SCAN921025H, SCAN921226H

SNLS185C – OCTOBER 2004 – REVISED MAY 2013

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Electrical Characteristics (continued)

Over recommended operating supply and temperature ranges unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Units

Input Current

-20

-10

μA

TRST

High Level Output Voltage

2.2

2.6

V

Low Level Output Voltage

0.3

0.5

V

Output Short Circuit Current

-15

-90

-120

mA

Tri-state Output Current

−10

0

+10

μA

Serializer Timing Requirements for TCLK

Over recommended operating supply and temperature ranges unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Units

Transmit Clock Period

12.5

T

50.0

ns

Transmit Clock High Time

0.4T

0.5T

0.6T

ns

Transmit Clock Low Time

0.4T

0.5T

0.6T

ns

TCLK Input Transition Time

3

6

ns

ps

TCLK Input Jitter

150

(RMS)

Serializer Switching Characteristics

Over recommended operating supply and temperature ranges unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Units

Bus LVDS Low-to-High

0.2

0.4

ns

Transition Time

Bus LVDS High-to-Low

Figure 5(1)

0.25

0.4

ns

Transition Time

DIN (0-9) Setup to TCLK

0

ns

DIN (0-9) Hold from TCLK

4.0

ns

Figure 8

DO ± HIGH to

3

10

ns

Tri-state Delay

DO ± LOW to Tri-state

3

10

ns

Delay

DO ± Tri-state to HIGH

Figure 9(2)

5

10

ns

Delay

DO ± Tri-state to LOW

6.5

10

ns

Delay

SYNC Pulse Width

ns

Figure 11

Serializer PLL Lock Time

ns

Serializer Delay

ns

20MHz

-330

140

ps

Deterministic Jitter

-130

-40

+60

ps

80MHz

Random Jitter

6

10

ps (RMS)

(1)

(2)

Because the Serializer is in tri-state mode, the Deserializer will lose PLL lock and have to resynchronize before data transfer.

(3)

8

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