NCS2211
Low Distortion Audio Power
Amplifier with Differential
Output and Shutdown Mode
Product Description
http://onsemi.com
The NCS2211 is a high performance, low distortion Class A/B
audio amplifier. It is capable of delivering 1ꢀW of output power into an
8ꢀW 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.
MARKING
DIAGRAMS
8
SOIC-8
D SUFFIX
CASE 751
N2211
It features low distortion performance, 0.2% typical THD + N @
1ꢀW and incorporates a shutdown/enable feature to extend battery life.
The shutdown/enable feature will reduce the quiescent current to 1ꢀmA
maximum.
8
ALYWG
1
G
1
The NCS2211 is designed to operate over the -40°C to +85°C
temperature range, and is available in an 8-lead SOIC package and a
3ꢀXꢀ3 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°C/W plus has an exposed metal pad to facilitate
heat conduction to copper PCB material.
1
8
DFN8
MN SUFFIX
CASE 506BJ
N2211
ALYWG
G
1
N2211 = Specific Device Code
A
L
= Assembly Location
= Wafer Lot
= Year
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.
Y
W
G
= Work Week
= Pb-Free Package
(Note: Microdot may be in either location)
Features
•ꢁDifferential Output
PIN ASSIGNMENT
•ꢁ1.0 W into an 8 W Speaker
PIN
1
NAME
Enable
Bias
DESCRIPTION
Enable (LOW)/Shutdown (HIGH)
•ꢁ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
2
Bias Output at (V -V )/2;
CC EE
Bypass with Capacitor to
Reduce Noise
3
4
5
6
IN+
IN-
Non-Inverting Input
Inverting Input
Output+
OUT+
V
CC
Positive Supply (Bypass with
10ꢀmF in parallel with 0.1ꢀmF)
Applications
7
8
V
Negative Supply (Connect to GND
for Single-Supply Operation)
EE
•ꢁDesktop Computers
•ꢁNotebook Computers
•ꢁPDA's
OUT-
Output-
•ꢁSpeaker Phones
•ꢁGames
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 8 of this data sheet.
©ꢀ Semiconductor Components Industries, LLC, 2008
February, 2008 - Rev. 0
1
Publication Order Number:
NCS2211/D