DS90CP02 datasheet(6/15 Pages) TI1

Part #	DS90CP02

Description	DS90CP02 1.5 Gbps 2x2 LVDS Crosspoint Switch

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Manufacturer	TI1 [Texas Instruments]

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DS90CP02

SNLS267 – NOVEMBER 2008

www.ti.com

Electrical Characteristics

Over recommended operating supply and temperature ranges unless other specified.

Typ

Symbol

Parameter

Conditions

Min

Max

Units

(1)

LVTTL DC SPECIFICATIONS (SEL0, SEL1, EN1, EN2)

VIH

High Level Input Voltage

2.0

VDD

V

VIL

Low Level Input Voltage

GND

0.8

V

IIH

High Level Input Current

VIN = VDD = VDDMAX

−10

+10

µA

IIL

Low Level Input Current

VIN = VSS, VDD = VDDMAX

−10

+10

µA

CIN1

Input Capacitance

Any Digital Input Pin to VSS

3.5

pF

VCL

Input Clamp Voltage

ICL = −18 mA

−1.5

−0.8

V

LVDS INPUT DC SPECIFICATIONS (IN0±, IN1±)

VTH

Differential Input High Threshold (2)

VCM = 0.8V or 1.2V or 3.55V, VDD = 3.6V

0

100

mV

VTL

Differential Input Low Threshold

VCM = 0.8V or 1.2V or 3.55V, VDD = 3.6V

−100

0

mV

VID

Differential Input Voltage

VCM = 0.8V to 3.55V, VDD = 3.6V

100

mV

VCMR

Common Mode Voltage Range

VID = 150 mV, VDD = 3.6V

0.05

3.55

V

CIN2

Input Capacitance

IN+ or IN

− to VSS

3.5

pF

IIN

Input Current

VIN = 3.6V, VDD = VDDMAX or 0V

−10

+10

µA

VIN = 0V, VDD = VDDMAX or 0V

−10

+10

µA

LVDS OUTPUT DC SPECIFICATIONS (OUT0±, OUT1±)

VOD

Differential Output Voltage,

RL = 100Ω between OUT+ and OUT−

250

400

575

mV

0% Pre-emphasis (2)

ΔVOD

Change in VOD between

−35

35

mV

Complementary States

VOS

Offset Voltage (3)

1.09

1.25

1.475

V

ΔVOS

Change in VOS between

−35

35

mV

Complementary States

IOS

Output Short Circuit Current, One

OUT+ or OUT

− Short to GND

−60

-90

mA

Complementary Output

COUT

Output Capacitance

OUT+ or OUT

− to GND when TRI-

5.5

pF

STATE

SUPPLY CURRENT (Static)

ICC0

Supply Current

All inputs and outputs enabled and

active, terminated with differential load of

42

60

mA

100

Ω between OUT+ and OUT-.

ICC1

Supply Current - one channel

Single channel crossover switch or single

22

30

mA

powered down

channel repeater modes (1 channel

active, one channel in power down mode)

ICC2

Supply Current - one input powered

Splitter mode (One input powered down,

30

40

mA

down

both outputs active)

ICCZ

TRI-STATE Supply Current

Both input/output Channels in Power

1.4

2.5

mA

Down Mode

SWITCHING CHARACTERISTICS—LVDS OUTPUTS (Figure 4 Figure 5)

tLHT

Differential Low to High Transition

Use an alternating 1 and 0 pattern at 200

70

150

215

ps

Time

Mb/s, measure between 20% and 80% of

VOD.

tHLT

Differential High to Low Transition

50

135

180

ps

Time

tPLHD

Differential Low to High Propagation

Use an alternating 1 and 0 pattern at 200

0.5

2.4

3.5

ns

Delay

Mb/s, measure at 50% VOD between

input to output.

tPHLD

Differential High to Low Propagation

0.5

2.4

3.5

ns

Delay

tSKD1

Pulse Skew

|tPLHD–tPHLD|

55

120

ps

(1)

Typical parameters are measured at VDD = 3.3V, TA = 25°C. They are for reference purposes, and are not production-tested.

(2)

Differential output voltage VOD is defined as ABS(OUT+–OUT−). Differential input voltage VID is defined as ABS(IN+–IN−).

(3)

Output offset voltage VOS is defined as the average of the LVDS single-ended output voltages at logic high and logic low states.

6

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