SC7312

HANGZHOU SILAN MICROELECTRONICS CO.,LTD

REV:1.2

2004.08.03

Http: www.silan.com.cn

Page 2 of 13

ABSOLUTE MAXIMUM RATINGS

Characteristics

Symbol

Ratings

Unit

Supply Voltages

10.2

V

Operating Temperature

-40 ~ +85

°C

Storage Temperature

-55 ~ +150

°C

QUICK REFERENCE DATA

Characteristics

Symbol

Min.

Typ.

Max.

Unit

Supply Voltage

6

9

10

V

Maximum Input Signal Handling

2

Total Harmonic Distortion ,V=1Vrms,

f=1kHz

THD

0.01

0.1

%

Signal to Noise Ratio

S/N

106

dB

Channel Separation, f=1kHz

103

dB

Volume Control, 1.25dB step

-78.75

0

dB

Bass and Treble Control, 2dB step

-14

+14

dB

Fader and Balance Control, 1.25dB

step

-38.75

0

dB

Input Gain, 3.75dB Step

0

11.25

dB

Mute Attenuation

100

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

6

9

10.0

V

Operating Supply Current

20.0

35.0

mA

Ripple Rejection of Supply Voltage

SVR

60

80

dB

INPUTS SELECTORS

Input Resistance

Input 1, 2, 3, 4

35

50

70

k

Ω

Clipping Level

2

2.5

Vrms

Input Separation (note 2)

80

100

dB

Output Load Resistance

Pin 8, 21

4

k

Ω

Minimum Input Gain

-1

0

1

dB

Maximum Input gain

11.25

dB

Step Resolution

GSTEP

3.75

dB

Input Noise

G=11.25dB

2

µV

Adjacent gain steps

4

20

mV

DC Steps

G=18.75 to MUTE

4

mV

(To be continued)