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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX3765 Datasheet

1.25Gbps/2.5Gbps Limiting Amplifiers

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19-1523; Rev 7, 2/06
+3.0V to +5.5V, 1.25Gbps/2.5Gbps
Limiting Amplifiers
General Description
The 1.25Gbps MAX3264/MAX3268/MAX3768 and the
2.5Gbps MAX3265/MAX3269/MAX3765 limiting ampli-
fiers are designed for Gigabit Ethernet and Fibre
Channel optical receiver systems. The amplifiers accept
a wide range of input voltages and provide constant-
level output voltages with controlled edge speeds.
Additional features include RMS power detectors with
programmable loss-of-signal (LOS) indication, an
optional squelch function that mutes the data output sig-
nal when the input voltage falls below a programmable
threshold, and excellent jitter performance.
The MAX3264/MAX3265/MAX3765 feature current-mode
logic (CML) data outputs that are tolerant of inductive
connectors and a 16-pin TSSOP package, making these
circuits ideal for GBIC receivers. The MAX3268/
MAX3269/MAX3768 feature standards-compliant posi-
tive-referenced emitter-coupled logic (PECL) data out-
puts and are available in a tiny 10-pin µMAX package
that is ideal for small-form-factor (SFF) receivers.
Applications
Gigabit Ethernet Optical Receivers
Fibre Channel Optical Receivers
System Interconnect
ATM Optical Receivers
Selector Guide appears at end of data sheet.
Pin Configurations appear at end of data sheet.
CAZ
Features
+3.0V to +5.5V Supply Voltage
Low Deterministic Jitter
14ps (MAX3264)
11ps (MAX3265/MAX3765)
150ps (max) Edge Speed (MAX3265/MAX3765)
300ps (max) Edge Speed (MAX3264)
Programmable Signal-Detect Function
Choice of CML or PECL Output Interface
10-Pin µMAX or 16-Pin TSSOP Package
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX3264CUE
0°C to +70°C
16 TSSOP-EP*
MAX3264CUE+
0°C to +70°C
16 TSSOP-EP*
MAX3264C/D
0°C to +70°C
Dice**
MAX3265CUE
0°C to +70°C
16 TSSOP-EP*
MAX3265CUE+
0°C to +70°C
16 TSSOP-EP*
MAX3265CUB
0°C to +70°C
10 µMAX-EP*
MAX3265CUB+
0°C to +70°C
10 µMAX-EP*
MAX3265EUE
-40°C to +85°C
16 TSSOP-EP*
MAX3265EUE+
-40°C to +85°C
16 TSSOP-EP*
MAX3265C/D
0°C to +70°C
Dice**
+Denotes lead-free package.
*EP = Exposed paddle.
**Dice are designed to operate from 0°C to +70°C, but are tested
and guaranteed only at TA = +25°C.
Ordering Information continued at end of data sheet.
Typical Operating Circuits
VCC
VCC
CAZ1 CAZ2
MAX3266
MAX3267
CIN
0.01µF
IN+
100
IN-
CIN
0.01µF
TH SQUELCH
RTH
Typical Operating Circuits continued at end of data sheet.
N.C.
VCC
MAX3264CUE
MAX3265CUE
MAX3265EUE
RTERM
0.01µF
OUT+
0.01µF
OUT-
RL
100
LOS LOS LEVEL
LOSS N.C.
OF
SIGNAL
N.C.
RTERM
VCC
________________________________________________________________ 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.
http://www.Datasheet4U.com


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX3765 Datasheet

1.25Gbps/2.5Gbps Limiting Amplifiers

No Preview Available !

+3.0V to +5.5V, 1.25Gbps/2.5Gbps
Limiting Amplifiers
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VCC) ............................................-0.5V to +6.0V
Voltage at IN+, IN- ..........................(VCC - 2.4V) to (VCC + 0.5V)
Voltage at SQUELCH, CAZ1,
CAZ2, LOS, LOS, TH..................................-0.5V to (VCC + 0.5V)
Voltage at LEVEL...................................................-0.5V to +2.0V
Current into LOS, LOS ..........................................-1mA to +9mA
Differential Input Voltage (IN+ - IN-) .....................................2.5V
Continuous Current at
CML Outputs (OUT+, OUT-) ..........................-25mA to +25mA
Continuous Current at PECL Outputs (OUT+, OUT-) .........50mA
Continuous Power Dissipation (TA = +70°C)
16-Pin TSSOP (derate 27mW/°C above +70°C) .........2162mW
10-Pin µMAX (derate 20mW/°C above +70°C) ...........1600mW
Operating Ambient Temperature Range .............-40°C to +85°C
Storage Temperature Range .............................-55°C to +150°C
Processing Temperature (dice) .......................................+400°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond 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
(Data outputs terminated per Figure 1, VCC = +3.0V to +5.5V, TA = 0°C to +70°C. Typical values are at VCC = +3.3V, TA = +25°C,
unless otherwise noted.) (Note 1)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Data Rate
MAX3264/MAX3268/MAX3768
MAX3265/MAX3269/MAX3765
1.25
Gbps
2.5
Input Voltage Range
MAX3264/MAX3268/MAX3768
MAX3265/MAX3269/MAX3765
5 1200
mV
10 1200
Deterministic Jitter
MAX3264/MAX3268/MAX3768 (Notes 2, 3)
MAX3265/MAX3269/MAX3765 (Notes 2, 3)
14 30
psp-p
11 25
Random Jitter
MAX3264/MAX3268/MAX3768 (Notes 2, 4)
MAX3265/MAX3269/MAX3765 (Notes 2, 4)
15
8 psRMS
MAX3264 (Note 5)
80 175 300
Data Output Edge Speed
MAX3265/MAX3765 (Note 6)
MAX3268/MAX3768 (Note 5)
100 150
ps
80 150 300
MAX3269 (Note 6)
100 150
LOS Hysteresis
(Notes 2, 7)
2.5 4.4
dB
LOS Assert/Deassert Time
(Notes 7, 8)
1 µs
Low LOS Assert Level
RTH = 2.5k
MAX3264/MAX3268/MAX3768
MAX3265/MAX3269/MAX3765
1.20
2.20
2.6
4.8
mV
Low LOS Deassert Level
RTH = 2.5k
MAX3264/MAX3268/MAX3768
MAX3265/MAX3269/MAX3765
4.5
8.5
mV
2 _______________________________________________________________________________________
http://www.Datasheet4U.com


Part Number MAX3765
Description 1.25Gbps/2.5Gbps Limiting Amplifiers
Maker Maxim Integrated
Total Page 17 Pages
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