NCS2211
Low Distortion Audio Power
Amplifier with Differential
Output and Shutdown Mode
Product Description
The NCS2211 is a high performance, low distortion Class A/B
audio amplifier. It is capable of delivering 1 W of output power into an
8
W
speaker bridge-tied load (BTL). The NCS2211 will operate over a
wide temperature range, and it is specified for single-supply voltage
operation for portable applications.
It features low distortion performance, 0.2% typical THD + N @
1 W and incorporates a shutdown/enable feature to extend battery life.
The shutdown/enable feature will reduce the quiescent current to 1
mA
maximum.
The NCS2211 is designed to operate over the -40擄C to +85擄C
temperature range, and is available in an 8-lead SOIC package and a
3 X 3 mm DFN8 package. The SOIC package is pin compatible with
equivalent function and comparable performance to competitive
devices as is the DFN8 package. The DFN8 has a low thermal
resistance of only 70擄C/W plus has an exposed metal pad to facilitate
heat conduction to copper PCB material.
Low distortion, high power, low quiescent current, and small
packaging makes the NCS2211 suitable for applications including
notebook and desktop computers, PDA's, and speaker phones.
Features
http://onsemi.com
MARKING
DIAGRAMS
8
8
1
SOIC-8
D SUFFIX
CASE 751
1
1
1
DFN8
MN SUFFIX
CASE 506BJ
N2211
ALYWG
G
N2211
ALYWG
G
8
N2211
A
L
Y
W
G
= Specific Device Code
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb-Free Package
(Note: Microdot may be in either location)
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Differential Output
1.0 W into an 8
W
Speaker
1.5 W into a 4
W
Speaker
Single Supply Operation: 2.7 V to 5.5 V
THD+N: 0.2% @ 1 W Output
Low Quiescent Current: 20 mA Max
Shutdown Current < 1.0
mA
Excellent Power Supply Rejection
Two Package Options: SOIC-8 Package and DFN8
Pin Compatible with Competitive Devices
These are Pb-Free Devices
Desktop Computers
Notebook Computers
PDA's
Speaker Phones
Games
PIN ASSIGNMENT
PIN
1
2
NAME
Enable
Bias
DESCRIPTION
Enable (LOW)/Shutdown (HIGH)
Bias Output at (V
CC
-V
EE
)/2;
Bypass with Capacitor to
Reduce Noise
Non-Inverting Input
Inverting Input
Output+
Positive Supply (Bypass with
10
mF
in parallel with 0.1
mF)
Negative Supply (Connect to GND
for Single-Supply Operation)
Output-
3
4
5
6
7
8
IN+
IN-
OUT+
V
CC
V
EE
OUT-
Applications
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 8 of this data sheet.
漏
Semiconductor Components Industries, LLC, 2008
1
February, 2008 - Rev. 0
Publication Order Number:
NCS2211/D
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