dg884 Vishay, dg884 Datasheet

no-image

dg884

Manufacturer Part Number
dg884
Description
8 X 4 Wideband Video Crosspoint Array
Manufacturer
Vishay
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
dg884AM/883C
Manufacturer:
SC
Quantity:
500
Part Number:
dg884DM
Manufacturer:
a
Quantity:
1
Part Number:
dg884DM
Manufacturer:
DG
Quantity:
20 000
Part Number:
dg884DN
Manufacturer:
SIL
Quantity:
5 510
Part Number:
dg884DN
Manufacturer:
VISHAY/威世
Quantity:
20 000
Part Number:
dg884DN-E3
Manufacturer:
VISHAY
Quantity:
301
DESCRIPTION
The DG884 contains a matrix of 32 T-switches configured in
an 8 x 4 crosspoint array. Any of the IN/OUT pins may be
used as an input or output. Any of the IN pins may be
switched to any or simultaneously to all OUT pins.
The DG884 is built on a proprietary D/CMOS process that
combines low capacitance switching DMOS FETs with low
power CMOS control logic and drivers. The ground lines
between adjacent signal input pins help to reduce crosstalk.
The low on-resistance and low on-capacitance of the DG884
make it ideal for video and wideband signal routing.
Control data is loaded individually into four Next Event
latches. When all Next Event latches have been
programmed, data is transferred into the Current Event
latches via a SALVO command. Current Event latch data
readback is available to poll array status.
Output disable capabilities make it possible to parallel
multiple DG884s to form larger switch arrays. DIS outputs
provide control signals used to place external buffers in a
power saving mode.
For additional information see applications note AN504
(FaxBack document number 70610).
FUNCTIONAL BLOCK DIAGRAM
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 70071
S-71241–Rev. H, 25-Jun-07
WR
CS
B
B
1
0
8 x 4 Wideband Video Crosspoint Array
I/O
A
I/O Control
3
Logic
A
2
A
1
IN
A
0
1
IN
Decode Logic, Switch Drivers
2
8 4 Switch Matrix
IN
3
IN
Current Event Latches
4
Next Event Latches
IN
5
IN
6
FEATURES
BENEFITS
APPLICATIONS
• Routes Any Input to Any Output
• Wide Bandwidth: 300 MHz
• Low Crosstalk: - 85 dB at 5 MHz
• Double Buffered TTL-Compatible
• Low r
• Optional Negative Supply
• Reduced Board Space
• Improved System Bandwidth
• Improved Channel Off-Isolation
• Simplified Logic Interfacing
• Allows Bipolar Signal Swings
• Reduced Insertion Loss
• High Reliability
• Wideband Signal Routing and Multiplexing
• High-End Video Systems
• NTSC, PAL, SECAM Switchers
• Digital Video Routing
• ATE Systems
IN
7
Latches with Readback
IN
8
DS(on)
: 45 Ω
OUT
OUT
OUT
OUT
4 Disable Outputs
RS
SALVO
1
2
3
4
Vishay Siliconix
www.vishay.com
DG884
RoHS*
COMPLIANT
Available
Pb-free
1

Related parts for dg884

dg884 Summary of contents

Page 1

... Wideband Video Crosspoint Array DESCRIPTION The DG884 contains a matrix of 32 T-switches configured crosspoint array. Any of the IN/OUT pins may be used as an input or output. Any of the IN pins may be switched to any or simultaneously to all OUT pins. The DG884 is built on a proprietary D/CMOS process that combines low capacitance switching DMOS FETs with low power CMOS control logic and drivers ...

Page 2

... Current Event latches determine which Current Event latches are being read All crosspoints opened (but data in Next Event latches is preserved) Package Part Number DG884DN 44-Pin PLCC DG884DN-E3 Actions Document Number: 70071 S-71241–Rev. H, 25-Jun-07 ...

Page 3

... When all four DIS outputs pull low simultaneously mA, whichever occurs first or 20 mA, whichever occurs first b c DG884 Vishay Siliconix Next Event Latches IN to OUT Loaded OUT Loaded OUT Loaded 3 ...

Page 4

... DG884 Vishay Siliconix a SPECIFICATIONS Parameter Symbol Analog Switch e V Analog Signal Range ANALOG Drain-Source r DS(on) On-Resistance Resistance Match Δr DS(on) Between Channels I Source Off Leakage Current S(off) I Drain Off Leakage Current D(off) Total Switch On I D(on) Leakage Current Digital Input/Output V Input Voltage High AIH ...

Page 5

... See Operating Voltage Range Full (Typical Characteristics) page 6 Full Full Full Full Full Full Full See Figure 1 Full Room Room Room Room Room Full Room DG884 Vishay Siliconix A Suffix D Suffix - 55 to 125 ° ° Typ Min Max Min Max 1 ...

Page 6

... DG884 Vishay Siliconix TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted 120 100 Frequency (MHz) Adjacent Input Crosstalk 100 – Frequency (MHz) All Hostile Crosstalk www.vishay.com 6 120 100 100 Matrix Disabled Crosstalk ...

Page 7

... Minimum time RS must be valid before SALVO pulse Minimum time I/O must be valid before address output valid Minimum time address B Minimum time CS must be valid until A Minimum time CS must be valid before address applied if I/O is high DG884 Vishay Siliconix Donít Care Donít Care Presetting Device B ...

Page 8

... GND DGND DG884 IN – I/O CS SALVO GND DGND DG884 – I/O CS SALVO 0 1 www.vishay.com OUT kΩ ...

Page 9

... TALK(AI Figure 9. Adjacent Input Crosstalk DGND DG884 I Figure 11. On-State and Off-State Capacitances www.vishay.com DG884 V O Ω kΩ "0" = Off-State "1" = On-State 9 ...

Page 10

... The DG884 is the world’s first monolithic wideband crosspoint array that operates from dc to > 100 MHz. The DG884 offers the ability to route any one of eight input signals to any one of four OUT pins. Any input can be routed to one, two, three or four OUTs simultaneously with no risk of shorting inputs together (guaranteed by design). Each crosspoint is configured as a “ ...

Page 11

... DIS 1 x2 DIS 2 DG884 x2 DIS 3 x2 DIS RESET Figure 13. Fully Buffered Crosspoint DG884 Vishay Siliconix 8 Analog Inputs OUT 1 Mux 1 8 OUT 2 Mux 2 8 OUT T-Switches / 1 Series Switch 8 OUT 4 Mux 4 Ω 75 OUT 1 OUT 2 ...

Page 12

... V Figure 14. DG884 Power Supply Decoupling Power Supplies and Decoupling A useful feature of the DG884 is its power supply flexibility. It can be operated from dual supplies single positive supply (V- connected required. Allowable operating voltage ranges are shown in Operating Voltage Range (Typical Characteristics) graph, page 6. ...

Page 13

... L capacitors (low ESR, low ESL), use striplines to maintain transmission line impedance matching. Figure 16 Expandable Crosspoint Matrix Using DG884 DG884 Vishay Siliconix Video Out Bus Video ...

Page 14

... Information contained herein is intended to provide a product description only. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right ...

Related keywords