SSGSC34119 Datasheet, PDF (1/9 Pages) SeCoS Halbleitertechnologie GmbH – Low Power Audio Amplifier

Elektronische Bauelemente
SSGSC34119
Low Power Audio Amplifier
DESCRIPTION
The SGSC34119 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
z Wide Operating Supply Voltage Range (2.0V to 16V),
allows Telephone Line Powered Applications
z Low Quiescent Supply Current (2.7mA Typ) for Battery Powered Applications
z Chip Disable Input to Power Down the IC
z Low Power-Down Quiescent Current (65µA Typ)
z Drives a Wide Range of Speaker Loads (8.0Ω and Up)
z Output Power Exceeds 250 mW with 32Ω Speaker
z Low Total Harmonic Distortion (0.5% Typ)
z Gain Adjustable from <0 dB to >46 dB for Voice Band
z Requires Few External Components
PACKAGE DIMENSIONS
REF.
A
B
C
D
E
F
Millimeter
Min.
Max.
5.80
6.20
4.80
5.00
3.80
4.00
0
8
0.40
0.90
0.19
0.25
REF.
M
H
L
J
K
G
Millimeter
Min.
Max.
0.10
0.25
0.35
0.49
1.35
1.75
0.375 REF.
45
1.27 TYP.
BLOCK DIAGRAM AND SIMPLIFIED APPLICATION & PIN CONFIGURATION
01-June-2002 Rev. A
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