180～224kHz Carrier frequency generator

Published:2011/7/28 3:21:00 Author:Ecco | Keyword: 180～224kHz , Carrier frequency , generator | From:SeekIC

The generator shown in the chartcan be used in the channel modulation of carrier, the channel carrier frequency has 12 kinds:180kHz、184kHz、188kHz、192kHz、 196kHz、200kHz、204kHz、208kHz、212kHz、216kHz、220kHz、224kHz. Component selection: Resistors: Rl、R48：3．9k、R2、R3、R8、R25、R32、R47：10k，R4、R9、R49、R52：3．3k，R5、R36：2k，R6、Rl9、R33、R41：20k，R7：24k，Rl0：110Ω，Rll：4．7k，Rl2：750Ω，Rl3、R23、R31、R50：1.3k,R14：560Ω，Rl5、Rl7、Rl8、R37、R38：510k，Rl6：910Ω，R20：16Ω，R21(See the table below)，R22、R30：lk，R24、R29：300Ω，R26、R34、R43：2．7k，R27：180Ω，R28：1．5k，R35：240Ω，R39：300k，R40：1M，R42、R46：9．1k，R44：4．3k，R45：5．1k，R51：100k. The model is RTX-0．125W. Potentiometer RPl: 4．7k，RP2：150Ω，RP3：680Ω，RP4：2．2kΩ. Capacitor Cl C3,C7, Cl5, Cl6、C26～C29：0.047pF,C2, Cl9, C30：0．1μF,C4：510pF, C5, C8, C9, C20, C21～C24：5μF30V，C6：2400pF, Cl0(optical using when measurement ), Cll, Cl4, Cl7, C21, C25, see the table below, Cl2：20pF, Cl3：680pF, Cl7：5500pF, Cl8, C31, C32：50μF30V, C33, C34：0．22μF. Diode: VD1, VD2, VD5, VD7～VDll, VDl4, VDl5：2CKl8 or 2CK72C, VDl2, VDl3, VDl7, VD20：2CPl4. Regulator VD3, VDl6: 2CW5 (Current is6mA, regulator voltage is 12.5 ± 0.5V), VD4: 2CWl4 (voltage is 6.8 ± 0.2V), VDl9: 2DW7C. Varactor VD6i 2CC5. LED VDl8: BT-201. Transistor VTl, VT4 ~ VT6, VT8 ~ VTl0: 3DG6C, β = 85 ~ 115, VT2: 3AG43, β = 50 ~ 85, VT3: 3DK28, β = 65 ~ 115, VT6, VTll: 3DGl28, β = 65 ~ 115 . Relay K:] RW-3M. Inductance L: LH2A-straight-220μH (Inductors). Pulse transformer Tl: Model MX0-200, Ll-3, wound 12 turns, L2-3, L4-5, L6-7, L8-9are around with 24 turns, they are made of high strength magnet wire with Φ0.21mm.



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