TDA8920B NXP Semiconductors, TDA8920B Datasheet - Page 13

• Manufacturer Part Number: TDA8920B
• Description: The TDA8920B is a high efficiency class-D audio power amplifier with very lowdissipation
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 7:
V
[1]
[2]
[3]
[4]
12. Dynamic characteristics
Table 8:
V
TDA8920B_2
Product data sheet
Symbol
Temperature protection
T
T
Symbol
Internal oscillator
f
f
External oscillator or frequency tracking
V
V
f
osc
osc(int)
track
P
DD
prot
hys
OSC
OSC(trip)
= 27 V; f
The circuit is DC adjusted at V
With respect to SGND (0 V).
The transition between Standby and Mute mode has hysteresis, while the slope of the transition between Mute and Operating mode is
determined by the time-constant of the RC-network 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 of the RC-network on the MODE pin.
= 27 V; T
Parameter
typical internal oscillator frequency
internal oscillator frequency range
high-level voltage on pin OSC
trip level for tracking on pin OSC
frequency range for tracking
Static characteristics
Switching characteristics
osc
amb
= 317 kHz; T
12.1 Switching characteristics
Parameter
temperature protection activation
hysteresis of temperature protection
= 25 C; unless otherwise specified.
Fig 7. Behavior of mode selection pin MODE
amb
P
= 25 C; unless otherwise specified.
= 12.5 V to 30 V.
…continued
V
V
O
oo(mute)
V
(V)
oo(on)
0
Rev. 02 — 07 November 2005
STBY
Conditions
R
OSC
0.8
= 30.0 k
Conditions
slope is directly related to the time-constant
of the RC-network on the MODE pin
2.2
Figure
MUTE
Min
290
210
SGND + 4.5
-
210
7.
3.0
2
100 W class-D power amplifier
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Typ
317
-
SGND + 5
SGND + 2.5
-
4.2
Min
-
-
V
MODE
TDA8920B
ON
(V)
Typ
150
20
5.5
Max
344
600
SGND + 6
-
600
coa021
Max
-
-
13 of 34
Unit
Unit
kHz
kHz
V
V
kHz
C
C