AS115 austriamicrosystems, AS115 Datasheet

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AS115

Manufacturer Part Number
AS115
Description
Quad Lvds Receivers
Manufacturer
austriamicrosystems
Datasheet

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A S 11 5 0
Q u a d LV D S R e c e i v e r s
1 General Description
The AS1150 and AS1151 are quad flow-through LVDS
(low-voltage differential signaling) receivers which
accept LVDS differential inputs and convert them to
LVCMOS outputs. The receivers are perfect for low-
power low-noise applications requiring high signaling
rates and reduced EMI emissions.
The devices are guaranteed to receive data at speeds
up to 500Mbps (250MHz) over controlled impedance
media of approximately 100Ω. Supported transmission
media are PCB traces, backplanes, and cables.
The AS1150 uses high impedance inputs and requires
an external termination resistor when used in a point-to-
point connection. The AS1151 features integrated paral-
lel termination resistors (nominally 107Ω), which elimi-
nate the requirement for discrete termination resistors,
and reduce stub lengths.
The integrated failsafe feature sets the output high if the
inputs are open, undriven and terminated, or undriven
and shorted. Enable inputs (EN and ENn – internally
pulled down to GND) control the high-impedance output
and are common to all four receivers. All inputs conform
to the ANSI TIA/EIA- 644 LVDS standards. Flow-through
pinout simplifies PC board layout and reduces crosstalk
by separating the LVDS inputs and LVCMOS outputs.
The devices are available in a 16-pin TSSOP package.
Figure 1. Block Diagrams
www.austriamicrosystems.com
,
A S 11 5 1
IN1+
IN2+
IN3+
IN4+
ENn
IN1-
IN2-
IN3-
IN4-
EN
AS1150
V
CC
Rx
Rx
Rx
Rx
OUT1
OUT2
OUT3
OUT4
Revision 1.19
2 Key Features
3 Applications
The devices are ideal for digital copiers, laser printers,
cellular phone base stations, add/drop muxes, digital
cross-connects, dslams, network switches/routers,
backplane interconnect, clock distribution computers,
intelligent instruments, controllers, critical microproces-
sors and microcontrollers, power monitoring, and porta-
ble/battery-powered equipment.
!
!
!
!
!
!
!
!
!
Flow-Through Pinout
Guaranteed 500Mbps Data Rate
300ps Pulse Skew (Max)
Conform to ANSI TIA/EIA-644 LVDS Standards
Single +3.3V Supply
Operating Temperature Range: -40 to +85ºC
Failsafe Circuit
Integrated Termination (AS1151)
16-pin TSSOP Package
IN1+
IN2+
IN3+
IN4+
ENn
IN1-
IN2-
IN3-
IN4-
EN
107Ω
107Ω
107Ω
107Ω
AS1151
V
CC
Rx
Rx
Rx
Rx
OUT1
OUT2
OUT3
OUT4
D a t a S h e e t
1 - 15

Related parts for AS115

AS115 Summary of contents

Page 1

... Supported transmission media are PCB traces, backplanes, and cables. The AS1150 uses high impedance inputs and requires an external termination resistor when used in a point-to- point connection. The AS1151 features integrated paral- lel termination resistors (nominally 107Ω ...

Page 2

... EN and ENn, the outputs are disabled and in high impedance. www.austriamicrosystems.com IN1 IN1 OUT1 IN2 OUT2 IN2 AS1150 AS1151 IN3 GND IN3 OUT3 IN4 OUT4 IN4 ENn Description to GND with 0.1µF and 0.001µF ceramic CC Revision 1 ...

Page 3

... AS1150/AS1151 Data Sheet - Absolute Maximum Ratings Stresses beyond those listed in Table 2 and functional operation of the device at these or any other conditions beyond those indicated in Characteristics on page 4 is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability ...

Page 4

... ID 0.1V ≤ ≤ 0.6V 0.6V ≤ ≤ 1.0V 3. Figure 16 on page 3. Figure 16 on page 9 CC AS1151: Input = 0 AS1151 3. Figure page 9 Open, undriven short, or undriven 100Ω parallel I = -4.0mA OH termination ( AS1150 ) V = +100mV ID Open or Undriven Short I = -4.0mA ...

