MAX3262CAG Maxim Integrated Products, MAX3262CAG Datasheet

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MAX3262CAG

Manufacturer Part Number
MAX3262CAG
Description
1Gbps, high-speed limiting amplifier with catter-free loss-of-signal detection.
Manufacturer
Maxim Integrated Products
Datasheet

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The MAX3262 limiting amplifier with its high gain and
wide bandwidth is ideal for use as a post amplifier in
fiber-optic receivers with data rates up to 1Gbps. The
amplifier’s gain can be adjusted between 33dB and
48dB. At maximum gain, signals as small as 6mVp-p
can be amplified to drive devices with PECL inputs.
The MAX3262 has complementary loss-of-signal out-
puts for interfacing with open-fiber-control (OFC) cir-
cuitry. These outputs can be programmed to assert
with input levels between 9mVp-p and 48mVp-p. LOS
hysteresis for any programmed level is nominally
3.0dB, preserving a balance between noise immunity
and dynamic range.
________________General Description
________________________Applications
____________________________________________________Typical Operating Circuit
19-0324; Rev 2; 12/97
Pin Configuration appears at end of data sheet.
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.
1062Mbps Fibre Channel
622Mbps SONET
1Gbps, High-Speed Limiting Amplifier with
FILTER
INPUT
V
+5V
CC
________________________________________________________________ Maxim Integrated Products
MAX3260
OUTPUT
GND
Chatter-Free Loss-of-Signal Detection
50
0.01 F
+5V
C
IN
C1
C
IN
+5V
0.01 F
C
AZ
C1
CZN
DIN+
DIN-
ENB
V
CC
CZP
____________________________Features
_______________Ordering Information
*Dice are designed to operate over this range but are tested and
guaranteed only at T
+5V
MAX3262
MAX3262CAG
MAX3262C/D
900MHz Bandwidth
48dB Maximum Gain
Chatter-Free LOS
Programmable LOS Threshold
Single +5V Power Supply
Fully Differential Architecture
PART
GND
R1
R2
DOUT+
DOUT-
LOSB
LOS
A
0°C to +70°C (T
0°C to +100°C (T
= +25°C.
TEMP. RANGE
4.7k
R
RECEIVER WITH
PECL TERMINATIONS
(50 TO V
A
)
J
)
+5V
4.7k
R
CC
- 2V)
PIN-PACKAGE
24 SSOP
Dice*
LOS
LOSB
1

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MAX3262CAG Summary of contents

Page 1

... For small orders, phone 408-737-7600 ext. 3468. ____________________________Features 900MHz Bandwidth 48dB Maximum Gain Chatter-Free LOS Programmable LOS Threshold Single +5V Power Supply Fully Differential Architecture _______________Ordering Information PART MAX3262CAG MAX3262C/D *Dice are designed to operate over this range but are tested and guaranteed only CZP CZN DIN+ C ...

Page 2

... Differential inputs, peak-to-peak MAX3262CAG 5V, Pattern 2 - 1PRBS LOS V = 5V, DIV2 = GND (Note 3) LOS 1Gbps, 8mVp-p input MAX3262C/D MAX3262CAG < 300ps, 8mVp-p. R < 300ps, 1.8Vp- +70° and T = +25°C MIN TYP MAX UNITS 60 mA 150 µA 120 µ ...

Page 3

High-Speed Limiting Amplifier with Chatter-Free Loss-of-Signal Detection __________________________________________Typical Operating Characteristics ( +25°C, unless otherwise noted SUPPLY CURRENT CC (NO OUTPUT LOAD) vs. TEMPERATURE 5.25V 55 50 5.0V 45 4.75V ...

Page 4

High-Speed Limiting Amplifier with Chatter-Free Loss-of-Signal Detection _____________________________________________________ __________Pin Description PIN NAME Positive supply for internal gain stages Power detect/LOS level set. Use this input to program the required threshold level for LOS ...

Page 5

High-Speed Limiting Amplifier with Chatter-Free Loss-of-Signal Detection DIN+ 5dB/11dB DIN- DIV2 Figure 1. Functional Diagram _______________ Detailed Description The MAX3262 is an integrated limiting amplifier intend- ed for high-frequency fiber-optic applications. The cir- cuit connects to typical transimpedance amplifiers ...

Page 6

High-Speed Limiting Amplifier with Chatter-Free Loss-of-Signal Detection LOS ASSERT LEVEL DIV2 OPEN DIV2 GROUNDED 0 3.0 3.3 3.6 3.9 4.2 4.5 V (V) LOS Figure 2. MAX3262 Sensitivity ...

Page 7

High-Speed Limiting Amplifier with Chatter-Free Loss-of-Signal Detection MAX3262 DIN DIN- 1.5k Figure 4. MAX3262 Equivalent Input Circuit DOUT+ MAX3262 DOUT- a) DRIVING A 50 LOAD TO GROUND Figure 5. Output Termination ...

Page 8

... Maxim product could create a situation where personal injury or death may occur. 8 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 1997 Maxim Integrated Products ____________________Chip Topography ...

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