VITESSE
SEMICONDUCTOR CORPORATION
Advance Product Information
3.125Gb/s Integrated Transimpedance
and Limiting Amplifier with Signal Detect
VSC7969
Package Pin Descriptions
Figure 2: Pin Diagram
VCC
GND
GND
IN
1
2
3
4
5
6
7
8
SD_ADJ
SD_OUT
GND
16
15
14
13
12
11
10
9
VOUTN
VOUTP
GND
VSC7969
FILTER
GND
GND
GND
GND
IMON
Table 4: Pin Identifications
Pin Name Pin No.
Description
VCC
1
2
Power Supply
Ground
GND
GND
3
Ground
IN
4
Photodetector Anode Connection
Photodetector Cathode Connection (filtered VCC)
FILTER
GND
5
6
Ground
GND
7
Ground
GND
8
Ground
IMON
GND
9
Photocurrent Monitor
Ground
10
11
12
13
14
15
16
GND
Ground
VOUTP
VOUTN
GND
Positive Logic Output (logic HIGH when photocurrent is HIGH)
Complementary Logic Output (logic LOW when photocurrent is HIGH)
Ground
SD_OUT
SD_ADJ
Signal Detect Output (logic HIGH when photocurrent exceeds SDA)
Signal Detect Threshold Adjustment (see Applications and Usage section)
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com
Internet: www.vitesse.com
Page 6
G52355-0, Rev 2.0
02/09/01
VITESSE [ VITESSE SEMICONDUCTOR CORPORATION ]
