Datasheet

AFE5804

www.ti.com

SBOS442C –JUNE 2008–REVISED OCTOBER 2011

LVDS DRIVE PROGRAMMABILITY

ADDRESS

IN HEX D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 NAME

X X X ILVDS_LCLK<2:0>

11 X X X ILVDS_FRAME<2:0>

X X X ILVDS_DAT<2:0>

The LVDS drive strength of the bit clock (LCLKP or LCLKM) and the frame clock (FCLKP or FCLKM) can be

individually programmed. The LVDS drive strengths of all the data outputs OUTP and OUTM can also be

programmed to the same value.

All three drive strengths (bit clock, frame clock, and data) are programmed using sets of three bits. Table 15

shows an example of how the drive strength of the bit clock is programmed (the method is similar for the frame

clock and data drive strengths).

Table 15. Bit Clock Drive Strength

(1)

ILVDS_LCLK<2> ILVDS_LCLK<1> ILVDS_LCLK<0> LVDS DRIVE STRENGTH FOR LCLKP AND LCLKM

0 0 0 3.5mA (default)

0 0 1 2.5mA

0 1 0 1.5mA

0 1 1 0.5mA

1 0 0 7.5mA

1 0 1 6.5mA

1 1 0 5.5mA

1 1 1 4.5mA

(1) Current settings lower than 1.5mA are not recommended.