TDA8922C NXP Semiconductors, TDA8922C Datasheet - Page 14

• Manufacturer Part Number: TDA8922C
• Description: The TDA8922C is a high-efficiency Class D audio power amplifier
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 8.
V
[1]
[2]
[3]
[4]
[5]
[6]
[7]
12. Dynamic characteristics
Table 9.
V
TDA8922C_1
Product data sheet
Symbol
T
Symbol Parameter
Internal oscillator
f
f
External oscillator input or frequency tracking; pin OSC
V
V
f
osc(typ)
osc
track
DD
DD
act(th_fold)
OSC
trip
= 30 V; V
V
V
Unbalance protection activated when V
With respect to SGND (0 V).
The transition between Standby and Mute modes has hysteresis, while the slope of the transition between Mute and Operating modes is
determined by the time-constant of the RC network on pin MODE; see
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.
At a junction temperature of approximately T
T
= 30 V; V
act(th_prot)
DD
SS
is the supply voltage on pins VSSP1, VSSP2, VSSA and VSSD.
is the supply voltage on pins VDDP1, VDDP2 and VDDA.
typical oscillator frequency
oscillator frequency
voltage on pin OSC
trip voltage
tracking frequency
Static characteristics
Dynamic characteristics
Parameter
thermal foldback activation
temperature
, the amplifier switches off.
SS
SS
= 30 V; f
12.1 Switching characteristics
= 30 V; T
osc
Fig 8.
amb
= 350 kHz; T
= 25 C; unless otherwise specified.
…continued
V
Behavior of mode selection pin MODE
O(offset)(mute)
V
O(offset)(on)
DDA
Conditions
R
HIGH-level
V
O
OSC
amb
(V)
> 2
act(th_fold)
= 30.0 k
= 25 C; unless otherwise specified.
0
V
Rev. 01 — 7 September 2009
Standby
SSA
Conditions
closed loop SE voltage gain
reduced with 6 dB
5 C, gain reduction commences and at a junction temperature of approximately
OR V
0.8
SSA
> 2
slope is directly related to the time-constant
Figure
of the RC network on the MODE pin
V
DDA
2.1
.
[1]
8.
Mute
Min
290
250
SGND + 4.5 SGND + 5
-
500
2.9
2
[7]
75 W class-D power amplifier
Min
-
Typ
345
-
SGND + 2.5 -
-
4.2
V
MODE
TDA8922C
Typ
153
On
(V)
© NXP B.V. 2009. All rights reserved.
Max
365
450
SGND + 6 V
900
5.5
010aaa585
Max
-
Unit
14 of 40
C
Unit
kHz
kHz
V
kHz