GP34119 Datasheet, PDF (1/8 Pages) List of Unclassifed Manufacturers – LOW POWER AUDIO AMPLIFIER

ISSUED DATE :2005/02/18
REVISED DATE :
GP34119
LOW POWER AUDIO AMPLIFIER
Description
The GP34119 is a low power audio amplifier integrated circuit intended (primarily) for telephone applications, such as in speakerphones. It
provides differential speaker outputs to maximize output swing at low supply voltages (2.0V minimum). Coupling capacitors to the speaker
are not required. Open loop gain is 80 dB, and the closed loop gain is set with two external resistors. A Chip Disable pin permits powering
down and/or muting the input signal.
Features
Ô¦Wide Operating Supply Voltage Range (2.0V to 16V), Allows Telephone Line Powered Applications
Ô¦Low Quiescent Supply Current (2.7mA Typ) for Battery Powered Applications
Ô¦Chip Disable Input to Power Down the IC
Ô¦Low Power-Down Quiescent Current (65uA Typ)
ԦDrives a Wide Range of Speaker Loads (8.0Өʳ and Up)
ԦOutput Power Exceeds 250 mW with 32Өʳ Speaker
Ô¦Low Total Harmonic Distortion (0.5% Typ)
Ô¦Gain Adjustable from <0 dB to >46 dB for Voice Band
Ô¦Requires Few External Components
Package Dimensions
D
GAUGE PLANE
SEATING PLANE
ZZ
be
b
SECTION Z - Z
DIP-8
REF.
A
A1
A2
b
b1
b2
b3
c
Millimeter
Min.
Max.
-
0.5334
0.381
-
2.921
4.953
0.356
0.559
0.356
0.508
1.143
1.778
0.762
1.143
0.203
0.356
REF.
c1
D
E
E1
e
HE
L
Millimeter
Min. Max.
0.203
0.279
9.017
10.16
6.096
7.112
7.620
8.255
2.540 BSC
-
10.92
2.921
3.810
Block Diagram and Simplified Application & Pin Configuration
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