tfa9815t NXP Semiconductors, tfa9815t Datasheet - Page 14

• Manufacturer Part Number: tfa9815t
• Description: Stereo Full-bridge Audio Ampli?er 2 X 17 W
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 10.
V
[1]
[2]
Table 11.
V
Table 12.
[1]
[2]
TFA9815_1
Preliminary data sheet
Symbol
Window Protection (WP)
V
Symbol
Timing PWM output: pins OUT1 and OUT2
t
t
t
Symbol Parameter
P
THD+N
G
V
S/N
SVRR
r
f
w(min)
P
P
po
cs
O
o(RMS)
n(o)
v(cl)
= 12 V;T
= 12 V;T
Measured with respect to V
Current limiting concept: in overcurrent condition no interruption of the audio signal in case of impedance drop.
THD+N is measured in a bandwidth of 20 Hz to 20 kHz, AES17, brick-wall.
Minimum value determined by R5, R10, R17, R22 equalling +1 % and R7, R14, R18, R20 equalling 1 %.
RMS output power
total harmonic
distortion-plus-noise
output power efficiency
closed-loop voltage gain
output noise voltage
signal-to-noise ratio
supply voltage ripple rejection
channel separation
amb
amb
Characteristics
Switching characteristics
AC characteristics measured in typical application
Parameter
output voltage
Parameter
rise time
fall time
minimum pulse width
= 25 ˚C; f
= 25 ˚C; f
12.2 Dynamic characteristics
12.3 AC characteristics measured in typical application
osc
osc
= 550 kHz; typical application diagram
= 550 kHz unless otherwise specified.
SSD
…continued
.
Conditions
V
V
V
V
P
P
P
V
inputs shorted; AES17 brick-wall
V
Operating mode; f
P
P
P
P
P
o
o
o
i
o
o
Conditions
HIGH-level
LOW-level
Conditions
I
I
I
Rev. 01 — 16 December 2008
= 100 mV (RMS); f
O
O
O
= 1 W; f
= 2
= 2
= 10 V (RMS); G
= 1 W; f
= 15 V; R
= 12 V; R
= 12 V; R
= 12 V; R
= 0 A
= 0 A
= 0 A
10 W at 8
18 W at 4
i
i
= 1 kHz
= 1 kHz
L
L
L
L
= 8 ; THD = 10 %
= 8 ; THD = 10 %
= 6 ; THD = 10 %
= 4 ; THD = 10 %
i
= 1 kHz
v(cl)
Figure
i
= 1 kHz
= 20 dB
12, unless otherwise specified.
Min
-
-
-
[1]
[2]
Min
-
-
Typ
10
10
60
Min
15
9
12
17
-
89
88
18.6
-
94
34
55
Audio amplifier 2 x 17 W
Typ
V
V
Typ
16
10
13
18
0.05
91
90
19.3
150
96
45
70
DDA
SSA
Max
-
-
-
© NXP B.V. 2008. All rights reserved.
TFA9815
+ 1
1
Max
-
-
-
-
0.1
-
-
21
-
-
-
-
Max
-
-
Unit
ns
ns
ns
14 of 26
%
%
%
dB
dB
dB
Unit
W
W
W
W
dB
Unit
V
V
V