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TS4962IJT データシート(PDF) 8 Page - STMicroelectronics |
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TS4962IJT データシート(HTML) 8 Page - STMicroelectronics |
8 / 22 page TS4962 Electrical Characteristics 8/22 Table 7. VCC = +2.5V, GND = 0V, VICM = 1.25V, Tamb = 25°C (unless otherwise specified) Symbol Parameter Min. Typ. Max. Unit ICC Supply Current No input signal, no load 1.7 2.4 mA ISTANDBY Standby Current 1 No input signal, VSTBY = GND 10 1000 nA Voo Output Offset Voltage No input signal, RL = 8Ω 325 mV Po Output Power, G=6dB THD = 1% Max, f = 1kHz, RL = 4Ω THD = 10% Max, f = 1kHz, RL = 4Ω THD = 1% Max, f = 1kHz, RL = 8Ω THD = 10% Max, f = 1kHz, RL = 8Ω 0.52 0.71 0.33 0.42 W THD + N Total Harmonic Distortion + Noise Po = 200 mWRMS, G = 6dB, 20Hz < f < 20kHz, RL = 8Ω + 15µH, BW < 30kHz Po = 200mWRMS, G = 6dB, f = 1kHz, RL = 8Ω + 15µH, BW < 30kHz 1 0.19 % Efficiency Efficiency Po = 0.47 WRMS, RL = 4Ω + ≥ 15µH Po = 0.3 WRMS, RL = 8Ω+ ≥ 15µH 78 88 % PSRR Power Supply Rejection Ratio with inputs grounded 2 f = 217Hz, RL = 8Ω, G=6dB, Vripple = 200mVpp 60 dB CMRR Common Mode Rejection Ratio f = 217Hz, RL = 8Ω, G = 6dB, ∆Vic = 200mVpp 54 dB Gain Gain value (Rin in kΩ) V/V RSTDBY Internal Resistance From Standby to GND 273 300 327 k Ω FPWM Pulse Width Modulator Base Frequency 180 250 320 kHz SNR Signal to Noise ratio (A Weighting), Po = 0.4W, RL = 8Ω 80 dB TWU Wake-up time 510ms TSTB Standby time 510ms VN Output Voltage Noise f = 20Hz to 20kHz, G = 6dB Unweighted RL = 4Ω A weighted RL = 4Ω Unweighted RL = 8Ω A weighted RL = 8Ω Unweighted RL = 4Ω + 15µH A weighted RL = 4Ω + 15µH Unweighted RL = 4Ω + 30µH A weighted RL = 4Ω + 30µH Unweighted RL = 8Ω + 30µH A weighted RL = 8Ω + 30µH Unweighted RL = 4Ω + Filter A weighted RL = 4Ω + Filter Unweighted RL = 4Ω + Filter A weighted RL = 4Ω + Filter 85 60 86 62 76 56 82 60 67 53 78 57 74 54 78 59 µVRMS 1) Standby mode is actived when Vstdby is tied to GND. 2) Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the surimposed sinus signal to Vcc @ f = 217Hz. 273k Ω R in ------------------ 300 k Ω R in ------------------ 327k Ω R in ------------------ |
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