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www.ti.com FEATURES 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 S10 S11 1A 1B S20 S21 2A 2B GND VCC GND 3A 3B S30 S31 4A 4B S40 S41 VCC GND 1Y 1Z 1DE 2Y 2Z 2DE GND VCC GND 3Y 3Z 3DE 4Y 4Z 4DE GND VCC SN65LVDS250DBT ( Marked as LVDS250) SN65LVDT250DBT ( Marked as LVDT250) (TOP VIEW) APPLICATIONS DESCRIPTION 76 - ps/div 75 mV/div V IC = 1.2 V |V ID | = 200 mV 2 Gbps Input = PRBS 2 23 -1 V CC = 3.3 V SN65LVDS250 SN65LVDT250 SLLS594B – MARCH 2004 – REVISED OCTOBER 2004 LVDS 4x4 CROSSPOINT SWITCH Greater Than 2.0 Gbps Operation Nonblocking Architecture Allows Each Output to be Connected to Any Input Pk-Pk Jitter: – 60 ps Typical at 2.0 Gbps – 110 ps Typical at 2.5 Gbps Compatible With ANSI TIA/EIA-644-A LVDS Standard Available Packaging 38-Pin TSSOP 25 mV of Input Voltage Threshold Hysteresis Propagation Delay Times: 800 ps Typical Inputs Electrically Compatible With LVPECL, CML and LVDS Signal Levels Operates From a Single 3.3-V Supply Low Power: 110 mA Typical Integrated 110-Line Termination Resistors Available With SN65LVDT250 EYE PATTERN Clock Buffering/Clock Muxing Wireless Base Stations High-Speed Network Routing Telecom/Datacom The SN65LVDS250 and SN65LVDT250 are 4x4 nonblocking crosspoint switches in a flow-through pin-out allowing for ease in PCB layout. Low-voltage differential signaling (LVDS) is used to achieve a high-speed data throughput while using low power. Each of the output drivers includes a 4:1 multiplexer to allow any input to be routed to any output. Internal signal paths are fully differential to achieve the high signaling speeds while maintaining low signal skews. The SN65LVDT250 incorporates 110-termination resistors for those applications where board space is a premium. The SN65LVDS250 and SN65LVDT250 are characterized for operation from -40°C to 85°C. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Copyright © 2004, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
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LVDS 4x4 CROSSPOINT SWITCH - Texas Instruments crosspoint switches in a flow-through pin-outallowing for ease in PCB layout. Low-voltage differential signaling (LVDS) is used to achieve

Apr 29, 2018

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Page 1: LVDS 4x4 CROSSPOINT SWITCH - Texas Instruments crosspoint switches in a flow-through pin-outallowing for ease in PCB layout. Low-voltage differential signaling (LVDS) is used to achieve

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FEATURES

12

34 5

678

91011

121314

151617

1819

3837

363534

333231

302928

272625

242322

2120

S10S111A1B

S20S21

2A2B

GNDVCCGND

3A3B

S30S31

4A4B

S40S41

VCCGND1Y1Z1DE2Y2Z2DEGNDVCCGND3Y3Z3DE4Y4Z4DEGNDVCC

SN65LVDS250DBT ( Marked as LVDS250)SN65LVDT250DBT ( Marked as LVDT250)

(TOP VIEW)

APPLICATIONS

DESCRIPTION

76 − ps/div

75 m

V/d

iv

VIC= 1.2 V|VID| = 200 mV2 GbpsInput = PRBS 223 −1VCC = 3.3 V

SN65LVDS250SN65LVDT250

SLLS594B–MARCH 2004–REVISED OCTOBER 2004

LVDS 4x4 CROSSPOINT SWITCH

• Greater Than 2.0 Gbps Operation• Nonblocking Architecture Allows Each

Output to be Connected to Any Input• Pk-Pk Jitter:

– 60 ps Typical at 2.0 Gbps– 110 ps Typical at 2.5 Gbps

• Compatible With ANSI TIA/EIA-644-A LVDSStandard

• Available Packaging 38-Pin TSSOP• 25 mV of Input Voltage Threshold Hysteresis• Propagation Delay Times: 800 ps Typical• Inputs Electrically Compatible With LVPECL,

