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ML13176 Datasheet(PDF) 1 Page - LANSDALE Semiconductor Inc. |
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ML13176 Datasheet(HTML) 1 Page - LANSDALE Semiconductor Inc. |
1 / 16 page www.lansdale.com ML13175 ML13176 UHF FM/AM Transmitter Page 1 of 16 Legacy Device: Motorola MC13175, MC13176 The ML13175 and ML13176 are one chip FM/AM transmitter subsys- tems designed for AM/FM communication systems. they include a Colpitts crystal reference oscillator, UHF oscillator, ÷ 8 (ML13175) or ÷ 32 (ML13176) prescaler and phase detector forming a versatile PLL system. Targeted applications are in the 260 to 470MHz band and 902 to 982 MHz band covered by FCC Title 47; Part 15. Other applica- tions include local oscillator sources in UHF and 900 MHz receivers, UHF and 900 MHz video transmitters, RF Local Area Networks (LAN), and high frequency clock drivers. ML13175/76 offer the fol- lowing features; • UHF Current Controlled Oscillator • Uses Easily Available 3rd Overtone or Fundamental Crystals for Reference • Fewer External Parts Required • Low Operating Supply Voltage (1.8 to 5.0 Vdc) • Low Supply Drain Currents • Power Output Adjustable (Up to + 10 dBm ) • Differential Output for Loop Antenna or Balun Transformer Networks • Power Down Feature • ASK Modulated by Switching Output On and Off • (ML13175) fo = 8 x fref, (ML13176) fo = 32 x fref • Operating Temperature Range - TA = -40° to +85°C ML13175-5P PLASTIC PACKAGE CASE 751B (SO–16) 16 1 CROSS REFERENCE/ORDERING INFORMATION MOTOROLA SO 16 MC13175D ML13175-5P SO 16 MC13176D ML13176-5P LANSDALE PACKAGE Note: Lansdale lead free (Pb) product, as it becomes available, will be identified by a part number prefix change from ML to MLE. PIN CONNECTIONS 8 7 6 5 4 3 2 1 9 10 11 12 13 14 15 16 Xtale PDout ICont VEE NC Osc 4 NC Osc 1 Xtalb Reg. Gnd Enable VCC Out 1 Out 2 Out Gnd Imod Figure 1. Typical Application as 320 MHz AM Transmitter 1. 50 Ω coaxial balun, 1/10 wavelength at 320 MHz equals 1.5 inches. 2. Pins 5, 10 & 15 are ground and connected to VEE which is the component/DC ground plane 2. side of PCB. These pins must be decoupled to VCC; decoupling capacitors should be placed 2. as close as possible to the pins. 3. The crystal oscillator circuit may be adjusted for frequency with the variable inductor 3. (ML13175); recommended source is Coilcraft “slot seven” 7mm tuneable inductor , Part 3. #7M3–821. 1.0k resistor. Shunting the crystal prevents it from oscillating in the fundamental 3. mode. 8 7 6 5 4 3 2 1 Osc Tank Coilcraft 150–05J08 0.165 µ (2) VEE 0.1 µ 1.0k 150p f/N ML13175 Crystal 3rd Overtone 40.0000 MHz 27k VCC RFC1 150p Z = 50 Ω (1) 9 10 11 12 13 14 15 16 RFout 1.3k AM Modulator 100p (ML13176) VCC 30p (ML13175) ML13175–30p ML13176–180p 0.82 µ 1.0k 0.01 µ ML13176 Crystal Fundamental 10 MHz (3) VCC 0.01 µ VEE SMA S1 VEE 0.1 µ S2 NOTES: Issue CcC |
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