Datasheet

MCP3903
DS25048B-page 8 © 2011 Microchip Technology Inc.
H
FIGURE 1-3: Data Ready Pulse Timing Diagram.
H
FIGURE 1-4: Specific Timing Diagrams.
FIGURE 1-5: MCP3903 Clock Detail.
DR
SCK
SDO
1 / DRCLK
t
DODR
t
DRP
CS
V
IH
Timing Waveform for t
DIS
HI-Z
90%
10%
t
DIS
SDO
SCK
SDO
t
DO
Timing Waveform for t
DO
MDAT0/1
OSC1/CLKI
Timing Waveform for MDAT0/1
Modulator Output
t
DOMDAT
CLKEXT
1
0
PRESCALE<1:0>
1 /
MCLK AMCLK
1 / 4
DMCLK
1 / OSR
DRCLK
OSR<1:0>
Multiplexer Clock Divider Clock Divider Clock Divider
Crystal
Oscillator
OSC1
OSC2
Prescale
f
S
ADC
Sampling
Rate
f
D
ADC
Output
Data Rate
Digital Buffer