UPC4574G2 데이터 시트보기 (PDF) - NEC => Renesas Technology

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UPC4574G2

QUAD ULTRA LOW-NOISE, WIDEBAND, OPERATIONAL AMPLIFIER

NEC => Renesas Technology 

MEASUREMENT CIRCUIT

Fig.1 Total Harmonic Distortion Measurement Circuit

−

VO = 3 Vr.m.s.

+

2 kΩ

µPC4574

Fig.2 Noise Measurement Circuit (RIAA)

2400 pF 8200 pF

610 Ω 47 µ+F

2.2 kΩ 33 µF

56 kΩ

+

−

+

30 kΩ 330 kΩ

1+.5 µF

40 dB Amp.

LPF

(fO = 30 kHz)

100 kΩ

VO = (36.5 dB+40 dB) x Vn

Vn

=

VO

76.5 dB

Fig.3 Flat Noise Measurement Circuit (FLAT+JIS A)

100 Ω

10 kΩ

−

+

RS = 100 Ω

JIS A

VO = 40 dB x Vn

Vn =

VO

40 dB

Data Sheet G15977EJ4V0DS

5

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