MAX3272AETP+T Maxim Integrated Products, MAX3272AETP+T Datasheet

IC AMP LIMITING 20-TQFN

MAX3272AETP+T

Manufacturer Part Number
MAX3272AETP+T
Description
IC AMP LIMITING 20-TQFN
Manufacturer
Maxim Integrated Products
Type
Limiting Amplifierr
Datasheet

Specifications of MAX3272AETP+T

Applications
Optical Networks
Mounting Type
Surface Mount
Package / Case
20-TQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX3272/MAX3272A 2.5Gbps limiting amplifiers
accept a wide range of input voltages and provide a
constant-level output voltage with controlled edge
speeds. Additional features include 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 an output polarity selector. These parts
exhibit excellent jitter performance and have low power
dissipation.
The MAX3272/MAX3272A feature current-mode logic
(CML) data outputs that are tolerant of inductive con-
nectors, and are available in a 4mm
age or in die form (MAX3272 only). Along with the
MAX3271, the MAX3272/MAX3272A are ideal for low-
power, compact optical receivers.
19-2269; Rev 3; 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.
Typical Operating Circuits continue at end of data sheet.
Gigabit Ethernet Optical Receivers
Fibre Channel Optical Receivers
System Interconnects
2.5Gbps Optical Receivers
SONET/SDH Receivers
MAX3271
________________________________________________________________ Maxim Integrated Products
General Description
+3.3V
Applications
C
4mm QFN pack-
CLOS
0.1µF
0.1µF
R
IN+
IN-
CAZ1
OUTPOL
CLOS
TH
TH
+3.3V, 2.5Gbps Low-Power
C
AZ
100Ω
SQUELCH
CAZ2
♦ Single +3.3V Power Supply
♦ 33mA Supply Current
♦ 5ps Deterministic Jitter
♦ 90ps Edge Speed
♦ Output Squelch Function
♦ Programmable Loss-of-Signal Function
♦ CML Output Interface
♦ 20-Pin 4mm
♦ Selectable Output Polarity
+ Denotes Lead-Free Package.
*Dice are designed and guaranteed to operate from -40°C to
+85°C, but are tested only at T
Pin Configuration appears at end of data sheet.
MAX3272EGP
MAX3272E/D
MAX3272AETP+ -40°C to +85°C
MAX3272AEGP
V
CC
+3.3V
GND
PART
SIGNAL
LOSS
LOS
OF
Limiting Amplifiers
MAX3272A
MAX3272/
LOS
Typical Operating Circuit
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
4mm QFN or Thin QFN Package
LEVEL
OUT+
OUT-
Ordering Information
A
= +25°C.
SDI+
SDI-
PIN-
PACKAGE
20 QFN
Dice*
20 Thin QFN T2044-3
20 QFN
MAX3873
+3.3V
V
CDR
GND
CC
SCLKO+
SCLKO-
Features
SDO+
SDO-
PACKAGE
CODE
G2044-3
G2044-3
1

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MAX3272AETP+T Summary of contents

Page 1

... Optical Receivers SONET/SDH Receivers +3.3V MAX3271 Typical Operating Circuits continue at end of data sheet. ________________________________________________________________ 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. +3.3V, 2.5Gbps Low-Power ♦ Single +3.3V Power Supply ♦ ...

Page 2

Low-Power Limiting Amplifiers ABSOLUTE MAXIMUM RATINGS Power-Supply Voltage (V ) .................................-0.5V to +6.0V CC Voltage at IN+, IN- ..........................(V CC Voltage at SQUELCH, CAZ1, CAZ2, TH, CLOS ...............................................-0. LOS (MAX3272)...........................-0.5V to +6.0V Voltage at LOS, Voltage ...

Page 3

ELECTRICAL CHARACTERISTICS (continued +3.0V to +3.6V -40°C to +85°C. Typical values are PARAMETER SYMBOL High LOS Deassert Level LOS Output High Voltage LOS Output Low Voltage Squelch Input Current Note 1: Dice ...

Page 4

Low-Power Limiting Amplifiers (V = +3.3V +25°C, unless otherwise noted RANDOM JITTER vs. INPUT AMPLITUDE 100 1000 10,000 INPUT AMPLITUDE (mV ...

Page 5

T = +25°C, unless otherwise noted COMMON-MODE REJECTION RATIO 19.0 18.5 18.0 17.5 17.0 16.5 16.0 15.5 15.0 100k PIN NAME GND Supply Ground 2 IN+ Noninverted Input Signal 3 IN- Inverted ...

Page 6

Low-Power Limiting Amplifiers 50Ω 50Ω CONTROL MAX3272/ MAX3272A R TH CML SUPPLY CURRENT ( Figure 1. Power-Supply Current Measurement MAX3272/ MAX3272A IN+ CML 100Ω INPUT BUFFER IN- OFFSET CORRECTION Figure 2. Functional ...

Page 7

V CC 540Ω 0.25pF IN+ 110Ω IN- 0.25pF ESD STRUCTURES GND Figure 3. Input Circuit Two control voltages V , and V ASSERT the LOS assert and deassert levels. To prevent LOS chatter in the region of the programmed threshold, ...

Page 8

Low-Power Limiting Amplifiers V CC 50Ω 50Ω GND LEVEL Figure 5. CML Output Circuit CML Output Buffer The MAX3272/MAX3272A CML output circuit (Figure 5) provides high tolerance to impedance mismatches and inductive connectors. The output current can be ...

Page 9

Pin Configuration TOP VIEW GND 1 IN+ 2 IN- 3 MAX3272/ GND 4 MAX3272A QFN* NOTE: EXPOSED PAD MUST BE CONNECTED TO SUPPLY GROUND ...

Page 10

Low-Power Limiting Amplifiers +3.3V MAX3271 *THE MAX3202E PROVIDES ESD PROTECTION ON THE LOS PIN Wire Bonding Die For high-current density and reliable operation, the MAX3272 uses gold metallization. Make connections to the dice with gold wire only, and ...

Page 11

V CC (PAD 21) GND (PAD 1) IN+ (PAD 2) IN- (PAD 3) GND (PAD 4) TH (PAD (PAD 6) TRANSISTOR COUNT: 726 PROCESS: SiGe Bipolar SUBSTRATE: Insulator, Connect to GND DIE SIZE: 1.68mm ✕ 1.57mm DIE ...

Page 12

Low-Power Limiting Amplifiers (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.) 12 ______________________________________________________________________________________ Package Information PACKAGE OUTLINE 12,16,20,24L QFN, 4x4x0. 21-0106 ...

Page 13

For the latest package outline information www.maxim-ic.com/packages.) ______________________________________________________________________________________ +3.3V, 2.5Gbps Low-Power Limiting Amplifiers Package Information (continued) PACKAGE OUTLINE 12,16,20,24L QFN, 4x4x0. 21-0106 ...

Page 14

... 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. 14 ____________________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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