Page 5

... AS1150/AS1151 Data Sheet - Electrical Characteristics V = +3.0 to +3.6V 15pF, Differential Input Voltage |V CC LOAD to 2.4V -|V /2|, Input Rise and Fall Time = 1ns (20 to 80%), Input Frequency = 100MHz values are +3.3V 1.2V Table 4 ...

Page 6

... AS1150/AS1151 Data Sheet - Typical Operating Characteristics V = +3.3V +1.2V 0.2V Figure 3. Supply Current vs. Frequency 100 90 80 All Channels Switching One Channel Switching 0 0,01 0 Frequency (MHz) Figure 5 ...

Page 7

... AS1150/AS1151 Data Sheet - Figure 9. Differential Propagation Delay vs. V Temperature 2,2 2,16 2,12 t PHLD 2,08 t PLHD 2, 3,1 3,2 3,3 3,4 Supply Voltage (V) Figure 11. Differential Propagation Delay vs. V 2,5 2,4 2,3 2,2 t PHLD 2,1 t PLHD 2 1,9 -0,5 0 0,5 1 1,5 Common-Mode Voltage (V) Figure 13. Differential Pulse Skew vs. V ...

Page 8

... AS1150/AS1151 Data Sheet - Figure 15. Transition Time vs. Temperature 500 450 400 t TLH 350 t THL 300 250 -45 - Tem perature (°C) www.austriamicrosystems.com 75 95 Revision 1. ...

Page 9

... Open or undriven terminated input conditions can occur if there is a cable failure or when the LVDS driver outputs are high impedance. A short condition also can occur because of a cable failure. The failsafe circuit of the AS1150/AS1151 automatically sets the output high if any of these conditions are true. ...

Page 10

... CC device as possible, with the smaller valued capacitor closest to pin V Differential Traces Input trace characteristics can adversely affect the performance of the AS1150 and AS1151. Use controlled-impedance PC board traces to match the cable characteristic impedance. The termination resistor ! must also be matched to this characteristic impedance. ...

Page 11

... Termination Due to the high data rates of LVDS drivers, matched termination will prevent the generation of any signal reflections, and reduce EMI. ! The AS1151 has integrated termination resistors connected across the inputs of each receiver. The value of the integrated resistor is specified in Table 3 on page ! The AS1150 requires an external termination resistor ...

Page 12

... AS1150/AS1151 Data Sheet - Figure 19. Propagation Delay and Transition Time Waveforms INx- V INx Note IN- IN OUTx Figure 20. High Impedance Delay Test Circuit Generator C includes load and test JIG capacitance. ...

Page 13

... AS1150/AS1151 Data Sheet - Package Drawings and Markings Figure 22. 16-Pin TSSOP Package 0.65mm Lead Pitch Symbol Min Nom 0. 0.85 0.90 L 0.50 0. 0.19 0. 4.90 5.00 E1 4.30 4.40 E 6.4 BSC Notes: 1. All dimensions are in millimeters; angles in degrees. ...

Page 14

... Model AS1150 Quad low-voltage differential signaling receiver AS1150-T Quad low-voltage differential signaling receiver Quad low-voltage differential signaling receiver with AS1151 integrated termination Quad low-voltage differential signaling receiver with AS1151-T integrated termination www.austriamicrosystems.com Description Revision 1.19 Package Type Delivery Form 16-pin TSSOP Tubes ...

Page 15

... AS1150/AS1151 Data Sheet Copyrights Copyright © 1997-2007, austriamicrosystems AG, Schloss Premstaetten, 8141 Unterpremstaetten, Austria-Europe. Trademarks Registered ®. All rights reserved. The material herein may not be reproduced, adapted, merged, trans- lated, stored, or used without the prior written consent of the copyright owner. All products and companies mentioned are trademarks or registered trademarks of their respective companies. ...

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