MCP2122-E/SN Microchip Technology, MCP2122-E/SN Datasheet - Page 24

• Manufacturer Part Number: MCP2122-E/SN
• Description: IC ENCODER/DECODER IRDA 8SOIC
• Manufacturer: Microchip Technology
• Type: Infrared Encoder/Decoderr

Specifications of MCP2122-E/SN

• Package / Case: 8-SOIC (3.9mm Width)
• Applications: Data-Logging, Data Exchange
• Voltage - Supply, Analog: 1.8 V ~ 5.5 V
• Voltage - Supply, Digital: 1.8 V ~ 5.5 V
• Mounting Type: Surface Mount
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.8 V
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Ic Function: Encoder / Decoder IC
• Supply Voltage Range: 1.8V To 5.5V
• Operating Temperature Range: -40°C To +125°C
• Digital Ic Case Style: SOIC
• No. Of Pins: 8
• Leaded Process Compatible: Yes
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: MCP212XDM - BOARD DEVELOPMENT IRDA
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: MCP2122-E/SNG; MCP2122-E/SNG

MCP2120/22 Developer’s Board User’s Guide
2.3
FIGURE 2-1:
DS51842A-page 20
Note 1:
MCP212XDM DEMOS
Monitor
2:
3:
HyperTerminal
Program Window A
(Com 1)
The PC may be a Notebook with an Integrated IR port.
Serial cable. Connects MCP212XDM to PC.
USB cable (for power only).
HyperTerminal
Program Window B
(Com 2)
A description of the demos, including step-by-step instructions are shown in this
section.
2.3.1
In Demo #1, the MCP2120/22 Developer’s Board #2 will take any data that is received
from the IR interface and send it directly out the UART interface to the PC’s serial port.
Any data that is received from the UART interface will be directly sent out the IR
interface.
This shows the MCP2120/22 encoding and decoding data between the IR port and the
Host UART port. In this configuration the MCP2120/22 Developer’s Board can be used
as a IR to UART dongle.
Figure 2-1 shows the system setup for this test, while Figure 2-2 shows the jumper
configuration for both of the MCP2120/22 Developer’s Boards. Lastly, Table 2-4 shows
the steps for Demo #1 operation.
DEMO #1 SYSTEM BLOCK DIAGRAM
Hyperterminal to Serial Port Settings
The com port settings should be configured as:
• 115200 Baud
• 8-bits
• No Parity
• One Stop
• No Flow Control
(1)
¬
(2)
Demo #1 Operation - Direct IR / UART (DB-9) Mode
PC
(2)
Com 1
(3)
System #1
MCP2120/22 Developer’s
Board
(1)
(1)
© 2009 Microchip Technology Inc.
System #2
MCP2120/22 Developer’s
Board
Com 2
(2)
(3)