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TFA9842J/N1,112

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21
Philips Semiconductors
TFA9842J
2-channel audio amplifier (2 x SE or 1 x BTL)
Preliminary data Rev. 01 — 26 April 2004 7 of 21
9397 750 12013
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
9. Limiting values
10. Thermal characteristics
11. Static characteristics
[1] A minimum load for BTL of 16 Ω is required at V
CC
>22V.
[2] With a load connected at the outputs the quiescent supply current will increase.
[3] The DC output voltage with respect to ground is approximately 0.5V
CC
.
[4] ∆V
OUT
= V
OUT1+
− V
OUT2−
Table 6: Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter Conditions Min Max Unit
V
CC
supply voltage operating −0.3 +26 V
no signal −0.3 +28 V
V
I
input voltage −0.3 V
CC
+ 0.3 V
I
ORM
repetitive peak output current - 3 A
T
stg
storage temperature non-operating −55 +150 °C
T
amb
ambient temperature operating −40 +85 °C
P
tot
total power dissipation - 35 W
V
CC(sc)
supply voltage to guarantee short-circuit
protection
-24V
Table 7: Thermal characteristics
Symbol Parameter Conditions Value Unit
R
th(j-a)
thermal resistance from junction to ambient in free air 40 K/W
R
th(j-c)
thermal resistance from junction to case both channels driven 2.0 K/W
Table 8: Static characteristics
V
CC
=17V; T
amb
=25
°
C; R
L
=8
Ω
; V
MODE
=V
CC
; V
i
= 0 V; measured in test circuit Figure 13; unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
V
CC
supply voltage operating
[1]
9 1726V
I
q
quiescent supply current R
L
= ∞
[2]
- 60 100 mA
I
stb
standby supply current V
MODE
=0 --10µA
V
O
DC output voltage
[3]
-9-V
∆V
OUT
differential output voltage offset BTL mode
[4]
- - 200 mV
V
MODE
mode selection input voltage on mode V
CC
− 2.0 - V
CC
V
mute mode 4.5 - V
CC
− 3.5 V
standby mode 0 - 0.8 V
I
MODE
input current on pin MODE 0 < V
MODE
<V
CC
− 3.5 - - 20 µA
Philips Semiconductors
TFA9842J
2-channel audio amplifier (2 x SE or 1 x BTL)
Preliminary data Rev. 01 — 26 April 2004 8 of 21
9397 750 12013
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
12. Dynamic characteristics
[1] The noise output voltage is measured at the output in a frequency range from 20 Hz to 22 kHz (unweighted), with a source impedance
R
source
=0Ω at the input.
[2] Supply voltage ripple rejection is measured at the output, with a source impedance R
source
=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.
[3] Output voltage in mute mode (V
MODE
= 7 V) is measured with an input voltage of 1 V (RMS) in a bandwidth from 20 Hz to 22 kHz,
including noise.
[1] The noise output voltage is measured at the output in a frequency range from 20 Hz to 22 kHz (unweighted), with a source impedance
R
source
=0Ω at the input.
[2] Supply voltage ripple rejection is measured at the output, with a source impedance R
source
=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.
[3] Output voltage in mute mode (V
MODE
= 7 V) is measured with an input voltage of 1 V (RMS) in a bandwidth from 20 Hz to 22 kHz,
including noise.
Table 9: Dynamic characteristics SE
V
CC
=17V; T
amb
=25
°
C; R
L
=4
Ω
; f = 1 kHz; V
MODE
=V
CC
; measured in test circuit Figure 12; unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
P
o
output power THD = 10 %; R
L
=4Ω 7 7.5 - W
THD = 0.5 % R
L
=4Ω - 6.1 - W
THD total harmonic distortion P
o
= 1 W - 0.1 0.5 %
G
v
SE voltage gain 25 26 27 dB
Z
i
input impedance 40 60 - kΩ
V
n(o)
noise output voltage
[1]
- 150 - µV
SVRR supply voltage ripple
rejection
f
ripple
= 1 kHz
[2]
-60-dB
f
ripple
= 100 Hz to 20 kHz
[2]
-60-dB
V
o(mute)
output voltage in mute mode
[3]
- - 150 µV
α
cs
channel separation R
source
=0Ω 50 60 - dB
|G
v
| channel unbalance - - 1 dB
Table 10: Dynamic characteristics BTL
V
CC
=17V; T
amb
=25
°
C; R
L
=8
Ω
; f = 1 kHz; V
MODE
=V
CC
; measured in test circuit Figure 13; unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
P
o
output power THD = 10 %; R
L
=8Ω 14 15 - W
THD = 0.5 %; R
L
=8Ω -14 W
THD total harmonic distortion P
o
= 1 W - 0.05 0.5 %
G
v
BTL voltage gain 31 32 33 dB
Z
i
input impedance 20 30 - kΩ
V
n(o)
noise output voltage
[1]
- 200 - µV
SVRR supply voltage ripple
rejection
f
ripple
= 1 kHz
[2]
-65-dB
f
ripple
= 100 Hz to 20 kHz
[2]
-65-dB
V
o(mute)
output voltage in mute mode
[3]
- - 250 µV
α
cs
channel separation R
source
=0Ω 50 65 - dB
|G
v|
channel unbalance - - 1 dB
Philips Semiconductors
TFA9842J
2-channel audio amplifier (2 x SE or 1 x BTL)
Preliminary data Rev. 01 — 26 April 2004 9 of 21
9397 750 12013
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
BTL; V
i
=50mV; V
CC
=18V.
Fig 4. AC output voltage as function of mode selection voltage.
20
V
MODE
(V)
04812
V
o
(µV)
16
10
7
10
6
10
5
10
4
10
3
10
2
10
1
mce486
THD=10%. THD=10%.
a. SE. b. BTL.
Fig 5. Output power (one channel) as function of supply voltage for various loads.
P
o
(W)
82012 24 28
V
CC
(V)
16
0
40
30
10
20
mdb806
2 Ω
3 Ω
4 Ω
8 Ω
R
L
= 1 Ω
P
o
(W)
82012 24 2816
40
30
10
0
20
mdb805
4 Ω 6 Ω 8 Ω
16 Ω
R
L
= 2 Ω
V
CC
(V)
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21

TFA9842J/N1,112

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Buy TFA9842J/N1,112
Manufacturer:
NXP Semiconductors
Description:
IC AMP AUDIO PWR 15W STER 9SIL
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New from this manufacturer.
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