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ML13175-5P Datasheet(PDF) 10 Page - LANSDALE Semiconductor Inc. |
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ML13175-5P Datasheet(HTML) 10 Page - LANSDALE Semiconductor Inc. |
10 / 16 page ML13175/ML13176 LANSDALE Semiconductor, Inc. Figure 17a. 320 MHz ML13176 FM Transmitter NOTES: 1. 50 Ω coaxial balun, 2 inches long. 2. Pins 5, 10 and 15 are grounds and connnected to VEE which is the component's side ground plane. These pins must be decoupled to VCC; decoupling capacitors should be placed as close as possible to the pins. 3. RFC1 is 180 nH Coilcraft surface mount inductor or 190 nH Coilcraft 146–05J08. 4. Recommended source is a Coilcraft ™slot seven 7.0 mm tuneable inductor, part #7M3–682. 5. The crystal is a parallel resonant, fundamental mode calibrated with 32 pF load capacitance. 8 7 6 5 4 3 2 1 Osc Tank Coilcraft 146–04J08 0.146 µ 51p 51p f/32 Crystal Fundamental 10 MHz (5) 6.8 (4) 220p VCC 0.47 µ 27k VCC VCC RFC1 (3) 510p 50 Ω (1) 9 10 11 12 13 14 15 16 RF Output to Antenna 0.047 µ 1.1k RF Level Adjust VCC = 3.8 to 3.3 Vdc 130k 33k 620 9.1k 15k 18k 100k 0.47 µ 1.0k 2N4402 (2) VEE Data Input (1.6 Vp–p) 0.1 µ 5.0k CW VCC SMA Figure 17b. 320 MHz NBFM Transmitter NOTES: 1. 50 Ω coaxial balun, 2 inches long. 2. Pins 5, 10 and 15 are grounds and connnected to VEE which is the component's side ground plane. These pins must be decoupled to VCC; decoupling capacitors should be placed as close as possible to the pins. 3. RFC1 is 180 nH Coilcraft surface mount inductor. 4. RFC2 and RFC3 are high impedance crystal frequency of 10 MHz; 8.2 µH molded inductor gives XL > 1000 Ω.. 5. A single varactor like the MV2105 may be used whereby RFC2 is not needed. 6. The crystal is a parallel resonant, fundamental mode calibrated with 32 pF load capacitance. RF Output to Antenna 8 7 6 5 4 3 2 1 Osc Tank Coilcraft 146–04J08 0.146 µ 100p 180p f/32 Crystal Fundamental 10MHz (6) VCC 0.47 µ 27k VCC VCC (3.6 Vdc – Lithium Battery) RFC1 470p UT–034 (1) 9 10 11 12 13 14 15 16 0.047 µ 1.0k RF Level Adjust VCC 130k 33k 6.2k 9.1k 15k 15k 4700p 1.0k 2N4402 (2) VEE 0.1 µ 5.0k CW VCC External Loop Amp 10p RFC2 RFC3 (4) VCC 1.0k (5) MMBV432L 0.01 µ + 10 µ Audio or Data Input SMA (3) Legacy Applications Information www.lansdale.com Page 10 of 16 Issue c |
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