CML and LVDS Signal Levels• Operates From a Single 3.3-V Supply• Low Power: 110 mA Typical• Integrated 110-Ω Line Termination Resistors

Available With SN65LVDT250

EYE PATTERN• Clock Buffering/Clock Muxing• Wireless Base Stations• High-Speed Network Routing• Telecom/Datacom

The SN65LVDS250 and SN65LVDT250 are 4x4nonblocking crosspoint switches in a flow-throughpin-out allowing for ease in PCB layout. Low-voltagedifferential signaling (LVDS) is used to achieve ahigh-speed data throughput while using low power.Each of the output drivers includes a 4:1 multiplexerto allow any input to be routed to any output. Internalsignal paths are fully differential to achieve the highsignaling speeds while maintaining low signal skews.The SN65LVDT250 incorporates 110-Ω terminationresistors for those applications where board space isa premium.

The SN65LVDS250 and SN65LVDT250 arecharacterized for operation from -40°C to 85°C.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of TexasInstruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date. Copyright © 2004, Texas Instruments IncorporatedProducts conform to specifications per the terms of the TexasInstruments standard warranty. Production processing does notnecessarily include testing of all parameters.

Page 2: LVDS 4x4 CROSSPOINT SWITCH - Texas Instruments crosspoint switches in a flow-through pin-outallowing for ease in PCB layout. Low-voltage differential signaling (LVDS) is used to achieve

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1A

1B

1Y

1Z

1DE

2A

2B

2Y

2Z

2DE

3A

3B

3Y

3Z

3DE

4A

4B

4Y

4Z

4DE

4X4MUX

8S10 - S41

Integrated Termination on LVDT Only

SN65LVDS250SN65LVDT250

SLLS594B–MARCH 2004–REVISED OCTOBER 2004

These devices have limited built-in ESD protection. The leads should be shorted together or the deviceplaced in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

LOGIC DIAGRAM

2

Page 3: LVDS 4x4 CROSSPOINT SWITCH - Texas Instruments crosspoint switches in a flow-through pin-outallowing for ease in PCB layout. Low-voltage differential signaling (LVDS) is used to achieve

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EQUIVALENT INPUT AND OUTPUT SCHEMATIC DIAGRAMS

VCC

Y Z

OUTPUT LVDS250

VCC

VCC

300 kΩ

DE 400 Ω

VCC

300 kΩ

400 ΩS10, S41

7 V 7 V

7 V7 V

VCC

VCC VCCA B

INPUT LVDS250

7 V 7 V

SN65LVDS250SN65LVDT250

SLLS594B–MARCH 2004–REVISED OCTOBER 2004

3

Page 4: LVDS 4x4 CROSSPOINT SWITCH - Texas Instruments crosspoint switches in a flow-through pin-outallowing for ease in PCB layout. Low-voltage differential signaling (LVDS) is used to achieve

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PACKAGE DISSIPATION RATINGS

THERMAL CHARACTERISTICS

ABSOLUTE MAXIMUM RATINGS

SN65LVDS250SN65LVDT250

SLLS594B–MARCH 2004–REVISED OCTOBER 2004

Table 1. CROSSPOINT LOGIC TABLES

OUTPUT CHANNEL 1 OUTPUT CHANNEL 2 OUTPUT CHANNEL 3 OUTPUT CHANNEL 4

CONTROL INPUT CONTROL INPUT CONTROL INPUT CONTROL INPUTPINS SELECTED PINS SELECTED PINS SELECTED PINS SELECTED

S10 S11 1Y/1Z S20 S21 2Y/2Z S30 S31 3Y/3Z S40 S41 4Y/4Z

0 0 1A/1B 0 0 1A/1B 0 0 1A/1B 0 0 1A/1B

0 1 2A/2B 0 1 2A/2B 0 1 2A/2B 0 1 2A/2B

1 0 3A/3B 1 0 3A/3B 1 0 3A/3B 1 0 3A/3B

1 1 4A/4B 1 1 4A/4B 1 1 4A/4B 1 1 4A/4B

CIRCUIT BOARD TA≤ 25°C DERATING FACTOR (1) TA = 85°CPACKAGE MODEL POWER RATING ABOVE TA = 25°C POWER RATING

TSSOP (DBT) Low-K (2) 1038 mW 9.0 mW/°C 496 mW

TSSOP (DBT) High-K (3) 1772 mW 15.4 mW/°C 847 mW

(1) This is the inverse of the junction-to-ambient thermal resistance when board-mounded and with no air flow.(2) In accordance with the Low-K thermal metric definitions of EIA/JESD51-6(3) In accordance with the High-K thermal metric definitions of EIA/JESD51-6

