SC7312 查看數據表（PDF） - Silan Microelectronics

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SC7312

4-CH OUTPUT STEREO AUDIO PROCESSOR WITH 4 STEREO INPUTS AND TONE/VOLUME CONTROL

Silan Microelectronics 

SC7312

ABSOLUTE MAXIMUM RATINGS

Characteristics

Supply Voltages

Operating Temperature

Storage Temperature

Symbol

VS

Tamb

Tstg

Ratings

10.2

-40 ~ +85

-55 ~ +150

Unit

V

°C

°C

QUICK REFERENCE DATA

Characteristics

Supply Voltage

Maximum Input Signal Handling

Total Harmonic Distortion ,V=1Vrms,

f=1kHz

Signal to Noise Ratio

Channel Separation, f=1kHz

Volume Control, 1.25dB step

Bass and Treble Control, 2dB step

Fader and Balance Control, 1.25dB

step

Input Gain, 3.75dB Step

Mute Attenuation

Symbol

Vs

VCL

THD

S/N

Sc

Min.

6

2

-78.75

-14

-38.75

0

Typ.

9

0.01

106

103

100

Max.

10

0.1

0

+14

0

11.25

Unit

V

Vrms

%

dB

dB

dB

dB

dB

dB

dB

ELECTRICAL CHARACTERISTICS (Refer to the test circuit)

(Tamb=25°C, VS=9.0V, RL=10kΩ, RG=600Ω, all controls flat(G=0), f=1kHz,Unless otherwise specified)

Characteristics

Symbol

Test conditions

Min. Typ. Max. Unit

SUPPLY VOLTAGE

Operating Supply Voltage

VS

6

9 10.0 V

Operating Supply Current

IS

20.0 35.0 mA

Ripple Rejection of Supply Voltage

SVR

60 80

dB

INPUTS SELECTORS

Input Resistance

RII Input 1, 2, 3, 4

35 50 70 kΩ

Clipping Level

VCL

2 2.5

Vrms

Input Separation (note 2)

SIN

80 100

dB

Output Load Resistance

RL Pin 8, 21

4

kΩ

Minimum Input Gain

GIN(MIN)

-1

0

1 dB

Maximum Input gain

GIN(MAX)

11.25

dB

Step Resolution

GSTEP

3.75

dB

Input Noise

eIN G=11.25dB

2

µV

DC Steps

Adjacent gain steps

VDC

G=18.75 to MUTE

4

20 mV

4

mV

(To be continued)

HANGZHOU SILAN MICROELECTRONICS CO.,LTD

Http: www.silan.com.cn

REV:1.2 2004.08.03

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