Datasheet

ADS58B18
ADS58B19
SBAS487D – NOVEMBER 2009– REVISED JANUARY 2011 www.ti.com
DESCRIPTION OF SERIAL REGISTERS
Register Address 00h (Default = 00h)
7 6 5 4 3 2 1 0
0 0 0 0 0 0 RESET READOUT
Bits[7:2] Always write '0'
Bit 1 RESET: Software reset applied
This bit resets all internal registers to the default values and self-clears to 0 (default = 1).
Bit 0 READOUT: Serial readout
This bit sets the serial readout of the registers.
0 = Serial readout of registers disabled; the OVR_SDOUT pin functions as an over-voltage
indicator.
1 = Serial readout enabled; the OVR_SDOUT pin functions as a serial data readout. See the Serial
Register Readout section.
Register Address 01h (Default = 00h)
7 6 5 4 3 2 1 0
LVDS SWING 0 0
Bits[7:2] LVDS SWING: LVDS swing programmability
(1)
000000 = Default LVDS swing; ±350mV with external 100Ω termination
011011 = LVDS swing increases to ±410mV
110010 = LVDS swing increases to ±465mV
010100 = LVDS swing increases to ±570mV
111110 = LVDS swing decreases to ±200mV
001111 = LVDS swing decreases to ±125mV
Bits[1:0] Always write '0'
(1) The EN LVDS SWING register bits must be set to enable LVDS swing control.
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