DS1863 Datasheet, PDF (1/61 Pages) Maxim Integrated Products – Burst-Mode PON Controller With Integrated Monitoring

Rev 0; 10/06
Burst-Mode PON Controller
With Integrated Monitoring
General Description
The DS1863 controls and monitors all the burst-mode
transmitter and video receiver biasing functions for a
passive optical network (PON) triplexer. It has an APC
loop with tracking-error compensation that provides the
reference for the laser-driver’s bias current, and a tem-
perature indexed lookup table (LUT) that controls the
modulation current. It continually monitors for high output
current, high bias current, and low and high transmit
power with its internal fast comparators to ensure that
laser shutdown for eye safety requirements are met with-
out adding external components. Five ADC channels
monitor V_CC, internal temperature, and three external
monitor inputs (MON1–3) that can be used to meet trans-
mitter and receive monitoring requirements.
Applications
BPON, GPON and GEPON, Burst-Mode Transmitters
Laser Control and Monitoring
Broadband Local Access
Features
o Meets BPON, GPON, and GEPON Timing
Requirements for Burst-Mode Transceivers
o Bias Current Control provided by APC Loop with
Tracking Error Compensation
o Modulation Current is Controlled by a
Temperature-Indexed Lookup Table
o Supports 0dB, -3dB, -6dB Power Leveling
Settings with no Additional Calibration
o Internal Direct-to-Digital Temperature Sensor
o Five Analog Monitor Channels: Temperature, V_CC,
MON1, MON2, and MON3
o Comprehensive Fault Management System with
Maskable Laser Shutdown Capability
o Two-Level Password Access to Protect
Calibration Data
o 120 Bytes of Password 1 (PW1) Protected
Nonvolatile Memory
o 128 Bytes of Password 2 (PW2) Protected
Nonvolatile Memory
o I²C-Compatible Interface for Calibration and
Monitoring
o Operating Voltage: 2.85V to 5.5V
o Operating Temperature: -40°C to +95°C
o 16-Pin Lead-Free TSSOP Package
Pin Configuration
TOP VIEW
+
BEN 1
TX-D 2
N.C. 3
TX-F 4
FETG 5
DS1863
SDA 6
SCL 7
GND 8
16 V_CC
15 BMD
14 MOD
13 BIAS
12 GND
11 MON3
10 MON2
9 MON1
TSSOP
(173 mils)
Ordering Information
PART
DS1863E+
DS1863E+T&R
TEMP RANGE
-40°C to +95°C
-40°C to +95°C
+Denotes lead-free package.
T&R denotes tape-and-reel.
PIN-PACKAGE
16 TSSOP
16 TSSOP
______________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.