TDA7050 Datasheet, PDF (2/8 Pages) NXP Semiconductors – Low voltage mono/stereo power amplifier

Philips Semiconductors
Low voltage mono/stereo power amplifier
Product specification
TDA7050
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_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
V_P
1,6 to 6,0 V
I_tot
typ. 3,2 mA
P_o
|∆V|
V_no(rms)
typ. 140 mW
max. 70 mV
typ. 140 µV
P_o
P_o
α
V_no(rms)
typ. 35 mW
typ. 75 mW
typ. 40 dB
typ. 100 µV
PACKAGE OUTLINE
8-lead DIL; plastic (SOT97); SOT97-1; 1996 July 23.
June 1989
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