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參數(shù)資料
| 型號： | MP7680 |
| 廠商： | Exar Corporation |
| 英文描述： | 5 V CMOS 12-Bit Quad Double-Buffered Multiplying Digital-to-Analog Converter |
| 中文描述： | 5伏的CMOS 12位四路雙緩沖乘法數(shù)字到模擬轉(zhuǎn)換器 |
| 文件頁數(shù)： | 10/12頁 |
| 文件大小： | 307K |
| 代理商： | MP7680 |
MP7680
10
Rev. 3.10
Transferring
Data to the DAC Latches
Onceoneoralloftheinputlatches havebeen loaded,the
condition XFER = WR2= lowtransfers thecontent ofALL
the input latches in the DAC latches. The output of the
DAC latches (DA11-DA0) changes and the DAC current
(I
OUT
)willreachanewstablevaluewithinthesettlingtime
t
S
(
Figure
6.
).
Examples of DACs updating sequences:
1)Simultaneous updates of any number of DACs. The
system uses from one (two) to four (eight) cycles to
write from a 12 (8) bit bus into B1/B2 latches. One
transfer cycle updates the output of all DACs
(
Figure
7.
)
2)Individual DAC update. The condition WR2 = XFER =
low makes the DAC latches transparent. A writing to
theB1/B2latchesupdatestheDACoutputs(
Figure
3)Automatic transfer to DAC latches. An 8-bit bus can
update any DAC with two cycles by connecting WR1 =
WR2 and B1/B2= XFER. This is the correct individual
DAC update for 8-bit busses (
Figure
4)Transferbyaseconddevice. Aprocessormayloadthe
input latches while the final XFER pulse is left to an-
other device.
8.
).
9.
).
DATA
CS
WR1
Figure
7. Simultaneous
Updates
of DACs
XFER=WR2
= 0
= 1
= 2
= 3
Valid
Valid
Valid
Valid
A
0,
A
1
I
OUT1A, B, C, D
CS
DATA
WR1
WR2 = XFER
= 1
= 3
Figure
8.
Individual
DAC Update
Valid
Valid
A
1
, A
0
I
OUT1B
I
OUT1D
CS
WR1 and WR2
Figure
9.
Automatic
Transfer
to DAC Latches
= 1
= 2
B1/B2 and XFER
A
1
, A
0
I
OUTB
I
OUTC
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MP7680JE | 5 V CMOS 12-Bit Quad Double-Buffered Multiplying Digital-to-Analog Converter |
| MP7680JN | 5 V CMOS 12-Bit Quad Double-Buffered Multiplying Digital-to-Analog Converter |
| MP7680KE | 5 V CMOS 12-Bit Quad Double-Buffered Multiplying Digital-to-Analog Converter |
| MP7680KN | 5 V CMOS 12-Bit Quad Double-Buffered Multiplying Digital-to-Analog Converter |
| MP7682SD | CMOS, 6-Bit High-Speed Analog-to-digital Converter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MP7680JE | 制造商:EXAR 制造商全稱:EXAR 功能描述:5 V CMOS 12-Bit Quad Double-Buffered Multiplying Digital-to-Analog Converter |
| MP7680JN | 制造商:EXAR 制造商全稱:EXAR 功能描述:5 V CMOS 12-Bit Quad Double-Buffered Multiplying Digital-to-Analog Converter |
| MP7680KE | 制造商:EXAR 制造商全稱:EXAR 功能描述:5 V CMOS 12-Bit Quad Double-Buffered Multiplying Digital-to-Analog Converter |
| MP7680KN | 制造商:EXAR 制造商全稱:EXAR 功能描述:5 V CMOS 12-Bit Quad Double-Buffered Multiplying Digital-to-Analog Converter |
| MP7682 | 制造商:EXAR 制造商全稱:EXAR 功能描述:CMOS, 6-Bit High-Speed Analog-to-digital Converter |
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