NB4N840M:3.3 V; 3.2 Gb/s Dual 2 x 2 Crosspoint Switch with CML Outputs
The NB4N840M is a high−bandwidth fully differential dual 2 x 2 crosspoint switch with CML inputs/outputs that is suitable for applications such as SDH/SONET DWDM and high speed switching. Fully differential design techniques are used to minimize jitter accumulation, crosstalk, and signal skew, which make this device ideal for loop−through and protection channel switching applications. Internally terminated differential CML inputs accept AC−coupled LVPECL (Positive ECL) or direct coupled CML signals. By providing internal 50 Ohm input and output termination resistor, the need for external components is eliminated and interface reflections are minimized. Differential 16 mA CML outputs provide matching internal 50 Ohm terminations, and 400 mV output swings when externally terminated, 50 Ohm to VCC. Single−ended LVCMOS/LVTTL SEL inputs control the routing of the signals through the crosspoint switch which makes this device configurable as 1:2 fan−out, repeater or 2 x 2 crosspoint switch. The device is housed in a low profile 5 x 5 mm 32−pin QFN package.
技术特性
- Plugin compatible to the MAX3840 and SY55859L
- Maximum Input Clock Frequency 2.7 GHz
- Maximum Input Data Frequency 3.2 Gb/s
- 225 ps Typical Propagation Delay
- 80 ps Typical Rise and Fall Times
- 7 ps Channel to Channel Skew
- 430 mW Power Consumption
- < 0.5 ps RMS Jitter
- 7 ps PeaktoPeak Data Dependent Jitter
- Power Saving Feature with Disabled Outputs
- Operating Range: VCC = 3.0 V to 3.6 V with VEE = 0 V
- CML Output Level (400 mV PeaktoPeak Output), Differential Output
- These are Pb-Free Devices
|
封装图 MARKING DIAGRAM
|
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 |
| NB4N840MMNG |
Active |
|
3.3 V; 3.2 Gb/s Dual 2 x 2 Crosspoint Switch with CML Outputs |
QFN-32 |
488AM |
1 |
Tube |
74 |
|
| NB4N840MMNR4G |
Active |
|
3.3 V; 3.2 Gb/s Dual 2 x 2 Crosspoint Switch with CML Outputs |
QFN-32 |
488AM |
1 |
Tape and Reel |
1000 |
|
| NB4N840MMNTWG |
Active |
|
3.3 V; 3.2 Gb/s Dual 2 x 2 Crosspoint Switch with CML Outputs |
QFN-32 |
488AM |
1 |
Tape and Reel |
1000 |
$7.25 |
数据资料DataSheet下载
