MCP3909RD-3PH3 Microchip Technology, MCP3909RD-3PH3 Datasheet - Page 29

• Manufacturer Part Number: MCP3909RD-3PH3
• Description: REF DESIGN FOR MCP3909 W/18F2520
• Manufacturer: Microchip Technology

Specifications of MCP3909RD-3PH3

• Main Purpose: Power Management, Energy/Power Meter
• Utilized Ic / Part: MCP3909, PIC18F2520, PIC18F4550
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

5.6
The filter input mode allows the user to feed the
MCP3909 device an input to the LPF1. Data is
received MSB first. The MCP3909 will treat this data
as if it were the output of the multiplier and will LPF
and D-F the result as normal, giving the resulting
output frequency on HF
Tables 4-2
frequencies.
FIGURE 5-6:
© 2009 Microchip Technology Inc.
NEG / SDO
F2 / SCK
F1 / SDI
F0 / CS
Filter Input Mode
and
4-3
for transfer functions of the output
Hi-z
Filter Input Mode.
OUT
DR
, F
OUT0
and F
D19
1
OUT1
D18 D17
2
. See
3
D16
4
X 20
X 20
When using filter input mode, the user must wait for
the data ready flag (DR) to appear on SDO before
attempting to clock in data to the device. The user can
not access either the multiplier output or the dual
channel output while in this mode.
17 18
D3
D2
19 20
D1
D0
MCP3909
Hi-z
DS22025B-page 29