| Part Numbert | Mfg | Packt | D/C | Descriptiont | Qty | Company/Contact | |
| TL431CPK-T1 | TI | 1010 |
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| TL431CPK-T1 | JRC | SOT-89 | 09+ | 1000 |
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| TL431CPK-T1 | TI | . | 1000 |
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| TL431CPK-T1 | TI | SOT-89 | 03+ | 423 |
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| TL431CPK-T1 | TI(TEXAS) | SOT-89 | 2006 |
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| TL431CPK-T1 | TI | new in sto | 全新原装货 | 1000 |
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| TL431CPK-T1 | TI | SOT89 | 07+/08+ | 1000 |
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| TL431CPK-T1 | T | NO | 300 |
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| TL431CPK-T1 | TI(TEXAS) | SOT-89 | 2006 | 15000 |
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| TL431CPK-T1 | T | in stock |
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| TL431CPK-T1 | TexasInstrum | 988 |
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| TL431CPK-T1 | T | 03+ | 220 |
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| TL431CPK-T1 | TI | 1000 |
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TL431CPK-T1 Datasheet o o o o : - o : - o : - o o : - o o o o o o ( A ) ( l e s ) a o A a 6 l y I O A u o n ~ s J a # ~ . u a O } J o l o a l l 0 0 TL431CPK-T1 Price 100.00 200.00 300.00 400.00 500.00 600.00 700.00 800.00 900.00 1000.00 1100.00 1200.00 1300.00 1400.00 1500.00 1600.00 1700.00 1800.00 1900.00 2000.00 2100.00 2200.00 2300.00 2400.00 2500.00 2600.00 2700.00 2800.00 2900.00 3000.00 TL431CPK-T1 on stock
Input impedance variation is found in most GSM power amplifiers. This is due to a device phenomena where CBE and CCB (CGS and CSG for a FET) vary over the bias voltage. The same principle used to make varac- tors is present in the power amplifiers. The junction capacitance is a function of the bias across the junc- tion. This produces input impedance variations as the Vapc voltage is swept. Although this could present a problem with frequency pulling the transmit VCO off frequency, most synthesizer designers use very wide loop bandwidths to quickly compensate for frequency variations due to the load variations presented to the VCO. |
