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TC3404VQR(2002) データシートの表示(PDF) - Microchip Technology
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TC3404VQR
(Rev.:2002)
+1.8V Low Power, Quad Input, 16-Bit Sigma-Delta A/D Converter with a Power Fault Monitor
Microchip Technology
TC3404VQR Datasheet PDF : 16 Pages
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FIGURE 3-5:
A/D OPERATIONAL FLOWCHART
POR
Sleep
SDAT = High
No
SCLK
Hgh to Low?
Yes
Power Up Analog,
Start CONVCLK (= 0),
Start Conversion,
Resolution = 2m
(m = 16), Latch Input
Channel Address (if applicable).
SCLK
Low to High
No
transition?
Yes
SDAT = Low
CONVCLK
No
< 2
9
?
Yes
No
SCLK
High to Low?
Yes
No
A/D
Resolution
> 2
10
?
Yes
Reduce A/D
Resolution by 1-bit
(m = m
–
1);
SDAT = High
TC3404
SDAT = Low
CONVCLK = 2m?
No
(Conversion Done?)
Yes
Power Down Analog,
Conversion Complete,
SDAT = High
SCLK
No
High to Low?
Yes
SDAT = Dm;
m=m
–
1
Yes
m
≥
0?
No
SDAT = High
Internal Reset
Sleep
©
2002 Microchip Technology Inc.
DS21413B-page 9
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