T5750-6AQJ Atmel, T5750-6AQJ Datasheet
T5750-6AQJ
Specifications of T5750-6AQJ
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T5750-6AQJ Summary of contents
Page 1
... Operation for Tire Pressure Systems 1. Description The T5750 is a PLL transmitter IC which has been developed for the demands of RF low-cost transmission systems at data rates kBaud. The transmitting frequency range is 868 MHz to 928 MHz. It can be used in both FSK and ASK systems ...
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... Clock output signal for micro con roller 1 CLK The clock output frequency is set by the crystal to f Switches on power amplifier, used for 2 PA_ENABLE ASK modulation 3 ANT2 Emitter of antenna output stage 4 ANT1 Open collector antenna output T5750 2 CLK 1 8 PA_ENABLE 2 7 ANT2 3 6 ANT1 4 5 Configuration ...
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... Configuration See ESD protection circuitry (see See ESD protection circuitry (see T5750 Power up/down f CLK PDF CP ANT2 3 LF ANT1 PA VCO 4 PLL VS VS 1.5 k 1.2 k XTAL 182 µA Figure 4-5 on page Figure 4-5 on page 200 k ENABLE ENABLE 8 GND XTO XTAL 5 T5750 ...
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... The T5750 is activated by ENABLE = H. PA_ENABLE must remain L for t signal can be taken to clock the microcontroller and the output power can be modulated by means of pin PA_ENABLE. After transmission PA_ENABLE is switched to L and the microcon- troller switches back to internal clocking. The T5750 is switched back to standby mode with ENABLE = L. 4.2 FSK Transmission The T5750 is activated by ENABLE = H ...
Page 5
... The clock of the crystal oscillator can be used for clocking the microcontroller. Atmel ATARx9x has the special feature of starting with an integrated RC-oscillator to switch on the T5750 with ENABLE = H, and after assume the clock signal of the transmission IC, so that the message can be sent with crystal accuracy. ...
Page 6
... C series should be used to achieve a better tolerance value and to have the possibility to realize the Z Load,opt C forms together with the pins of T5750 and the PCB board wires a series resonance loop that 1 suppresses the 1 best suppression is achieved when C ANT2. The loop antenna should not exceed a width of 1.5 mm, otherwise the Q-factor of the loop antenna is too high ...
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... Figure 4-3. ASK Application Circuit C2 Loop Antenna 4546F–RKE–12/08 S1 BPXY ATARx9x S2 BPXY BPXY OSC1 7 T5750 Power up/down CLK PA_ENABLE 2 PDF ANT2 3 C1 ANT1 PA VCO 4 PLL L1 VS VDD VS 1 VSS 20 BPXY ENABLE 8 64 GND XTAL XTAL XTO 5 C4 T5750 VS 7 ...
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... Figure 4-4. FSK Application Circuit S1 S2 PA_ENABLE C2 Loop C1 Antenna L1 T5750 8 BPXY ATARx9x BPXY BPXY OSC1 7 T5750 Power up/down CLK PDF CP ANT2 3 LF ANT1 PA VCO 4 PLL VS VDD VS 1 VSS 20 BP42/T2O 18 BPXY ENABLE 8 GND XTAL XTAL XTO 5 C4 4546F–RKE–12/08 ...
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... ANT2 XTAL ENABLE Minimum Maximum 5 100 150 –55 125 –55 125 (1) –0 0.3) S Value 170 Symbol Min. Typ. I S_Off < 8.5 S_Transmit P 3.5 5.5 Ref T5750 Unit V mW °C °C °C V Unit K/W Max. Unit 350 nA 7 µ dBm 9 ...
Page 10
... Input current high Low level input voltage PA_ENABLE input High level input voltage Input current high Note higher than 3.6V, the maximum voltage will be reduced to 3.6V. S T5750 10 = 25°C. All parameters are referred to GND (pin 7). amb = –40°C to +85°C, amb = 3. 2. – ...
Page 11
... Ordering Information Extended Type Number T5750-6AQJ 9. Package Information Package: TSSOP 8L Dimensions 0.65 = 1.95 nom. Drawing-No.: 6.543-5083.01-4 Issue: 2; 15.03.04 4546F–RKE–12/08 Package Remarks TSSOP8L Taped and reeled, Marking: T570, Pb-free 3 ±0.1 +0.06 0.31 -0.07 0.65 nom T5750 3 ±0.1 3.8 ±0.3 4.9 ± ...
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... Please note that the following page numbers referred to in this section refer to the specific revision mentioned, not to this document. Revision No. 4546F-RKE-12/08 4546E-RKE-02/07 4546D-RKE-09/05 4546C-RKE-05/05 4546B-RKE-07/04 T5750 12 History Put datasheet in the newest template Section 7 “Electrical Characteristics” on page 10 changed Put datasheet in the newest template Pb-free logo on page 1 deleted Pb-free logo on page 1 added ...
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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 ...