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參數(shù)資料
| 型號(hào)： | VSC8166 |
| 廠商： | VITESSE SEMICONDUCTOR CORP |
| 元件分類： | 數(shù)字傳輸電路 |
| 英文描述： | 2.488 Gbit/sec 1:16 SONET/SDH Demux with Clock Recovery |
| 中文描述： | MUX/DEMUX, PQFP128 |
| 封裝： | 14 X 20 MM, 2 MM HEIGHT, HEAT SINK, PLASTIC, QFP-128 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 178K |
| 代理商： | VSC8166 |
VITESSE
SEMICONDUCTOR CORPORATION
741 Calle Plano, Camarillo, CA 93012 805/388-3700 FAX: 805/987-5896
Page 1
11/9/99
VITESSE
Preliminary Datasheet
VSC8166
2.488 Gbit/sec
1:16 SONET/SDH Demux with Clock Recovery
G52252-0, Rev. 3.0
Features
2.488Gb/s 1:16 Demultiplexer
General Description
The VSC8166 demultiplexes a 2.488Gbp/s LVPECL serial input datastream (DI+) to 16-bit wide, LVPECL
155Mb/s parallel data outputs (D0:D15+) for SONET/SDH applications. It has an integrated clock and data
recovery unit with an on-chip PLL that internally generates a 2.488GHz clock in phase with the incoming data.
Internal divider circuits are used to take the high-speed clock and generate 155.52MHz (CLK16O+) and
77.76MHz (CLK32O+) LVPECL external output clocks. The incoming data is retimed and demultiplexed to a
16-bit word which is clocked out of the demultiplexer by the 155.52MHz output clock.
Alarm functions support typical telecom system applications. A TTL Loss Of Lock (LOL) indicator can be
externally enabled (LOLEN) to detect when the device goes out of lock, which would most often occur in the
event of a loss of valid data. A TTL No-Reference (NOREF) output indicator flags when the LVPECL Clock
Reference (REFCLK) input to the VSC8166 either is removed, or goes severely out of tolerance. For Loss Of
Signal (LOS) conditions from an Optics Module, the VSC8166 provides a polarity (POL) input to accommo-
date any polarity differences.
Only a single 3.3V power supply is required for device operation and the device is packaged in a thermally
enhanced 128 Pin 14x20x2 mm PQFP Package.
VSC8166 Block DIagram
Fully Integrated Clock and Data Recovery
Single 3.3V Supply Operation
Differential LVPECL Low Speed Interface
Maintains Clock Output in the Absence of
Data
Loss of Lock, Loss of Signal Indicators
128 Pin 14x20x2 mm Enhanced PQFP Pkg.
2.3W Max Power Dissipation
O
1
Clock
Recovery
Data
Re-time
Divide
by 16
Divide
by 2
D0+
D0-
D15+
D15-
CLK16O+
CLK16O-
CLK32O+
CLK32O-
DI+
DI-
REFCLK+
REFCLK-
NOREF
LOS
LOLEN
LOL
POL
1
0
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| VSC8169 | 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:OC-48 (FEC) 16:1 SONET/SDH MUX with Clock Generator |
| VSC8169QR | 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:OC-48 (FEC) 16:1 SONET/SDH MUX with Clock Generator |
| VSC8171 | 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:SONET/SDH 16:1 Mux with CMU |
| VSC8172 | 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:SONET/SDH 16:1 Mux with CMU |
| VSC8184 | 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:11.5-12.5Gb/s 1:16 Demultiplexer with Clock Recovery |
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