U2741B-NFBG3Y Atmel, U2741B-NFBG3Y Datasheet
U2741B-NFBG3Y
Specifications of U2741B-NFBG3Y
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U2741B-NFBG3Y Summary of contents
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... Electrostatic sensitive device. Observe precautions for handling. 1. Description The U2741B is a PLL transmitter IC which has been especially developed for the demands of RF low-cost data transmission systems at data rates kBaud. The transmitting frequency range is 300 MHz to 450 MHz. The device can be used in both FSK and ASK systems ...
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... Antenna Antenna XTO VCO Power amp. ASK OR FSK Power up VCC VCO CLK f GND 64 LFVCC f n LFGND LF U2741B UHF ASK/FSK Remote control receiver Demod. Control IF Amp PLL XTO LNA VCO DIVC PWRSET PWRVCC PA ANT PWRGND1 PWRGND2 XTO XTO1 XTO2 1...3 4733B–RKE–09/05 ...
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... PWRSET Applied to VCC Pitch factor setting for crystal 16 DIVIC L: high crystal frequency H: low crystal frequency 4733B–RKE–09/05 ASK 1 16 FSK 2 15 VCC 3 14 CLK 4 13 U2741B GND 5 12 LFVCC 6 11 LFGND DIVIC PWRSET PWRVCC ANT PWRGND1 PWRGND2 XTO1 XTO2 9 U2741B 3 ...
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... FSK modulated. After switching on at FSK, the VCO locks onto the times higher frequency of the crystal oscillator. 4.1 FSK Transmission The U2741B is switched modulated by means of pin FSK. This is done by connecting capacitor C load capacitor C 4.2 ASK Transmission The U2741B is activated by V modulated by means of pin ASK ...
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... Measurement Output Network PWRVCC ANT , the impedance between f = 100 MHz 5 ) recommended by the manufacturer 220 . 4 5-1] can be used for output power evaluation, the exact PWRSET L10/ Load-opt U2741B , C , and nF selected in such 220 nH. L Feed Feed = 1 Load_opt 260 + j330 185 + j268 5 ...
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... ASK FSK C 7 CLK 3.39 MHz U2741B 6 ASK 1 OR FSK 2 Power VCC up 3 CLK VCO PA 4 GND LFVCC 6 f XTO LFGND U2741B 2.0 ... 5 DIVC 16 C PWRSET Loop2 15 R PWRSET PWRVCC ANT Feed PWRGND1 Loop1 12 PWRGND2 11 13.56 MHz XTO1 10 C XTO2 Antenna ...
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... Typ. IS off IS 4 transmit P 1.5 3 Ref P –0.5 1 Ref P Ref P Ref P Ref P 1.5 Ref V V – 0.7V outmax U2741B Unit V mW °C °C °C Unit K/W Max. Unit 0.35 µA 6 dBm 3 dBm –1.5 dB –4.0 dB –5 (peak) –40 dBC –58 dBC ...
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... ASK input - Low level input voltage - High level input voltage - Input current High FSK input - Low level input voltage - High level input voltage - Input current High U2741B 8 = 2. –40°C to +85°C (typically 25°C, 3V) S amb Test Conditions M-version 25°C ...
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... Ordering Information Extended Type Number U2741B-NFBY U2741B-NFBG3Y 10. Package Information 0.635 nom 0.635 = 4.445 nom. Drawing-No.: 6.543-5060.01-4 Issue: 2; 05.02.99 4733B–RKE–09/05 Package Remarks Tube, optimized power-supply rejection, value of C SSO16 differs from M-version, enhanced XTO stability, Pb-free SSO16 Taped and reeled, see above, Pb-free 5 max ...
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... Revision History Please note that the following page numbers referred to in this section refer to the specific revision mentioned, not to this document. Revision No. 4733B-RKE-09/05 U2741B 10 History Put datasheet in a new template Pb-free Logo on page 1 added Ordering Information on page 9 changed 4733B–RKE–09/05 ...
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... Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN ATMEL’S TERMS AND CONDI- TIONS OF SALE LOCATED ON ATMEL’S WEB SITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ...