PHY2078
LAST TIME BUY125Mbps to 2.5Gbps FTTx Burst-Mode Laser Driver/Postamplifier
Programmable GPON Transceiver
- Part Models
- 1
- 1ku List Price
- price unavailable
Part Details
- Burst-Mode Common Anode Laser Driver with Up to 80mA Modulation and 90mA Bias Current
- 7ns Output Switching in Burst Mode
- Power-Saving Mode with Zero Bias and Modulation Current Between Bursts
- Closed or Open-Loop Bias Mode with Temperature Lookup Table
- Temperature-Compensated Modulation Current
- Limiting Amplifier with Programmable Lowpass Filter and Output Swing
- Device Settings Stored in External 2k EEPROM
The PHY2078 is a combined burst-mode laser driver and limiting amplifier for use within fiber optic modules for FTTx applications. Used with the PHY1095 or PHY1097 transimpedance amplifiers and a low cost serial EEPROM, the device forms a complete PON diplexer silicon solution.
The transmit block includes a high-frequency modulator and a bias current generator. The bias current can be controlled either by a fast-settling APC loop or in open-loop mode, which uses a temperature lookup table. The receiver includes a limiting amplifier with programmable bandwidth. A signal-detect/loss-of-signal (LOS) function is implemented using the input signal modulation amplitude with user-selectable threshold and hysteresis.
Operating with a 3.3V supply and rated from -40°C to +95°C ambient operating temperature range, the PHY2078 is housed in a 32-pin, 5mm x 5mm, RoHS-compliant, QFN package.
Applications
- BPON
- GEPON
- GPON
Documentation
Data Sheet 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| PHY2078QT-RR | 32-LFCSP-5X5X0.75 |
This is the most up-to-date revision of the Data Sheet.
Tools & Simulations
IBIS Model 1
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