MAX3263CAG Datasheet Download

Part No.:
MAX3263CAG
Download:
Download Datasheet
Description:
[Single +5V, Fully Integrated, 155Mbps Laser Diode Driver]
File Size:
146 K
Page:
12 Pages
Logo:
Manufacturer:
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
PCB Prototype
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19-0432; Rev 1b; 4/98
Single +5V, Fully Integrated,
155Mbps Laser Diode Driver
________________General Description
The MAX3263 is a complete, easy-to-program, single
+5V-powered, 155Mbps laser diode driver with com-
plementary enable inputs and automatic power control
(APC). The MAX3263 accepts differential PECL inputs
and provides complementary output currents. A tem-
perature-stabilized reference voltage is provided to
simplify laser current programming. This allows modu-
lation current to be programmed up to 30mA and bias
current to be programmed from up to 60mA with two
external resistors.
An APC circuit is provided to maintain constant laser
power in transmitters that use a monitor photodiode.
Only two external resistors are required to implement
the APC function.
The MAX3263’s fully integrated feature set includes a
TTL-compatible laser failure indicator and a program-
mable slow-start circuit to prevent laser damage. The
slow-start is preset to 50ns and can be extended by
adding an external capacitor.
____________________________Features
o
Rise Times Less than 1ns
o
Differential PECL Inputs
o
Single +5V Supply
o
Automatic Power Control
o
Temperature-Compensated Reference Voltage
o
Complementary Enable Inputs
MAX3263
_______________Ordering Information
PART
MAX3263CAG
TEMP. RANGE
0°C to +70°C
PIN-PACKAGE
24 SSOP
________________________Applications
Laser Diode Transmitters
155Mbps SDH/SONET
155Mbps ATM
_____________Typical Operating Circuit
+5V
0.01µF
VCCA VCCB
+5V
0.01µF
+5V
OUT+
PHOTO-
DIODE
IPIN
___________________Pin Configuration
TOP VIEW
VREF2 1
IPINSET 2
FAILOUT 3
GNDB 4
VIN+ 5
VIN- 6
GNDB 7
VCCB
8
24 SLWSTRT
23 IPIN
22 VCCA
21 GNDA
PECL
INPUTS
VIN+
VIN-
GNDA
GNDB
LASER
MAX3263
ENB+
IBIASOUT
FERRITE BEAD
+5V
MAX3263
20 OUT+
19 GNDA
18 OUT-
17 GNDA
16 IBIASOUT
15 IMODSET
14 IBIASSET
13 IBIASFB
VREF1
ENB-
SLWSTRT
OUT-
FAILOUT
IBIASFB
2.7k
ENB- 9
ENB+ 10
VREF1 11
OSADJ 12
VREF2
IBIASSET
IMODSET
OSADJ
IPINSET
SSOP
________________________________________________________________
Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.