PCM1820 datasheet(97/130 Pages) TI

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8.6.2.48 DRE_CFG0 Register (Address = 0x6D) [Reset = 0x7B]

DRE_CFG0 is shown in Figure 8-118 and described in Table 8-103.

Return to the Table 8-55.

This register is the dynamic range enhancer (DRE) configuration register 0.

Figure 8-118. DRE_CFG0 Register

DRE_LVL[3:0]

DRE_MAXGAIN[3:0]

R/W-0111b

R/W-1011b

Table 8-103. DRE_CFG0 Register Field Descriptions

Bit

Field

Type

Reset

Description

7-4

DRE_LVL[3:0]

R/W

0111b

DRE trigger signal level threshold.

0d = Input signal level threshold is -12 dB

1d = Input signal level threshold is -18 dB

2d = Input signal level threshold is -24 dB

3d to 6d = Input signal level threshold is as per configuration

7d = Input signal level threshold is -54 dB

8d = Input signal level threshold is -60 dB

9d = Input signal level threshold is -66 dB

10d to 15d = Reserved; Don't use

3-0

DRE_MAXGAIN[3:0]

R/W

1011b

DRE maximum gain allowed.

0d = Maximum gain allowed is 2 dB

1d = Maximum gain allowed is 4 dB

2d = Maximum gain allowed is 6 dB

3d to 10d = Maximum gain allowed is as per configuration

11d = Maximum gain allowed is 24 dB

12d = Maximum gain allowed is 26 dB

13d to 15d = Reserved; Don't use

8.6.2.49 AGC_CFG0 Register (Address = 0x70) [Reset = 0xE7]

AGC_CFG0 is shown in Figure 8-119 and described in Table 8-104.

Return to the Table 8-55.

This register is the automatic gain controller (AGC) configuration register 0.

Figure 8-119. AGC_CFG0 Register

AGC_LVL[3:0]

AGC_MAXGAIN[3:0]

R/W-1110b

R/W-0111b

Table 8-104. AGC_CFG0 Register Field Descriptions

Bit

Field

Type

Reset

Description

7-4

AGC_LVL[3:0]

R/W

1110b

AGC output signal target level.

0d = Output signal target level is -6 dB

1d = Output signal target level is -8 dB

2d = Output signal target level is -10 dB

3d to 13d = Output signal target level is as per configuration

14d = Output signal target level is -34 dB

15d = Output signal target level is -36 dB

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TLV320ADC6120

SBASA92A – DECEMBER 2020 – REVISED JUNE 2021

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PCM1820 Datasheet(PDF) 97 Page - Texas Instruments

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