STHDLS101A datasheet(1/24 Pages) STMICROELECTRONICS

部件名	STHDLS101A

功能描述	Enhanced AC coupled HDMI level shifter with configurable HPD output

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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1 / 24 page

June 2009

Doc ID 15756 Rev 1

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24

STHDLS101A

Enhanced AC coupled HDMI level shifter

with configurable HPD output

Features

■ Converts low-swing alternating current (AC)

coupled differential input to high-definition

multimedia interface (HDMI) rev 1.3 compliant

■ HDMI level shifting operation up to 2.7 Gbps

per lane

■ Integrated 50

Ω termination resistors for AC-

coupled differential inputs

■ Input/output transition minimized differential

signaling (TMDS) enable/disable

■ Output slew rate control on TMDS outputs to

minimize electromagnetic interference (EMI)

and eliminate external components such as RC

and choke

■ Fail safe outputs for backdrive protection

■ No re-timing or configuration required

■ Inter-pair output skew < 250 ps, intra-pair

output skew < 10 ps

■ Single power supply of 3.3 V

■ ESD protection: ±6 KV HBM on all I/O pins

■ Integrated display data channel (DDC) level

shifters. Pass-gate voltage limiters allow 3.3 V

termination on graphics and memory controller

hub (GMCH) pins and 5 V DDC termination on

HDMI connector pins

■ Level shifter and configurable output for HPD

signal from HDMI/DVI connector

■ Integrated pull-down resistor on HPD_SINK

and OE_N inputs

Applications

■ Notebooks, PC motherboards and graphic

cards

Description

The STHDLS101A is a high-speed high-definition

multimedia interface (HDMI) level shifter that

converts low-swing AC coupled differential input

to HDMI 1.3 compliant open-drain current

steering RX-terminated differential output.

Through the existing PCI-E pins in the graphics

and memory controller hub (GMCH) of PCs or

notebook motherboards, the pixel clock provides

the required bandwidth (1.65 Gbps, 2.25 Gbps)

for the video supporting 720p, 1080i, 1080p with a

total of 36-bit resolution. The HDMI is multiplexed

onto the PCIe pins in the motherboard where the

AC coupled HDMI at 1.2 V is output by GMCH.

The AC coupled HDMI is then level shifter by this

device to 3.3 V DC coupled HDMI output.

The STHDLS101A supports up to 2.7 Gbps,

which is enough for 12-bits of color depth per

channel, as indicated in HDMI rev 1.3.

The device operates from a single 3.3 V supply

and is available in a 48-pin QFN package.

QFN48

(7x7mm)

Table 1.

Device summary

Order code

Package

Packing

STHDLS101AQTR

QFN48

(7 x 7 x 1 mm)

Tape and reel

www.st.com

类似零件编号 - STHDLS101A

制造商	部件名	数据表	功能描述
STMicroelectronics	STHDLS101	491Kb / 25P	AC coupled HDMI level shifter 01-Dec-2008
	STHDLS101QTR	491Kb / 25P	AC coupled HDMI level shifter 01-Dec-2008
	STHDLS101T	397Kb / 26P	AC coupled HDMI level shifter with configurable HPD output 01-Dec-2008
	STHDLS101TQTR	397Kb / 26P	AC coupled HDMI level shifter with configurable HPD output 01-Dec-2008

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