900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




Maxim Integrated Semiconductor Electronic Components Datasheet

MAX3795 Datasheet

1Gbps to 4.25Gbps Multirate VCSEL Driver

No Preview Available !

19-3387; Rev 0; 8/04
1Gbps to 4.25Gbps Multirate VCSEL
Driver with Diagnostic Monitors
General Description
The MAX3795 is a high-speed VCSEL driver for small-
form-factor (SFF) and small-form-factor pluggable (SFP)
fiber optic transmitters. It contains a bias generator, a
laser modulator, and comprehensive safety features.
The automatic power control (APC) adjusts the laser
bias current to maintain average optical power over
changes in temperature and laser properties. The dri-
www.DataSheevcteo4rUnf.aicgocumcroamtiomnso.dates common-cathode and differential
The MAX3795 operates up to 4.25Gbps. It can switch
up to 15mA of laser modulation current and source up
to 15mA of bias current. Adjustable temperature com-
pensation is provided to keep the optical extinction
ratio within specifications over the operating tempera-
ture range. The MAX3795 interfaces with the Dallas
DS1856/DS1859 to meet SFF-8472 timing and diagnos-
tic requirements. The MAX3795 accommodates various
VCSEL packages, including low-cost TO-46 headers.
The MAX3795 safety circuit detects faults that could
cause hazardous light levels and disables the VCSEL
output. The safety circuits are compliant with SFF and
SFP multisource agreements (MSAs).
The MAX3795 is available in a compact 4mm 4mm,
24-pin thin QFN package and operates over the -40°C
to +85°C temperature range. The MAX3795 is pin-for-
pin compatible with the MAX3740A and is available in
lead-free packages.
Applications
Multirate (1Gbps to 4.25Gbps) SFP/SFF Modules
Gigabit Ethernet Optical Transmitters
Fibre-Channel Optical Transmitters
Features
Supports All SFF-8472 Digital Diagnostics
3.3V ±10% Single Supply
2mA to 15mA Modulation Current
1mA to 15mA Bias Current
52ps Transition Time
8.4ps Deterministic Jitter
Optional Peaking Current to Improve VCSEL Edge
Speed
Supports Common-Cathode and Differential
Configuration
Safety Circuits Compliant with SFF and SFP
MSAs
Pin Compatible to MAX3740A
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
MAX3795ETG -40°C to +85°C 24 Thin QFN (4mm x 4mm)
MAX3795ETG+ -40°C to +85°C 24 Thin QFN (4mm x 4mm)
+Denotes lead-free package.
Pin Configuration
TOP VIEW
GND
TX_DISABLE
IN+
IN-
FAULT
SQUELCH
1
2
3
4
5
6
MAX3795
18 BIAS
17 BIASSET
16 VCC
15 OUT+
14 OUT-
13 GND
THIN QFN (4mm x 4mm)
EXPOSED PAD IS CONNECTED TO GND
________________________________________________________________ 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.


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX3795 Datasheet

1Gbps to 4.25Gbps Multirate VCSEL Driver

No Preview Available !

1Gbps to 4.25Gbps Multirate VCSEL Driver
with Diagnostic Monitors
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VCC) ............................................-0.5V to +4.0V
Voltage at TX_DISABLE, IN+, IN-, FAULT,
SQUELCH, TC1, TC2, MODSET, PEAKSET, BIASSET,
BIAS, BIASMON, COMP, MD, REF,
PWRMON ...............................................-0.5V to (VCC + 0.5V)
Voltage at OUT+, OUT- .........................(VCC - 2V) to (VCC + 1V)
Current into FAULT ............................................ -1mA to +25mA
Current into OUT+, OUT- ....................................................60mA
Continuous Power Dissipation (TA = +85°C)
24-Pin Thin QFN
(derate 20.8mW/°C above +85°C).................................1354mW
Storage Temperature Range .............................-55°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
www.DataSheeStt4reUs.sceosmbeyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VCC = +2.97V to +3.63V, TA = -40°C to +85°C. Typical values are at VCC = +3.3V, TC1 and TC2 are shorted, PEAKSET open, TA =
+25°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Supply Current
FAULT OUTPUT
Output High Voltage
Output Low Voltage
TX_DISABLE INPUT
Input Impedance
Input High Voltage
Input Low Voltage
Power-Down Time
SQUELCH
Squelch Threshold
Squelch Hysteresis
Time to Squelch Data
Time to Resume from Squelch
BIAS GENERATOR
Maximum Bias Pin Voltage
Bias Current
Accuracy of Programmed Bias
Current
ICC
ICC-SHDN
SQUELCH set low,
TX_DISABLE set low,
peaking is not used
(Note 1)
IMOD = 2mAP-P
IMOD = 15mAP-P
Additional current when peaking is used,
RPEAK = 1.18k
Additional current when SQUELCH is high
Total current when TX_DISABLE is high
VOH
VOL
RLOAD = 10kto 2.97V
RLOAD = 4.7kto 3.63V
RPULL
VIH
VIL
The time for ICC to reach ICC-SHDN when
TX_DISABLE transitions high
(Note 3)
(Note 3)
VBIAS-MAX
IBIAS
BIAS
Referenced to VCC
Minimum
Maximum
5mA IBIAS 15mA
1mA IBIAS 5mA
35
71 81
mA
15
5 10
7
2.4 V
0.4 V
4.7 8 10.0 k
2.0 V
0.8 V
50 µs
25
6
0.02
0.02
85
5.00
5.00
mVP-P
mVP-P
µs
µs
-0.65
1
15
-8 +8
-12 +12
V
mA
%
2 _______________________________________________________________________________________


Part Number MAX3795
Description 1Gbps to 4.25Gbps Multirate VCSEL Driver
Maker Maxim Integrated Products
Total Page 15 Pages
PDF Download

MAX3795 Datasheet PDF

View PDF for Mobile








Similar Datasheet

1 MAX379 (MAX378 / MAX379) Fault-Protected Analog Multiplexers
Maxim Integrated Products
2 MAX3793 1Gbps to 4.25Gbps Multirate Transimpedance Amplifier
Maxim
3 MAX3795 1Gbps to 4.25Gbps Multirate VCSEL Driver
Maxim Integrated Products
4 MAX3797 Low-Power Transimpedance Amplifier
Maxim Integrated
5 MAX3798 Low-Power SFP Limiting Amplifier and VCSEL Driver
Maxim Integrated Products
6 MAX3799 SFP+ Multirate Limiting Amplifier And VCSEL Driver
Maxim Integrated Products





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy