Electronic Components Datasheet Search
Selected language     English  ▼
Part Name

MT8804A Datasheet(PDF) 3 Page - Mitel Networks Corporation

Part No. MT8804A
Description  CMOS 8 x 4 Analog Switch Array
Download  6 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  MITEL [Mitel Networks Corporation]
Homepage  http://www.mitel.com

 3 page
background image
Functional Description
The MT8804A is a CMOS/LSI 8 X 4 Analog Switch
Array incorporating an 8 X 4 analog switch array,
address decoder, control memory, and digital logic
level converter.
The analog switch array is arranged in 8 rows and 4
columns. The row input/outputs are referred to as
Lines (L0-L7) and the column input/outputs as
Junctors (J0-J3). The crosspoint analog switches
interconnect the lines and junctors when turned “ON”
and provide a high degree of isolation when turned
“OFF”. Interchannel crosstalk is minimal despite the
high density of the analog switch array. The control
memory of the MT8804A can be treated as an 8
word by 4 bit random access memory. The 8 words
are selected by the ADDRESS (A0-A2) inputs
through the on chip address decoder. Data is
presented to the memory via the four DATA inputs
(D0-D3). This data is asynchronously written into the
control memory whenever the ADDRESS ENABLE
(AE) input is HIGH. A HIGH level written into a
memory cell turns the corresponding crosspoint
switch “ON” while a LOW level causes the crosspoint
to turn “OFF”.
Only the crosspoint switches corresponding to the
addressed memory word are affected when data is
written into the memory. The remaining switches
appropriate patterns in the control memory, any
interconnected. A HIGH level on the MASTER
RESET (MR) input returns all memory locations to a
LOW level and turns all crosspoint switches “OFF”
effectively isolating the lines from the junctors. The
digital logic level converters allow the digital input
levels to differ from limits of the analog levels
switched through the array. For example, with
Figure 3 - On Resistance vs. Temperature
(Input Signal Voltage=Supply Voltage/2)
VDD=5V, VSS=0V and VEE=-6V, the control inputs
can be driven by a 5V system while the analog
voltages through the crosspoint switches can swing
from +5V to -6V.
Figure 4 - On Resistance vs. Input Signal Voltage
Figure 5 - 8 x 8 Analog/Digital Switch
8x8 Analog/Digital Switch
Two MT8804s configured as shown, implement
an 8 x 8 analog/digital switch. The switch capacity
can be expanded to an M x N array of inputs/
outputs. Expansion in the M dimension is as
commoned. Expansion in the N dimension is
accomplished by replicating the circuit shown and
connecting the MT8804A junctors (J0-J3) in
common. The address and data control inputs of
the MT8804A’s can be connected in common for
any size and switch provided that the address
enable (AE) inputs are driven individually. A
particular signal path is connected by setting up
the appropriate signals or the address and data
lines and
the corresponding
enable input high. The master reset (MR), when
taken high, disconnects all signal paths.

Html Pages

1  2  3  4  5  6 

Datasheet Download

Related Electronics Part Number

Part NumberComponents DescriptionHtml ViewManufacturer
ADG2108I2C CMOS 8 × 10 Unbuffered Analog Switch Array with Dual/Single Supplies 1 2 3 4 5 MoreAnalog Devices
CWB2269CMOS/DMOS Wideband Dual SPDT Analog Switch 1 2 3 4 Calogic, LLC
IH5151Dual SPDT CMOS Analog Switch 1 2 3 4 5 MoreIntersil Corporation
MT093ISO-CMOS 8 x 12 Analog Switch Array 1 2 3 4 5 MoreMitel Networks Corporation
DG5043Monolithic General-Purpose CMOS Analog Switch 1 2 3 Vishay Siliconix
MAX333APrecision Quad SPDT CMOS Analog Switch 1 2 3 4 5 MoreMaxim Integrated Products
DG5143Low-Power High-Speed CMOS Analog Switch 1 2 3 Vishay Siliconix
CWB5341Dual Monolithic CMOS/DMOS T Configuration Analog Switch 1 2 3 Calogic, LLC
DG201CMOS Quad SPST Analog Switch 1 2 3 4 5 MoreIntersil Corporation
MT8806ISO-CMOS 8 x 4 Analog Switch Array 1 2 3 4 5 MoreMitel Networks Corporation

Link URL

Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Bookmark   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com

Mirror Sites
English : Alldatasheet.com  , Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp  |   Russian : Alldatasheetru.com
Korean : Alldatasheet.co.kr   |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com  |   Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl