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TMS3705DDRQ1 Imagem

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Veja as especificações do produto para obter detalhes do produto.



Ficha de dados:
Pacote / caso:
Categoria de Produto:
Circuitos integrados RF
11844 PCS

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Parâmetro do produto

Lead Free Status / RoHS Status
Lead free / RoHS Compliant
New & Original - Factory Package
Order Limit
No Limit for TMS3705DDRQ1
Delivery Services
Payment Terms
Wire Transfer or Paypal or Western Union or MoneyGram or Credit Card

TMS3705DDRQ1 Detalhes do produto


1.1 Features 

• Base Station IC for TI-RFid™ RF Identification Systems

• Drives Antenna

• Sends Modulated Data to Antenna

• Detects and Demodulates Transponder Response (FSK)

• Short-Circuit Protection

• Diagnosis

• Sleep-Mode Supply Current: 0.2 mA

• Designed for Automotive Requirements

• 16-Pin SOIC (D) Packag

1.2 Applications

• Car Access

• Immobilization

• Building Access

• Livestock Reader

1.3 Description

The TMS3705 transponder base station IC is used to drive the antenna of a TI-RFid transponder system, to send data modulated on the antenna signal, and to detect and demodulate the response of the transponder. The response of the transponder is a frequency shift keyed (FSK) signal. The high or low bits are coded in two different high-frequency signals (134.2 kHz for low bits and 123 kHz for high bits, nominal). The transponder induces these signals in the antenna coil according an internally stored code. The energy that the transponder needs to send out the data is stored in a charge capacitor in the transponder. The antenna field charges this capacitor in a preceding charge phase. The IC has an interface to an external microcontroller. There are two configurations for the clock supply to both the microcontroller and the base station IC:

1. The microcontroller and base station IC are supplied with a clock signal derived from only one resonator: The resonator is attached to the microcontroller. The base station IC is supplied with a clock signal driven by the digital clock output of the microcontroller. The clock frequency is either 4 MHz or 2 MHz, depending on the selected microcontroller type.

2. The microcontroller and the base station each have their own resonator. The base station IC has an on-chip PLL that generates a clock frequency of 16 MHz for internal clock supply only. The TMS3705BDRG4 and TMS3705DDRG4 are optimized for higher communication data rates and, therefore, work without frequency measurement during the write phase.


Request a quote TMS3705DDRQ1 at censtry.com. All items are new and original with 365 days warranty! The excellent quality and guaranteed services of TMS3705DDRQ1 In Stock for Sale, Check stock quantity and pricing, view product specifications, and order contact us:sales@censtry.com
The price and lead time for TMS3705DDRQ1 depending on the quantity required, Please send your request to us, Our sales team will provide you price and delivery within 24 hours, We sincerely look forward to cooperating with you.

TMS3705DDRQ1 Produtos Associados

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Feedback do cliente

  • **epair Pa*** 2023-09-23

    Great company to work with....Provide new and original products! Very reliable!

  • **eil Walk*** 2023-09-22


  • **** Schü***** 2023-09-22

    Joe is very professional and helpful. We recommend CENSTRY as a business partner.

  • ****umori T***** 2023-09-21

    I will give a 5 star.

  • ****rew B***** 2023-09-19

    John was very professional. Parts came quick with no hassles. Looking forward to our next order.

  • ****I PROS***** 2023-09-15

    Many thanks for the fast quotation and fast shipment. Parts was perfect!! Thanks Oliver ;)

  • ****gey Vasilievich Zhez***** 2023-09-07

    nice doing business with Tomohiro, always good quality and fast shipment...

  • ****66236 PEDRO PE***** 2023-08-22

    Paul is honest and easy to work with. Payment was sent immediately.

  • **omas Hov*** 2023-07-21

    Professional company, quick respoonse. All new in original. Reliable supplier in China. I hope we will do much more business in the future.

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