TLC320AC02 datasheet(35/93 Pages) TI2

35 / 93 page

2–22

2.20.5

The following command contains the amplifier gain-select register address with selection code for the

monitor output (DS05 – DS04), analog input (DS03 – DS02), and analog output (DS01 – DS00)

programmable gains.

DS15 DS14 DS13 DS12 DS11 DS10 DS09 DS08 DS07 DS06 DS05 DS04 DS03 DS02 DS01 DS00

R/W

Control Bits

Monitor output gain = squelch

Monitor output gain = 0 dB

Monitor output gain = – 8 dB

Monitor output gain = – 18 dB

Analog input gain = squelch

Analog input gain = 0 dB

Analog input gain = 6 dB

Analog input gain = 12 dB

Analog output gain = squelch

Analog output gain = 0 dB

Analog output gain = – 6 dB

Analog output gain = – 12 dB

The default value of the monitor output gain is squelch, which corresponds to data bits DS05 and DS04 equal

to 00 (binary).

The default value of the analog input gain is 0 dB, which corresponds to data bits DS03 and DS02 equal

to 01 (binary).

The default value of the analog output gain is 0 dB, which corresponds to data bits DS01 and DS00 equal

to 01 (binary).

The default data value is shown below.

DS07 DS06 DS05 DS04 DS03 DS02 DS01 DS00

2.20.6

The following command loads the analog configuration register with the individual bit functions described

below.

DS15 DS14 DS13 DS12 DS11 DS10 DS09 DS08 DS07 DS06 DS05 DS04 DS03 DS02 DS01 DS00

R/W

Control Bits

Must be set to 0

High-pass filter disabled

High-pass filter enabled

Enable analog input summing

Analog loopback enabled

Enables IN + and IN – (disables AUXIN + and AUXIN –)0

Enables AUXIN + and AUXIN – (disables IN + and IN –)

The default value of the high-pass-filter enable bit is 0, which places the high-pass filter in the signal path.

The default values of DS01 and DS00 are 0 and 1 which enables IN + and IN –.

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