Datasheet STLVDS3487BDR, STLVDS3487BTR, STLVDS3487BD, STLVDS31BDR, STLVDS31BTR Datasheet (SGS Thomson Microelectronics)

1/13May 2003

■ MEETS OR EXCEEDS THE

REQUIREMENTS OF ANSI TIA/EIA-644
STANDARD

■ LOW VOLTAGE DIFFERENTIAL SIGNALING

WITH TYPICAL OUTPUT VOLTAGE OF
350mV AND A 100Ω LOAD

■ TYPICAL OUTPUT VOLTAGE RISE AND

FALL TIMES OF 750ps (400Mbps)

■ TYPICAL PROPAGATION DELAY TIMES OF

1.7ns

■ OPERATES FROM A SINGLE 3.3V SUPPLY

■ POWER DISSIPATION 25mW TYPICAL PER

DRIVER AT 200MHz

■ DRIVER AT HIGH IMPEDANCE WHEN

DISABLEDORWITHV

CC

=0V

■ PIN COMPATIBLE WITH THE AM26LS31,

SN65LVD31

■ LOW VOLTAGE TTL (LVTTL) LOGIC INPUT

LEVELS

DESCRIPTION

The STLVDS31 is a quad differential line drivers
that implements the electrical characteristics of
low voltage differential signaling (LVDS). This
signaling technique lowers the output voltage
levels of 5V differential standard levels (such as
TIA/EIA-422B) to reduce the power, increase the
switching speeds and allows operations with a

3.3V supply rail. Any of the four current mode
drivers will deliver a minimum differential output
voltage magnitude of 247m V into a 100Ω load
when enabled.
The intended application of this device and
signalling technique is for point-to-point baseband
data transmission over controlled impedance
media approximat ely 100Ω. The transmission
media may be printed circuit board traces,
backplanes or cables. The ultimate rate and
distance of data transfer is dependent upon the
attenuation characte ristics of the media and noise
coupling to the environment.
The STLVDS31 is characterized for op eration
from -40°C to 85°C.

ORDERING CODES

Type

Temperature

Range

Package Comments

STLVDS31BD -40 to 85 °C SO-16 (Tube) 50parts per tube / 20tube per box
STLVDS31BDR -40 to 85 °C SO-16 (Tape & Reel) 2500 parts per reel
STLVDS31BTR -40 to 85 °C TSSOP16 (Tape & Reel) 2500 parts per reel

STLVDS31

HIGH SPEED

DIFFERENTIAL LINE DRIVERS

SOP TSSOP

STLVDS31

2/13

PIN CONFIGURATION

PIN DESCRIPTION

LOGIC DIAGRAM AND LOGIC SYMBOL

PlN N° SYMBOL NAME AND FUNCTION

1, 7, 9, 15 1A to 4A Driver Inputs
2, 6, 10, 14 1Y to 4Y Driver Outputs
3, 5, 11, 13 1Z to 4Z Driver Outputs

4 G Enable

12 G

Enable

8 GND Ground

16

V

CC

Supply Voltage

STLVDS31

3/13

TRUTH TABLE

L=Low level, H=High Level, X=Don’t care, Z= High Impedance

ABSOLUTE MAXIMUM RATINGS

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is
not implied.
Note 1: All voltages except differential I/O bus voltage, are with respect to the network ground terminal.