PARAMETER TEST CONDITIONS VALUE UNITS

ΘJB Junction-to-board thermal resistance 40.3°C/W

ΘJC Junction-to-case thermal resistance 8.5

VCC = 3.3 V, TA = 25°C, 1 GHz 356 mWPD Device power dissipation

VCC = 3.6 V, TA = 85°C, 1 GHz 522 mW

over operating free-air temperature range unless otherwise noted (1)

UNITS

Supply voltage range, VCC -0.5 V to 4 V

S, DE -0.5 V to 4 V

A, B -0.5 V to 4 VVoltage range (2)

|VA - VB| (LVDT only) 1 V

Y, Z -0.5 V to 4 V

Human body model (3) All pins ±3 kVElectrostatic discharge

Charged-device model (4) All pins ±500 V

Continuous power dissipation See Dissipation Rating Table

(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratingsonly, and functional operation of the device at these or any other conditions beyond those indicated under recommended operatingconditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

(2) All voltage values, except differential I/O bus voltages, are with respect to network ground terminal.(3) Tested in accordance with JEDEC Standard 22, Test Method A114-A.(4) Tested in accordance with JEDEC Standard 22, Test Method C101.

4

Page 5: LVDS 4x4 CROSSPOINT SWITCH - Texas Instruments crosspoint switches in a flow-through pin-outallowing for ease in PCB layout. Low-voltage differential signaling (LVDS) is used to achieve

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RECOMMENDED OPERATING CONDITIONS

TIMING SPECIFICATIONS

INPUT ELECTRICAL CHARACTERISTICS

SN65LVDS250SN65LVDT250

SLLS594B–MARCH 2004–REVISED OCTOBER 2004

MIN NOM MAX UNIT

VCC Supply voltage 3 3.3 3.6 V

VIH High-level input voltage S10-S41, 1DE-4DE 2 VCC V

VIL Low-level input voltage S10-S41, 1DE-4DE 0 0.8 V

LVDS 0.1 1 V|VID| Magnitude of differential input voltage

LVDT 0.1 0.8 V

Input voltage (any combination of common-mode or input signals) 0 3.3 V

TJ Junction temperature 140 °C

TA(1) Operating free-air temperature -40 85 °C

(1) Maximum free-air temperature operation is allowed as long as the device maximum junction temperature is not exceeded.

PARAMETER MIN NOM MAX UNIT

tSET Input to select setup time 0.6 ns

tHOLD Input to select hold time See Figure 7 0.2 ns

tSWITCH Select to switch output 1.2 1.6 ns

over recommended operating conditions unless otherwise noted (1)

PARAMETER TEST CONDITIONS MIN TYP (1) MAX UNIT

VIT+ Positive-going differential input voltage threshold See Figure 1 100 mV

VIT- Negative-going differential input voltage threshold See Figure 1 -100 mV

VID(HYS) Differential input voltage hysteresis 25 mV

1DE-4DE -10IIH High-level input current VIH = 2 V µA

S10-S41 20

1DE-4DE -10IIL Low-level input current VIL = 0.8 V µA

S10-S41 20

VI = 0 V or 3.3 V, second input at 1.2 VII Input current (A or B inputs) -20 20 µA(other input open for LVDT)

VCC≤ 1.5 V, VI = 0 V or 3.3 V, secondII(OFF) Input current (A or B inputs) input at 1.2 V(other input open for -20 20 µA

LVDT)

IIO Input offset current (|IIA - IIB|) (LVDS) VIA = VIB, 0 ≤ VIA≤ 3.3 V -6 6 µA

Termination resistance (LVDT) VID = 300 mV, VIC = 0 V to 3.3 V 90 110 132RT ΩVID = 300 mV, VIC = 0 V to 3.3 V,Termination resistance (LVDT with power-off) 90 110 132VCC = 1.5 V

CI Differential input capacitance 2.5 pF

(1) All typical values are at 25°C and with a 3.3 V supply.

