Index 415

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transistor UMG2N and EMG2 internal circuits

Published:2011/5/16 20:21:00 Author:Christina | Keyword: transistor, internal circuit

The transistor UMG2N and EMG2 internal circuits are as shown: (View)

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Flash beat circuit

Published:2011/5/16 20:18:00 Author:Christina | Keyword: Flash, beat

Flash beat circuit
Normally, the potentiometer R2 adjusts the flash frequency of the neon relaxation oscillator to once per second, so there is no need to add the timer. You can regulate this beat frequency oscillator by the 0.55 min flash number. (View)

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Transistor UMH11N and EMH11, UMH2N, EMH2 internal circuits

Published:2011/5/16 9:49:00 Author:Christina | Keyword: transistor, internal circuit

The Transistor UMH11N and EMH11, UMH2N, EMH2 internal circuits are as shown: (View)

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RTL8019 NIC circuit controlled by the 8052 single chip

Published:2011/5/16 10:08:00 Author:Christina | Keyword: NIC, single chip

The RTL8019 NIC circuit controlled by the 8052 single chip is as shown: (View)

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Transistor UMH14N internal circuit

Published:2011/5/16 9:47:00 Author:Christina | Keyword: transistor, internal circuit

The Transistor UMH14N internal circuit is as shown: (View)

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Transistor UMH3N internal circuit

Published:2011/5/16 9:45:00 Author:Christina | Keyword: transistor, internal circuit

The Transistor UMH3N internal circuit is as shown: (View)

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transistor EMH3 internal circuit

Published:2011/5/16 9:44:00 Author:Christina | Keyword: transistor, internal circuit

The transistor EMH3 internal circuit is as shown: (View)

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Transistor UMH8N internal circuit

Published:2011/5/16 9:46:00 Author:Christina | Keyword: transistor, internal circuit

The Transistor UMH8N internal circuit is as shown: (View)

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transistor UMH5N internal circuit

Published:2011/5/16 9:43:00 Author:Christina | Keyword: transistor, internal circuit

The transistor UMH5N internal circuit is as shown: (View)

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transistor AK25GB40 and AK25GB80 internal circuits

Published:2011/5/16 7:56:00 Author:Christina | Keyword: transistor, internal circuit

The transistor AK25GB40 and AK25GB80 internal circuits are as shown: (View)

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transistor AK25HB120 and AK25HB160 internal circuits

Published:2011/5/16 4:41:00 Author:Christina | Keyword: transistor, internal circuit

The transistor AK25HB120 and AK25HB160 internal circuits: (View)

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The frequency converter circuit diagram based on TQ5638 GPS receiver

Published:2011/5/16 23:00:00 Author:Ecco | Keyword: frequency converter, GPS receiver

The frequency converter circuit diagram based on TQ5638 GPS receiver
The chart shows a frequency converter with two modes of KPCS CDMA and GPS. IF range is 80MHz ~ 230MHz, it uses an external tuner. Low-noise amplifier (LNA) has an adjustable 3-order intercept point (IP3), so that the impact of intermodulation and intermodulation is reduced to minimum. Mixer IF is differential output form (for GPS mode, it can be single-ended or differential output form), it has excellent linearity and low noise figure. TQ5638 uses 4mm × 4mm MLF-24 package. TQ5638 meets the TLA / EIA 98-C wireless communication standard and it is suitable for KPCS CDMA and A-GPS. (View)