Philips Semiconductors
Product specification
Low voltage mono/stereo power amplifier
GENERAL DESCRIPTION
TDA7050T
The TDA7050T 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
P
= 3 V)
Bridge tied load application (BTL)
Output power at R
L
= 32
Ω
V
P
= 3 V; d
tot
= 10%
D.C. output offset voltage between the outputs
Noise output voltage (r.m.s. value)
at f = 1 kHz; R
S
= 5 kΩ
Stereo application
Output power at R
L
= 32
Ω
d
tot
= 10%; V
P
= 3 V
d
tot
= 10%; V
P
= 4,5 V
Channel separation at R
S
= 0
Ω;
f = 1 kHz
Noise output voltage (r.m.s. value)
at f = 1 kHz; R
S
= 5 kΩ
PACKAGE OUTLINE
8-lead mini-pack; plastic (SO8; SOT96A); SOT96-1; 1996 July 24.
V
no(rms)
typ.
100
µV
P
o
P
o
α
typ.
typ.
typ.
35 mW
75 mW
40 dB
V
no(rms)
typ.
140
µV
P
o
|∆V|
typ.
max.
140 mW
70 mV
V
P
I
tot
typ.
1,6 to 6,0 V
3,2 mA
July 1994
2
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