TDA7498L Datasheet, PDF (10/27 Pages) STMicroelectronics – 80 watt + 80 watt dual BTL class-D audio amplifier

Electrical specifications
TDA7498L
Table 6.
Symbol
Electrical specifications (continued)
Parameter
Condition
Min Typ Max Unit
f_SW
f_SWR
Switching frequency
Output switching frequency
Range
Internal oscillator
290 310 330 kHz
With internal oscillator ⁽¹⁾ 250 -
With external oscillator ⁽²⁾ 250 -
400
kHz
400
V_inH
Digital input high (H)
-
V_inL
Digital input low (L)
Pin STBY voltage high (H)
V_STBY
-
Pin STBY voltage low (L)
2.3 -
-
-
2.7 -
-
-
-
V
0.8
-
V
0.5
Pin MUTE voltage high (H)
V_MUTE
-
Pin MUTE voltage low (L)
2.5 -
-
-
-
V
0.8
A_MUTE Mute attenuation
V_MUTE < 0.8 V
-
70 -
dB
1. f_SW = 10⁶ / ((16 * R_OSC + 182) * 4) kHz, f_SYNCLK = 2 * f_SW with R3 = 39 kΩ (see Figure 20.).
2. f_SW = f_SYNCLK / 2 with the external oscillator.
10/27
Doc ID 16504 Rev 3