GP520A 데이터 시트보기 (PDF) - Gennum -> Semtech

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GP520A

Programmable Analog Signal Processor

Gennum -> Semtech 

IINNIN = 63 dBV

1

IGAIN = 3.75 x IR

0.1

0.01

0 0.25 0.5 0.75 1 1.25 1.5 1.75 2

NORMALIZED I REL / I R CURRENT

Fig. 8 Release Time vs IREL (Fig.7 Test Circuit)

-40

IGAIN = 3.75 x IR

-50

-60

-70

0 0.25

0.5 0.75 1

1.25 1.5 1.75 2

NORMALIZED I THRESH / I R CURRENT

Fig. 10 Threshold Level vs ITHRESH (Fig.7 Test Circuit)

30

ITHRESH = 1.875 x IR

20

IN = - 63 dBV

R1=100kΩ

10

0

-10

0

0.5 1 1.5

2 2.5 3 3.5 4

NORMALIZED I GAIN / I R CURRENT

Fig. 9 AGC Gain vs IGAIN (Fig.7 Test Circuit)

1

RF = 50kΩ

VIN = - 30 dBV

(S3-b)

0.1

0.01

0 0.25 0.5 0.75 1 1.25 1.5 1.75 2

NORMALIZED I CLIP / I R CURRENT

Fig. 11 Output Swing vs ICLIP (Fig.13 Test Circuit) (note 1)

0.3

I10 = 0µA

0.25

0.2

0.15

0.1

0 0.25 0.5 0.75 1 1.25 1.5 1.75 2

NORMALIZED I BIAS / I R CURRENT

Fig. 12 Receiver Bias Voltage vs IBIAS (Fig. 14 Test Circuit)

NOTE: 1. Switch S2 - open, S4 - closed.

7

510 - 78 - 06

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