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PDF VSC7961 Data sheet ( Hoja de datos )
| Número de pieza | VSC7961 | |
| Descripción | 3.125Gb/s PECL Limiting Amplifier | |
| Fabricantes | Vitesse Semiconductor | |
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VITESSE
SEMICONDUCTOR CORPORATION
Advance Product Information
VSC7961
3.125Gb/s PECL Limiting Amplifier with LOS Detect
Features
• 3.3V or 5V Power Supply
• Typical Supply Current of 32mA
• Positive Emitter-Coupled Logic (PECL) Outputs
• Optional Output Squelch
• Loss of Signal Detect
• Output Offset Correction
• Rise/Fall Times Faster than 100ps
• Packages: TSSOP-16, Bare Die
Applications
• SONET/SDH at 622Mb/s, 1.244Gb/s, 2.488Gb/s,
and 3.125Gb/s
• Full-Speed Fibre Channel (1.062Gb/s)
• Small Form Factor (SFF) Receivers
• ATM Optical Receivers
General Description
The VSC7961 is a single-supply limiting amplifier with Loss of Signal (LOS) detect for SONET/SDH and
Fibre Channel applications up to 3.125Gb/s. The VSC7961 provides a constant output signal swing for a wide
range of input voltages and has Positive Emitter-Coupled Logic (PECL). The VSC7959 provides the same func-
tionality as the VSC7961 with Current-Mode Logic (CML) outputs. Key features of the VSC7961 are its RMS
power detectors for programmable LOS detection, optional output squelch, adjustable output levels, excellent
jitter performance, and fast edge rates. The VSC7961 is available in die form or in a TSSOP-16 package.
Block Diagram
VSC7961
TH
IN+
100Ω
IN-
RMS Power
Detect and
Control
VCC
8kΩ
VCC
8kΩ
Output Control
LOS
LOS
SQUELCH
LEVEL
OUT+
OUT-
Lowpass Filter
Offset Correction
10pF
CZ1 CZ2
G52360-0, Rev 2.0
02/09/01
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: [email protected]
Internet: www.vitesse.com
Page 1
1 page  
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VITESSE
SEMICONDUCTOR CORPORATION
Advance Product Information
VSC7961
3.125Gb/s PECL Limiting Amplifier with LOS Detect
Bare Die Descriptions
Figure 2: Pad Assignments
Pad1
CAZ1
Pad 2
CAZ2
Pad 3
GNDA
1597µm
(0.06287")
Pad 4
LAINP
Pad 5
LAINM
Pad 6
GNDA
Pad 7
NC
Pad 8
TH
1597µm (0.06287")
VSC7961
Pad 16
NC
Pad 15
SQ
Pad 14
VCCA
Pad 13
LAOP
Pad 12
LAOM
Pad 11
VCCA
Pad 10
LOS
Pad 9
LOS
Die Size:
Pad Pitch:
Pad Passivation Opening:
1597µm x 1597µm (0.06287" x 0.06287")
180µm (0.00709")
95µm x 95µm (0.00374" x 0.00374")
The back side of the die may either be left floating or connected ot ground.
G52360-0, Rev 2.0
02/09/01
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
Internet: www.vitesse.com
Page 5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet VSC7961.PDF ] | |
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