Datasheet

MCP3909
DS22025C-page 2  2006-2012 Microchip Technology Inc.
Functional Block Diagram
16-bit
 ADC
+
–
CH0+
CH0-
Reference
2.4V
+
–
CH1+
CH1-
HPF1
LPF1
DTF
conversion
REFIN/OUT
F
OUT1
HF
OUT
G0 G1
F2/SCK F1/SDI
F
OUT0
OSC1 OSC2
NEG/SDO
HPF
F0/CS
Multi-level
16-bit
 ADC
Multi-level
X
PGA
Serial Control
Buffers
And Output
Stepper Motor
Output Drive
Active Power
SPI
Interface
Dual Functionality Pin
Control
20
16
16
16
16
MCLR
Sub-system
Clock
for
Active Power
HPF1
4k