English
Language : 

TDA8946AJ Datasheet, PDF (9/20 Pages) NXP Semiconductors – 2 x 15 W BTL audio amplifier with DC gain control
◁
Philips Semiconductors
TDA8946AJ
2 x 15 W BTL audio amplifier with DC gain control
12. Dynamic characteristics
Table 8: Dynamic characteristics
VCC = 18 V; Tamb = 25 °C; RL = 8 Ω; f = 1 kHz; VMODE = 0 V; Gv = 30 dB; VGC = 4.0 V; measured in test circuit Figure 15;
unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Po
output power
THD = 10%
THD = 0.5%
13
15
-
W
-
11.5
-
W
THD
Gv(max)
Gv(cr)
Vi(rms)
Zi(dif)
Vn(o)
SVRR
Vo(mute)
αcs
|∆Gv|
total harmonic distortion
maximum voltage gain
gain control range
input voltage (RMS value)
differential input impedance
noise output voltage
supply voltage ripple rejection
output voltage
channel separation
channel unbalance
Po = 1 W
0.5 < VGC < 4.0 V
Gv = 0 dB; THD <1%
VGC = 4.0 V
VGC = 1.0 V
fripple = 1 kHz
fripple = 100 Hz to 20 kHz
mute mode
Rsource = 0 Ω
Gv = 0 dB; VGC = 1.8 V
-
29
-
1.0
50
[1] -
[1] -
[2] -
[2] -
[3] -
50
-
0.07
0.5
%
30
31
dB
80
-
dB
-
-
V
65
-
kΩ
120
170
µV
30
-
µV
55
-
dB
55
-
dB
30
50
µV
75
-
dB
-
1
dB
[1] The noise output voltage is measured at the output in a frequency range from 20 Hz to 20 kHz (unweighted), with a source impedance
Rsource = 0 Ω at the input.
[2] Supply voltage ripple rejection is measured at the output, with a source impedance Rsource = 0 Ω at the input. The ripple voltage is a sine
wave with a frequency fripple and an amplitude of 700 mV (RMS), which is applied to the positive supply rail.
[3] Output voltage in mute mode is measured with VGC = 0 V and an input voltage of 1 V (RMS) in a bandwidth of 20 kHz, thus including
noise.
40
handboGokv, halfpage
(dB)
20
MGW613
0
− 20
− 40
− 60
− 80
0
1
2
3
4
VGC (V)
VCC = 18 V
Fig 6. Voltage gain as function of control voltage.
handboVoko, 1h0alfpage
(V)
1
MGW614
10−1
10−2
10−3
10−4
10−5
0
4
8
12
16
20
VMODE (V)
Vi = 30 mV; VCC = 18 V
Fig 7. Output voltage as function of mode voltage.
9397 750 09434
Product data
Rev. 01 — 01 March 2002
© Koninklijke Philips Electronics N.V. 2002. All rights reserved.
9 of 20
 ▷