ADS54J20 datasheet(76/117 Pages) TI2

Part #	ADS54J20

Description	ADS54J40 Dual-Channel, 14-Bit, 1.0-GSPS Analog-to-Digital Converter

PDF	117 Pages

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Manufacturer	TI2 [Texas Instruments]

Direct Link	https://www.ti.com

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8.5.2.6 JESD Analog Page (6A00h) Registers

8.5.2.6.1 Register 12h (address = 12h), JESD Analog Page (6A00h)

TBD I separated this register since it is now different from the rest

Figure 8-58. Register 12h

SEL EMP LANE 1

ALWAYS

WRITE 1

R/W-0h

W-0h

Table 8-72. Register 12h Field Descriptions

Bit

Field

Type

Reset

Description

7-2

SEL EMP LANE 1, 0, 2, or 3

R/W

These bits select the amount of de-emphasis for the JESD

output transmitter. The de-emphasis value in dB is measured as

the ratio between the peak value after the signal transition to the

settled value of the voltage in one bit period.

000000 = 0 dB

000001 = –1 dB

000011 = –2 dB

000111 = –4.1 dB

001111 = –6.2 dB

011111 = –8.2 dB

111111 = –11.5 dB

ALWAYS WRITE 1

1 = Always write 1

0 = Must write 0

ADS54J40

SBAS714C – MAY 2015 – REVISED DECEMBER 2020

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ADS54J20 Datasheet(PDF) 76 Page - Texas Instruments