 20k
Fig. 7 Frequency Response for Different RVC Values
0
-10
1kHz
-20
2kHz
-30
5kHz
-40 _{RTH = ∞}
-50
-60
-70
RTH = 0
1kHz
2kHz
5kHz
-80
-100 -90 -80 -70 -60 -50 -40 -30 -20 -10
INPUT LEVEL (dBV)
Fig. 6 I/O Transfer Function for Different Test
Frequencies. Shown for Min/Max RTH Resistors Values
45
VIN=-96dBV
40
35
CHP=100nF
30
CHP=68nF
25
CHP=33nF
20
CHP=10nF
CHP=No Capacitor
15
VIN=-20dBV
10
5
0
20
100
1k
FREQUENCY (Hz)
10k 20k
Fig. 8 Corner Frequency vs CHP Capacitor Value
0
-10
ƒ = 5kHz
-20
-30
-40
RTH = 0Ω
-50
22kΩ
-60
47kΩ
100kΩ
-70
RTH = ∞
-80
-100 -90 -80
-70 -60 -50
-40 -30 -20 -10
INPUT LEVEL (dBV)
Fig. 9 I/O Transfer Function for Different RTH Resistors
45
RTH = ∞
40
= 100kΩ
35
= 47kΩ
30
= 22kΩ
=0
25
20
15
10
5
VIN=-96dBV
0
20
100
1k
10k 20k
FREQUENCY (Hz)
Fig. 10 Frequency Characteristics for Different
RTH Values
5
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