July 1994 7
Philips Semiconductors Product specification
2 x 6 W hi-fi audio power amplifier TDA1521A
Notes to the characteristics
1. Power bandwidth at Po max−3 dB.
2. Ripple rejection at RS= 0 Ω, f = 100 Hz to 20 kHz; ripple voltage = 200 mV (r.m.s. value) applied to positive or
negative supply rail.
Operating mode: asymmetrical power supply; test circuit as per Fig.12;
VP= 24 V; RL= 8 Ω; Tamb= 25 °C; f = 1 kHz
Total quiescent current Itot 18 40 70 mA
Output power THD = 0,5% Po56−W
THD = 10% Po6,5 8 −W
Total harmonicdistortion Po= 4 W THD −0,13 0,2 %
Power bandwidth THD = 0,5% 40 to
note 1 B 16 k Hz
Voltage gain Gv29 30 31 dB
Gain balance ∆Gv−0,2 1,0 dB
Noise output voltage
(r.m.s. value);
unweighted (20 Hz to 20 kHz) RS= 2 kΩVno(rms) −70 140 µV
Input impedance |Zi| 1420 26kΩ
Ripple rejection SVRR 35 44 − dB
Channel separation RS = 0 Ωα −45 −dB
PARAMETER CONDITIONS SYMBOL MIN. TYP. MAX. UNIT