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U2741B Datasheet(PDF) 3 Page - ATMEL Corporation |
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U2741B Datasheet(HTML) 3 Page - ATMEL Corporation |
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3 / 9 page 
3 U2741B 4733A–RKE–11/03 Pin Configuration Figure 3. Pinning SSO16 VCC CLK GND LFVCC LFGND LF ASK FSK 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 PWRVCC ANT PWRGND1 PWRGND2 XTO1 XTO2 DIVIC PWRSET U2741B Pin Description Pin Symbol Function 1 ASK Modulation input ASK 2 FSK Modulation input FSK 3 VCC Supply voltage 4 CLK Clock output 5 GND Ground 6 LFVCC Supply voltage VCO 7 LFGND VCO ground 8 LF Circuit PLL loop 9 XTO2 FM modulation output 10 XTO1 Connection for crystal 11 PWRGND2 Power GND2 12 PWRGND1 Power GND1 13 ANT RF output 14 PWRVCC Supply voltage power amplifier 15 PWRSET Applied to VCC 16 DIVIC Pitch factor setting for crystal L: high crystal frequency H: low crystal frequency |
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