MAX3645EEE+ Maxim Integrated Products, MAX3645EEE+ Datasheet

IC AMP LIMITING 16-QSOP

MAX3645EEE+

Manufacturer Part Number
MAX3645EEE+
Description
IC AMP LIMITING 16-QSOP
Manufacturer
Maxim Integrated Products
Type
Limiting Amplifierr
Datasheet

Specifications of MAX3645EEE+

Applications
Data Quantizer, Optical Receivers
Mounting Type
Surface Mount
Package / Case
16-QSOP
Input Voltage Range (max)
5.5 V
Operating Supply Voltage
3.3 V or 5 V
Supply Current
18 mA (Typ) @ 3.3 V
Operating Temperature Range
+ 85 C
Bandwidth
250 MHz
Input Offset Voltage
2 uV
Mounting Style
SMD/SMT
Number Of Channels
1
Power Dissipation
540 mW
Amplifier Type
Limiting
Supply Voltage Range
2.97V To 5.5V
Amplifier Case Style
QSOP
No. Of Pins
16
Termination Type
SMD
Rohs Compliant
Yes
Filter Terminals
SMD
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX3645 limiting amplifier functions as a data
quantizer and is pin compatible with the Mindspeed
MC2045-2 and MC2045-2Y postamplifiers. The amplifi-
er accepts a wide range of input voltages and provides
constant-level positive emitter-coupled logic (PECL)
output voltages with controlled edge speeds.
The MAX3645 features an integrated power detector
with complementary PECL loss-of-signal (LOS) outputs
that indicate when the input power level drops below a
programmable threshold. An optional squelch function
holds the data outputs at static levels during a
LOS condition.
The MAX3645 operates from a single +3.3V or +5.0V
power supply over a -40°C to +85°C temperature
range. It is available in 16-pin SO and 16-pin QSOP
packages.
19-3026; Rev 1; 11/04
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.
+2.97V to +5.5V, 125Mbps to 200Mbps Limiting
SONET 155Mbps Transceivers
Fast Ethernet Receivers
FDDI 125Mbps Receivers
FTTx Receivers
ESCON Receivers
________________________________________________________________ Maxim Integrated Products
General Description
Amplifier with Loss-of-Signal Detector
*FUTURE PRODUCT
PIN K
IN
MAX3644*
V
V
GND
Applications
CC
CC
OUT+
OUT-
0.1µF
0.1µF
C
DIN+
DIN-
1nF
SD
GNDA
CSD V
V
TH
CCA
CC
R
100Ω
MAX3645
♦ Pin Compatible with the Mindspeed
♦ 500µV Input Sensitivity (BER = 10
♦ Compatible with 4B/5B Data Coding
♦ Programmable LOS Threshold
♦ Stable LOS Threshold Over Supply Range
♦ Output Disable Function and Automatic Squelch
♦ Single +3.3V or +5.0V Power Supply
♦ 18mA Supply Current
TH
+Denotes lead-free package.
MAX3645ESE
MAX3645EEE
MAX3645EEE+
CAZ1
MC2045-2/MC2045-2Y
0.1µF
C
V
AZ
CC
LOS
CAZ2
PART
- 2V
50Ω
TOP VIEW
GNDE
V
V
CCE
CC
DOUT+
DOUT-
N.C.
LOS
Typical Application Circuit
GNDA
CAZ2
CAZ1
DIN+
V
DIN-
CSD
CCA
DIS
50Ω
1
2
6
3
4
5
7
8
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
Ordering Information
TEMP RANGE
V
CC
SO/QSOP
MAX3645
- 2V
50Ω
Pin Configuration
50Ω
16
15
14
13
12
11
10
9
TH
N.C.
V
DOUT+
DOUT-
GNDE
LOS
LOS
CCE
-12
PIN-PACKAGE
16 SO
16 QSOP
16 QSOP
)
Features
1

Related parts for MAX3645EEE+

MAX3645EEE+ Summary of contents

Page 1

... Compatible with 4B/5B Data Coding ♦ Programmable LOS Threshold ♦ Stable LOS Threshold Over Supply Range ♦ Output Disable Function and Automatic Squelch ♦ Single +3.3V or +5.0V Power Supply ♦ 18mA Supply Current PART MAX3645ESE MAX3645EEE MAX3645EEE+ Applications +Denotes lead-free package 0.1µF V ...

Page 2

Limiting Amplifier with Loss-of-Signal Detector ABSOLUTE MAXIMUM RATINGS Power-Supply Voltage ( ....................-0.5V to +7.0V CCA CCE Voltage at CAZ1, CAZ2, DIN+, DIN-, CSD, DIS, TH ................................-0. PECL Output Current ...

Page 3

Limiting Amplifier with Loss-of-Signal Detector ELECTRICAL CHARACTERISTICS (continued +2.97V to +5.5V, PECL outputs are terminated with 50Ω +85°C. Typical values are +3.3V PARAMETER SYM ...

Page 4

Limiting Amplifier with Loss-of-Signal Detector (V = 3.3V, PECL outputs terminated with 50Ω SUPPLY CURRENT vs. TEMPERATURE (EXCLUDES PECL OUTPUT CURRENTS 5. ...

Page 5

Limiting Amplifier with Loss-of-Signal Detector (V = 3.3V, PECL outputs terminated with 50Ω LOSS-OF-SIGNAL WITH SQUELCH (155Mbps OUT LOS _______________________________________________________________________________________ Typical Operating Characteristics (continued) - 2V, R ...

Page 6

Limiting Amplifier with Loss-of-Signal Detector MINDSPEED MAXIM MC2045-2 PIN MAX3645 MC2045-2Y PIN NAME PIN NAME Offset-Correction-Loop Capacitor Connection. A capacitor connected between this pin and 1 CAZ- CAZ2 CAZ1 sets the time constant of ...

Page 7

Limiting Amplifier with Loss-of-Signal Detector TH CSD POWER DETECTOR DIN+ DIN- OFFSET CORRECTION C INT CAZ1 CAZ2 Figure 2. Functional Diagram The external autozero capacitor (C internal capacitance (C ), determines the time con- ...

Page 8

Limiting Amplifier with Loss-of-Signal Detector V CC Figure 4. Equivalent PECL Output Circuit 8 _______________________________________________________________________________________ TRANSISTOR COUNT: 1026 PROCESS: Silicon bipolar DOUT+/LOS DOUT+/LOS ESD STRUCTURES Chip Information ...

Page 9

Limiting Amplifier with Loss-of-Signal Detector (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages TOP VIEW D B ...

Page 10

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 10 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2004 Maxim Integrated Products Package Information (continued) Printed USA is a registered trademark of Maxim Integrated Products ...

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