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What is MAX3269?

This electronic component, produced by the manufacturer "Maxim Integrated", performs the same function as "1.25Gbps/2.5Gbps Limiting Amplifiers".


MAX3269 Datasheet PDF - Maxim Integrated

Part Number MAX3269
Description 1.25Gbps/2.5Gbps Limiting Amplifiers
Manufacturers Maxim Integrated 
Logo Maxim Integrated Logo 


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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

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MAX3269 equivalent
+3.0V to +5.5V, 1.25Gbps/2.5Gbps
Limiting Amplifiers
(TA = +25°C, unless otherwise noted.)
OUTPUT VOLTAGE
vs. INPUT VOLTAGE
1700
1500
MAX3264/MAX3268
1300
1100
900 MAX3265/MAX3269/MAX3765
700
500
300
0
2 4 6 8 10
INPUT VOLTAGE (mV)
12
MAX3264/MAX3268/MAX3768
DETERMINISTIC JITTER
vs. INPUT AMPLITUDE
30
25
20
15
10
5
0
0 200 400 600 800 1000 1200
INPUT AMPLITUDE (mV)
MAX3265/MAX3269/MAX3765
RANDOM JITTER
vs. INPUT AMPLITUDE
8
7
6
5
4
3
2
1
0
0 10 20 30 40 50
INPUT AMPLITUDE (mV)
Typical Operating Characteristics
MAX3264
LOS HYSTERESIS vs. TEMPERATURE
6.5
6.0
5.5
5.0
4.5
RTH = 25k
4.0
RTH = 7k
3.5
0
10 20 30 40 50 60 70
TEMPERATURE (°C)
MAX3264/MAX3268/MAX3768
RANDOM JITTER
vs. INPUT AMPLITUDE
16
14
12
10
8
6
4
2
0
0 10 20 30 40 50
INPUT AMPLITUDE (mV)
LOSS OF SIGNAL WITH SQUELCH
VIN
MAX3265EUE
LOS HYSTERESIS vs. TEMPERATURE
6.5
6.0
5.5
5.0 RTH = 4.6k
4.5
4.0 RTH = 16k
3.5
-40
30
-15 10 35 60
TEMPERATURE (°C)
85
MAX3265/MAX3269/MAX3765
DETERMINISTIC JITTER
vs. INPUT AMPLITUDE
25
20
15
10
5
0
0 200 400 600 800 1000 1200
INPUT AMPLITUDE (mV)
MAX3268/MAX3768
DATA OUTPUT EYE DIAGRAM
(MINIMUM INPUT)
VOUT
300mV/div
VLOS
500ns/div
200ps/div
_______________________________________________________________________________________ 5
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