ML4665

Absolute maximum ratings are limits beyond which the life of the integrated circuit may be impaired. All voltages unless otherwise specified are measured with respect to ground.
Power Supply Voltage Range
VCC ................................................................... GND 0.3 to 6V
Input Voltage Range
Digital Inputs
(SQEN, LBDIS) .................... GND 0.3 to VCC +0.3V
Tx+, Tx, VIN+, VIN ............... GND 0.3 to VCC +0.3V
Input Current
RRSET, RTSET, LMON.......................................... 60mA
Output Current
TxOUT .............................................................. 120mA
Junction Temperature .............................................. 150°C
Storage Temperature Range ...................... 65°C to 150°C
Lead Temperature (Soldering) .................................. 260°C
Thermal Resistance (qJA) ....................................... 78°C/W

The ML4665 is a low power, low cost, single chip 10BASE-FL transceiver. The ML4665 contains a fiber optic data quantizer and an LED output driver for direct connection to an optical module(s). The ML4665 offers a standard IEEE 802.3 AU interface that allows it to be directly connected to industry standard manchester encoder/decoder chips or an AUI connector.

The ML4665 provides a highly integrated solution that requires a minimal number of external components. The transmitter offers a 100mA maximum current drive output that directly drives a fiber optic LED transmitter. The receiver ML4665 offers a highly stable fiber optic data quantizer capable of accepting input signals as low as 2mVP-P with a 55dB dynamic range.

The ML4665 is a lower cost version of the industry standard ML4663. To achieve lower cost, the ML4665 eliminates some functionality (as described below) and is packaged in a 20-lead PLCC package.