5

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OUTPUT ELECTRICAL CHARACTERISTICS

SWITCHING CHARACTERISTICS

SN65LVDS250SN65LVDT250

SLLS594B–MARCH 2004–REVISED OCTOBER 2004

over recommended operating conditions unless otherwise noted

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

|VOD| Differential output voltage magnitude 247 350 454 mVSee Figure 2VID = ±100 mV∆|VOD| Change in differential output voltage magnitude between logic states -50 50 mV

VOC(SS) Steady-state common-mode output voltage 1.125 1.375 V

Change in steady-state common-mode output voltage between logic∆VOC(SS) See Figure 3 -50 50 mVstates

VOC(PP) Peak-to-peak common-mode output voltage 50 150 mV

ICC Supply current RL=100 Ω 110 145 mA

IOS Short-circuit output current VOY or VOZ = 0 V -27 27 mA

IOSD Differential short circuit output current VOD = 0 V -12 12 mA

IOZ High-impedance output current VO = 0 V or VCC ±1 µA

CO Differential output capacitance 2 pF

over recommended operating conditions unless otherwise noted

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

tPLH Propagation delay time, low-to-high-level output 700 800 1200

tPHL Propagation delay time, high-to-low-level output 700 800 1200See Figure 4 ps

tr Differential output signal rise time (20%-80%) 200 245

tf Differential output signal fall time (20%-80%) 200 245

tsk(p) Pulse skew (|tPHL - tPLH|) (1) 0 50 ps

tsk(o) Channel-to-channel output skew (2) 175 ps

tsk(pp) Part-to-part skew (3) 300 ps

tjit(per) Period jitter, rms (1 standard deviation) (4) See Figure 6 1 3 ps

tjit(cc) Cycle-to-cycle jitter (peak) (5) See Figure 6 8 17 ps

tjit(pp) Peak-to-peak jitteR (6) See Figure 6 60 110 ps

tjit(det) Deterministic jitter, peak-to-peak (7) See Figure 6 48 65 ps

tPHZ Propagation delay, high-level-to-high-impedance output 6

tPLZ Propagation delay, low-level-to-high-impedance output 6See Figure 5 ns

tPZH Propagation delay, high-impedance -to-high-level output 300

tPZL Propagation delay, high-impedance-to-low-level output 300

(1) tsk(p) is the magnitude of the time difference between the tPLH and tPHL of any output of a single device.(2) tsk(o) is the maximum delay time difference between drivers over temperature, VCC, and process.(3) tsk(pp) is the magnitude of the difference in propagation delay times between any specified terminals of two devices when both devices

operate with the same supply voltages, at the same temperature, and have identical packages and test circuits.(4) Input voltage = VID = 200 mV, 50% duty cycle at 1.0 GHz, tr = tf= 50 ps (20% to 80%), measured over 1000 samples.(5) Input voltage = VID = 200 mV, 50% duty cycle at 1.0 GHz, tr = tf= 50 ps (20% to 80%).(6) Input voltage = VID = 200 mV, 223-1 PRBS pattern at 2.0 Gbps, tr = tf = 50 ps (20% to 80%), measured over 200k samples.(7) Input voltage = VID = 200 mV, 27-1 PRBS pattern at 2.0 Gbps, tr= tf = 50 ps (20% to 80%).

