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Infrared transceiver 1.0 introduction to the circuit diagram

2017-08-10 22:04  
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This article is the summary of infrared transceiver circuit diagram of the 1.0. Do you have any idea on the circuit and opinions, welcome to contact us. At the same time also hope that this article is helpful to you. This is an important component of the circuit 74 hc4538. Before you see The circuit diagram, we can understand a little in The face of The component is introduced: The 74 hc4538  is identical in pinout to The MC14538B. The The device inputs are compatible with standard CMOS outputs; with Pullup resistors, they are compatible with LSTTL outputs. This dual monostable multivibrator may be triggered by either the The positive or the negative edge of an input pulse, and produces a Precision output pulse over a wide range of pulse widths. Because the Device has conditioned the trigger inputs, there are no trigger - input rise And losing time restrictions. The output pulse width is determined by The External timing components, Rx and Cx. The device has a reset The function which forces the Q output low and the Q output high,Chopped of the state of the output pulse circuitry.
• Unlimited Rise and Fall Times charges on the Trigger Inputs
• the Output Pulse is Independent of the Trigger Pulse Width, plus or minus 10% Guaranteed Pulse Width Variation from Part to Part (Using The Same Test Jig)
• the Output Drive Capability: 10 LSTTL Loads
• Outputs Directly Interface to CMOS, NMOS and TTL
• Operating Voltage Range: 3.0 to 6.0 V, Low Input Current: 1.0 (including A
• High Noise Immunity Characteristic of CMOS Devices
• In the Compliance with the Requirements Defined by JEDEC Standard No. 7 a
• Chip Complexity: 145 FETs or 36 Equivalent Gates 

 

Download:

Schematic -?click here

Parts? -?click here

Single-side PCB (25.9 x 55.1 mm)? -?click here

Part list:

Resistors :
R1 – 12 K? SMD (size 1206)
R2 – not use if you have R1=12K and C3=1n5
R3 – 270 SMD (size 1206)
R4 – 2R7 (not SMD, size 0207)
R5 – 100 K? SMD (size 1206)

Capacitors :
C1 – 47uF / 6.3V tantalum
C2 – 47uF / 6.3V tantalum
C3 – 1n5 SMD (size 1206)
C4 – not used
C5 – 100n SMD (size 1206)
C6 – 100n SMD (size 1206)

ICs :
IC1 -?? HSDL – 1001 (IR transceiver 115kBd 3V, SMD, HP – now Agilent Technologies)
IC2 -?? 74HC4538? (SMD)


Diodes :
D1 – HSDL – 4220 (IR LED 5mm 30°, HP – now Agilent Technologies)
D2 – red LED 3 mm

Connectors :
SV1 – 9 pin 2.54 mm, male (on board) female (soldered on battery pack)

Box :
size 31 x 61 (WxL) mm

Battery Pack :
Battery Pack for two AAA batteries with 2 soldering contacts:

Battery :
2 pcs. of AAA?alkalinebatteries !

Remarks :

1. Battery life time in IDLE mode is approx. 4 month (depend on use). You can use small switch to switching between SLEEP mode and IDLE mode, so battery life can be increase up to 3 years (depend on use).

2. You can use PDAwin IR transceiver?separatelyfrom your PDA up to range approx. 1 meter.

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