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Philips Semiconductors
Low voltage mono/stereo power amplifier
GENERAL DESCRIPTION
The TDA7050 is a low voltage audio amplifier for small radios with headphones (such as watch, pen and pocket radios)
in mono (bridge-tied load) or stereo applications.
Features
Limited to battery supply application only (typ. 3 and 4 V)
Operates with supply voltage down to 1,6 V
No external components required
Very low quiescent current
Fixed integrated gain of 26 dB, floating differential input
Flexibility in use
mono BTL as well as stereo
Small dimension of encapsulation (see package design example)
QUICK REFERENCE DATA
Supply voltage range
Total quiescent current (at V
Bridge tied load application (BTL)
Output power at R
= 32
L
V
= 3 V; d
= 10%
P
tot
D.C. output offset voltage between the outputs
Noise output voltage (r.m.s. value)
at f = 1 kHz; R
= 5 k
S
Stereo application
Output power at R
= 32
L
d
= 10%; V
= 3 V
tot
P
d
= 10%; V
= 4,5 V
tot
P
Channel separation at R
Noise output voltage (r.m.s. value)
at f = 1 kHz; R
= 5 k
S
PACKAGE OUTLINE
8-lead DIL; plastic (SOT97); SOT97-1; 1996 July 23.
June 1989
= 3 V)
P
= 0 ; f = 1 kHz
S
2
Product specification
TDA7050
V
1,6 to 6,0 V
P
I
typ.
tot
P
typ.
140 mW
o
| V|
max.
V
typ.
140 V
no(rms)
P
typ.
o
P
typ.
o
typ.
V
typ.
100 V
no(rms)
3,2 mA
70 mV
35 mW
75 mW
40 dB
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