TDA8954 NXP Semiconductors, TDA8954 Datasheet - Page 20

• Manufacturer Part Number: TDA8954
• Description: The TDA8954 is a stereo or mono high–efficiency Class D audio power amplifier in asingle IC featuring low power dissipation
• Manufacturer: NXP Semiconductors

NXP Semiconductors
[6]
13. Dynamic characteristics
Table 10.
V
[1]
[2]
TDA8954_1
Product data sheet
Symbol
Internal oscillator
f
f
External oscillator input or frequency tracking; pin OSC
V
V
f
Z
C
t
osc(typ)
osc
track
r(i)
DD
i
OSC
trip
i
DC output offset voltage is gradually applied to the output during the transition between Mute and Operating modes. The slope caused
by any DC output offset is determined by the time-constant of the RC network on pin MODE.
When using an external oscillator, the frequency f
(250 kHz minimum, 500 kHz maximum) due to the internal clock divider; see
When t
= 41 V; V
r(i)
Dynamic characteristics
Parameter
typical oscillator frequency
oscillator frequency
voltage on pin OSC
trip voltage
tracking frequency
input impedance
input capacitance
input rise time
> 100 ns, the output noise floor will increase.
SS
13.1 Switching characteristics
=
−
41 V; T
Fig 11.
amb
= 25
°
Behavior of mode selection pin MODE
C; unless otherwise specified.
Conditions
R
HIGH-level
from SGND + 0 V to
SGND + 5 V
V
O(offset)(mute)
OSC
V
O(offset)(on)
track
Rev. 01 — 24 December 2009
= 30.0 kΩ
V
(500 kHz minimum, 1000 kHz maximum) will result in a PWM frequency f
O
[V]
0
Slope is directly related to the time constant
0.8
of the RC network on the MODE pin
2.2
[1]
[2]
3.0
Section
Min
290
250
SGND + 4.5
-
500
1
-
-
V
MODE
4.2
8.3.
[V]
2 × 210 W class-D power amplifier
5.5
Typ
335
-
SGND + 5
SGND + 2.5
-
-
-
-
6.6
010aaa564
TDA8954
Max
365
450
SGND + 6
-
1000
-
15
100
© NXP B.V. 2009. All rights reserved.
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osc
Unit
kHz
kHz
V
V
kHz
MΩ
pF
ns