MAX3268CUB+ Maxim Integrated Products, MAX3268CUB+ Datasheet

IC AMP LIMITING 1.25GBPS 10-UMAX

MAX3268CUB+

Manufacturer Part Number
MAX3268CUB+
Description
IC AMP LIMITING 1.25GBPS 10-UMAX
Manufacturer
Maxim Integrated Products
Type
Limiting Amplifierr
Datasheet
1.MAX3768CUB.pdf (17 pages)

Specifications of MAX3268CUB+

Applications
Optical Networks
Mounting Type
Surface Mount
Package / Case
10-MSOP Exposed Pad, 10-HMSOP, 10-eMSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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.
19-1523; Rev 7, 2/06
Selector Guide appears at end of data sheet.
Pin Configurations appear at end of data sheet.
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 continued at end of data sheet.
Gigabit Ethernet Optical Receivers
Fibre Channel Optical Receivers
System Interconnect
ATM Optical Receivers
________________________________________________________________ Maxim Integrated Products
MAX3266
MAX3267
General Description
V
CC
+3.0V to +5.5V, 1.25Gbps/2.5Gbps
Applications
0.01µF
0.01µF
C
C
IN
IN
R
IN+
IN-
CAZ1
TH
TH
C
AZ
100Ω
SQUELCH
CAZ2
N.C.
♦ +3.0V to +5.5V Supply Voltage
♦ Low Deterministic Jitter
♦ 150ps (max) Edge Speed (MAX3265/MAX3765)
♦ Programmable Signal-Detect Function
♦ Choice of CML or PECL Output Interface
♦ 10-Pin µMAX or 16-Pin TSSOP Package
+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 T
Ordering Information continued at end of data sheet.
MAX3264CUE
MAX3264CUE+
MAX3264C/D
MAX3265CUE
MAX3265CUE+
MAX3265CUB
MAX3265CUB+
MAX3265EUE
MAX3265EUE+
MAX3265C/D
300ps (max) Edge Speed (MAX3264)
V
CC
14ps (MAX3264)
11ps (MAX3265/MAX3765)
PART
SIGNAL
LOSS
LOS
OF
Limiting Amplifiers
MAX3264CUE
MAX3265CUE
MAX3265EUE
Typical Operating Circuits
LOS
N.C.
LEVEL
N.C.
OUT+
OUT-
A
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
Ordering Information
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
= +25°C.
V
V
CC
CC
R
R
0.01µF
0.01µF
TERM
TERM
R
100Ω
L
16 TSSOP-EP*
16 TSSOP-EP*
Dice**
16 TSSOP-EP*
16 TSSOP-EP*
10 µMAX-EP*
10 µMAX-EP*
16 TSSOP-EP*
16 TSSOP-EP*
Dice**
PIN-PACKAGE
Features
1

