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    Rfapnote

    Uploaded by

    Tushar Paithankar
    This document provides specifications for a TWS-434 transmitter, a matching RWS-434 receiver, and an adjustable inductor. It also includes application notes and specifications for a typical keychain transmitter circuit. The transmitter operates at 300-433MHz with 8mW output power, and the receiver has a sensitivity of 3uVrms and outputs digital and linear signals. Adjustable parameters for the transmitter include frequency, power, and modulation bandwidth.

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    Attribution Non-Commercial (BY-NC)
    Download as PDF, TXT or read online from Scribd

    Rfapnote

    Uploaded by

    Tushar Paithankar
    25 views2 pages
    This document provides specifications for a TWS-434 transmitter, a matching RWS-434 receiver, and an adjustable inductor. It also includes application notes and specifications for a typical keychain transmitter circuit. The transmitter operates at 300-433MHz with 8mW output power, and the receiver has a sensitivity of 3uVrms and outputs digital and linear signals. Adjustable parameters for the transmitter include frequency, power, and modulation bandwidth.

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    rfapnote

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    This document provides specifications for a TWS-434 transmitter, a matching RWS-434 receiver, and an adjustable inductor. It also includes application notes and specifications for a typical keychain transmitter circuit. The transmitter operates at 300-433MHz with 8mW output power, and the receiver has a sensitivity of 3uVrms and outputs digital and linear signals. Adjustable parameters for the transmitter include frequency, power, and modulation bandwidth.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    25 views2 pages

    Rfapnote

    Uploaded by

    Tushar Paithankar
    This document provides specifications for a TWS-434 transmitter, a matching RWS-434 receiver, and an adjustable inductor. It also includes application notes and specifications for a typical keychain transmitter circuit. The transmitter operates at 300-433MHz with 8mW output power, and the receiver has a sensitivity of 3uVrms and outputs digital and linear signals. Adjustable parameters for the transmitter include frequency, power, and modulation bandwidth.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 2

    TWS-434 TRANSMITTER

    16.1mm 1 2 3 4 5 6

    RWS-434 RECEIVER
    pin 1 : Vcc pin 2 : Vcc pin 3 : Gnd pin 4 : Gnd pin 5 : RF Output pin 6 : Code Input
    43.5mm

    NEW !!

    11.5mm

    10.5mm

    1 2 3 4 5 6 7 8

    25.4mm
    2.54mm

    pin 1 : Gnd pin 2 : Digitak Output pin 3 : Linear Output pin 4 : Vcc pin 5 : Vcc pin 6 : Gnd pin 7 : Gnd pin 8 :Ant ( About 30 - 35 cm )

    14.5mm

    Frequency 300 - 433MHz Band


    Moulation : AM ( Code ) Supply Voltage : 1.5v - 15 v dc RF Output Power : 8mW

    13.5mm

    Frequency 300 - 433MHz Band


    Moulation : AM Supply Voltage : 4.5v - 5.5 v dc Sensitivity : 3uVrms Output : Digital & Linear Application : Radio Remote Control

    Symbol Vcc Icc Vin Vii Fo FO Po

    Parameter

    Conditions

    Min

    Typ

    Max 12 9 Vcc 0.3 315.2 +/-200 +2 100 100

    Unit V mA V V MHz KHz dBm KHz uS uS

    Operating supply voltage 1.5 Peak Current 5 Input High Voltage IData=100Ua (High) Vcc-0.5 Input Low Voltage IData=0Ua (Low) Absolute Frequency 314.8 315 Relative To 433.92MHz +/-150 RF Out Power Into 50 -3 0 Modulation Bandwidth External Encoding 5 Tr Modulation Rise Time Tf Modulation Fall Time Notes : ( Case Temperature = +25C+/-2C Test Load Impedance = 50 )

    Parameter

    Conditions

    Min

    Typ

    Max

    Application Circuit I:
    Typical Keychain Transmitter using HCS 300 or PIC16C621, a rolling code Encoder from Microchip Technology Inc.

    Symbol Vcc Operating supply voltage ITot Operating supply voltage V Data Data Out Electrical Characteristics Characteristics Operation Radio Frequency Sensitivity Channel Width

    Data = +200 uA ( High )I I Data = -10 uA ( Low ) SYM FC Pref Min

    4.9 Vcc-0.5 Typ 300 - 434

    5 4.5 -

    5.1 Vcc 0.3 Max -106

    V V Unit MHz dBm KHz

    +-500

    ISHTRONICS, Inc.

    3620 Kennesaw N. Ind. Pkwy Ste F. Kennesaw, GA 30144 Tel: (770)590-1822 Fax: (770)422-8408 e-mail: info@ishtronics.com

    Noise equivalent BW Baseboard data rate

    NEB

    4 3

    KHz Kb/s

    ISHTRONICS, Inc.

    3620 Kennesaw N. Ind. Pkwy Ste F. Kennesaw, GA 30144 Tel: (770)590-1822 Fax: (770)422-8408 e-mail: info@ishtronics.com

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