RECOMMENDED OPERATING CONDITIONS

INPUT ENABLES OUTPUTS

AGG

YZ

HHXHL

LHXLH

HXLHL

LXLLH

XLHZZ
OPEN H X L H
OPEN X L L H

Symbol Parameter Value Unit

V

CC

Supply Voltage (Note 1)

-0.5 to 4.6 V

V

I

DC Input Voltage -0.5 to (VCC+ 0.5)

V

T

stg

Storage Temperature Range

-65 to +150 °C

Symbol Parameter Min. Typ. Max. Unit

V

CC

Supply Voltage 3.0 3.3 3.6 V

V

IH

HIGH Level Input Voltage 2.0 V

V

ILI

LOW Level Input Voltage 0.8 V

T

A

Operating Temperature Range

-40

85

°C

STLVDS31

4/13

ELECTRICAL CHARACTERISTICS (Over recommended operating conditions unless otherwise noted.
All typical values are at T

A

= 25°C, and VCC=3.3V)

Symbol Parameter Test Conditions Min. Typ. Max. Unit

V

OD

Differential Output Voltage RL= 100Ω Fig. 2 247 350 454 mV

∆V

OD

Change in Differential
Output Voltage Between
Logic State

-50 50 mV

∆V

OC(SS)

Change in Steady-state
Common Mode Output
Voltage Between Logic
State

Fig. 3 1.125 1.2 1.375 V

V

OC(SS)

Steady-state Common
Mode Output Voltage

Fig. 3 -50 50 mV

V

OC(PP)

Peak to Peak Common
mode Output Voltage

80 150 mV

I

CC

Supply Current VIN= 0.8V or 2V, Enabled, No Load 11.5 20 mA

V

IN

= 0.8V or 2V, Enabled, RL=100Ω 25 35 mA

V

IN

= 0 or VCC, Disabled 0.3 1 mA

I

IH

High Level Input Current VIH=2V 4 20 µA

I

IL

Low Level Input Current VIL= 0.8V 0.6 10 µA

I

SC

Short Circuit Output Current V

O(Y)

or V

O(Z)

= 0V 6.1 -24 mA

V

OD

=0 ± 12 mA

I

OZ

High Impedance Output
Current

VO= 0 or 2.4V ± 1 µA

I

OFF

Power OFF Output Current VCC=0 VO= 2.4V ± 1 µA

C

IN

Input Capacitance 3 pF

STLVDS31

5/13

SWITCHING CHARACTERISTICS (Unless otherwise noted. Typical values are referred to TA=25°C
and V

CC

=3.3V)

Note 1: t

sk(O)

is themaximum delaytime differencebetween drivers on the samedevice.

Note 2: RS-232 IN to TTL-CMOS OUT (from 50% to 50%)

Figure1 : Voltage and Current Definitions

Symbol Parameter Test Conditions Min. Typ. Max. Unit

t

PLH

Propagation Delay Time,
Low to High Output

RL=100Ω CL= 10pF
Fig. 2

0.5 1.4 2 ns

t

PHL

Propagation Delay Time,
High to Low Output

1 1.7 2.5 ns

t

r

Differential Output Signal
Rise Time

0.4 0.5 0.6 ns

t

f

Differential Output Signal
Fall Time

0.4 0.5 0.6 ns

t

sk(P)

Pulse Skew (|t

THL=tTLH

|) 0.3 0.6 ns

t

sk(O)

Channel to Channel Output
Skew (note1)

0 0.3 ns

t

PZH

Propagation Delay Time,
High Impedance to High
Level Output

Fig. 4 5.4 15 ns

t

PZL

Propagation Delay Time,
High Impedance to Low
Level Output

2.5 15 ns

t

PHZ

Propagation Delay Time,
High Level to High
Impedance Output

8.1 15 ns

t

PLZ

Propagation Delay Time,
Low Level to High
Impedance Output

7.3 15 ns

STLVDS31

6/13

Figure 2 : Test Circuit, Timing A nd Voltage Definitions For Differential Output Signal

Note A: All input pulse are supplied by a generator having the following characteristics: tror tf≤ 1ns, pulse repetition rate (PRR) = 50Mpps,
pulsewidth = 10 ± 0.2ns.
Note B: C

L

includes instrumentation and fixture capacitance within 6mm of the D.U.T.