Related parts for MAX3268CUB+

Image
Part Number
Description
Manufacturer
Datasheet
Request R
MAX326-MAX327
Part Number:
MAX326-MAX327
Description:
Quad, SPST, Ultra-Low Leakage, CMOS Analog Switches
Manufacturer:
MAXIM [Maxim Integrated Products]
Datasheet:
MAX326-MAX327.pdf (8 pages)
MAX7528KCWP
Part Number:
MAX7528KCWP
Description:
MAX7528KCWPMaxim Integrated Products [CMOS Dual 8-Bit Buffered Multiplying DACs]
Manufacturer:
Maxim Integrated Products
Datasheet:
MAX7528KCWP.pdf (12 pages)
MAX3261CCJ
Part Number:
MAX3261CCJ
Description:
Single +5V, fully integrated, 1.25Gbps laser diode driver.
Manufacturer:
Maxim Integrated Products
Datasheet:
MAX3261CCJ.pdf (12 pages)
MAX3263CAG
Part Number:
MAX3263CAG
Description:
Single +5V, fully integrated, 155Mbps laser diode driver.
Manufacturer:
Maxim Integrated Products
Datasheet:
MAX3263CAG.pdf (12 pages)
MAX8809AETL+
Part Number:
MAX8809AETL+
Description:
VRD11/VRD10, K8 Rev F 2/3/4-Phase PWM Controllers with Integrated Dual MOSFET Drivers
Manufacturer:
Maxim Integrated Products
Datasheet:
MAX8809AETL.pdf (50 pages)
MAX1535CETJ+T
Part Number:
MAX1535CETJ+T
Description:
Highly Integrated Level 2 SMBus Battery Chargers
Manufacturer:
Maxim Integrated Products
Datasheet:
MAX1535CETJT.pdf (39 pages)
DS2741N+
Part Number:
DS2741N+
Description:
Current Monitor and Accumulator with Integrated Sense Resistor; ; Temperature Range: -40°C to +85°C
Manufacturer:
Maxim Integrated Products
MAX13450EAUD+T
Part Number:
MAX13450EAUD+T
Description:
TSSOP 14/A°/RS-485 Transceivers with Integrated 100O/120O Termination Resis
Manufacturer:
Maxim Integrated Products
MAX13451EAUD+T
Part Number:
MAX13451EAUD+T
Description:
TSSOP 14/A°/RS-485 Transceivers with Integrated 100O/120O Termination Resis
Manufacturer:
Maxim Integrated Products
MAX17497BATE+
Part Number:
MAX17497BATE+
Description:
QFN 16/A°/AC-DC and DC-DC Peak-Current-Mode Converters with Integrated Step
Manufacturer:
Maxim Integrated Products
MAX17502FATB+T
Part Number:
MAX17502FATB+T
Description:
TDFN/A/65V, 1A, 600KHZ, SYNCHRONOUS STEP-DOWN REGULATOR WITH INTEGRATED SWI
Manufacturer:
Maxim Integrated Products
MAX1978EVKIT
Part Number:
MAX1978EVKIT
Description:
Integrated Temperature Controller f
Manufacturer:
Maxim Integrated Products
MAX2606EUT+
Part Number:
MAX2606EUT+
Description:
SOT23-6/I°/45MHz to 650MHz, Integrated IF VCOs with Differential Output
Manufacturer:
Maxim Integrated Products
MAX2608EUT+
Part Number:
MAX2608EUT+
Description:
SOT23-6/I°/45MHz to 650MHz, Integrated IF VCOs with Differential Output
Manufacturer:
Maxim Integrated Products
MAX2831EVKIT+
Part Number:
MAX2831EVKIT+
Description:
EVALUATION KIT/2.4GHZ TO 2.5GHZ 802.11G/B RF TRANSCEIVER WITH INTEGRATED PA
Manufacturer:
Maxim Integrated Products

MAX3268CUB+ Summary of contents

Page 1

... V CC MAX3266 MAX3267 Typical Operating Circuits continued 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. +3.0V to +5.5V, 1.25Gbps/2.5Gbps ♦ +3.0V to +5.5V Supply Voltage ♦ Low Deterministic Jitter ...

Page 2

Limiting Amplifiers ABSOLUTE MAXIMUM RATINGS Supply Voltage (V ) ............................................-0.5V to +6.0V CC Voltage at IN+, IN- ..........................(V CC Voltage at SQUELCH, CAZ1, LOS, TH..................................-0. CAZ2, LOS, Voltage at LEVEL...................................................-0.5V to +2.0V Current into ...

Page 3

ELECTRICAL CHARACTERISTICS (continued) (Data outputs terminated per Figure 1, V unless otherwise noted.) (Note 1) PARAMETER Medium LOS Assert Level R TH Medium LOS Deassert Level R TH High LOS Assert Level R TH High LOS Deassert Level R TH ...

Page 4

Limiting Amplifiers ELECTRICAL CHARACTERISTICS—MAX3265EUE (Data outputs terminated per Figure 1, V unless otherwise noted.) (Note 1) PARAMETER Data Rate Input Voltage Range Deterministic Jitter (Notes 2, 3) Random Jitter (Notes 2, 4) Data Output Edge Speed ...

