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參數(shù)資料
| 型號(hào)： | GP1H20 |
| 廠商： | Sharp Corporation |
| 英文描述： | IrDA 1.0 Compliant Infrared Transceiver Module(IrDA 1.0兼容的紅外收發(fā)模塊) |
| 中文描述： | 兼容的IrDA 1.0紅外收發(fā)器模塊（紅外1.0兼容的紅外收發(fā)模塊） |
| 文件頁(yè)數(shù)： | 5/9頁(yè) |
| 文件大?。?/td> | 84K |
| 代理商： | GP1H20 |
Infrared Transceiver
GP1H20
Technical Data
Preliminary Data
5
7. Truth Table
INPUTS
EI
X
X
E
IH
E
IH
E
IL
OUTPUTS
IE (LED)
High (On)
High (On)
Low (Off)
Low (Off)
Low (Off)
TXIN
V
IH
V
IH
V
IL
V
IL
V
IL
SD
V
IH
RXD
NV
High
Low
High
High
V
IL (or OPEN)
V
IH
V
IL (or OPEN)
x
SD mode
SD mode
X ... Don’t care
NV ... Not Valid
E
IH
... Optical inputs to Receiver
E
IL
... No Optical inputs to Receiver
8. Pinouts
PIN #
1
2
3
4
5
6
Description
Symbol
LEDA
TXD
SD
RXD
GND
V
CC
LED Anode
Transmitter Data Input
Shut Down Circuit Input
Receiver Data Output
Ground
Supply Voltage
9. Application Electrical Design Hints
The following figure and table shows the recommended application circuit and passive values for GP1H20. The following
table only provides an idea for external passive values and is only applicable to customers’ design reference.
See Section 11 for technical reference data in optical / electrical characteristics.
9-1 Application Circuit and External Passives
Following application circuit and external passives enables GP1H20 to operate in both IrDA 1.0 and IrDA 1.2 low
power option communication mode at V
CC
= 3.0V.
Components
CX1
CX2
R1
R2
Recommended Values
47
μ
F
1500 pF
47
, 1/8W
1k
, 1/8W
2.2
, 1/2W (IrDA 1.0 at V
CC
= 3.0V)
43
, 1/8W (IrDA 1.2 Low Power at
V
CC
= 3.0V)
RL
All recommended values are at V
CC
= 3.0V
9-2 Shut Down Mode
The “Shut-Down” pinout is an active Low terminal, and performs the power saving function in accordance with
following chart:
PIN 1
PIN 6
PIN 1
PIN 6
CX1
6
5
4
3
2
1
CX2
R2
TXD
RXD
VCC
RL
R1
SD
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