MSC1157MS-K Oki Semiconductor, MSC1157MS-K Datasheet

no-image

MSC1157MS-K

Manufacturer Part Number
MSC1157MS-K
Description
Speaker drive amplifier
Manufacturer
Oki Semiconductor
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MSC1157MS-K
Manufacturer:
OKI
Quantity:
20 000
Part Number:
MSC1157MS-KR1
Manufacturer:
OKI
Quantity:
2 548
Part Number:
MSC1157MS-KR1-7
Manufacturer:
OKI
Quantity:
20 000
Part Number:
MSC1157MS-KR3
Manufacturer:
PANASONIC
Quantity:
3 000
Part Number:
MSC1157MS-KR3
Manufacturer:
OKI
Quantity:
8 000
Part Number:
MSC1157MS-KR3
Manufacturer:
OKI
Quantity:
20 000
E2D0048-39-22
¡ Semiconductor
¡ Semiconductor
MSC1157
Speaker Drive Amplifier
GENERAL DESCRIPTION
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. 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
• Standby function
• High output current
• Differential outputs
• Adjustable gain
• Package options:
BLOCK DIAGRAM
8-pin plastic DIP (DIP8-P-300-2.54)
8-pin plastic SOP (SOP8-P-250-1.27-K) (Product name : MSC1157MS-K)
Chip
Operating current
STBY
GND
SEL
A
VR
IN
V
CC
20 kW
Logic
(Product name : MSC1157RS)
+
100 kW
V
: 2.0 to 6.0 V (Single power supply)
: Current dissipation less than 1 mA in standby
: 350mA peak
: A speaker can be directly connected between
: Gain can be adjusted by use of an external resistor.
CC
: 1.6mA without load (typ.)
differential outputs.
+
5 kW
Previous version: May. 1997
This version: Feb. 1999
V
SP
SP
CC
MSC1157
1/13

Related parts for MSC1157MS-K

MSC1157MS-K Summary of contents

Page 1

... Low current dissipation Operating current • Standby function • High output current • Differential outputs • Adjustable gain • Package options: 8-pin plastic DIP (DIP8-P-300-2.54) 8-pin plastic SOP (SOP8-P-250-1.27-K) (Product name : MSC1157MS-K) Chip BLOCK DIAGRAM STBY SEL ...

Page 2

Semiconductor PIN CONFIGURATION (TOP VIEW GND PIN DESCRIPTIONS Pin Symbol Type 5 V — Power supply pin GND — Ground pin Signal input pin for analog signal inputs, etc. IN ...

Page 3

Semiconductor ABSOLUTE MAXIMUM RATINGS Parameter Power Supply Voltage Input Voltage Maximum Output Current Power Dissipation Junction Temperature Storage Temperature *1 Avoid shorting the output pins (SP and SP RECOMMENDED OPERATING CONDITIONS Parameter Power Supply Voltage Load Impedance ...

Page 4

Semiconductor ELECTRICAL CHARACTERISTICS Parameter A Input Resistance IN Voltage Gain Output Power Total Harmonic Distortion Ripple Elimination Ratio Output DC Voltage (*4) Output Offset Voltage Output "H" Voltage Output "L" Voltage STBY, SEL Input Current VR Equivalent Resistance Circuit ...

Page 5

Semiconductor APPLICATION CIRCUIT Standby Select Input Standby Input Audio Input • If parasitic capacitance of 60pF or more exists between GND and the speaker output pin SP or SP, oscillation may occur. Implement the circuit mount design so as ...

Page 6

Semiconductor GAIN ADJUSTMENT 1. Gain Adjustment Using Input Resistance (This approach allows gain adjustment with fewer external components) Standby Select Input Standby Input C1 Audio Input • Cutoff frequency fc on the low frequency side is determined from the ...

Page 7

Semiconductor OPERATING CHARACTERISTICS Power Dissipation vs. Ambient Temperature 800 700 600 500 DIP SOP 400 300 200 100 0 -30 -20 - 100 Ambient Temperature Ta [°C] Power Dissipation ...

Page 8

Semiconductor Circuit Current vs. Voltage Supply 2E-3 1.5E-3 1E-3 5E Supply Voltage V [V] CC Output Voltage vs. Load Current 2 SP Output 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 0 ...

Page 9

Semiconductor 2.4 2.2 2 1.8 1.6 1.4 1.2 1 0.8 -40 - -40 -20 Circuit Current during Standby vs. Ambient Temperature (V 3 2.6 2.2 1.8 1.4 1 0.6 0.2 -0.2 ...

Page 10

Semiconductor 10 V =3V CC RL=16W 100 10 V =3V CC RL=16W 100 Voltage Gain vs. Frequency 100 1k ...

Page 11

Semiconductor PAD CONFIGURATION Pad Layout Chip size : X=2.3mm, Y=2.4mm Chip thickness : 350 30mm Pad size (PV aperture) : 110¥110mm Substrate potential : GND Pad location diagram 2 3 Pad Coordinates (Chip center is located at X=0 and ...

Page 12

Semiconductor PACKAGE DIMENSIONS DIP8-P-300-2.54 MSC1157 (Unit : mm) Package material Epoxy resin Lead frame material 42 alloy Pin treatment Solder plating more Solder plate thickness Package weight (g) 0.46 TYP. 12/13 ...

Page 13

Semiconductor SOP8-P-250-1.27-K Mirror finish Notes for Mounting the Surface Mount Type Package The SOP, QFP, TSOP, TQFP, LQFP, SOJ, QFJ (PLCC), SHP, and BGA are surface mount type packages, which are very susceptible to heat in reflow mounting and ...

Page 14

NOTICE 1. The information contained herein can change without notice owing to product and/or technical improvements. Before using the product, please make sure that the information being referred to is up-to-date. 2. The outline of action and examples for application ...

Related keywords