Page 5

A OUTPUT VOLTAGE vs. INPUT VOLTAGE 1700 1500 MAX3264/MAX3268 1300 1100 MAX3265/MAX3269/MAX3765 900 700 500 300 INPUT VOLTAGE (mV) MAX3264/MAX3268/MAX3768 DETERMINISTIC JITTER vs. INPUT AMPLITUDE ...

Page 6

Limiting Amplifiers (T = +25°C, unless otherwise noted.) A MAX3264 DATA OUTPUT EYE DIAGRAM AT 1.25Gbps (MINIMUM INPUT) 150mV/div 200ps/div MAX3265/MAX3765 DATA OUTPUT EYE DIAGRAM 2.5Gbps (MAXIMUM INPUT) 150mV/div 100ps/div MAX3264 LOSS-OF-SIGNAL THRESHOLD vs ...

Page 7

PIN NAME µMAX TSSOP GND LOS 11 OUT OUT+ — 1 CAZ1 ...

Page 8

Limiting Amplifiers 100Ω 100Ω 100Ω MAX3264 MAX3265 MAX3765 (a) MAX3264/MAX3265/MAX3765 WITH 50Ω TERMINATION MAX3268 MAX3269 MAX3768 (c) MAX3268/MAX3269/MAX3768 OUTPUT TERMINATION Figure 1. Data Output Termination 8 _______________________________________________________________________________________ R TERM 100Ω 100Ω C ...

Page 9

MAX3264 MAX3265 MAX3765 (a) CML SUPPLY CURRENT (I (b) PECL SUPPLY CURRENT (I Figure 2. Power-Supply Current Measurement _______________________________________________________________________________________ +3.0V to +5.5V, 1.25Gbps/2.5Gbps 100Ω 100Ω CONTROL R TH 2.5kΩ OUT+ ...

Page 10

Limiting Amplifiers _______________Detailed Description Figure functional diagram of the MAX3264/ MAX3265/MAX3268/MAX3269/MAX3765/MAX3768 lim- iting amplifiers. A linear input buffer drives a multistage limiting amplifier and an RMS power-detection circuit. Offset correction with lowpass filtering ...

Page 11

The input buffer is designed to accept input signals from the MAX3266/MAX3267 transimpedance ampli- fiers. The input buffer provides a 100Ω input imped- ance between IN+ and IN-. Input VSWR is typically less than 2.0 for frequencies less than 2GHz. ...

Page 12

Limiting Amplifiers V CC GND Figure 6. PECL Output Circuit The buffer’s output impedance is determined by the par- allel combination of internal and external pullup resistors, which are chosen to match the impedance of the ...

Page 13

Applications Information Optical Hysteresis In an optical receiver, the electrical power change at the limiting amplifier is 2x the optical power change example receiver’s optical input power (x) increases by a factor of two, and the ...

Page 14

... Limiting Amplifiers V CC MAX3266 MAX3267 Ordering Information (continued) PART TEMP RANGE MAX3268CUB 0°C to +70°C MAX3268CUB+ 0°C to +70°C MAX3268C/D 0°C to +70°C MAX3269CUB 0°C to +70°C MAX3269CUB+ 0°C to +70°C MAX3269C/D 0°C to +70°C MAX3765CUB 0°C to +70°C MAX3765CUB+ 0° ...

Page 15

PART OUTPUT MAX3264 CML MAX3265 CML MAX3268 PECL MAX3269 PECL MAX3765 CML MAX3768 PECL *LEVEL pin grounded MAX3264/MAX3265/MAX3765 N.C. CAZ1 CAZ2 GND IN+ IN- GND LEVEL LOS TH N.C. 0.061" (1.55mm) MAX3264/MAX3265/MAX3765 TRANSISTOR COUNT: 726 MAX3268/MAX3269/MAX3768 TRANSISTOR COUNT: 728 SUBSTRATE ...

Page 16

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 Ø 0.50±0.1 0.6±0.1 1 0.6±0.1 TOP VIEW D2 A2 ...

Page 17

... 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. 17 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2006 Maxim Integrated Products +3.0V to +5.5V, 1.25Gbps/2.5Gbps ...

Related keywords