TDA8922B Datasheet, PDF (12/32 Pages) NXP Semiconductors – 2 X 50 W class-D power amplifier

Philips Semiconductors
TDA8922B
2 × 50 W class-D power amplifier
Table 7: Static characteristics …continued
V_P = ±26 V; f_osc = 317 kHz; T_amb = 25 °C; unless otherwise specified.
Symbol
Parameter
Conditions
Min
Audio inputs; pins IN1M, IN1P, IN2P and IN2M
V_I
DC input voltage
[2] _-
Amplifier outputs; pins OUT1 and OUT2
V_OO(SE)(mute)
mute SE output offset
-
voltage
V_OO(SE)(on)
operating SE output
[4] _-
offset voltage
V_{OO(BTL)(mute)} mute BTL output offset
-
voltage
V_OO(BTL)(on)
operating BTL output
[4] _-
offset voltage
Stabilizer output; pin STABI
V_o(stab)
stabilizer output
voltage
Temperature protection
mute and operating;
11
with respect to V_SSP1
T_prot
temperature protection
-
activation
T_hys
hysteresis on
-
temperature protection
Typ Max Unit
0- V
- 15 mV
- 150 mV
- 21 mV
- 210 mV
12.5 15 V
150 - °C
20 - °C
[1] The circuit is DC adjusted at V_P = ±12.5 V to ±30 V.
[2] With respect to SGND (0 V).
[3] 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 Figure 7.
[4] 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.
V_O (V)
V_oo (on)
STBY
V_oo (mute)
slope is directly related to
time-constant on the MODE pin
MUTE
ON
0
0.8
2.2
3.0
Fig 7. Behavior of mode selection pin MODE.
4.2
5.5
V_MODE (V)
coa021
9397 750 13357
Preliminary data sheet
Rev. 01 — 1 October 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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