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POWER AMPLIFIER. IS31AP4991 Datasheet

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POWER AMPLIFIER. IS31AP4991 Datasheet






IS31AP4991 AMPLIFIER. Datasheet pdf. Equivalent




IS31AP4991 AMPLIFIER. Datasheet pdf. Equivalent





Part

IS31AP4991

Description

1.2W AUDIO POWER AMPLIFIER



Feature


IS31AP4991 1.2W AUDIO POWER AMPLIFIER WI TH ACTIVE-LOW STANDBY MODE November 201 1 GENERAL DESCRIPTION The IS31AP4991 ha s been designed for demanding audio app lications such as mobile phones and per mits the reduction of the number of ext ernal components. It is capable of deli vering 1.2W of continuous RMS output po wer into an 8Ω load @ 5V. An external ly-controlled standb.
Manufacture

ISSI

Datasheet
Download IS31AP4991 Datasheet


ISSI IS31AP4991

IS31AP4991; y mode reduces the supply current to muc h less than 1μA. It also includes inte rnal thermal shutdown protection. The u nity-gain stable amplifier can be confi gured by external gain setting resistor s. FEATURES        Operating from VCC = 2.7V ~ 5.5V 1.2W output power @ VCC = 5V, THD+N= 1%, f = 1kHz, with 8Ω load Ultra-low consump tion in standby mode (much less tha.


ISSI IS31AP4991

n 1μA) 65dB PSRR @217Hz in grounded mod e Near-zero click-and-pop Ultra-low dis tortion (0.025%@0.5W, 1kHz) SOP-8 and M SOP-8 package APPLICATIONS     TYPICAL APPLICATION CIRCUIT Rfeed 20kΩ Cfeed Vcc Mobile phones PDAs Por table electronic devices Notebook compu ter + Vcc Cin 0.22uF Rin 20kΩ VinVin+ http://www.DataSheet4U.net/ Cs 1uF - Vout1 + Vout2 AV = -1 + .


ISSI IS31AP4991

Bypass Standby Control Cb 1uF Standby Bias + GND Figure 1 Typical Applica tion Circuit Integrated Silicon Soluti on, Inc. – www.issi.com Rev.A, 11/22/ 2011 1 datasheet pdf - http://www.Dat aSheet4U.net/ IS31AP4991 PIN CONFIGURA TION Package Pin Configuration (Top Vie w) VIN+ 1 2 3 4 8 7 6 5 VCC Standby VOUT2 Bypass SOP-8 VOUT1 VINGND Stan dby Bypass 1 2 3 4 .

Part

IS31AP4991

Description

1.2W AUDIO POWER AMPLIFIER



Feature


IS31AP4991 1.2W AUDIO POWER AMPLIFIER WI TH ACTIVE-LOW STANDBY MODE November 201 1 GENERAL DESCRIPTION The IS31AP4991 ha s been designed for demanding audio app lications such as mobile phones and per mits the reduction of the number of ext ernal components. It is capable of deli vering 1.2W of continuous RMS output po wer into an 8Ω load @ 5V. An external ly-controlled standb.
Manufacture

ISSI

Datasheet
Download IS31AP4991 Datasheet




 IS31AP4991
IS31AP4991
1.2W AUDIO POWER AMPLIFIER WITH ACTIVE-LOW STANDBY MODE
November 2011
GENERAL DESCRIPTION
The IS31AP4991 has been designed for demanding
audio applications such as mobile phones and permits
the reduction of the number of external components.
It is capable of delivering 1.2W of continuous RMS
output power into an 8load @ 5V.
An externally-controlled standby mode reduces the
supply current to much less than 1μA. It also includes
internal thermal shutdown protection.
The unity-gain stable amplifier can be configured by
external gain setting resistors.
FEATURES
Operating from VCC = 2.7V ~ 5.5V
1.2W output power @ VCC = 5V, THD+N= 1%,
f = 1kHz, with 8load
Ultra-low consumption in standby mode (much
less than 1μA)
65dB PSRR @217Hz in grounded mode
Near-zero click-and-pop
Ultra-low distortion (0.025%@0.5W, 1kHz)
SOP-8 and MSOP-8 package
APPLICATIONS
Mobile phones
PDAs
Portable electronic devices
Notebook computer
TYPICAL APPLICATION CIRCUIT
Rfeed
20kΩ
Cfeed
Cin Rin
0.22uF 20kΩ
Vin-
Vin+
-
+
Vcc
Vcc
http://www.DataSheet4U.net/
Vout1
+ Cs
1uF
Standby
Control
Cb +
1uF
Bypass
Standby
Bias
GND
-
AV = -1
+
Figure 1 Typical Application Circuit
Vout2
Integrated Silicon Solution, Inc. – www.issi.com
Rev.A, 11/22/2011
1
datasheet pdf - http://www.DataSheet4U.net/




 IS31AP4991
IS31AP4991
PIN CONFIGURATION
Package
SOP-8
Pin Configuration (Top View)
VIN+
VOUT1
VIN-
GND
1
2
3
4
8 VCC
7 Standby
6 VOUT2
5 Bypass
MSOP-8
Standby
Bypass
VIN+
VIN-
1
2
3
4
8 VOUT2
7 GND
6 VCC
5 VOUT1
PIN DESCRIPTION
No.
Pin
SOP
VIN+
1
VOUT1
2
VIN-
GND
Bypass
3
4
5
VOUT2
_____________
Standby
Vcc
6
7
8
MSOP
3
5
4
7
2
8
1
6
Description
Positive input of the first amplifier.
Negative output of the IS31AP4991. Connected to the
load and to the feedback resistor Rfeed.
Negative input of the first amplifier, receives the audio
input signal. Connected to the feedback resistor Rhttp://www.DataSheet4U.net/
feed
and to the input resistor Rin.
Ground.
Bypass capacitor pin which provides the common
mode voltage (Vcc/2).
Positive output of the IS31AP4991. Connected to the
load.
The device enters shutdown mode when a low level is
applied on this pin.
Positive analog supply of the chip.
Copyright © 2011 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any 
time without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are 
advised to obtain the latest version of this device specification before relying on any published information and before placing orders for products. 
Integrated Silicon Solution, Inc. does not recommend the use of any of its products in life support applications where the failure or malfunction of the 
product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not 
authorized for use in such applications unless Integrated Silicon Solution, Inc. receives written assurance to its satisfaction, that: 
a.) the risk of injury or damage has been minimized; 
b.) the user assume all such risks; and 
c.) potential liability of Integrated Silicon Solution, Inc is adequately protected under the circumstances
Integrated Silicon Solution, Inc. – www.issi.com
Rev.A, 11/22/2011
2
datasheet pdf - http://www.DataSheet4U.net/




 IS31AP4991
IS31AP4991
ORDERING INFORMATION
Industrial Range: -40°C to +85°C
Order Part No.
Package
IS31AP4991-GRLS2-TR
IS31AP4991-SLS2-TR
SOP-8, Lead-free
MSOP-8, Lead-free
QTY/Reel
2500
2500
http://www.DataSheet4U.net/
Integrated Silicon Solution, Inc. – www.issi.com
Rev.A, 11/22/2011
3
datasheet pdf - http://www.DataSheet4U.net/



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