VITESSE
SEMICONDUCTOR CORPORATION
Preliminary Data Sheet
VSC7928
SONET/SDH 3.2Gb/s Laser Diode Driver
Figure 8: Pad Assignments for VSC7928 Die
1720µm
1620µm
50µm
50µm
50µm
120
120µm
150µm
PAD 34 PAD 33 PAD 32 PAD 31 PAD 30 PAD 29 PAD 28 PAD 27 PAD 26
DCC
VSS
VSS
VSS
VSS
VIP
MIP
MIP
MIB
PAD 1
N/C
PAD 2
NDIN
PAD 3
DIN
PAD 4
DINT
PAD 5
CLOCKT
PAD 6
CLOCK
PAD 7
NCLOCK
PAD 8
N/C
SEL
PAD 9
GND
PAD 10
PAD 25
VIB
PAD 24
GND
PAD 23
IOUT
PAD 22
IOUT
30µm
1620µm
PAD 21
NIOUT
PAD 20
NIOUT
PAD 19
GND
PAD 18
IBIAS
GND
GND
GND
GND
GND NMARK MARK
PAD 11 PAD 12 PAD 13 PAD 14 PAD 15 PAD 16 PAD 17
1720µm
50µm
Die Size:
Actual Die Size:
Pad Size:
Pad Pitch:
Space
Between Pads:
1620µm x 1620µm
1720µmx1720µm (after the die are cut up)
120µm x 120µm
150µm
30µm
G52246-0, Rev 3.0
04/05/01
©
VITESSE
SEMICONDUCTOR CORPORATION
• 741 Calle Plano • Camarillo, CA 93012
Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com
Internet: www.vitesse.com
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