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W55RFS27T1BH Datasheet(PDF) 11 Page - Winbond |
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W55RFS27T1BH Datasheet(HTML) 11 Page - Winbond |
11 / 17 page W55RFS27T1B Publication Release Date:May 24, 2005 - 11 - Revision A3 4.1.2 Application Circuit for 6 Control Functions Set TEST = 0. 1. Use this circuit when F1 and F2 are required (i.e., when more than 4 functions are required). 2. When a 9-V battery is used, an external power switch is required to save power. 3. LEDs require extra components. {Doc} {RevCode} W55RFS27T3B Application Circuit (49MHz) A 11 Tuesday, July 06, 2004 Title Size Document Number Rev Date: Sheet of VDD VSPLY VDD VDD VDD VDD VDD Dependent on Antenna LED control circuit Overtone Crystal Input Protection For 49MHZ * 27MHz,(L1,C7)= (56nH, 470pF), (L7,C33)=none * 35MHz,(L1,C7)= (47nH, 360pF), (L7,C33)=(3.3uH,47n) * 40MHz,(L1,C7)= (47nH, 300pF), (L7,C33)=(2.2uH,47n) * 49MHz,(L1,C7)= (39nH, 240pF), (L7,C33)=(1uH,47n) ID0 ID1 1N4148 D2 L2 1uH JP7 ID1 1 2 3 300 R5 JP6 ID0 1 2 3 ANTENNA R1 20K C7 240p SW1 Forward 1N4148 D1 C19 47n SW2 Backward L7 1uH R4 1K LED LED1 + C18 10u C13 47n 100u C0 SW3 Left turn SW5 F1 L1 39nH R3 1K 49.86MHz C8 7p C9 7p C33 47n SW6 F2 SW4 Right turn U1 W55RFS27T3B TXOUT 14 X2 11 CKSEL0 3 VDD 8 VSS 7 ANT 6 CKSEL1 5 RESET 9 S4 2 S3 1 S2 16 S1 15 ID1 12 ID0 13 TEST 4 X1 10 JP3 Power In 1 2 BT1 BAT S1 S1 CKSEL0 TXOUT ID1 S2 S2 ID0 TXOUT TXOUT CKSEL1 CKSEL0 CKSEL1 S2 S1 |
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