ISD8101 Datasheet, PDF (13/21 Pages) List of Unclassifed Manufacturers – 1.5W Audio Amplifier with Chip Enable

7 APPLICATION DIAGRAMS
7.1 SIMPLE GAIN SETTING
Vin
Cin
Rg _INV
5
INP
4
VREF ₆
Cref
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CE
7
ISD8101
+5Vdc
8
Vdd
0.1µF
1
SPN
100uF
RL
2
SPP
3
GND
ISD8101
50k
Differential Output Gain (SPP − SPN ) = 2x
5k + R_g
By default: Rg = 0Ω,
ISD8101 Differential Output Gain = 20
ISD8101 Differential Output Gain (in dB) = 20 x log (20) = 26dB
Example: Rg = 45kΩ
ISD8101 Differential Output Gain = 2
ISD8101 Differential Output Gain (in dB) = 20 x log (2) = 6dB
ISD8101 Datasheet Rev. 1.8
- 13 -
Nov, 2012