NSC CLC001AJE, CLC001AJE-TR13 Datasheet

CLC001
Serial Digital Cable Driver with Adjustable Outputs

General Description

The CLC001 is a monolithic, high-speed cable driver
designed for use in SMPTE 259M serial digital video and
ITU-T G.703 serial digital data transmission applications.
The CLC001 drives 75Ω transmission lines (Belden 8281 or
equivalent) at data rates up to 622 Mbps. Controlled output
rise and fall times (400 ps typical) minimize transition­induced jitter. The output voltage swing is adjustable from
800 mV

p-p

to 1.0 V

p-p

using an external resistor.

The CLC001’soutput stage consumes less power than other
designs. The differential inputs accept LVDS signal levels,
LVPECL levels directly or PECL with attenuation networks.

All these make the CLC001 an excellent general purpose
high speed driver for high-speed, long distance data
transmission applications.

The CLC001 is powered from a single +3.3V supply and
comes in a small 8-pin SOIC package.

Key Specifications

n 400 ps rise and fall times
n Data rates to 622 Mbps
n 100 mV differential input threshold
n Low residual jitter

Features

n Adjustable output amplitude
n Differential input and output
n Accepts LVPECL or LVDS input swings
n Low power dissipation
n Single +3.3V supply

Applications

n Digital routers and distribution amplifiers
n Coaxial cable driver for digital transmission lines
n Twisted pair driver
n Serial digital video interfaces for the commercial and

broadcast industry

n SMPTE, Sonet/SDH, and ATM compatible driver
n Buffer applications

Connection Diagram (8-Pin SOIC)

Typical Application

DS101329-10

622 Mbps Eye Pattern with STM-4 Signal Mask

DS101329-2

Order Number CLC001AJE

See NS Package Number M08A

DS101329-1

March 2001

CLC001 Serial Digital Cable Driver with Adjustable Outputs

© 2001 National Semiconductor Corporation DS101329 www.national.com

Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.

Supply Voltage 4V
Output Current 27 mA
Maximum Junction Temperature +125˚C
Storage Temperature Range −65˚C to +150˚C
Lead Temperature

(Soldering 10 seconds) +300˚C

ESD Rating (HBM) ≥ 7kV
ESD Rating (MM) ≥ 500V
Package Thermal Resistance

θ

JA

Surface Mount AJE 125˚C/W

θ

JC

Surface Mount AJE 105˚C/W

Reliability Information

Transistor count 291

Recommended Operating
Conditions

Supply Voltage Range (VDD-VSS) +3.0V to +3.6V
Operating Free Air Temperature (T

A

) -40˚C to +85˚C

R

BB

Range (applied to VBBinput)

(Note 6) 1.3kΩ to 11.5kΩ

Electrical Characteristics

Over recommended operating supply and temperature ranges unless otherwise specified (Notes 2 and 3)

Symbol Parameter Conditions Min Typ Max Units

OUTPUT DC SPECIFICATIONS

V

SDO

Serial Driver Output Voltage RL=75Ω1%,

R

REF

= 1.91 kΩ 1% (for 800 mV

p-p

),

Figure 1

720 800 880 mV

R

L

=75Ω1%,

R

REF

= 1.5 kΩ 1% (for 1.0 V

p-p

),

Figure 1

900 1000 1100 mV

INPUT DC SPECIFICATIONS

V

TH

Differential Input High Threshold VCM= +0.05V or +1.2V or +3.25V, 0 +100 mV

V

TL

Differential Input Low Threshold VDD= 3.3V −100 0 mV

V

CMR

Common Mode Voltage Range VID= 100mV, VDD= 3.3V 0.05 3.25 V

I

IN

Input Current VIN= 0V or +3.0V, VDD= 3.6V or 0V

±

1

±

10 µA

I

INB

Input Current Balance VIN= 0V or +3.0V, VDD= 3.6V or 0V,

(Note 8)

0.23 µA

SUPPLY CURRENT

I

DD

Total Dynamic Power Supply Current
(includes load current)

RL=75Ω,
R

REF

= 1.91 kΩ 1%

(V

SDO

= 800 mV

p-p

@

270 Mbps)

70 115 mA

R

L

=75Ω,

R

REF

= 1.5 kΩ 1%

(V

SDO

= 1.0 V

p-p

@

622 Mbps)

85 130 mA

MISCELLANEOUS PARAMETERS

L

GEN

Output Inductance 6nH

R

GEN

Output Resistance 25 kΩ

I

BB

VBBCurrent R

REF

= 1.91 kΩ 1%, (Note 6) 250 µA

R

REF

= 1.5 kΩ 1%, (Note 6) 315 µA

CLC001

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AC Electrical Characteristics

Over recommended operating supply and temperature ranges unless otherwise specified (Note 3)

Symbol Parameter Conditions Min Typ Max Units

t

r,tf

Rise time, Fall time 20%–80%, (Notes 4, 5) 400 800 ps

t

os

Output overshoot 5%

t

jit

Output jitter (Note 7) 25 ps

t

pd

Propagation delay (Note 5) 1.9 ns

Note 1: “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices
should be operated at these limits. The table of “Electrical Characteristics” specifies conditions of device operation.

Note 2: Current flow into device pins is defined as positive. Current flow out of device pins is defined as negative. All voltages are stated referenced to V

SS

=0V.

Note 3: Typical values are at 25˚C and 3.3V.
Note 4: This parameter is Guaranteed by Design.
Note 5: R

L

=75Ω, AC-coupled at 270 Mbps, R

REF

= 1.91 kΩ 1% (for V

SDO

= 800 mV

p-p

±

10%), CLnot greater than 5pF (See

Figure 1

)

Note 6: The V

BB

output is intended as a bias supply pin for the inputs of this device only. It is not designed as a power supply output and should not be used to

power other devices.
Note 7: R

L

=75Ω, AC-coupled at 622 Mbps, R

REF

= 1.5 kΩ 1% (for V

SDO

= 1.0 V

p-p

±

10%), clock pattern input.

Note 8: Input Current Balance (I

INB

) is the difference between the Input Current (IIN)onV

IN+

and V

IN−

for the same bias condition.

Test Loads

DS101329-4

FIGURE 1. Test Loads

CLC001

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