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PDF LMH6582 Data sheet ( Hoja de datos )
| Número de pieza | LMH6582 | |
| Descripción | (LMH6582 / LMH6583) Analog Crosspoint Switch | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LMH6582 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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PRELIMINARY
April 2006
LMH6582/LMH6583
16x8 500 MHz Analog Crosspoint Switch, Gain of 1/
Gain of 2
General Description
The LMH™ family of products is joined by the LMH6582/
LMH6583, a high speed, non-blocking, analog, crosspoint
switch. The LMH6582 has a gain of 1 while the LMH6583
has a gain of two. The LMH6582/ LMH6583 is designed for
high speed, DC coupled, analog signals like high resolution
video (UXGA and higher). The LMH6582/ LMH6583 has 16
inputs and 8 outputs. The non-blocking architecture allows
an output to be connected to any input, including an input
that is already selected. With fully buffered inputs the
LMH6582/ LMH6583 can be impedance matched to nearly
any source impedance. The buffered outputs of the
LMH6582/ LMH6583 can drive up to two back terminated
video loads (75 Ohm load). The outputs and inputs also
feature high impedance inactive states allowing high perfor-
mance input and output expansion for array sizes such as 16
x 16 or 32 x 8 by combining two devices. The LMH6582/
LMH6583 is controlled with a 4 pin serial interface. Both
single serial mode and addressed chain modes are avail-
able.
The LMH6582/ LMH6583 comes in a 64–pin thermally en-
hanced TQFP package. It also has diagonally symmetrical
pin assignments to facilitate double sided board layouts and
easy pin connections for expansion. The package has an
exposed thermal pad on the bottom of the package.
Features
n 16 inputs and 8 outputs
n 64-pin exposed pad TQFP package
n −3 dB bandwidth (VOUT = 0.5VPP)
n −3 dB bandwidth (VOUT = 2VPP)
500 MHz
400 MHZ
n Fast slew rate
3000 V/µs
n Low crosstalk (10 MHz / 100 MHz)
−70 / −50 dBc
n Easy to use serial programming
4 wire bus
n Two programming modes Serial & addressed modes
n Symmetrical pinout facilitates expansion.
n Output current
±60 mA
n Two gain options
AV = 1 or AV = 2
Applications
n Studio monitoring/production video systems
n Conference room mulitmedia video systems
n KVM (keyboard video mouse) systems
n Security/surveillance systems
n Multi antenna diversity radio
n Video test equipment
n Medical imaging
n Wide-band routers & switches
Connection Diagram
Block Diagram
20150402
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
LMH™ is a trademark of National Semiconductor Corporation.
© 2006 National Semiconductor Corporation DS201504
20150411
www.national.com
1 page  
Application Section (Continued)
chip operation until the Configure pin is pulsed high. The
configure and mode pins are independent of the chip select
pin.
Timing Diagram for Serial Mode
Serial Mode Data Frame (First 2 Words)
Output 0
Output 1
Input Address
On=0 Input Address
LSB MSB Off=1 LSB
01 2 3 4 5 6 7
Off = TRI-STATE®, Bit 0 is first bit clocked into device.
MSB
8
On=0
Off=1
9
Serial Mode Data Frame (Continued)
Output 2
Input Address
LSB
10 11 12
MSB
13
On=0
Off=1
14
Output 3
Input Address
LSB
15 16 17
MSB
18
On=0
Off=1
19
Serial Mode Data Frame (Continued)
Output 4
Input Address
LSB
20 21 22
MSB
23
On=0
Off=1
24
Output 5
Input Address
LSB
25 26 27
MSB
28
On=0
Off=1
29
Serial Mode Data Frame (Last 2 Words)
Output 6
Input Address
LSB MSB
30 31 32 33
Bit 39 is last bit clocked into device.
On=0
Off=1
34
Output 7
Input Address
LSB
35 36 37
MSB
38
On=0
Off=1
39
5
20150409
www.national.com
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet LMH6582.PDF ] | |
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