Chapter 3. Electrical Characteristics - Sure Electronics TDA7498 User Manual

Chapter 3. Electrical Characteristics

Following table lists all typical data of the Amp board. For full specification, please refer to
the data sheet of ST's TDA7498 chip.
TABLE 3-1 ELECTRICAL CHARACTERISTICS
Parameter
Supply Voltage
Quiescent Current
（Powered by 19V）
Input Sensitivity
（AA-AB32189）
Input Sensitivity
（AA-AB32174）
Input Sensitivity
（AA-AB32165）
Gain(SW1 Setting)
Frequency Range
Efficiency
Input Impedance
Load
Operating Temperature
© 2004-2011 Sure Electronics Inc.
CLASS D AUDIO AMPLIFIER
Condition
AA-AB32189
AA-AB32174
AA-AB32165
FAN ON,STBY
Disable
FAN ON,STBY
Enable
FAN OFF,STBY
Disable
FAN OFF,STBY
Enable
25.6dB
31.6dB
35.1dB
37.6dB
25.6dB
31.6dB
35.1dB
37.6dB
25.6dB
31.6dB
35.1dB
37.6dB
K1 ON, K2 ON
K1 ON, K2 OFF
K1 OFF, K2 ON
K1 OFF, K2 OFF
-
Both channels
output rating
power.
- 48K ohm
-
-
AA-AB32189 & AA-AB32174 & AA-AB34165_Ver1.0_Page 9
BOARD - TDA7498
USER'S GUIDE
Min. Typ.
36V
14V 24V
16V
- 90mA
- 50mA
- 40 mA
10 mA
1280mV
640mV
-
430mV
323mV
910mV
450mV
-
300mV
220mV
640mV
320mV
-
210mV
160mV
24.6 25.6
30.6 31.6
34.1 35.1
36.6 37.6
20Hz to 20KHz（±3dB）
- >90%
60K ohm
- 6 ohm
0℃ 20℃
Max.
40V
27V
19V
-
-
-
-
-
26.6
32.6
36.1
38.6
-
-
-
50℃