UPC4572G2(5) 查看數據表（PDF） - NEC => Renesas Technology

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UPC4572G2(5)

LOW SUPPLY VOLTAGE, ULTRA LOW-NOISE, HIGH SPEED, WIDE BAND, LOW IB DUAL OPERATIONAL AMPLIFIER

NEC => Renesas Technology 

MEASUREMENT CIRCUITS

Fig. 1 Total Harmonic Distortion Measurement Circuit

−

VO = 1 Vr.m.s.

+

2 kΩ

µPC4572

Fig. 2 Noise Measurement Circuit (RIAA)

2400 pF 8200 pF

610 Ω 47 µ F+

−

2.2 kΩ 33 µ F

+

56 kΩ +

30 kΩ 330 kΩ

1.5 µF

+

40 dB Amp.

LPF

(fO = 30 kHz)

100 kΩ

VO = (36.5 dB + 40 dB) × Vn

Vn =

VO

76.5 dB

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

100 Ω

10 kΩ

−

+

RS = 100 Ω

JIS A

VO = 40 dB × Vn

Vn =

VO

40 dB

Data Sheet G15972EJ5V0DS

5

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