6

Page 7: LVDS 4x4 CROSSPOINT SWITCH - Texas Instruments crosspoint switches in a flow-through pin-outallowing for ease in PCB layout. Low-voltage differential signaling (LVDS) is used to achieve

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PARAMETER MEASUREMENT INFORMATION

Y

Z

A

B

VID VOD

VIB

VIA

VOZ

VOY

IIB

IIA

VIA+VIBVIC

2

VOY+VOZ

2

VOC

VOD 100 Ω

3.75 kΩ

3.75 kΩ

_+ 0 V ≤ V(test) ≤ 2.4 V

Y

Z

VOC

49.9 Ω ±1%Y

1 pF

VOC(PP) VOC(SS)

VOC

≈1.4 V

B

A

≈1 V

49.9 Ω ±1%Z

A

VID

B

1.4 V

1 V

tPLH

0.4 V0 V

VIA

VIB

VID

80%

tPHL

20%

tf tr

VOY - VOZ

0 VDifferential

Y

Z

A

B

VID 1 pF

VIB

VIA

VOY

-0.4 V

VOZ

100 ΩVOD

SN65LVDS250SN65LVDT250

SLLS594B–MARCH 2004–REVISED OCTOBER 2004

Figure 1. Voltage and Current Definitions

Figure 2. Differential Output Voltage (VOD) Test Circuit

A. All input pulses are supplied by a generator having the following characteristics: tr or tf≤ 1 ns, pulse-repetition rate(PRR) = 0.5 Mpps, pulse width = 500 ±10 ns; RL = 100Ω ; CL includes instrumentation and fixture capacitance within0,06 mm of the DUT; the measurement of VOC(PP) is made on test equipment with a -3 dB bandwidth of at least 300MHz.

Figure 3. Test Circuit and Definitions fot the Driver Common-Mode Output Voltage

A. All input pulses are supplied by a generator having the following characteristics: tr or tf≤ 0.25 ns, pulse-repetition rate(PRR) = 0.5 Mpps, pulse width = 500 ± 10 ns . CL includes instrumentation and fixture capacitance within 0,06 mm ofthe DUT.

Figure 4. Timing Test Circuit and Waveforms

7

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DE

VOY or VOZ

VOZ or VOY

3 V1.5 V0 V

≅ 1.4 V1.25 V1.2 V

1.2 V1.15 V≅ 1 V

tPZH tPHZ

tPZL tPLZ

Y

Z

1 pF VOY

VOZ

49.9 Ω ±1%

1.2 V

49.9 Ω ±1%

1 V or 1.4 V

1.2 V

DE

Clock Input 0 V

VA

VB1/fo

PRBS Input 0 V

VA

VB

PRBS Output 0 V

VY

VZ

0 V

0 V

0 V

VY - VZ

VY - VZ

VY - VZ

Actual Output

Ideal Output

1/fo

Period Jitter Cycle-to-Cycle Jitter

Peak-to-Peak Jitter

Actual Output

tjit(pp)

tc(n) tc(n) tc(n +1)

tjit(pp) = | tc(n) - 1/fo | tjit(cc) = | tc(n) - tc(n + 1) |

SN65LVDS250SN65LVDT250

SLLS594B–MARCH 2004–REVISED OCTOBER 2004

PARAMETER MEASUREMENT INFORMATION (continued)

A. All input pulses are supplied by a generator having the following characteristics: tr or tf≤ 1 ns, pulse-repetition rate(PRR) = 0.5 Mpps, pulse width = 500 ± 10 ns. CL includes instrumentation and fixture capacitance within 0,06 mm ofthe DUT.

Figure 5. Enable and Disable Time Circuit and Definitions

A. All input pulses are supplied by an Agilent 81250 Stimulus System.

B. The measurement is made on a TEK TDS6604 running TDSJIT3 application software.

Figure 6. Driver Jitter Measurement Waveforms

8

Page 9: LVDS 4x4 CROSSPOINT SWITCH - Texas Instruments crosspoint switches in a flow-through pin-outallowing for ease in PCB layout. Low-voltage differential signaling (LVDS) is used to achieve

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tSET tHOLD

tSWITCH

tSET tHOLD

tSWITCH

Y/Z Y/ZY/Z Y/Z

A/B

A/B

S

OUT

DE

A/B

A/B

OUT

DE

S

Y/Z Y/Z

SN65LVDS250SN65LVDT250

SLLS594B–MARCH 2004–REVISED OCTOBER 2004

PARAMETER MEASUREMENT INFORMATION (continued)

