VSC7969 datasheet(3/14 Pages) VITESSE

3 / 14 page

VITESSE

SEMICONDUCTOR CORPORATION

Advance Product Information

VSC7969

3.125Gb/s Integrated Transimpedance

and Limiting Amplifier with Signal Detect

G52355-0, Rev 2.0

Page 3

02/09/01

Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com

Internet: www.vitesse.com

NOTES: (1) The transimpedance gain is defined as ZT = (∆VOUT - DIFF)/∆IPH. (2) Using 1111100000 pattern at 2.5Gb/s to measure the

standard deviation of the edge of the pattern, multiply the standard deviation by 14 to achieve the total random jitter. (3) +K28.5

- K28.5 (00111110101100000101).

Table 2: DC Specifications

Absolute Maximum Ratings(1) (at T

A = +25°C, unless otherwise specified)

Power Supply Voltage (VCCS)......................................................................................................................... 3.6V

Power Supply Voltage (VCCD) ........................................................................................................................ 5.5V

Junction Temperature Range ........................................................................................................ -40°C to +125°C

Storage Temperature Range ......................................................................................................... -40°C to +125°C

Relative Ambient Humidity ................................................................................................................. 85%/+85°C

NOTE: (1) CAUTION: Stresses listed under “Absolute Maximum Ratings” may be applied to devices one at a time without caus-

ing permanent damage. Functionality at or above the values listed is not implied. Exposure to these values for extended

periods may affect device reliability.

Recommended Operating Conditions

Positive Voltage Supply (VCCS) ...................................................................................................................... 3.3V

Positive Voltage Supply (VCCD)...................................................................................................................... 5.0V

Negative Voltage Rail (GND) ............................................................................................................................ 0V

Ambient Temperature Range (TA)

(1) .............................................................................................. -40°C to +85°C

MON

Slope of Linear Analog Photocurrent

Monitor vs Input Optical Power

0.8

µA/µW

Ω to 2kΩ to V

CC with a detector

responsitivity of 0.8A/W

Duty Cycle

-5

IMONRANGE Photocurrent Monitor Linearity Range

200

µA

IMONOFFSET Photocurrent Monitor Offset

µA

Random Jitter(2)

TBD

Peak-to-peak

Deterministic Jitter(3)

TBD

Peak-to-peak

Symbol

Parameter

Min

Typ

Max

Units

Conditions

GND

Negative Supply Rail

VCCS

Positive Supply Rail for 3.3V Operation

3.0

3.3

3.6

VCCD

Positive Supply Rail for 5V Operation

4.5

5.0

5.5

ICC

Power Supply Current

3.3V

VOUT-CM

Common-Mode Voltage on Output Pins

VCCS -

125mV

Applicable to VOUTP and

VOUTN pins at 50

Ω load.

VANODE

Internal DC Bias Voltage on Detector

Anode Contact

0.8

0.9

1.0

VCATHODE

Interal DC Bias Voltage on Detector

Cathode Contact

VCCS -

0.15V

VCCS

VCAT-EXT

External DC Bias Voltage Permissable

on Detector Cathode Contact

3.3

VAPD

External DC Bias Voltage for Use with

Avalanche Photodetector

Symbol

Parameter

Min

Typ

Max

Units

Conditions

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