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參數(shù)資料
| 型號： | MT8808 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | ISO-CMOS 8 x 8 Analog Switch Array |
| 中文描述： | 標準- 8 × 8的CMOS模擬開關陣列 |
| 文件頁數(shù)： | 3/6頁 |
| 文件大?。?/td> | 52K |
| 代理商： | MT8808 |
ISO-CMOS
MT8808
3-17
Functional Description
The MT8808 is an analog switch matrix with an array
size of 8 x 8. The switch array is arranged such that
there are 8 columns by 8 rows. The columns are
referred to as the Y inputs/outputs and the rows are
the X inputs/outputs. The crosspoint analog switch
array will interconnect any X I/O with any Y I/O when
turned on and provide a high degree of isolation
when turned off. The control memory consists of a 64
bit write only RAM in which the bits are selected by
the address inputs (AY0-AY2, AX0-AX2). Data is
presented to the memory on the DATA input. Data is
asynchro-nously written into memory whenever the
STROBE input is high and is latched on the falling
edge of STROBE. A logical “1” written into a memory
cell turns the corresponding crosspoint switch on
and a logical “0” turns the crosspoint off. Only the
crosspoint switches corresponding to the addressed
memory location are altered when data is written into
memory. The remaining switches retain their
previous states. Any combination of X and Y inputs/
outputs can be interconnected by establishing
appropriate patterns in the control memory. A
logical “1” on the RESET input will asynchronously
return all memory locations to logical “0” turning off
all crosspoint switches. Two voltage reference pins
(V
SS
and V
EE
) are provided for the MT8808 to
enable switching of negative analog signals. The
range for digital signals is from V
DD
to V
SS
while the
range for analog signals is from V
DD
to V
EE
. V
SS
and V
EE
pins can be tied together if a single voltage
reference is needed.
Address Decode
The six address inputs along with the STROBE are
logically ANDed to form an enable signal for the
resettable transparent latches. The DATA input is
buffered and is used as the input to all latches. To
write to a location, RESET must be low while the
address and data are set up. Then the STROBE
input is set high and then low causing the data to be
latched. The data can be changed while STROBE is
high, however, the corresponding switch will turn on
and off in accordance with the DATA input. DATA
must be stable on the falling edge of STROBE in
order for correct data to be written to the latch.
相關PDF資料 |
PDF描述 |
|---|---|
| MT8808AC | ISO-CMOS 8 x 8 Analog Switch Array |
| MT8808AE | ISO-CMOS 8 x 8 Analog Switch Array |
| MT8808 | 8 x 8 Analog Switch Array(8 x 8模擬開關陣列) |
| MT8809 | ISO-CMOS 8 x 8 Analog Switch Array |
| MT8809AC | ISO-CMOS 8 x 8 Analog Switch Array |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MT8808AC | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:ISO-CMOS 8 x 8 Analog Switch Array |
| MT8808AE | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:ISO-CMOS 8 x 8 Analog Switch Array |
| MT8808AE1 | 制造商:Microsemi Corporation 功能描述:ANLG AUD/VID CROSSPOINT 45MHZ 8 X 8 28PDIP - Rail/Tube 制造商:Zarlink Semiconductor Inc 功能描述:ANLG AUD/VID CROSSPOINT 45MHZ 8 X 8 28PDIP - Rail/Tube |
| MT8808AP | 制造商:Microsemi Corporation 功能描述: |
| MT8808AP1 | 制造商:Microsemi Corporation 功能描述:ANLG AUD/VID CROSSPOINT 45MHZ 8 X 8 28PLCC - Rail/Tube 制造商:Microsemi Corporation 功能描述:PB FREE 8X8 ANALOG CROSSPOINT 制造商:Zarlink Semiconductor Inc 功能描述:ANLG AUD/VID CROSSPOINT 45MHZ 8 X 8 28PLCC - Rail/Tube 制造商:Zarlink Semiconductor Inc 功能描述:PB FREE 8X8 ANALOG CROSSPOINT |
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