A. tSET and tHOLD times specify that data must be in a stable state before and after mux control switches.

Figure 7. Input to Select for Both Rising and Falling Edge Setup and Hold Times

9

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TYPICAL CHARACTERISTICS

98

103

108

113

118

0 200 400 600 800 1000 1200

I CC

− S

up

ply

Cu

rren

t −

mA

f − Frequency − MHz

VCC = 3.3 V,TA = 25°C,VIC = 1.2 V,|VID| = 200 mV

700

760

820

880

940

1000

0 0.5 1 1.5 2 2.5 3 3.5

tp

d−

Pro

pag

atio

n D

elay

Tim

e −

ps

Vic − Common-Mode Input Voltage − V

tPHL

tPLH

VCC = 3.3 V,TA = 25°C,|VID| = 200 mV,f = 1 MHz

t pd

− P

rop

agat

ion

Del

ay T

ime

− p

s

TA − Free-Air Temperature − °C

600

700

800

900

1000

−45 −25 −5 15 35 55 75 95

tPHL

tPLH

VCC = 3.3 V,VIC = 1.2 V,|VID| = 200 mV,f = 1 MHz

0

5

10

15

20

25

30

0 220 440 660 880 1100

VID = 200 mV VID = 800 mV

VID = 400 mV

Pea

k-to

-Pea

k Ji

tter

− p

s

f − Frequency − MHz

VCC = 3.3 V,TA = 25°CVIC= 400 mV,Input = Clock

0

20

40

60

80

100

120

140

0 440 880 1320 1760 2200

VID = 200 mV

Pea

k-to

-Pea

k Ji

tter

− p

s

Data Rate − Mbps

VCC = 3.3 V,TA = 25°C,VIC = 400 mV,Input = PRBS 223 −1

VID = 800 mV

VID = 400 mV

0

5

10

15

20

25

30

0 220 440 660 880 1100

Pea

k-to

-Pea

k Ji

tter

− p

s

VCC = 3.3 V,TA = 25°C,VIC = 1.2 V,Input = Clock

VID = 800 mV VID = 400 mV

VID = 200 mV

f − Frequency − MHz

0

20

40

60

80

100

120

140

0 440 880 1320 1760 2200

VID = 200 mVPea

k-to

-Pea

k Ji

tter

− p

s

Data Rate − Mbps

VCC = 3.3 V,TA = 25°C,VIC = 1.2 V,Input = PRBS 223 −1

VID = 800 mV VID = 400 mV

0

5

10

15

20

25

30

0 220 440 660 880 1100

Pea

k-to

-Pea

k Ji

tter

− p

s

VCC = 3.3 V,TA = 25°C,VIC = 2.9 V,Input = Clock

VID = 800 mV

VID = 400 mVVID = 200 mV

f − Frequency − MHz

0

20

40

60

80

100

120

140

0 440 880 1320 1760 2200

VID = 200 mV

Pea

k-to

-Pea

k Ji

tter

− p

s

Data Rate − Mbps

VCC = 3.3 V,TA = 25°C,VIC = 2.9 V,Input = PRBS 223 −1

VID = 400 mV

VID = 800 mV

SN65LVDS250SN65LVDT250

SLLS594B–MARCH 2004–REVISED OCTOBER 2004

SUPPLY CURRENT PROPAGATION DELAY TIME PROPAGATION DELAY TIMEvs vs vs

FREQUENCY FREE-AIR TEMPERATURE COMMON-MODE INPUT VOLTAGE

Figure 8. Figure 9. Figure 10.

PEAK-TO-PEAK JITTER PEAK-TO-PEAK JITTER PEAK-TO-PEAK JITTERvs vs vs

FREQUENCY DATA RATE FREQUENCY

Figure 11. Figure 12. Figure 13.

PEAK-TO-PEAK JITTER PEAK-TO-PEAK JITTER PEAK-TO-PEAK JITTERvs vs vs

DATA RATE FREQUENCY DATA RATE

Figure 14. Figure 15. Figure 16.

