INTEGRATED CIRCUITS DATA SHEET TDA7050
Low voltage mono/stereo power
amplifier
Product specification
File under Integrated Circuits, IC01 June 1989 Philips Semiconductors Product specification Low voltage mono/stereo power amplifier 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
1,6 to 6,0 V Supply voltage range VP Total quiescent current (at VP = 3 V) Itot typ. 3,2 mA Po typ. 140 mW max. 70 mV Vno(rms) typ. 140 µV dtot = 10%; VP = 3 V Po typ. 35 mW dtot = 10%; VP = 4,5 V Po typ. 75 mW α typ. 40 dB Vno(rms) typ. 100 µV Bridge tied load application (BTL)
Output power at RL = 32 Ω
VP = 3 V; dtot = 10%
D.C. output offset voltage between the outputs |∆V| Noise output voltage (r.m.s. value)
at f = 1 kHz; RS = 5 kΩ
Stereo application
Output power at RL = 32 Ω Channel separation at RS = 0 Ω; f = 1 kHz …
