TFA9842AJ Philips, TFA9842AJ Datasheet - Page 8

• Manufacturer Part Number: TFA9842AJ
• Description: 7.5W Stereo Power Amplifier
• Manufacturer: Philips

www.DataSheet4U.com
Philips Semiconductors
TFA9842AJ_1
Preliminary specification
Fig 3. Voltage gain as a function of volume control
Fig 5. Total harmonic distortion-plus-noise as a
THD N
(dB)
(%)
G
10
10
100
150
V
10
50
50
10
0
10
1
2
1
2
V
voltage
V
function of output power
0
CC
CC
1
= 17 V
= 17 V; SE; f = 1 kHz; R
2.0
1
[2]
[3]
Supply voltage ripple rejection is measured at the output, with a source impedance Z
and with a frequency range from 20 Hz to 22 kHz (unweighted). The ripple voltage is a sine wave with a
frequency f
Output voltage in Mute mode (V
to 22 kHz, so including noise.
L
= 4
4.0
10
ripple
V
P o (W)
I(VC)
001aaa419
001aae340
and an amplitude of 300 mV (RMS), which is applied to the positive supply rail.
(V)
10
6.0
Rev. 01 — 28 April 2006
2
I(VC)
= 1.35 V) and an input voltage of 1 V (RMS) in a bandwidth from 20 Hz
Fig 4. Output power (one channel) as a function of
Fig 6. Total harmonic distortion-plus-noise as a
7.5 W stereo power amplifier with volume control
THD N
(W)
(%)
P
10
10
o
40
30
20
10
10
0
1
1
2
THD = 10 %
supply voltage for various SE loads
V
function of frequency
10
8
CC
R
= 17 V; SE; P
L
= 1
12
10
2
o
16
= 1 W; R
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
2
10
3
20
L
TFA9842AJ
3
= 4
10
4
4
24
S
001aaa446
001aaa445
8
V
= 0
f (Hz)
CC
(V)
at the input
10
28
5
8 of 18