AD8128: CAT-5 Receiver with Adjustable Line Equalization
The AD8128 is a high speed, differential receiver/equalizer that compensates for the transmission losses of unshielded twisted pair (UTP) CAT-5 cables. Various frequency dependent gain stages are summed together to best approximate the inverse frequency response of CAT-5/CAT-5e cable. An equalized bandwidth of 120 MHz can be achieved for 100 meters of cable.
Low integrated output noise and offset voltage adjust make the AD8128 an excellent choice for dc-coupled wideband RGB-over-CAT-5 applications. For systems where the UTP cable is longer than 100 meters, two AD8128s can be cascaded to compensate for losses up to 200 meters of CAT-5/CAT-5e.
The AD8128 can be used as a stand-alone receiver/equalizer or in conjunction with the AD8143, triple differential receiver, to provide a complete low cost solution for receiving RGB over UTP cable in such applications as KVM.
The AD8128 is available in a 3 mm x 3 mm 8-lead LFCSP and is rated to operate over the extended temperature range of -40°C to + 85°C.
AD8128 特点
- Tuned to compensate for Category-5 (CAT-5) cable losses Up to 100 meters @ 120 MHz
- 2 voltage controlled frequency response adjustment pins High frequency peaking adjustment Broadband gain adjustment
- Slew rate: 2700 V/us
- Low output noise 1.5 mV rms integrated noise @ 100 meters equalized bandwidth
- DC output offset adjust
- Equalized pass-band ripple ±1 dB to 70 MHz
- Supply current: 24 mA on ±5 V
- Small 8-lead 3 mm x 3 mm LFCSP
AD8128 功能框图
AD8128 技术指标
| 0.1 dB Flatness (MHz) | 70 | Slew Rate (V/us) | 2700V/us |
| -3 dB BW (MHz) | 120MHz | Supply Current | 24mA |
| Package | 8-Lead LFCSP | Pos Supply | +4.5V to +5.5V |
AD8128 订购指南
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| AD8128ACPZ-R2 | 量产 | 8 ld LFCSP (3x3mm) | 8 | 工业 |
| AD8128ACPZ-R7 | 量产 | 8 ld LFCSP (3x3mm) | 8 | 工业 |
| AD8128ACPZ-RL | 量产 | 8 ld LFCSP (3x3mm) | 8 | 工业 |