參數(shù)資料
型號(hào): MCP2122-E/P
廠(chǎng)商: Microchip Technology
文件頁(yè)數(shù): 19/38頁(yè)
文件大?。?/td> 0K
描述: IC ENCODER/DECODER IRDA 8-DIP
標(biāo)準(zhǔn)包裝: 60
類(lèi)型: 紅外線(xiàn)編碼器/解碼器
應(yīng)用: 數(shù)據(jù)記錄,數(shù)據(jù)交換
電壓 - 電源,模擬: 1.8 V ~ 5.5 V
電壓 - 電源,數(shù)字: 1.8 V ~ 5.5 V
安裝類(lèi)型: 通孔
封裝/外殼: 8-DIP(0.300",7.62mm)
供應(yīng)商設(shè)備封裝: 8-PDIP
包裝: 管件
配用: MCP212XDM-ND - BOARD DEVELOPMENT IRDA
MCP2122
DS21894C-page 26
Preliminary
2007 Microchip Technology Inc.
FIGURE 4-8:
RXIR AND RX WAVEFORMS
TABLE 4-8:
RXIR REQUIREMENTS
AC Characteristics
Standard Operating Conditions (unless otherwise specified)
Operating Temperature: –40
°C ≤ TA ≤ +125°C (Extended)
Operating Voltage VDD range is described in
Param.
No.
Sym
Characteristic
Min
Typ (1)
Max
Units
Conditions
IR101A ERXIRBIT
RXIR Error
± 2
%
IR101B ERXBIT
Host UART RX Error
0
%
IR103 TTXRF
RX pin rise time and fall
time
——
25
ns
IR110 TRXBIT
Receive (RX pin) Bit Rate
16
16
TXCLK
IR130 TRXIRL2RXH RXIR Low AND 16XCLK
edge (
↓ or ↑) to RX falling
edge (
↓)
—4
TXCLK At 115,200 baud
—3
TXCLK At 9600 baud
IR131A TRXIRPW
RXIR pulse width
1.41
3 TXCLK
s
IR132 TRXIRP
RXIR bit period (1)
—16
TXCLK
IR133 TRXIRJ
16XCLK to RXIR jitter
1
TXCLK Note 2
IR134 TRXSKW
16XCLK to RX skew
2.5
s
IR135 TRXPDFIL
RXIR Filter
0.7
1.4
s
Note 1: Data in the Typical (“Typ”) column is at 5V, +25
°C, unless otherwise stated. These parameters are for
design guidance only and are not tested.
2: These parameters (shaded) are characterized but are not tested. These values should be used for design
guidance only.
3: The RXIR pin operation is asynchronous to the 16XCLK pin. This is the error from the desired baud rate for
the system.
4: The RX pin operation is synchronous to the 16XCLK pin. Any error present on the 16XCLK pin
(Parameter 1C) will be refelected on the RX pin.
5: The minimum specification ensures that ALL pulses less then this pulse width are rejected, the maximum
specification ensures that ALL pulses greater than this pulse width are never rejected, and pulse widths
between these may or may not be rejected.
16XCLK
RX
RXIR
01
0
1
IR131A
IR110
IR132
Bit
Bit ...
IR133
IR134
Note: Refer to Figure 4-2 for load conditions.
IR103
IR132
IR130
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