MSC1157MS-K
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Manufacturer Part#:

MSC1157MS-K

Product Category: IC Chips
Manufacturer: OKI
Description:
  datasheetMSC1157MS-K Datasheet
Package: SOP
Quantity: 3568 PCS
Lead Free Status / RoHS Status: Lead free / RoHS Compliant
Moisture Sensitivity Level(MSL): 3(168 Hours)
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Manufacturer: OKI
Product Category: IC Chips
Features, Applications

This version: May. 2000 Previous version: Feb. 2000

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 up to ten. The differential output can directly drive a speaker without any output coupling capacitors. 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 6.0 V (Single power supply) 1.6mA without load (typ.) Current dissipation less than 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



Pin 4 2 Symbol Type VCC GND AIN I Power supply pin. Ground pin. Signal input pin for analog signal inputs, etc. Digital input pins. Setting these pins configures the standby status. See the table below for how to set the pins. SEL 0 STBY 0 1 Clock STBY, SEL I Clock 1 Clock 0 1 Clock Status Operation Standby Operation Standby Operation


Description

Applying a clock between 32kHz and 4MHz to either the STBY or the SEL pin leads the IC to operation status regardless of the status set at the other pin. Applying clocks to both of the pins at the same time may cause malfunction. Refer to the section, RECOMMENDED OPERATING CONDITIONS since clock frequencies are changed by setting the SEL pin. Bias output pin for internal circuits. This pin is at GND potential during standby. SP O Connecting a capacitor between VR and the GND pin reduces the pop-up noise at power on and improves the ripple elimination ratio. Speaker output pin. This pin outputs a negative phase with respect to the input signal. Speaker output pin. This pin outputs a positive phase with respect to the input signal.


Parameter Power Supply Voltage Input Voltage Maximum Output Current Power Dissipation Junction Temperature Storage Temperature


Remark VCC STBY AIN, SEL SP, SP DIP type SOP type Chip

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

Parameter Power Supply Voltage Load Impedance (*2) Peak Load Current "H" Input Voltage "L" Input Voltage


*2 A speaker 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.

Search Part number : "MSC11" Included word is 15
Part Number Manufacturer Package Quantity Description
MSC1191MS-KR1 OKI SOP-8P 1117
MSC1191MS-KR3 OKI SOP8 27857
MSC1192MS-KR1 OKI SOP8 5060
MSC1192MS-KR3 N/A NA 930
MSC1197BMS-K N/A SOP 168
MSC1157M3-KR1 OKI SOP8 608
MSC1157MS-KR1 OKI SOP8 7008
MSC1157MS-KR3 OKI SOP 13845
MSC1157RS OKI DIP8 97
MSC1162A OKI SOP60 5372
MSC1162AGS-BK OKI SSOP-60 3957
MSC1163GS-BK OKI SSOP-60 496
MSC1164GS OKI SOP 1125
MSC1164GS-K OKI SOP32 4311
MSC1169MS-KR1 OKI SOP16 1245
MSC1157MS-K RELATED PRODUCT PICTURE
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  • MSC1191MS-KR1
  • MSC1191MS-KR3
  • MSC1192MS-KR1
  • MSC1192MS-KR3
  • MSC1197BMS-K
  • MSC1157M3-KR1
  • MSC1157MS-KR1
  • MSC1157MS-KR3
  • MSC1157RS
  • MSC1162A
  • MSC1162AGS-BK
  • MSC1163GS-BK
  • MSC1164GS
  • MSC1164GS-K
  • MSC1169MS-KR1
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