SLAS366 datasheet(33/58 Pages) TI2

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4–5

Table 4–6. A/D PGA Gain (Continued)

DESCRIPTION

ADC input PGA gain = -23dB

ADC input PGA gain = -24 dB

ADC input PGA gain = -25 dB

ADC input PGA gain = -26 dB

ADC input PGA gain = -27 dB

ADC input PGA gain = -28 dB

ADC input PGA gain = -29 dB

ADC input PGA gain = -30 dB

ADC input PGA gain = -31 dB

ADC input PGA gain = -32 dB

ADC input PGA gain = -33 dB

ADC input PGA gain = -34 dB

ADC input PGA gain = -35 dB

ADC input PGA gain = -36 dB

ADC input PGA gain = -37 dB

ADC input PGA gain = -38 dB

ADC input PGA gain = -39 dB

ADC input PGA gain = -40 dB

ADC input PGA gain = -41 dB

ADC input PGA gain = -42 dB

4.6

Control Register 5B

DAGAIN

R/W

NOTE: R = Read, W = Write

Table 4–7. Control Register 5B Bit Summary

BIT

NAME

RESET

VALUE

FUNCTION

D7-D6

Control

D5-D0

DAGAIN

101010

D/A converter gain (see Table 4–8)

NOTES:

7. In register read operation, first read receives ADC gain value, second read receives DAC gain value, third receives register 5C, and

fourth receives register 5D.

8. PGA default value = 101010b (0dB) for both ADC and DAC.

Table 4–8. D/A PGA Gain

DESCRIPTION

DAC input PGA gain = MUTE

DAC input PGA gain = 20 dB

DAC input PGA gain = 19 dB

DAC input PGA gain = 18 dB

DAC input PGA gain = 17 dB

DAC input PGA gain = 16 dB

DAC input PGA gain = 15 dB

DAC input PGA gain = 14 dB

SLAS366 数据表(PDF) 33 Page - Texas Instruments

SLAS366 数据表(HTML) 33 Page - Texas Instruments

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