10

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50

58

66

74

82

90

−40 −20 0 20 40 60 80 100

VCC = 3.3 V,VIC = 1.2 V,|VID| = 200 mV,Input = 2 Gbps PRBS 223 −1

Pea

k-to

-Pea

k Ji

tter

− p

s

TA − Free-Air Temperature − °C

0

20

40

60

80

100

120

0 560 1120 1680 2240 2800

Pea

k-to

-Pea

k Ji

tter

− p

s

Data Rate − Mbps

VCC = 3.3 V,VIC = 1.2 V,|VID| = 200 mV,Input = PRBS 223 −1

0

50

100

150

200

250

300

350

400

0 500 1000 1500 2000 25000

5

10

15

20

25

30

35

40

VO

D−

Dif

fere

nti

al O

utp

ut

Volt

age

− m

V

f − Frequency − MHz

VCC = 3.3 V,VIC = 1.2 V,|VID| = 200 mV,TA = 25°C,Input = Clock

Added Random Jitter

Per

iod

Jit

ter

− p

s

60 − ps/div

75 m

V/d

iv

VIC= 1.2 V, |VID| = 200 mV, 2.5 Gbps,Input = PRBS 223 −1, VCC = 3.3 V

SN65LVDS250SN65LVDT250

SLLS594B–MARCH 2004–REVISED OCTOBER 2004

TYPICAL CHARACTERISTICS (continued)

PEAK-TO-PEAK JITTER PEAK-TO-PEAK JITTERvs vs

FREE-AIR TEMPERATURE DATA RATE

Figure 17. Figure 18.

DIFFERENTIAL OUTPUT VOLTAGEvs

FREQUENCY EYE PATTERN

Figure 19. Figure 20.

11

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APPLICATION INFORMATION

CONFIGURATION EXAMPLES

1Y

1Z

1A

1B

2Y

2Z

2A

2B

3Y

3Z

3A

3B

4Y

4Z

4A

4B

1Y

1Z

1A

1B

2Y

2Z

3Y

3Z

4Y

4Z

1Y

1Z

1A

1B

2Y

2Z

3Y

3Z

3A

3B

4Y

4Z

1Y

1Z

1A

1B

2Y

2Z

3Y

3Z

4A

4B

4Y

4Z

S10 S11

S30 S310

1

0

0

S20 S21

S40 S410

1

1

1

S10 S11

S30 S310

0

0

0

S20 S21

S40 S410

0

0

0

S10 S11

S30 S311

0

1

0

S20 S21

S40 S411

0

1

0

S10 S11

S30 S310

1

0

0

S20 S21

S40 S410

1

0

0

SN65LVDS250SN65LVDT250

SLLS594B–MARCH 2004–REVISED OCTOBER 2004

12

Page 13: LVDS 4x4 CROSSPOINT SWITCH - Texas Instruments crosspoint switches in a flow-through pin-outallowing for ease in PCB layout. Low-voltage differential signaling (LVDS) is used to achieve

www.ti.com

TYPICAL APPLICATION CIRCUITS (ECL, PECL, LVDS, etc.)

3.3 V or 5 V SN65LVDS2503.3 V50 Ω

50 Ω

A

B

50 Ω 50 Ω

VTT

VTT = VCC -2 V

ECL

3.3 V 3.3 V50 Ω

50 Ω

A

B

50 Ω

CML

50 Ω

3.3 V

3.3 V

SN65LVDS250

3.3 V3.3 V

50 Ω A

B50 Ω

ECL

VTT VTT = VCC -2 V

1.5 kΩ1.1 kΩ

3.3 V

SN65LVDS250

3.3 V or 5 V 3.3 V50 Ω

50 Ω

A

B100 ΩLVDS

SN65LVDS250

SN65LVDS250SN65LVDT250

SLLS594B–MARCH 2004–REVISED OCTOBER 2004

APPLICATION INFORMATION (continued)

Figure 21. Low-Voltage Positive Emitter-Coupled Logic (LVPECL)

Figure 22. Current-Mode Logic (CML)

Figure 23. Single-Ended (LVPECL)

Figure 24. Low-Voltage Differential Signaling (LVDS)

13

Page 14: LVDS 4x4 CROSSPOINT SWITCH - Texas Instruments crosspoint switches in a flow-through pin-outallowing for ease in PCB layout. Low-voltage differential signaling (LVDS) is used to achieve

PACKAGE OPTION ADDENDUM

www.ti.com 24-Apr-2015

Addendum-Page 1

PACKAGING INFORMATION

Orderable Device Status(1)

