MSC1157 查看數據表（PDF） - Oki Electric Industry

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MSC1157

Speaker Drive Amplifier

Oki Electric Industry 

¡ Semiconductor

MSC1157

ABSOLUTE MAXIMUM RATINGS

Parameter

Symbol Condition

Rating

Unit Remark

Power Supply Voltage

Input Voltage

Maximum Output Current

VCC Ta=25°C

VIN

Ta=25°C

IOMAX Ta=25°C

–0.3 to +6.5

–0.3 to VCC+0.3

(*1)

±400

V

VCC

STBY

V

AIN, SEL

mA

SP, SP

Power Dissipation

PD

Ta=25°C

470

mW DIP type

400

mW SOP type

Junction Temperature

Storage Temperature

TjMAX

—

TSTG

—

125

–55 to +150

°C

Chip

°C

*1 Avoid shorting the output pins (SP and SP) to VCC or GND because the IC may be damaged.

RECOMMENDED OPERATING CONDITIONS

Parameter

Power Supply Voltage

Load Impedance (*2)

Peak Load Current

"H" Input Voltage

"L" Input Voltage

STBY Operating Frequency (*3)

Operating Temperature

Symbol

Condition

VCC

—

RL

—

IO-P

—

VIH For STBY and SEL pins

VIL

SEL = "L"

At clock input

fSTBY

VCC ≥ 2.4 V

SEL = "H"

At clock input

VCC ≥ 2.4 V

Top

—

Min.

2.0

8.0

—

0.7 VCC

—

32 k

32 k

–20

Max.

6.0

—

350

—

0.3 VCC

Unit

V

W

mA

V

V

4.096 M

Hz

1M

+70

°C

*2 A speaker of 8 W (standard) or more should be used.

*3 The input of clocks may cause a little noise in output waveforms.

It is recommended to input the DC voltage to inprove voice quality.

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