GN2017
The GN2017 is an integrated highly-flexible bi-directional CDR, laser driver and limiting amplifier for 16G Fibre Channel, and FCoE SFP+ VCSEL based applications.
The GN2017 extends the reach and robustness of high-speed serial links by compensating for losses in the transmission medium and by resetting the jitter budget.
The transmit path consists of optional equalization, a multi-rate CDR and a VCSEL laser driver.
接收路径由限幅放大器、多速率 CDR 和可编程输出预加重组成。
Both transmit and receive directions offer highly configurable eye shaping features, which allow for optimal electrical and optical outputs. Both directions also offer the option for polarity invert, loopback, output mute, and programmable output rise/fall times.
The GN2017 has an integrated analog to digital converter, which through the serial interface, provides digital diagnostic information on supply voltage, die temperature, laser bias current, and transmit optical power.
The GN2017 is configurable for multi-rate operation. Two configuration profiles optimized for different data rates can be programmed into the GN2017.
The GN2017 also offers integrated laser safety features.
The GN2017 device is packaged in a small outline 5mm × 5mm, 32-pin, high-frequency QFN package with exposed pad.
The GN2017 is Pb-free and the encapsulation compound does not contain halogenated flame retardant.
功能
- 双 CDR，9.95 至 11.3 Gb/s 和 14.025 Gb/s 无参考工作
- Integrated limiting amplifier with sensitivity less than 10mV
- Integrated VCSEL driver
- 自动速率检测
- On-chip Automatic Power Control (APC) loop
- Digital control and monitoring
- 集成眼图监视器
- PRBS7 发生器/检验器
- Bi-directional loopback
- Polarity invert, output mute available in both transmit and receive direction
- Optional transmit path input trace equalization
- Programmable analog pre-emphasis for SFI output
- Programmable VCSEL-driver Output Crossing-Point Adjust
- VCSEL driver analog pre-emphasis: programmable boost amplitude and width
- Programmable Tx Fault signalling (open-drain)
- Integrated analog to digital converter, which provides access to digital diagnostic information on supply voltage, die temperature, laser bias current, and transmit optical power
- I2C Serial Interface • Integrated laser safety features
- Single 3.3V supply (+5%/-7%)
- 5x5 32-pin QFN package
- -40°C to 95°C case operation
- Single-ended or differential, AC-coupled bias sink/source VCSEL drive operation
- Adjustable bias current from 1mA to 12mA
- Adjustable modulation current from 2mA peak-to-peak to 15mA peak-to-peak, single-ended
- Output: 2 x 50?single-ended terminations
- Crossing point adjustment (20% to 80% of eye height)
- Programmable analog pre-emphasis:
- peaking tail current range of 0 to 6mA in 32 steps
- peaking temporal range 0 to 100ps in 32 steps
- Programmable rise/fall time; 20ps to 40ps
- Optional on-chip APC loop
- Programmable Tx Fault signalling
- 4.25/8.5/14.025Gb/s Fibre Channel SFP+ VCSEL based transceivers
- 10GbE & Fibre Channel over Ethernet (FCoE) SFP+ VCSEL based transceivers
应用
封装
- 32-QFN
订购代码
- GN2017-INE3
Pb(Lead)-Free/RoHS-Green Info
（-40°C 至 +85°C / 4000 循环）
（50°C，4000 小时）
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资源
To see more videos Videos
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在 2018 年进行了大量演示和 alpha 模块测试之后，双密度版本的四通道小型可插拔 (QFSP) 多源协议 (MSA) 模块标准有望成为新线卡的规则。QSFP-DD 热潮的隐含意义不是模块本身的物理特性，而是转向先进信令方法的趋势。十年前，QSFP28 的问世预示着使用 NRZ 信令的 25Gbps 电通道即将占据主导地位。如今，QSFP-DD 及其更庞大的表亲 —— 八进制 SFP 或 OSFP ，都使用 PAM4 信令。其用得最多的是 50Gbps 通道。但 QSFP-DD 足够灵活，可以在各种实施中使用八通道接口：25G x 8 用于 200Gbit 以太网，50G x 8 用于 400Gbit 以太网，可能还有一些早期的 100G x 8 用于预标准 800Gbit 以太网。
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