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