TFA9843AJ_1 © Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Preliminary data sheet Rev. 01 — 28 April 2006 7 of 19
Philips Semiconductors TFA9843AJ
20 W stereo power amplifier with volume control

11. Static characteristics

[1] A minimum load of 3 is allowed at supply voltages > 22 V.
[2] The DC output voltage with respect to ground is approximately 0.5VCC.

12. Dynamic characteristics

Table 8. Static characteristics
V
CC

=18V; T

amb

=25

°
C; R
L
=4
; V
I(VC)
=V
CC
; V
i

= 0 V; measured in test circuit of Figure 11;

unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
VCC supply voltage operating [1] 9 1828V
Iqquiescent current RL=- 60 100 mA
ICC(stb) standby supply current VCC = 18 V;
VI(VC) <0.8 V - - 150 µA
VOoutput voltage [2] -9-V
VI(VC) input voltage on pin VC On mode (maximum
gain) 5.0 - VCC V
Volume control mode 1.5 - 5.0 V
Mute mode 1.2 - 1.5 V
Standby mode 0 - 0.8 V
II(VC) input current on pin VC 0 V < VI(VC) <V
CC --20µA
Table 9. Dynamic characteristics SE
V
CC

=18V; T

amb

=25

°
C; R
L
=4

; f = 1 kHz; V

I(VC)
=V
CC

; measured in test circuit of Figure 11;

unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
Pooutput power THD = 10 %; RL=47 8.5 - W
THD = 0.5 %; RL=4- 6.5 - W
VCC =22V;
THD = 10 %; RL=4-14-W
THD total harmonic
distortion Po= 1 W - 0.1 0.5 %
Gv(max) maximum voltage gain VI(VC) > 5.0 V 25 26 27 dB
Gvvoltage gain range 1.5 V < VI(VC) < 5.0 V - 80 - dB
Viinput voltage gain = 0 dB;
THD < 1 % 1.0 - V
Ziinput impedance 40 60 - k
Vn(o) noise output voltage [1] - 150 - µV
SVRR supply voltage ripple
rejection fripple = 1 kHz [2] -60-dB
fripple = 100 Hz to
20 kHz
[2] -60-dB
Vo(mute) mute output voltage [3] - - 150 µV
αcs channel separation ZS=050 60 - dB
|∆Gv(max)|maximum voltage gain
difference --1dB