TDA8922B NXP Semiconductors, TDA8922B Datasheet - Page 12

• Manufacturer Part Number: TDA8922B
• Description: The TDA8922B is a high efficiency class-D audio power amplifier with very lowdissipation
• Manufacturer: NXP Semiconductors

Philips Semiconductors
9397 750 13357
Preliminary data sheet
Table 7:
V
[1]
[2]
[3]
[4]
Symbol
Audio inputs; pins IN1M, IN1P, IN2P and IN2M
V
Amplifier outputs; pins OUT1 and OUT2
Stabilizer output; pin STABI
V
Temperature protection
T
T
P
Fig 7. Behavior of mode selection pin MODE.
V
V
V
V
prot
hys
I
o(stab)
OO(SE)(mute)
OO(SE)(on)
OO(BTL)(mute)
OO(BTL)(on)
= 26 V; f
The circuit is DC adjusted at V
With respect to SGND (0 V).
The transition between Standby and Mute mode contain hysteresis, while the slope of the transition
between Mute and Operating mode is determined by the time-constant on the MODE pin see
DC output offset voltage is applied to the output during the transition between Mute and Operating mode in
a gradual way.The slope of the dV/dt caused by any DC output offset is determined by the time-constant on
the MODE pin.
Static characteristics
V
osc
V
oo
V
O
oo
(mute)
= 317 kHz; T
(V)
(on)
Parameter
DC input voltage
mute SE output offset
voltage
operating SE output
offset voltage
mute BTL output offset
voltage
operating BTL output
offset voltage
stabilizer output
voltage
temperature protection
activation
hysteresis on
temperature protection
0
STBY
Rev. 01 — 1 October 2004
amb
0.8
P
= 25 C; unless otherwise specified.
= 12.5 V to 30 V.
…continued
time-constant on the MODE pin
Conditions
mute and operating;
with respect to V
2.2
slope is directly related to
MUTE
3.0
2
SSP1
50 W class-D power amplifier
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
[2]
[4]
[4]
4.2
V
MODE
Min
-
-
-
-
-
11
-
-
TDA8922B
ON
(V)
5.5
Typ
0
-
-
-
-
12.5 15
150
20
coa021
Max Unit
-
15
150
21
210
-
-
Figure
12 of 32
V
mV
mV
mV
mV
V
7.
C
C