Oki Electric Industry MSC1157
The MSC1157, designed specifically to operate at a low voltage with low current consumption, is a power amplifier developed for driving a speaker for a voice IC. The voltage gains can be adjusted over a range of up to ten. The differential output can directly drive a speaker without any output coupling capacitors.| Part No. | MSC1157 |
|---|---|
| Datasheet | MSC1157 Download |
| Manufacturer | Oki Electric Industry |
| Description | Speaker Drive Amplifier |
| Buy | Stock & Price |
GENERAL DESCRIPTION
The MSC 1157, because of its ability to stand by, is ideally suitable for portable equipment applications powered by a battery.FEATURES
● Low voltage operation● Low current dissipation Operating current
● Standby function
● High output current
● Differential outputs : 2.0 to 6.0 V (Single power supply) : : : : 1.6mA without load (typ.) Current dissipation less than 1 mA in standby 350mA peak A speaker can be directly connected between differential outputs. : Gain can be adjusted by use of an external resistor.
● Adjustable gain
● Package options: 8-pin plastic DIP (DIP8-P-300-2.54) (Product name : MSC1157RS) 8-pin plastic SOP (SOP8-P-250-1.27-K) (Product name : MSC1157MS-K) Chip BLOCK DIAGRAM VCC Logic VCC STBY SEL VCC 52 kW + – VR SP 5 kW SP 50 kW + AIN GND – 20 kW 100 kW 5 kW 1/13 ¡ Semiconductor MSC1157 PIN CONFIGURATION (TOP VIEW) VR 1 8 SEL AIN 2 7 STBY SP 3 6 SP GND 4 8-Pin Plastic DIP or 8-Pin Plastic SOP 5 VCC PIN DESCRIPTIONS Pin 5 4 2 Symbol Type VCC GND AIN — — I Power supply pin.
