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LVDS DRIVE PROGRAMMABILITY

AFE5804

SBOS442A – JUNE 2008 – REVISED SEPTEMBER 2008 ................................................................................................................................................ www.ti.com

ADDRESS

IN HEX

D15

D14

D13

D12

D11

D10

NAME

ILVDS_LCLK<2:0>

ILVDS_FRAME<2:0>

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 14

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 14. Bit Clock Drive Strength(1)

ILVDS_LCLK<2>

ILVDS_LCLK<1>

ILVDS_LCLK<0>

LVDS DRIVE STRENGTH FOR LCLKP AND LCLKM

3.5mA (default)

2.5mA

1.5mA

0.5mA

7.5mA

6.5mA

5.5mA

4.5mA

(1)

Current settings lower than 1.5mA are not recommended.

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