参数资料
型号: MCP2122-E/PG
厂商: Microchip Technology
文件页数: 15/34页
文件大小: 0K
描述: IC ENCODER/DECODER INFRARED 8DIP
标准包装: 60
类型: 红外线编码器/解码器
应用: 数据记录,数据交换
电压 - 电源,模拟: 1.8 V ~ 5.5 V
电压 - 电源,数字: 1.8 V ~ 5.5 V
安装类型: 通孔
封装/外壳: 8-DIP(0.300",7.62mm)
供应商设备封装: 8-PDIP
包装: 管件
配用: MCP212XDM-ND - BOARD DEVELOPMENT IRDA
MCP2122
DS21894B-page 22
Preliminary
2004 Microchip Technology Inc.
FIGURE 4-6:
TX AND TXIR WAVEFORMS
TABLE 4-6:
TX AND TXIR 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
IR100A
TTXBIT
Transmit Baud Rate
16
TXCLK
IR100B
TTXIRBIT
Transmit Baud Rate
16
16
TXCLK
IR102A
ETXBIT
Host UART TX Error
± 2
%
IR102B
ETXIRBIT
TXIR Error from 16XCLK
0
%
IR113
TTXRF
TX pin rise time and fall
time
25
ns
IR114
TTXPDIRJ
16XCLK to TX jitter
1
TXCLK Note 2
IR120 TTXL2TXIRH TX falling edge (
↓) to
TXIR rising edge (
↑) (1)
7—
8
TXCLK
IR121A
TTXIRPW
TXIR pulse width
3
3
TXCLK At 115200 baud
IR121B
1.41
3.5
5
s
At 9600 baud (Note 5)
IR122
TTXIRP
TXIR bit period (1)
—16
TXCLK
IR123
TTXIRRF
TXIR pin rise time and fall
time
10
ns
50 pF load (Note 2)
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 TX pin operation may be asynchronous to the 16XCLK pin. This is the error from the desired baud rate
for the system.
4: The TXIR pin operation is synchronous to the 16XCLK pin. Any error present on the 16XCLK pin
(Parameter 1C) will be refelected on the TXIR pin.
5: This specification is not tested. This value is from the design target.
16XCLK
TX
TXIR
01
0
1
IR100
IR121
Bit
Bit ...
IR122
IR114
IR113
IR115
IR120
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