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TS4974 Datasheet(PDF) 7 Page - STMicroelectronics |
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TS4974 Datasheet(HTML) 7 Page - STMicroelectronics |
7 / 25 page TS4974 Electrical characteristics 7/25 Table 6. VCC = +2.6V, GND = 0V, Tamb = 25°C (unless otherwise specified) Symbol Parameter Min. Typ. Max. Unit ICC Supply current No input signal, no load 2.8 3.4 mA ISTBY Standby current No input signal, VSTBY = GND, RL = 8 Ω 230 2000 nA IU/D Volume control UP/DOWN current 0 ≤ VU/D ≤ 0.3 VCC 10 μA Voo Output offset voltage No input signal, RL = 8 Ω, G = 0 dB, floating inputs 520 mV Po Output power THD = 1% max, f = 1 kHz, RL = 8 Ω 200 250 mW THD + N Total harmonic distortion + noise Po = 500 mW rms, 20 Hz < F < 20 kHz, RL = 8 Ω, G = 0 dB, Cb= 1 µF, Cin= 330 nF 0.5 % PSRR Power supply rejection ratio(1) F = 217 Hz, RL = 8 Ω Vripple = 200 mVpp, input grounded, Cb= 1 µF, Cin= 330 nF, G= 0 dB 85 dB CMRR Common mode rejection ratio(2) F = 217 Hz, RL = 8 Ω, Vincm = 200 mVpp, Cb = 1 µF, Cin= 330 nF, G= 0 dB 61 dB SNR Signal-to-noise ratio (weighted A, G = 0 dB) (RL = 8 Ω, THD + N ≤ 0.5%, 20 Hz < F < 20 kHz) 100 dB Gs Start up gain ( when powered up from VCC - see Section 4.9: Volume setting on page 20) -12 dB G Gain range -33 +12 dB Gain step size 3dB Gain accuracy Tolerance between theoretical gain set and real gain -1 +1 dB twu Wake-up time Cb=1 µF 10 ms VN Output voltage noise F = 20 Hz to 20 kHz, RL = 8 Ω, G = 0 dB Unweighted A-weighted 21 14 µVRMS Zin Differential input impedance 48 60 75 k Ω tdebounce Debouncing time 10 ms tautorepeat Time between volume changes 220 ms trange During autorepeat mode, necessary time to cover the whole gain range 3200 ms 1. Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is an added sinus signal to VCC @ F = 217 Hz. 2. Dynamic measurements - 20*log(rms(Vout)/rms(Vincm)). |
Similar Part No. - TS4974_07 |
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Similar Description - TS4974_07 |
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