LMH6582YA National Semiconductor, LMH6582YA Datasheet

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LMH6582YA

Manufacturer Part Number
LMH6582YA
Description
Manufacturer
National Semiconductor
Datasheet

Specifications of LMH6582YA

Array Configuration
16x8
Number Of Arrays
1
Screening Level
Industrial
Pin Count
64
Package Type
TQFP EP
Power Supply Requirement
Dual
Lead Free Status / RoHS Status
Not Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LMH6582YA/NOPB
Manufacturer:
Texas Instruments
Quantity:
10 000
© 2007 National Semiconductor Corporation
LMH6582
16x8 550 MHz Analog Crosspoint Switch, Gain of 1
General Description
The LMH
speed, non-blocking, analog, crosspoint switch. The
LMH6582 is designed for high speed, DC coupled, analog
signals like high resolution video (UXGA and higher). The
LMH6582 has 16 inputs and 8 outputs. The non-blocking ar-
chitecture allows an output to be connected to any input,
including an input that is already selected. With fully buffered
inputs the LMH6582 can be impedance matched to nearly any
source impedance. The buffered outputs of the LMH6582 can
drive up to two back terminated video loads (75Ω load). The
outputs and inputs also feature high impedance inactive
states allowing high performance input and output expansion
for array sizes such as 16 x 16 or 32 x 8 by combining two
devices. The LMH6582 is controlled with a 4 pin serial inter-
face. Both single serial mode and addressed chain modes are
available.
The LMH6582 comes in a 64-pin thermally enhanced TQFP
package. It also has diagonally symmetrical pin assignments
to facilitate double sided board layouts and easy pin connec-
tions for expansion. The package has an exposed thermal
pad on the bottom of the package.
Connection Diagram
LMH
TRI-STATE
®
is a registered trademark of National Semiconductor Corporation.
®
is a registered trademark of National Semiconductor Corporation.
®
family of products is joined by the LMH6582, a high
202144
20214402
Features
Applications
Block Diagram
16 inputs and 8 outputs
64-pin exposed pad TQFP package
−3 dB bandwidth (V
−3 dB bandwidth (V
Fast slew rate
Low crosstalk (10 MHz/ 100 MHz)
Easy to use serial programming
Two programming modes
Symmetrical pinout facilitates expansion.
Output current
Two gain options
Studio monitoring/production video systems
Conference room multimedia video systems
KVM (keyboard video mouse) systems
Security/surveillance systems
Multi antenna diversity radio
Video test equipment
Medical imaging
Wide-band routers & switches
OUT
OUT
= 0.5 V
= 2V
PP
Serial & addressed modes
)
PP
)
A
V
www.national.com
−70/ −50 dBc
= 1 or A
August 2007
4 wire bus
2000 V/μs
500 MHz
400 MHz
±60 mA
20214411
V
= 2

Related parts for LMH6582YA

LMH6582YA Summary of contents

Page 1

... The package has an exposed thermal pad on the bottom of the package. Connection Diagram LMH ® registered trademark of National Semiconductor Corporation. TRI-STATE ® registered trademark of National Semiconductor Corporation. © 2007 National Semiconductor Corporation Features ■ ...

Page 2

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. ESD Tolerance(Note 2) Human Body Model Machine Model (Input Pins OUT Input Voltage Range Maximum Junction Temperature ±3.3V Electrical Characteristics Unless otherwise specified, typical conditions are T temperature extremes ...

Page 3

Symbol Parameter Miscellaneous Performance R Input Resistance IN C Input Capacitance IN R Output Resistance Enabled O Output Resistance Disabled CMVR Input Common Mode Voltage Range I Output Current O Digital Control V Input Voltage High IH V Input Voltage ...

Page 4

... O Input Voltage High Input Voltage Low Output Voltage High Output Voltage Low Setup Time Hold Time , θ . The maximum allowable power dissipation at any ambient temperature is J(MAX) JA Package Marking LMH6582YA 4 Min Typ Max Units (Note 8) (Note 7) (Note 8) 38 µV/°C −5 −12 µ ...

Page 5

V Bandwidth PP 20214436 Small Signal Bandwidth 20214433 Frequency Response 1 kΩ Load 20214426 1 V Bandwidth PP Small Signal Bandwidth Group Delay 5 20214435 20214434 20214424 www.national.com ...

Page 6

Input Expansion Frequency Response Group Delay DC Transfer Function www.national.com Input Expansion Frequency Response 20214431 DC Transfer Function 20214425 20214416 6 20214432 20214415 Pulse Response 20214417 ...

Page 7

V Pulse Response PP 20214418 1 V Pulse Response PP 20214420 All Hostile 20214422 2 V Pulse Response Pulse Response PP Off Isolation 7 20214419 20214421 20214423 www.national.com ...

Page 8

HD3 vs. Frequency HD2 vs. Frequency Enabled Output Impedance www.national.com HD2 vs. Frequency 20214427 HD3 vs. Frequency 20214429 Disabled Output Impedance 20214413 8 20214428 20214430 20214414 ...

Page 9

... Application Section INTRODUCTION The LMH6582 is a high speed, fully buffered, non blocking, analog crosspoint switch. Having fully buffered inputs allows the LMH6582 to accept signals from low or high impedance sources without the worry of loading the signal source. The fully buffered outputs will drive 75Ω or 50Ω back terminated transmission lines with no external components other than the termination resistor ...

Page 10

FIGURE 3. Input Expansion with Separate Termination Resistors FIGURE 4. Input Expansion Frequency Response with Direct Connection and Isolation Resistors www.national.com FIGURE 5. Input Expansion Frequency Response DRIVING CAPACITIVE LOADS Capacitive output loading applications will benefit from the use of ...

Page 11

FIGURE 6. Buffered Output In this example improve settling time by isolating OUT the LMH6703 input capacitance from the crosspoint output. The resistor R is optional. It may improve performance by L providing a small DC load ...

Page 12

Serial Mode Data Frame (First 2 Words) Output 0 Input Address LSB Off = TRI-STATE ® , Bit 0 is first bit clocked into device. Serial Mode Data Frame (Continued) Output 2 Input Address LSB 10 11 ...

Page 13

Serial programming mode is the mode selected by bringing the MODE pin low. In this mode a stream of 40 bits programs all 8 outputs of the crosspoint. The data is fed to the chip as shown in the table ...

Page 14

THERMAL MANAGEMENT The LMH6582 is packaged in a thermally enhanced Quad Flat Pack package. Even so high performance device that produces a significant amount of heat. With a ±5V supply, the LMH6582 will dissipate approximately 1.1W of ...

Page 15

Physical Dimensions inches (millimeters) unless otherwise noted 64-Pin Exposed Pad QFP NS Package Number VXE64A 15 www.national.com ...

Page 16

... National Semiconductor and the National Semiconductor logo are registered trademarks of National Semiconductor Corporation. All other brand or product names may be trademarks or registered trademarks of their respective holders. ...

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