NB4L858M:2x2 Crosspoint Switch, 2.5 V / 3.3 V, 3 GHz Dual Differential Clock/Data, with CML Output and Internal Termination
The NB4L858M is a high−bandwidth low voltage fully differential dual 2 x 2 crosspoint switch with CML outputs that is suitable for applications such as SDH/SONET DWDM and high speed switching applications. Design technique minimizes jitter accumulation,crosstalk, and signal skew which make this device ideal for loop−through and protection channel switching application. Each 2 x 2 crosspoint switch can fan out and/or multiplex up to 3Gb/s data and 3 GHz clock signals.
Differential inputs incorporate a pair of internal 50 Ω termination resistors in a center−tapped configuration (VTDx Pins) and can accept LVPECL (Positive ECL) or CML input signal without any external component. This feature provides transmission line termination on−chip, at the receiver end, eliminating external components. Differential 16 mA CML output provides matching internal 50 Ω terminations, and 400 mV output swings when externally terminated, 50 Ω to VCC.
The SELECT inputs are single−ended and can be driven with either LVCMOS or LVTTL input levels. The device is housed in a low profile 7 x 7 mm 32−pin LQFP package.
技术特性
- Maximum Input Clock Frequency 3 GHz
- Maximum Input Data Frequency 3 Gb/s
- 350 ps Typical Propagation Delay
- 80 ps Typical Rise and Fall Times
- 12 ps Channel to Channel Skew
- 0.5 ps RMS Jitter
- 5 ps Deterministic Jitter @ 2.5 Gb/s
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封装图 MARKING DIAGRAM
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订购信息 Ordering Information
| 产品 |
状况 |
Compliance |
具体说明 |
封装 |
MSL* |
容器 |
预算价格 (1千个数量的单价） |
| 类型 |
外形 |
类型 |
数量 |
| NB4L858MFAG |
Active |
|
2x2 Crosspoint Switch, 2.5 V / 3.3 V, 3 GHz Dual Differential Clock/Data, with CML Output and Internal Termination |
LQFP-32 |
873A-02 |
2 |
Tray JEDEC |
250 |
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| NB4L858MFAR2G |
Active |
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2x2 Crosspoint Switch, 2.5 V / 3.3 V, 3 GHz Dual Differential Clock/Data, with CML Output and Internal Termination |
LQFP-32 |
873A-02 |
2 |
Tape and Reel |
2000 |
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