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ENCODER / DECODER 4 / VD5026/5027/5028 ----------------------------------------------------------------------------------------------------------------1.0 FEATURES Wide operating voltage (2 - 6V) Low standby power consumption On-chip RC oscillator, no crystal required Four time transmission with polarity checking Maximum of 4,194,304 combinations encoding capability Minimize external components Easy interface with RF, Ultrasonic or Infrared transmission Media Bonding option available to maximize encoding capacity possible addressing states. (0, 1, open and 4th state)
www.DataSheet4U.com 2.0 ELECTRICAL CHARACTERISTICS
(2 - 6V) , 4 4,194,304 RF, , 4 (0, with 4 4th),
VDD = 5V, TA = 25℃
(unless otherwise specified ) LIMITS SYMBOL MIN TYP 5 MAX 6 0.6 400 0.19 72 25 V µA µA mA mA
KHz
PARAMETER
UNIT
Operating Voltage Standby Current Operating Current Output Voltage High Output Voltage Low Frequency Source Current (VOH = 4V) Sink Current (VOL = 1V) Input Current
VDD ISB IDD |VOH| VOL FREQ Ioh Iol Iin (TE)
2 4.0 45 -2.0 2.0 -
mA mA µA
3.0 APPLICATION Security systems Theft alarm systems Cordless telephone Smoke and fire alarm systems TV GAME remote controllers Garage door controller Other remote control systems (TOYS, TV …)
ENCODER / DECODER 4 / VD5026/5027/5028 ----------------------------------------------------------------------------------------------------------------4.0 APPLICATION INFORMATION Three state Operation
RX
VDD VT
VD5028-3
DI
VDD DO
TX
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The IC substrate should be connected to VDD. VDD。
VD5026-3
TE
RX
VDD VT
VD5027-3
DI D3 D2 D1 D0
.