Sure Electronics PAM8803, User Manual

Page: 16 / 22

Hardware Detail
FIGURE 2-14 VOLUME CONTROL (AA-AB32131)
TABLE 2-8 VOLUME CONTROL (AA-AB32131)
Connector Mark Description
SW1 UP Tactile Switch for Volume Increase
SW2 DOWN Tactile Switch for Volume Decrease
VDD 4.2V Voltage Output
GND GND
UP
Volume Increase Input (Low Level Valid)
J5
DOWN Volume Decrease Input (Low Level Valid)
TABLE 2-9 CORRESPONDING GAIN OF EACH STEP OF VOLUME CONTROL
Step Gain(dB) Step Gain(dB) Step Gain(dB) Step Gain(dB)
1 -75.0 17 4.8 33 11.2 49 17.6
2 -39.7 18 5.1 34 11.6 50 18.0
3 -34.0 19 5.5 35 12.0 51 18.4
4 -28.2 20 5.9 36 12.3 52 18.8
5 -22.4 21 6.3 37 12.7 53 19.2
6 -16.5 22 6.7 38 13.2 54 19.6
7 -10.5 23 7.1 39 13.6 55 20.0
8 -8.0 24 7.5 40 14.0 56 20.4
9 -5.5 25 7.9 41 14.4 57 20.9
10 -2.9 26 8.3 42 14.8 58 21.3
11 -0.4 27 8.7 43 15.2 59 21.7
12 1.1 28 9.1 44 15.6 60 22.1
13 2.6 29 9.6 45 16.0 61 22.5
14 3.6 30 10.0 46 16.4 62 22.9
15 4.0 31 10.4 47 16.8 63 23.4
16 4.4 32 10.7 48 17.2 64 23.8
©
2004-2010 Sure Electronics Inc.
AA-AB32131&AA-AB32133_Ver1.0_Page 13