| Part Numbert | Mfg | Packt | D/C | Descriptiont | Qty | Company/Contact | |
| TP3070AVXG | NS | PLCC28 | 06+ | 36 |
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| TP3070AVXG | NSC | 09+ | 2000 |
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TP3070AVXG Datasheet The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. TP3070AVXG Price PIN DESCRIPTIONS LO, Ll - Low End ofResistor HO, Hl - High End ofResistor WO,W1 - Wiper TerminalofResistor VB - Substrate Bias Voltage SOUT - Stacked Configuration Output RST - SerialPort Reset Input DQ - SerialPort DataInput CLK - SerialPort ClockInput COUT - Cascade Port Output VCC - +5 Volt Supply GND - Ground NC - No Internal Connection TP3070AVXG on stock
In addition to system cost and size, click and pop perfor- mance is effected by the size of the input coupling capacitor, Ci. A larger input coupling capacitor requires more charge to reach its quiescent DC voltage (nominally l/2 VDD). This charge comes from the output via the feedback and is apt to create pops upon device enable. Thus, by minimizing the ca- pacitor size based on necessary low frequency response, turn-on pops can be minimized. Besides minimizing the input capacitor size, careful consid- eration should be paid to the bypass capacitor value. Bypass capacitor, CB, iS the most critical component to minimize turn-on pops since it determines how fast the LM4871 turns on. The slower the LM4871's outputs ramp to their quiescent DC voltage (nominally l/2 VDD), the smaller the turn-on pop. Choosing CB equal t0 1.0 pF along with a small value of C, (in the range of 0.1 pF t0 0.39 pF), should produce a virtually clickless and popless shutdown function. While the device will function properly, (no oscillations or motorboating), with CB equal t0 0.1 pF, the device will be much more susceptible to turn-on clicks and pops. Thus, a value of CB equal to 1.0 pF is recommended in all but the most cost sensitive de- signs. |
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