ADM00310 Microchip Technology, ADM00310 Datasheet - Page 11

• Manufacturer Part Number: ADM00310
• Description: BOARD EVAL FOR MCP3903 AFE
• Manufacturer: Microchip Technology
• Series: -r

Specifications of ADM00310

• Design Resources: MCP3903 Eval Brd BOM MCP3903 Eval Brd Schematic
• Main Purpose: Interface, Analog Front End (AFE)
• Embedded: Yes, MCU, 16-Bit
• Utilized Ic / Part: MCP3903, PIC24F, PIC24H, dsPIC33, MCP2200
• Primary Attributes: -
• Secondary Attributes: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

1.2
FIGURE 1-2:
© 2011 Microchip Technology Inc.
PIM MODULE / MCP3903 CONNECTION AND PERIPHERAL USAGE
OVERVIEW
PIM Module
SDO1/RF8
RF2/U1RX
SCK1/RF6
RF3/U1TX
IC3/RD10
INT3/RA4
SDI1/RF7
OC1/RD0
IC4/RD11
RB8/9/10
RA9/10
RA5
RA4
The MCP3903 ADC Evaluation Board for 16-Bit MCUs contains a 100-pin PIM socket,
compatible with Microchip’s PIM modules. The system comes with a PIM module: the
PIC24FJ128GA010.
For a complete description of the firmware programmed with these two modules, see
Chapter 1. “Hardware
Digital Connection Overview PIM/MCP3903 Connections.
Ports A, B, and D are used for signals such as push buttons, output LEDs, CS and
MCLR (for MCP3903 data mode setting). Output Capture 1 is used for MCP3903’s
clock generation. Serial communication is achieved through the MSSP module 1.
The MCP3903 device is an ADC with a second order modulator and a third order sync
filter. This Delta-Sigma A/D converter has an adjustable oversampling ratio. The CLKIN
pin of the MCP3903 is the ADC’s clock (MCLK) input. The MCP3903 ADC Evaluation
Board for 16-Bit MCUs offers two different options for the MCP3903 master clock
(MCLK).
RESET
SCK
SDO
DR
CS
SDI
D6 D7
CONTROL SWITCHES (X3)
UART SERIAL TO PC COMMUNICATION
DGND
SPI Serial
Interface
DVdd
Description”.
MCP3903
(Green)
Clock Generation/
Phase Correction
OSC2
Hardware Description
Six Channels
Sigma-Delta
ADC
OSC1
AGND
Vref
INT
AVDD
DS51994A-page 7
CH0+
CH0-
CH1+
CH1-
CH2+
CH2-
CH3+
CH3-
CH4+
CH4-
CH5+
CH5-