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TFA9843AJ_1 © Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Preliminary data sheet Rev. 01 — 28 April 2006 2 of 19
Philips Semiconductors
TFA9843AJ
20 W stereo power amplifier with volume control
4. Quick reference data
[1] A minimum load of 3 Ω is allowed at supply voltages > 22 V.
[2] Supply voltage ripple rejection is measured at the output, with a source impedance Z
S
=0Ω at the input
and with a frequency range from 20 Hz to 22 kHz (unweighted). The ripple voltage is a sine wave with a
frequency f
ripple
and an amplitude of 300 mV (RMS), which is applied to the positive supply rail.
5. Ordering information
Table 1. Quick reference data
V
CC
=18V; T
amb
=25
°
C; R
L
=4
Ω
; 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
V
CC
supply voltage operating
[1]
9 1828V
I
q
quiescent current V
CC
=18V; R
L
= ∞ - 60 100 mA
I
CC(stb)
standby supply current V
CC
=18V;
V
I(VC)
< 0.8 V
- - 150 µA
P
o
output power THD = 10 %; R
L
=4Ω;
V
CC
=18V
7 8.5 - W
THD = 10 %; R
L
=4Ω;
V
CC
=22V
-14-W
THD total harmonic
distortion
P
o
= 1 W - 0.1 0.5 %
G
v(max)
maximum voltage gain V
I(VC)
> 5.0V 25 26 27 dB
∆G
v
voltage gain range 1.5 V < V
I(VC)
< 5.0 V - 80 - dB
SVRR supply voltage ripple
rejection
f=1kHz
[2]
-60-dB
Table 2. Ordering information
Type
number
Package
Name Description Version
TFA9843AJ DBS9P plastic DIL-bent-SIL power package; 9 leads (lead length
12/11 mm); exposed die pad
SOT523 -1