Figure 3 : Test Circuit And Definitions For The Driver Common Mode Out put Voltage

Note A: All input pulse are supplied by a generator having the following characteristics: tror tf≤ 1ns, pulse repetition rate (PRR) = 50Mpps,
pulsewidth = 10 ± 0.2ns.
Note B: C

L

includes instrumentation and fixture capacitance within 6mm of the D.U.T

Note C: The measurement of VOC(PP) is made on test equipment with a -3dB bandwidth of at least 300MHz

STLVDS31

7/13

Figure4 : Enable AndDisable Time Test Circuit And Waveform

Note A: All input pulse are supplied by a generator having the following characteristics: tror tf≤ 1ns, pulse repetition rate (PRR) = 0.5Mpps,
pulse width = 500 ± 10ms.

Note B: C

L

includes instrumentation and fixture capacitancewithin 6mm of theD.U.T.

STLVDS31

8/13

TYPICAL PERFORMANCE CHARACTE RISTICS (unless otherwise specified Tj=25°C)
Figure5 : Supply Current vs Temperature

Figure6 : Supply Current vs Temperature

Figure7 : Propagation D elay Enable to Output

Figure8 : Propagation D elay Time

Figure9 : Differential Output Signal

STLVDS31

9/13

DIM.

mm. inch

MIN. TYP MAX. MIN. TYP. MAX.

A 1.75 0.068
a1 0.1 0.2 0.004 0.008
a2 1.65 0.064

b 0.35 0.46 0.013 0.018
b1 0.19 0.25 0.007 0.010

C 0.5 0.019
c1 45˚ (typ.)

D 9.8 10 0.385 0.393

E 5.8 6.2 0.228 0.244

e 1.27 0.050
e3 8.89 0.350

F 3.8 4.0 0.149 0.157

G 4.6 5.3 0.181 0.208

L 0.5 1. 27 0.019 0.050

M 0.62 0.024

S8 ˚ (max.)

SO-16 MECHANICAL DATA

PO13H

STLVDS31

10/13

DIM.

mm. inch

MIN. TYP MAX. MIN. TYP. MAX.

A 1.2 0.047

A1 0.05 0.15 0.002 0.004 0.006

A2 0.8 1 1.05 0.031 0.039 0.041

b 0.19 0.30 0.007 0.012

c 0.09 0.20 0.004 0.0079

D 4.9 5 5.1 0.193 0.197 0.201

E 6.2 6.4 6.6 0.244 0.252 0.260

E1 4.3 4.4 4.48 0.169 0.173 0.176

e 0.65 BSC 0.0256 BSC

K0˚ 8˚0˚ 8˚

L 0.45 0.60 0.75 0.018 0.024 0.030

TSSOP16 MECHANICAL DATA

c

E

b

A2

A

E1

D

1

PIN 1 IDENTIFICATION

A1

L

K

e

0080338D

STLVDS31

11/13

DIM.

mm. inch

MIN. TYP MAX. MIN. TYP. MAX.

A 330 12.992
C 12.8 13.2 0.504 0.519
D 20.2 0.795
N 60 2.362

T 22.4 0.882
Ao 6.45 6.65 0.254 0.262
Bo 10.3 10.5 0.406 0.414
Ko 2.1 2.3 0.082 0.090
Po 3.9 4.1 0.153 0.161

P 7.9 8.1 0.311 0.319

Tape & Reel SO-16 MECHANICAL DATA

STLVDS31

12/13

DIM.

mm. inch

MIN. TYP MAX. MIN. TYP. MAX.

A 330 12.992

C 12.8 13.2 0.504 0.519

D 20.2 0.795

N 60 2.362

T 22.4 0.882
Ao 6.7 6.9 0.264 0.272
Bo 5.3 5.5 0.209 0.217
Ko 1.6 1.8 0.063 0.071
Po 3.9 4.1 0.153 0.161

P 7.9 8.1 0.311 0.319

Tape & Reel TSSOP16 MECHANICAL DATA

STLVDS31

13/13

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