DS1863 데이터 시트보기 (PDF) - Maxim Integrated

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DS1863

Burst-Mode PON Controller With Integrated Monitoring

Maxim Integrated 

Burst-Mode PON Controller

With Integrated Monitoring

Pin Description

PIN

NAME

DESCRIPTION

1

BEN Burst Enable Input. Triggers the sampling of the APC and Quick-trip monitors.

2

TX-D Transmit Disable Input. Disables BIAS and MOD outputs.

3

N.C. No Connection

4

TX-F Transmit Fault Output. Open-drain.

5

FETG Output to FET Gate. Signals an external N or P Channel MOSFET to enable/disable the laser’s current.

6

SDA I2C Serial Data I/O

7

SCL I2C Serial Clock Input

8

GND Ground

9

MON1 External Analog Inputs. The voltage at these pins is digitized by the internal analog-to-digital converter

10

MON2 and can be read through the I2C interface. Alarm and warning values can be assigned to interrupt the

11

MON3 processor based on the ADC result.

12

GND Ground

13

BIAS Bias Current Output. This current DAC generates the bias current reference for the MAX3643.

14

MOD

Modulation Output Voltage. This 8-bit voltage output has 8 full-scale ranges from 1.25V to 0.3125V.

This pin is connected to the MAX3643’s VMSET input to control the modulation current.

15

BMD Monitor Diode Input (Feedback Voltage, Transmit Power Monitor)

16

VCC Power Supply Input

6 _____________________________________________________________________

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