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TPA2050D4YZKT Scheda tecnica(PDF) 7 Page - Texas Instruments |
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TPA2050D4YZKT Scheda tecnica(HTML) 7 Page - Texas Instruments |
7 / 29 page OPERATING CHARACTERISTICS TPA2050D4 www.ti.com....................................................................................................................................................................................................... SLOS544 – JULY 2008 VDD = 3.6 V, TA = 25°C, RSPEAKER = 8 Ω + 33 µH, RHEADPHONES = 16 Ω, Volume = 6 dB, HP Gain = 0 dB, MODE[2:0] = 001 (single-ended mode)(unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT POWER AMPLIFIER THD = 1%, VDD = 3.6 V, f = 1 kHz 700 mW PO Speaker output power THD = 10%, VDD = 3.6 V, f = 1 kHz 860 mW THD = 1%, VDD = 4.2 V, f = 1 kHz 940 mW VOS Offset Voltage VDD = 5.5 V, Volume = 0 dB -13 5 13 mV Output impedance in shutdown 2 k Ω SNR Signal-to-noise ratio PO = 600 mW; 90 dB En Noise output voltage Volume = 0 dB; A-weighted 19.4 µV RMS VDD = 5.0 V, PO = 1 W, f = 1 kHz 0.22 % THD+N Total harmonic distortion plus noise VDD = 3.6 V, PO = 0.6 W, f = 1 kHz 0.27 % 200 mVpp ripple, f = 217 Hz, Volume = 0 dB -77.7 dB kSVR AC-Power supply rejection ratio 200 mVpp ripple, f = 4 kHz, Volume = 0 dB -60.3 dB Threshold 155 °C Thermal shutdown Hysteresis 35 °C Output short-circuit protection 2.4 A fCLK Class-D switching frequency 250 300 350 kHz ΔAV Gain matching Between left and right channels 0.1 dB HEADPHONE AMPLIFIER THD = 1%, VDD = 5.0 V, HP_Vout[2:0] = 000 145 Headphone output power(1) PO mW (Outputs in Phase) THD = 1%, VDD = 3.0 V, HP_Vout[2:0] = 000 79 THD = 10 %, HP_VOUT[2:0] = 111 0.14 VO Maximum headphone output voltage VRMS THD = 10 %, HP_VOUT[2:0] = 100 0.23 VOS Offset Voltage VDD = 5.5 V, Volume = 0 dB -3.5 0.5 3.5 mV Output impedance in shutdown 30 Ω SNR Signal-to-noise ratio PO = 50 mW; 90 dB En Noise output voltage Volume = 0 dB; A-weighted, VDD = 5.0 V 12 µV RMS PO = 20 mW into 16 Ω, VDD = 3.6 V, f = 1 kHz 0.005 % THD+N Total harmonic distortion plus noise(1) PO = 50 mW into 32 Ω, VDD = 5.0 V, f = 1 kHz 0.0067 % 200 mVpp ripple, f = 217 Hz, Volume = 0 dB -78.5 dB kSVR AC-Power supply rejection ratio 200 mVpp ripple, f = 4 kHz, Volume = 0 dB -75.6 dB Output short-circuit protection 200 mA fOSC Charge pump switching frequency 300 kHz ΔAV Gain matching Between Left and Right channels 0.1 dB INPUT SECTION RIN Input impedance Volume = 12 dB 11 14.7 k Ω VREF Reference voltage VDD = 3.6 V, all active modes 1.65 V Start-up time from shutdown 8.25 ms (1) Per output channel Copyright © 2008, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Link(s): TPA2050D4 |
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