MCP6SX2DM-PCTLPD Microchip Technology, MCP6SX2DM-PCTLPD Datasheet - Page 30

• Manufacturer Part Number: MCP6SX2DM-PCTLPD
• Description: BOARD DAUGHTER PICTAIL MCP6SX2
• Manufacturer: Microchip Technology
• Series: PICtail™r

Specifications of MCP6SX2DM-PCTLPD

• Sensor Type: Light, Current Output
• Interface: Analog
• Sensitivity: 850nm
• Voltage - Supply: 2.5 V ~ 5.5 V
• Embedded: No
• Utilized Ic / Part: MCP6001, MCP6S22, MCP6S92
• Processor To Be Evaluated: MCP6Sx2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Sensing Range: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: MCP6SX2DM-PCTLPDR; MCP6SX2DM-PCTLPDR

Signal Analysis PICtail™ Daughter Board User’s Guide
3.5
DS51476A-page 26
LESSON 3 – PULSE WIDTH MODULATED GENERATED SINE WAVE
A sine wave can be generated from a low-pass filtered Pulse Width Modulated (PWM)
signal. The duty cycle of the PWM signal is set to the magnitude of a sine wave at a
prescribed sample rate. The sample rate sets the frequency of the sine wave.
Figure 3-7 is an oscilloscope screen capture of the PWM signal. Persistence has been
set on to capture the varying duty cycle. Figure 3-8 is the resulting sine wave after the
PWM signal in Figure 3-7 has been low-pass filtered.
Source code and hex files are available on the CD-ROM.
FIGURE 3-7:
FIGURE 3-8:
MODULATED PWM SIGNAL (BEFORE FILTERING)
SINE WAVE (AFTER PWM FILTERING)
 2004 Microchip Technology Inc.