GC570 데이터 시트보기 (PDF) - Gennum -> Semtech

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GC570

DynamEQ® II WDRC IC

Gennum -> Semtech 

TYPICAL PERFORMANCE CURVES

-10

-20

3:1

2:1

-30

4:1

-40

1.5:1

-50

1.2:1

-60

1:1

-70

-80

-90

-100 -90 - 80 -70

-60 -50 -40 -30 -20

INPUT LEVEL (dBV)

Fig. 5 I/O Transfer function for Different Compression Ratios

50

VIN = -96dBV

40

30

VIN = -80dBV

VIN = -60dBV

20

VIN = -40dBV

10

VIN = -20dBV

0

-10

20

100

1k

FREQUENCY (Hz)

10k 20k

Fig. 6 Frequency Response for Different Input Levels

1.00

0.99

0.88

0.77

0.66

0.55

0.44

0.33

0.22

0.1

0.00

1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0

COMPRESSION RATIO (RATIO)

Fig. 7 Compression Settings Resistor Ratio for High Pass

Channel (RHI1 & RHI2) and Low Pass Channel (RLO1 & RLO2)

50

VIN = -60dBV

40

30

20

10

RVC = 220kΩ

RVC = 100kΩ

RVC = 47kΩ

RVC = 22kΩ

RVC = 10kΩ

0

-10

20

100

1k

FREQUENCY (Hz)

10k 20k

Fig. 8 Frequency Response for Different RVC Values

-10

COMPRESSION 1:1

-20

-30

RM PO = 0Ω

RM PO = 10kΩ

RM PO = 22kΩ

RM PO = 50kΩ

-40

-50

-50

-40

-30

INPUT LEVEL (dBV)

Fig. 9 I/O Transfer Function for

Different RMPO Resistors

-20

5

-10

-20

-30

RTH = ∞

-40

RTH = 0Ω

RTH = 10kΩ

-50

RTH = 22kΩ

RTH = 47kΩ

-60

RTH = 100kΩ

-70

-100 -90

-80 -70 -60 -50 -40

INPUT LEVEL (dBV)

30 -20

Fig. 10 I/O Transfer Function for

Different RTH Resistors

521 - 99 - 00

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