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Part Number: MAX3969
Description: The MAX3969 limiting amplifier with PECL data outputs is ideal for low-cost ATM, Fast Ethernet, FDDI a...
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MAX3969
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DataSheet
General Description
MAX3969 General Description
The MAX3969 limiting amplifier with PECL data outputs is ideal for low-cost ATM, Fast Ethernet, FDDI and ESCON fiber optic receivers.
The MAX3969 features 1mVP-P input sensitivity and an integrated power detector that senses the input signal power. It provides a received-signal-strength indicator (RSSI), which is an analog indication of the power level. Signal strength is also indicated by the complementary TTL loss-of-signal (LOS) outputs and the PECL signaldetect (SD) output, both of which indicate the power level relative to a programmable threshold.
The threshold can be adjusted to detect signal amplitudes as low as 2.7mVP-P. An optional squelch function disables switching of the data outputs by holding them at a known state when the signal is below the programmed threshold.
The MAX3969 is available in die form and a 4mm x 4mm, 20-pin thin QFN package.
MAX3969 Maximum Ratings
Power-Supply Voltage Range (VCC, VCCO) ..........-0.5V to +7.0V
Voltage at FILTER, RSSI, IN+, IN-, CZP, CZN, SQUELCH,
INV, VTH.....................................................-0.5V to (VCC + 0.5V)
TTL Output Current (LOS, LOS) .........................................±9mA
PECL Output Current (OUT+, OUT-, SD) ..........................±50mA
Differential Voltage Between CZP and CZN...........-1.5V to +1.5V
Differential Voltage Between IN+ and IN- ............-1.5V to +1.5V
Continuous Power Dissipation (TA = +85°C)
20-Pin Thin QFN (derate 16.9mW/°C above +85°C) ....1099mW
Operating Junction Temperature Range (die)..-40°C to +150°C
Die Attach Temperature...................................................+400°C
Storage Temperature Range ...........................-50°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Voltage at FILTER, RSSI, IN+, IN-, CZP, CZN, SQUELCH,
INV, VTH.....................................................-0.5V to (VCC + 0.5V)
TTL Output Current (LOS, LOS) .........................................±9mA
PECL Output Current (OUT+, OUT-, SD) ..........................±50mA
Differential Voltage Between CZP and CZN...........-1.5V to +1.5V
Differential Voltage Between IN+ and IN- ............-1.5V to +1.5V
Continuous Power Dissipation (TA = +85°C)
20-Pin Thin QFN (derate 16.9mW/°C above +85°C) ....1099mW
Operating Junction Temperature Range (die)..-40°C to +150°C
Die Attach Temperature...................................................+400°C
Storage Temperature Range ...........................-50°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
MAX3969 Features
1mVP-P Input Sensitivity
Loss-of-Signal Detector with Programmable Threshold
TTL LOS and PECL Signal Detect
Analog Received-Signal-Strength Indicator
Output Squelch Function
Compatible with 4B/5B Data Coding
Loss-of-Signal Detector with Programmable Threshold
TTL LOS and PECL Signal Detect
Analog Received-Signal-Strength Indicator
Output Squelch Function
Compatible with 4B/5B Data Coding
MAX3969 Typical Application
SFP/SFF Transceivers
Fast Ethernet/FDDI Transceivers
155Mbps LAN ATM Transceivers
ESCON Receivers
FTTx Transceivers
Fast Ethernet/FDDI Transceivers
155Mbps LAN ATM Transceivers
ESCON Receivers
FTTx Transceivers
MAX3969 Connection Diagram
MAX3969
PDF/DataSheet Download
- Datasheet: MAX3969
- File Size: 741439 KB
- Manufacturer: MAXIM [Maxim Integrated Products]
- Click here to Download
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