SM6451AV 查看數據表（PDF） - Nippon Precision Circuits

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产品描述 (功能)

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SM6451AV

Audio Variable Volume IC

Nippon Precision Circuits  

SM6451AV

AC Analog Characteristics

VDD = 5.0 V, 1.2 Vrms amplitude, 1 kHz input frequency, 100 kΩ output load resistance, Ta = 25 °C,

AC-coupled inputs

Analog inputs (LIN, RIN)

Parameter

Input reference amplitude

Input resistance

Input clipping voltage

Symbol

Condition

Rating

Unit

min

typ

max

VAI

–

1.2

–

Vrms

R IN

40

50

60

kΩ

V CLP

THD + N = 1%, ATT = 0 dB

–

1.75

–

Vrms

Analog outputs (LOUT, ROUT)

Parameter

Residual noise voltage

Signal-to-noise ratio

Total harmonic distortion + noise

Gain control range

Step size

Attenuation error (1k to 20kHz)

Absolute attenuation (1 kHz)

Mute attenuation (1 kHz)

Channel crosstalk

Frequency response

Quiescent output zip noise voltage

(while ATT value adjusting)

Minimum driver load resistance

Symbol

Condition

min

V NS

Input signal: 0 Vrms,

–

A-weight filter, 0 dBr = 1.2

SNR

Vrms, ATT = 0 dB

95

THD + N

ATT = 0 dB, 20 kHz

lowpass filter

–

R CNT

−80

Step

0.8

ERR1

0 to −60 dB

−2

ERR2

−61 to −80 dB

−5

AT 0

ATT = 0 dB

–

AT 2

ATT = −20 dB

–

AT 4

ATT = −40 dB

–

AT 6

ATT = −60 dB

–

AT 8

ATT = −80 dB

–

Mute

ATT = Mute

−88

CT

ATT = 0 dB

−105

FR

ATT = 0 dB, f = 200 kHz

–

NJ

0 Vrms input

–

R ML

ATT = 0 dB, THD + N = 1%

–

Rating

typ

10

100

0.0017

–

1

–

–

−0.1

−20.1

−40.3

−60.5

−83.0

−92

−112

−5

–

6

max

20

–

0.0025

0

1.5

1

0

–

–

–

–

–

–

–

–

3

10

Unit

µVrms

dBr

%

dB

dB

dB

dB

dB

dB

dB

dB

dB

dB

dB

dB

mV

kΩ

Reference voltage (VRL, VRR)

Parameter

Reference voltage output

Symbol

V REF

Condition

Rating

Unit

min

typ

max

0.45VDD

0.5VDD

0.55VDD

V

NIPPON PRECISION CIRCUITS—5

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