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APPLICATION INFORMATION

INTERNAL BUFFER GAIN AND VOLUME GAIN

TPA6010A4

SLOS268B – JUNE 2000 – REVISED AUGUST 2004

The typical voltage and gain levels are shown in Table 1 and Table 2.

Table 1. BUFFGAIN Voltage and Gain Values

BUFFGAIN (Terminal 24)

Internal Gain (dB)

DOCKOUT Gain (dB)

0.00 – 0.20

0.16 – 0.00

14

8

0.21 – 0.31

0.27 – 0.17

12

6

0.32 – 0.42

0.38 – 0.28

10

4

0.43 – 0.54

0.50 – 0.39

8

2

0.55 – 0.65

0.61 – 0.51

6

0

0.66 – 0.76

0.72 – 0.62

4

-2

0.77 – 0.88

0.84 – 0.73

2

-4

0.89 – 0.99

0.96 – 0.85

0

-6

1.00 – 1.11

1.07 – 0.97

-2

-8

1.12 – 1.22

1.19 – 1.08

-4

-10

1.23 – 1.34

1.30 – 1.20

-6

-12

1.35 – 1.45

1.42 – 1.31

-8

-14

1.46 – 1.56

1.53 – 1.43

-10

-16

1.57 – 1.68

1.64 – 1.54

-12

-18

1.69 – 1.79

1.76 – 1.65

-14

-20

1.80 – 1.91

1.88 – 1.77

-16

-22

1.92 – 2.02

1.99 – 1.89

-18

-24

2.03 – 2.14

2.11 – 2.00

-20

-26

2.15 – 2.25

2.23 – 2.12

-22

-28

2.26 – 2.37

2.34 – 2.24

-24

-30

2.38 – 2.48

2.47 – 2.35

-26

-32

2.49 – 2.60

2.57 – 2.46

-28

-34

2.61 – 2.71

2.69 – 2.58

-30

-36

2.72 – 2.83

2.81 – 2.70

-32

-38

2.84 – 2.95

2.92 – 2.82

-34

-40

2.96 – 3.06

3.04 – 2.93

-36

-42

3.07 – 3.18

3.15 – 3.05

-38

-44

3.19 – 3.29

3.27 – 3.16

-40

-46

3.30 – 3.41

3.39 – 3.28

-42

-48

3.42 – 3.52

3.50 – 3.40

-44

-50

3.53 – 3.63

3.62 – 3.51

-46

-52

3.64 – 5.00

5.00 – 3.63

-75

-81

(1)

Typical gain values can vary by

±2 dB.

(2)

To set the Internal and DOCKOUT gain to a fixed value upon power up, use the appropriate voltage range in the Decreasing Voltage

column.

(3)

For best results, set the voltage to the middle of the appropriate voltage range.

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