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MCP2120 Datasheet(PDF) 23 Page - Microchip Technology

Part # MCP2120
Description  Infrared Encoder/Decoder
PDF  36 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP2120 Datasheet(HTML) 23 Page - Microchip Technology

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© 2007 Microchip Technology Inc.
DS21618B-page 23
MCP2120
FIGURE 4-9:
RXIR and RX Waveforms
TABLE 4-9:
RXIR REQUIREMENTS
AC Characteristics
Standard Operating Conditions (unless otherwise specified)
Operating Temperature
–40
°C ≤ TA ≤ +85°C (industrial)
Operating Voltage VDD range is described in Section 4.1 “DC
Characteristics”
Param.
No.
Sym
Characteristic
Min
Typ
Max
Units
Conditions
IR110
TRXBIT
Receive Baud Rate
Hardware Selection
768
—
768
TOSC
BAUD2:BAUD0 = 000
384
—
384
TOSC
BAUD2:BAUD0 = 001
192
—
192
TOSC
BAUD2:BAUD0 = 010
128
—
128
TOSC
BAUD2:BAUD0 = 011
64
—
64
TOSC
BAUD2:BAUD0 = 100
Software Selection
BAUD2:BAUD0 = 111
768
—
768
TOSC
Hex Command = 0x87
384
—
384
TOSC
Hex Command = 0x8B
192
—
192
TOSC
Hex Command = 0x85
128
—
128
TOSC
Hex Command = 0x83
64
—
64
TOSC
Hex Command = 0x81
IR130 TRXIRL2RXH RXIR falling edge (
↓) to RX
falling edge (
↓) (1)
8TBITCLK
- 8.34 µs
88TBITCLK
+ 8.34 µs
TBITCLK
IR131A
TRXIRPW
RXIR pulse width
3
—
3
TOSC
IR132
TRXIRP
RXIR bit period (1)
—16
—
TBITCLK
Note 1: TBITCLK = TRXBIT/16
BITCLK
RX
RXIR
01
0
0
0
1
IR131A
IR110
IR131B
IR131B
IR131B
IR131B
IR131B
IR131B
IR130
Start Bit
Data bit 7
Data bit 6
Data bit 5
Data bit ...
Start Bit
Data bit 7
Data bit 6
Data bit 5
Data bit ...



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