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Data+

Data-

Clk+

Clk-

Video

Patterm

Generator

800mVppor

1200mVpp

Differential

Coax

Coax

Coax

Coax

Coax

Coax

Coax

Coax

TMDS141

SMA

SMA

SMA

SMA

AVcc

R

T

R

T

AVcc

R

T

R

T

Jitter Test

Instrument

Jitter Test

Instrument

XTP4

XTP2

XTP1

28AWG

HDMICable

Transmissionmedia

HDMIcable

or

FR4PCBtrace

RX

+EQ

OUT

RX

+EQ

OUT

SMA

SMA

SMA

SMA

XTP3

PULSE

GENERATOR

D.U.T.

R

T

R

C

V

IN

V

OUT

3.3V + 10%

V

CC

Vcc

Vcc/2

0.1V

3.3V +

10%

1.5V

V

OL

t

r

t

f

t

PLH

t

PHL

RSCL/RSDA

Input

20%

20%

80%

80%

TSCL/TSDA

Output

PULSE

GENERATOR

D.U.T.

R

T

R

L

=1.67kW

C

V

IN

V

OUT

5V + 10%

V

CC

Vcc

1.5V

0.1V

5V +

10%

Vcc/2

V

OL

t

r

t

f

t

PHL

TSCL/TSDA

Input

20%

20%

80%

80%

RSCL/RSDA

Output

TSCL/TSDA

Input

RSCL/RSDA

Output

Vcc

0.5V

5V +

10%

Vcc/2

t

PLH

TMDS141

SLLS737C – JUNE 2006 – REVISED JUNE 2007

PARAMETER MEASUREMENT INFORMATION (continued)

A.

B.

The residual jitter reflects the total jitter measured at XTP4, subtract the total jitter at XTP1

Figure 7. Jitter Test Circuit

11

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