U2745BMFBG3 Atmel, U2745BMFBG3 Datasheet
U2745BMFBG3
Specifications of U2745BMFBG3
Related parts for U2745BMFBG3
U2745BMFBG3 Summary of contents
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Features • Very High Transmitting Frequency Accuracy Compared to SAW Solutions (Enables Receivers at Lower Bandwidth than with SAW Resonators) • Lower Cost than the Usual Discrete Solutions Using SAW and Transistors • Supply Voltage 2 4.0 V ...
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Figure 1. System Block Diagram Remote control transmitter 1 Li cell U2745B Encoder ATARx9x Keys Figure 2. Block Diagram U2745B 2 UHF ASK PLL Antenna Antenna XTO VCO Power amp. ASK OR EN Power up VCC VCO CLK f GND ...
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Pin Configuration Figure 3. Pinning SSO16 Pin Description Pin Symbol Function 1 ASK Modulation input ASK 2 EN Enable input 3 VCC Supply voltage 4 CLK Clock output 5 GND Ground 6 LFVCC Supply voltage VCO 7 LFGND VCO ground ...
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General Description Functional Description ASK Transmission Take-over of the Clock Pulse in the Microcontroller Application Circuit Output Power Measurement U2745B 4 The fully integrated VCO and the “single-ended open-collector” output allow particularly simple, low-cost RF miniature transmitters to be assembled. ...
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Figure 5. Application Circuit ASK CLK 3.39 MHz 4734A–RKE–11/03 Figure 4. Measurement Output Network PWRVCC ANT ASK Power VCC up 3 CLK VCO PA 4 GND LFVCC ...
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Absolute Maximum Ratings Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated in ...
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Electrical Characteristics (Continued) All parameters are refered to GND (pin 5), V The possible operating ranges refer to different circuit conditions: V Parameters Frequency range of the VCO Clock output (CMOS microcontroller compatible) Load capacitance at CLK Series resonance R ...
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Ordering Information Extended Type Number U2745B-MFB U2745B-MFBG3 Package Information U2745B 8 Package Remarks SSO16 Tube SSO16 Taped and reeled 4734A–RKE–11/03 ...
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... No licenses to patents or other intellectual property of Atmel are granted by the Company in connection with the sale of Atmel products, expressly or by implication. Atmel’s products are not authorized for use as critical components in life support devices or systems. ...