Overview
Description
The HXR14450 is a quad-channel, low-power, linear transimpedance amplifier (TIA) with an integrated clock and data recovery (CDR) unit. It is a member of the family of optical receiver transmitter array (ORTA) products for high-speed optical interconnects. It is based on PAM4 modulation for next-generation Datacom applications.
The HXR14450 integrates a linear transimpedance pre-amplifier, linear post-amplifier, CDR unit, and a versatile output stage in one chip for higher density and lower power consumption applications.
Features
- Quad Integrated 56Gb/s PAM4 Linear TIA with CDR
- Low power – typical 400mW per channel
- Typical 700mVppd output (adjustable)
- Up to 3mApp overload
- Integrated clock and data recovery unit
- Independent, per channel receiver signal strength indicator (RSSI)
- 5kΩ typical differential gain
- Linear operation with internal automatic gain control (AGC)
- Adaptive linear equalizer and decision feedback equalizer (DFE) at the receiver
- Programmable 3-tap de-emphasis at the transmitter
- Support reference-less and reference clock modes
- On-chip testability: eye-opening monitor (EOM), jitter tolerance (JTOL), PRBS generator, error checker
- Support both isolated and common cathode photo-detector (PD) arrays
- I2C interface control
Comparison
Applications
Documentation
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| Type | Title | Date |
| Datasheet - Short-form | PDF 141 KB | |
| End Of Life Notice | PDF 1.11 MB | |
| End Of Life Notice | PDF 160 KB | |
| Product Change Notice | PDF 134 KB | |
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Design & Development
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
| WAFER | U | WFP | ||
| BOARD | C | Box | ||
| WAFER | U | WFP |
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Videos & Training
Watch an overview of the industry’s first CMOS-based PAM4 CDR solutions, HXT14450 50G/lane PAM4 integrated CDR with VCSEL driver and HXR14450 TIA designed for 200 Gb/s and 400 Gb/s transceivers and AOCs (active optical cables) in datacenters. The series features significantly lower power and smaller size compared with traditional DSP solutions, as well as higher integration – including an integrated MCU – to further simplify system design.