ncp2824 ON Semiconductor, ncp2824 Datasheet
ncp2824
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ncp2824 Summary of contents
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... Mono Class D Amplifier with AGC Description The NCP2824 is a Filterless Class D amplifier capable of delivering load with supply voltage. With the same battery voltage, it can deliver 1 load with less than 1% THD+N. The non−clipping function automatically adjusts the output voltage in order to control the distortion when an excessive input is applied to the amplifier ...
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V Auto Gain control INN PreAmplificator INP Single CNTL Wire Interface Auto Gain control C1 VDD PWM Modulator GND Figure 1. Simplified Block Diagram http://onsemi.com 2 OUTN H BRIDGE OUTP ...
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Table 1. PIN FUNCTION DESCRIPTION Pin Name Pin Type A1 INP Input Positive Input C1 INN Input Negative Input A2 PVDD POWER Power Supply: This pin is the power supply of the device. A 4.7 mF ceramic capacitor or larger ...
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Table 3. ELECTRICAL CHARACTERISTICS to 5.5 V (Unless otherwise noted). Typical values are referenced to T Symbol Parameter GENERAL PERFORMANCES V Operational Power Supply DD F Oscillator Frequency OSC I Supply current dd I Shutdown current sd T Turn ON ...
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Table 3. ELECTRICAL CHARACTERISTICS to 5.5 V (Unless otherwise noted). Typical values are referenced to T Symbol Parameter S−WIRE INTERFACE (see Note 9) F Input S−wire Frequency SWF T Enable High Delay Time EHDT T Time to Shunt Down Delay ...
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T SWH Figure 2. S−Wire Logic Diagram Initial Stage / S−Wire CNTL T_Wake up Ton Amplifier On default Off Mode configuration Figure 3. S−Wire / Enable Timing Diagram SWL 90% 10% ...
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TYPICAL OPERATING CHARACTERISTICS 100 200 400 600 Pout (mW) Figure 4. Efficiency vs. Pout 100 Vdd = 2 Vdd = 2.7 V Vdd ...
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TYPICAL OPERATING CHARACTERISTICS 1 Pout = 999 mW 0.1 Pout = 250 mW Pout = 500 mW 0.01 0.001 10 100 1 k FREQUENCY (Hz) Figure 10. THD+N vs. Frequency, Vdd = −10 Vdd = 3.0 V ...
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... General Description The NCP2824 is a Mono class D audio amplifier featuring a preamplifier stage, a PWM stage and an H−Bridge stage with an automatic Gain control circuitry which performs the non clipping function. Non Clipping Function In the presence of an exceeded input signal, when the audio signal is going to be clipped, the gain of the audio amplifier automatically decreases as defined by the AGC operation ...
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... When the current is higher than 2 A, the 2% H−Bridge is positioned in high impedance. When the short 4% circuit is removed or the current is lower, the NCP2824 goes back to normal operation. This protection avoids over 6% current due to a bad assembly (Output shorted together Vdd or to ground) ...
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... Output from microcontroller Single Ended Audio Input BATTERY C1 4.7 mF/6.3 V VDD INP OUTP INN OUTN CNTL PGND AGND U1 NCP2824 Figure 18. Differential Configuration BATTERY C1 4.7 mF/6.3 V VDD INP OUTP INN OUTN CNTL Output PGND AGND from microcontroller U1 NCP2824 Figure 19. Single Ended Configuration http://onsemi.com 11 ...
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... CROWNS OF SOLDER BALLS. MILLIMETERS DIM MIN MAX A 0.540 0.660 A1 0.210 0.270 A2 0.330 0.390 D 1.450 BSC E 1.450 BSC b 0.290 0.340 e 0.500 BSC D1 1.000 BSC E1 1.000 BSC ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative NCP2824/D ...