STDEV003ABTR datasheet(12/41 Pages) STMICROELECTRONICS

12 / 41 page

Functional description

STDVE003A

12/41

across the REXT. The differential output driver provides a typical 10 mA current sink

capability, which provides a typical 500 mV voltage drop across a 50

Ω termination resistor.

TMDS voltage levels

The TMDS interface standard is a signaling method intended for point-to-point

communication over a tightly controlled impedance medium. The TMDS standard uses a

lower voltage swing than other common communication standards, achieving higher data

rates with reduced power consumption while reducing EMI emissions and system

susceptibility to noise. The device is capable of detecting differential signals as low as

100 mV within the entire common mode voltage range.

3.2

Operating modes

The OE_N input activates a hardware power down mode. When the power down mode is

active (OE_N = H), all input and output buffers and internal bias circuitry are powered-off

and disabled.

Outputs are tri-stated in power-down mode. When exiting power-down mode, there is a

delay associated with turning on band-references and input/output buffer circuits.

Table 4.

OE_N operating modes

Input

Output

Function

OE_N

IN+

(ports A1, A2 or A3)

IN-

(ports B1, B2 or B3)

OUT+

OUT-

Active mode

Hi-Z

Low power mode

STDEV003ABTR Datasheet(PDF) 12 Page - STMicroelectronics