QS7779CM datasheet(5/11 Pages) NPC

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QS7779PM/CM

NIPPON PRECISION CIRCUITS—5

DC Electrical Characteristics

VCC = 9V, VDD = 5V, GND = 0V, Ta = 25 °C unless otherwise noted.

Noise/THD Characteristics

VCC = 9V, VDD = 5V, GND = 0V, Ta = 25 °C unless otherwise noted.

Parameter

Symbol

Condition

Limits

Unit

min

typ

m a x

LIN, RIN analog input impedance

Z AIN1

Ω

CIN analog input impedance

Z AIN2

456

Ω

Reference voltage out

V REFOUT

–

V CC /2

–V

HIGH-level input voltage

V IH

0.7

× V

––

L O W -level input voltage

V IL

––

0.3

× V

Input leakage current

ILEAK

– 3

–

µA

S D A, SCL input leakage current

(I2C input pin)

ILOPEN

V IN = 10V

– 3

–

µA

S D A L OW -level output voltage

V OL

A cknowledge signal out

IOL = 3mA

–

0.4

Supply voltage (analog)

V CC

5–

1 3

Supply voltage (digital)

V DD

4.5

–

5.5

Current consumption (analog)

ICC

–

6.5

m A

Current consumption (digital)

IDD

–

0.3

0.5

m A

Standby current (analog)

ICCSAVE

–

0.1

0.2

m A

Parameter

Symbol

Condition

Limits

Unit

min

typ

m a x

Noise voltage

N BYP

BYP = HIGH (Bypass mode), A-wgt,

LOUT, RO U T

–1 0

2 0

µV

RMS

Noise voltage

N QS

BYP = LOW (Qsurround mode),

SPRD = HIGH, A-wgt, LOUT, RO U T

–2 0

4 0

µV

RMS

THD

THD QS

LIN = RIN = 1VRMS , BYP = LOW (Qsur-

round mode), SPRD = HIGH, f = 1kHz

–

0.1

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