VITESSE
SEMICONDUCTOR CORPORATION
Advance Product Information
3.125Gb/s PECL Limiting Amplifier with LOS Detect
Table 6: Pad Coordinates
Pad
Name
CZ1
VSC7961
Pad/Pin
Pin Name
Number
CZ1
1
Coordinates (µm)
Description
X
270.525
Y
1359.05
Offset Correction Loop Capacitor. Place capacitor between
this pin and CZ2 to alter time constant of offset correction
loop. See
Detailed Description
section.
Offset Correction Loop Capacitor. Place capacitor between
this pin and CZ1 to alter time constant of offset correction
loop. See
Detailed Description
section.
Supply Ground
Noninverted Input Signal
Inverted Input Signal
Supply Ground
This pin may be either connected to ground of left
unconnected. This pin does not effet the performance of the
device.
Loss of Signal (LOS) Threshold. Connect a resistor from
this pin to ground to set the input signal level at which LOS
outputs will be asserted. See
Application Information
section.
Inverted Loss of Signal Output. LOS is HIGH for input
signals above the threshold programmed by TH. See
Detailed Description
section.
Noninverted Loss of Signal Output. LOS is LOW for input
signals above the threshold programmed by TH. See
Detailed Description
section.
Power Supply
Inverted Data Output
Noninverted Data Output
Power Supply
Squelch Input. Squelch is disabled if this pin is
unconnected or set LOW. When SQUELCH is HIGH,
OUT+ and OUT- are forced to static levels. See
Detailed
Description
section.
No Connection
CZ2
GNDA
LAINP
LAINM
GNDA
NC
CZ2
GND
IN+
IN-
GND
NC
2
3
4
5
6
7
80.95
80.95
80.95
80.95
80.95
80.95
1170.525
990.525
810.525
630.525
450.525
270.525
TH
TH
8
270.525
80.95
LOS
LOS
9
1169.475
80.95
LOS
VCCA
LOAM
LAOP
VCCA
SQ
NC
LOS
VCC
OUT-
OUT+
VCC
SQUELCH
—
10
11
12
13
14
15
—/16
1359.05
1359.05
1359.05
1359.05
1359.05
1359.05
1169.475
270.525
450.525
630.525
810.525
990.525
1170.525
1359.05
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
G52360-0, Rev 2.0
02/09/01
VITESSE [ VITESSE SEMICONDUCTOR CORPORATION ]
