參數(shù)資料
型號(hào)： MAX3656ETG
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 其它接口
英文描述： 155Mbps to 2.5Gbps Burst-Mode Laser Driver
中文描述： SPECIALTY INTERFACE CIRCUIT, QCC24
封裝： 4 X 4 MM, TQFN-24
文件頁(yè)數(shù)： 1/16頁(yè)
文件大小： 734K
代理商： MAX3656ETG
General Description
The MAX3656 is a burst-mode laser driver that oper-
ates at data rates from 155Mbps up to 2.5Gbps. The
laser driver accepts either positive-referenced emitter-
coupled logic (PECL) or current-mode logic (CML) data
inputs and provides bias and modulation current for the
laser diode. The device can switch the laser diode from
a completely dark (off) condition to a full (on) condition
(with proper bias and modulation currents) in less than
2ns. The MAX3656 incorporates DC-coupling between
laser driver and laser diode and operates with a single-
supply voltage as low as +3.0V.
A digital automatic power-control (APC) loop is provided
to maintain the average optical power over the full tem-
perature range and lifetime. The APC loop is functional
for a minimum burst on-time of 576ns and minimum
burst off-time of 96ns, with no limit on the maximum
burst on- or off-time. A fail monitor is provided to indi-
cate when the APC loop can no longer maintain the
average power. The MAX3656 can be configured for
nonburst-mode applications (continuous mode) by con-
necting burst enable (BEN) high. For power saving, the
MAX3656 provides enabling and disabling functionality.
The modulation current can be set from 10mA to 85mA
and the bias current can be set from 1mA to 70mA.
The MAX3656 is packaged in a small, 24-pin, 4mm
4mm thin QFN package and consumes only 132mW
(typ), excluding bias and modulation currents.
Applications
Fiber-to-the-Home (FTTH) and Fiber-to-the-
Business (FTTB) Broadband Access Systems
Passive Optical Network (PON) Transmitters
APON, EPON, and GPON Upstream Transmitters
Pin Configuration
Features
o
Multirate Operation from 155Mbps to 2.5Gbps
o
Burst Enable/Disable Delay <2ns
o
Burst On-Time of 576ns to Infinity
o
Infinite Bias-Current Hold Time Between Bursts
o
DC-Coupled Operation with Single +3.3V Power
Supply
o
40mA Typical Supply Current
o
Programmable Bias Current from 1mA to 70mA
o
Programmable Modulation Current from 10mA
to 85mA
o
Automatic Average Power Control with Failure
Monitor (No C
APC
Capacitor Needed)
o
APC Loop Initialization
≤
3 Bursts
M
155Mbps to 2.5Gbps Burst-Mode
Laser Driver
________________________________________________________________
Maxim Integrated Products
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.
1
V
CC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
IN+
IN-
V
CC
BEN+
BEN-
THIN QFN
G
V
C
G
L
BIAS-
BIAS+
V
CC
OUT+
OUT-
V
CC
G
M
V
C
B
M
A
TOP VIEW
**EXPOSED PAD IS CONNECTED TO GND
MAX3656
E
F
SERIAL
DATA
SOURCE
IN+
IN-
BEN+
BEN-
V
C
100
100
OUT-
A
M
B
E
G
F
L
OUT+
BIAS+
BIAS-
MD
MAX3656
BURST
CONTROL
V
CC
V
CC
V
CC
Typical Application Circuit
19-2790; Rev 1; 5/04
+
Denotes lead-free package.
*
Dice are designed to operate from T
J
= -40°C to +120°C, but
are only tested and guaranteed at T
A
= +25°C.
**
EP = Exposed pad.
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
PKG
CODE
—
T2444-1
—
MAX3656E/D
MAX3656ETG
MAX3656ETG+ -40
°
C to +85
°
C
—
Dice*
24 Thin QFN-EP**
24 Thin QFN-EP**
-40
°
C to +85
°
C
Functional Diagram appears at end of data sheet.
相關(guān)PDF資料
PDF描述
MAX3656 Dual LVDS Transmitter/Receiver 16-SOIC -40 to 85
MAX3656E Dual LVDS Transmitter/Receiver 16-SOIC -40 to 85
MAX3664 Single LVDS Transmitter 5-SOT-23 -40 to 85
MAX3664ESA Single LVDS Transmitter 5-SOT-23 -40 to 85
MAX3665 Single LVDS Transmitter 5-SOT-23 -40 to 85
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX3656ETG+ 功能描述:激光驅(qū)動(dòng)器 .155-2.5Gbps Burst Mode Laser Driver RoHS:否 制造商:Micrel 數(shù)據(jù)速率:4.25 Gbps 工作電源電壓:3 V to 3.6 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-16 封裝:Tube
MAX3656ETG+ 制造商:Maxim Integrated Products 功能描述:IC LASER DIODE DRIVER 2.5GBPS TQFN-24
MAX3656ETG+D 制造商:Maxim Integrated Products 功能描述:LASER DRVR 2.5GBPS 1CH 24TQFN EP - Rail/Tube
MAX3656ETG+T 功能描述:激光驅(qū)動(dòng)器 .155-2.5Gbps Burst Mode Laser Driver RoHS:否 制造商:Micrel 數(shù)據(jù)速率:4.25 Gbps 工作電源電壓:3 V to 3.6 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-16 封裝:Tube
MAX3656ETG+TD 制造商:Maxim Integrated Products 功能描述:LASER DRVR 2.5GBPS 1CH 24TQFN EP - Tape and Reel
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