Package Type PackageDrawing

Pins PackageQty

Eco Plan(2)

Lead/Ball Finish(6)

MSL Peak Temp(3)

Op Temp (°C) Device Marking(4/5)

Samples

SN65LVDS250DBT ACTIVE TSSOP DBT 38 50 Green (RoHS& no Sb/Br)

CU NIPDAU Level-2-260C-1 YEAR -40 to 85 LVDS250

SN65LVDS250DBTG4 ACTIVE TSSOP DBT 38 50 Green (RoHS& no Sb/Br)

CU NIPDAU Level-2-260C-1 YEAR -40 to 85 LVDS250

SN65LVDS250DBTR ACTIVE TSSOP DBT 38 2000 Green (RoHS& no Sb/Br)

CU NIPDAU Level-2-260C-1 YEAR -40 to 85 LVDS250

SN65LVDS250DBTRG4 ACTIVE TSSOP DBT 38 2000 Green (RoHS& no Sb/Br)

CU NIPDAU Level-2-260C-1 YEAR -40 to 85 LVDS250

SN65LVDT250DBT ACTIVE TSSOP DBT 38 50 Green (RoHS& no Sb/Br)

CU NIPDAU Level-2-260C-1 YEAR -40 to 85 LVDT250

SN65LVDT250DBTR ACTIVE TSSOP DBT 38 2000 Green (RoHS& no Sb/Br)

CU NIPDAU Level-2-260C-1 YEAR -40 to 85 LVDT250

(1) The marketing status values are defined as follows:ACTIVE: Product device recommended for new designs.LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.PREVIEW: Device has been announced but is not in production. Samples may or may not be available.OBSOLETE: TI has discontinued the production of the device.

(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availabilityinformation and additional product content details.TBD: The Pb-Free/Green conversion plan has not been defined.Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement thatlead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used betweenthe die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weightin homogeneous material)

(3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.

(4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.

(5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuationof the previous line and the two combined represent the entire Device Marking for that device.

Page 15: LVDS 4x4 CROSSPOINT SWITCH - Texas Instruments crosspoint switches in a flow-through pin-outallowing for ease in PCB layout. Low-voltage differential signaling (LVDS) is used to achieve

PACKAGE OPTION ADDENDUM

www.ti.com 24-Apr-2015

Addendum-Page 2

(6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finishvalue exceeds the maximum column width.

Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on informationprovided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken andcontinues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.

In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.

Page 16: LVDS 4x4 CROSSPOINT SWITCH - Texas Instruments crosspoint switches in a flow-through pin-outallowing for ease in PCB layout. Low-voltage differential signaling (LVDS) is used to achieve

TAPE AND REEL INFORMATION

*All dimensions are nominal

Device PackageType

PackageDrawing

Pins SPQ ReelDiameter

(mm)

ReelWidth

W1 (mm)

A0(mm)

B0(mm)

K0(mm)

P1(mm)

W(mm)

Pin1Quadrant

SN65LVDS250DBTR TSSOP DBT 38 2000 330.0 16.4 6.9 10.2 1.8 12.0 16.0 Q1

SN65LVDT250DBTR TSSOP DBT 38 2000 330.0 16.4 6.9 10.2 1.8 12.0 16.0 Q1

PACKAGE MATERIALS INFORMATION

www.ti.com 26-Jan-2013

Pack Materials-Page 1

Page 17: LVDS 4x4 CROSSPOINT SWITCH - Texas Instruments crosspoint switches in a flow-through pin-outallowing for ease in PCB layout. Low-voltage differential signaling (LVDS) is used to achieve

*All dimensions are nominal

Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm)

SN65LVDS250DBTR TSSOP DBT 38 2000 367.0 367.0 38.0

SN65LVDT250DBTR TSSOP DBT 38 2000 367.0 367.0 38.0

PACKAGE MATERIALS INFORMATION

www.ti.com 26-Jan-2013

Pack Materials-Page 2

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Page 20: LVDS 4x4 CROSSPOINT SWITCH - Texas Instruments crosspoint switches in a flow-through pin-outallowing for ease in PCB layout. Low-voltage differential signaling (LVDS) is used to achieve

IMPORTANT NOTICE

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