MAX3762
Low-Power, 622Mbps Limiting Amplifiers with Chatter-Free Power Detect for LANs
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Generates Only 15ps PWD and Has 4mV Input Sensitivity
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Features
- Chatter-Free Power Detector with Programmable Loss-of-Signal Outputs
- 4mV Input Sensitivity
- PECL Data Outputs
- Single 5V Power Supply
- 250ps Output Edge Speed
- Low 15ps Pulse-Width Distortion
- TTL Loss-of-Signal Interface Logic—MAX3761
- PECL Loss-of-Signal Interface Logic—MAX3762
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The MAX3761/MAX3762 limiting amplifiers, with 4mV sensitivity and PECL data outputs, are optimized for operation in low-cost, 622Mbps, LAN/ATM LAN fiber optics applications.
An integrated power detector senses the input signal's amplitude. A received-signal-strength indicator (RSSI) gives an analog indication of the power level, while the complementary loss-of-signal (LOS) outputs indicate if the input power level exceeds the programmed threshold level. The LOS threshold can be adjusted to detect signal amplitudes between 3mVP-P and 100mVP-P, providing a 15dB LOS adjustment in fiber optic receivers. The LOS outputs have 3.5dB of hysteresis, which prevents chatter when input signal levels are small. The MAX3761's LOS outputs are compatible with TTL-logic levels. The MAX3762 has PECL LOS outputs.
DISABLE and LOS can be used to implement a squelch function, which turns off the data outputs when the input signal is below the programmed threshold.
Applications
- 155Mbps LAN/ATM LAN Receivers
- 622Mbps LAN/ATM LAN Receivers
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MAX3762
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Software & Part Ecosystem
Evaluation Kits 2
MAX3762EVKIT
Evaluation Kit for the MAX3762
Product Detail
The MAX3762 evaluation kit (EV kit) simplifies evaluation of the MAX3762 limiting amplifier. It allows easy programming of the loss-of-signal (LOS) threshold. The board layout provides for multiple termination configurations. The circuit includes space for the MAX3760 preamplifier and user-supplied photodiode. Adding these two components to the MAX3762 forms a complete fiber optic receiver.
MAX3761EVKIT
Evaluation Kit for the MAX3761
Product Detail
The MAX3761 evaluation kit (EV kit) simplifies evaluation of the MAX3761 limiting amplifier. It allows easy programming of the loss-of-signal (LOS) threshold. The board layout provides for multiple termination configurations. The circuit includes space for the MAX3760 preamplifier and user-supplied photodiode. Adding these two components to the MAX3761 forms a complete fiber optic receiver.
Tools & Simulations 1
IBIS Model 2
IBIS Model
