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TAS2505TRGERQ1 Datasheet(PDF) 7 Page - Texas Instruments |
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TAS2505TRGERQ1 Datasheet(HTML) 7 Page - Texas Instruments |
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7 / 35 page  7 TAS2505-Q1 www.ti.com SLASEI9 – JUNE 2017 Product Folder Links: TAS2505-Q1 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Electrical Characteristics (continued) At 25°C, AVDD = 1.8V, IOVDD = 1.8 V, SPKVDD = 3.6 V, DVDD = 1.8 V, fS (audio) = 48 kHz, CODEC_CLKIN = 256 × fS, PLL = Off PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ANALOG BYPASS TO CLASS-D SPEAKER AMPLIFIER Device setup BTL measurement, driver gain = 6 dB, load = 4 Ω (differential), 50 pF, input signal frequency fi = 1 KHz Voltage gain Input common-mode = 0.9 V 4 V/V Gain error –1 dBFS (446 mVrms), 1-kHz input signal ±0.7 dB ICN Idle channel noise Idle channel, IN1L and IN1R ac-shorted to ground, measured as idle-channel noise, A-weighted(1) (2) 32.6 μVms THD+N Total harmonic distortion + noise –1 dBFS (446 mVrms), 1-kHz input signal –73.7 dB LOW DROPOUT REGULATOR (AVDD) AVDD output voltage 1.8 V SPKVDD = 2.7 V, page 1, reg 2, D5-D4 = 00, IO = 50 mA 1.79 V SPKVDD = 3.6 V, page 1, reg 2, D5-D4 = 00, IO = 50 mA 1.79 V SPKVDD = 5.5 V, page 1, reg 2, D5-D4 = 00, IO = 50 mA 1.79 V Output voltage accuracy SPVDD = 2.7 V ±2 % Load regulation SPVDD = 2.7 V, 0 A to 50 mA 7 mV Line regulation Input supply range 2.7 V to 5.5 V 0.6 mV Decoupling capacitor 1.0 uF Bias current 55 uA Noise at 0-A load A-weighted, 20-Hz to 20-kHz bandwidth 166 uV Noise at 50-mA load A-weighted, 20-Hz to 20-kHz bandwidth 174 uV SHUTDOWN POWER CONSUMPTION Device setup Power down POR, /RST held low, AVDD = 1.8V, IOVDD = 1.8 V, SPKVDD = 4.2 V, DVDD = 1.8 V I(AVDD) 1.32 µA I(DVDD) 0.04 µA I(IOVDD) 0.68 µA I(SPKVDD) 2.24 µA DIGITAL INPUT/OUTPUT Logic family CMOS VIH Logic level IIH = 5 μA, IOVDD ≥ 1.6 V 0.7 × IOVDD V IIH = 5 μA, IOVDD < 1.6 V IOVDD VIL IIL = 5 μA, IOVDD ≥ 1.6 V –0.3 0.3 × IOVDD V IIL = 5 μA, IOVDD < 1.6 V 0 VOH IOH = 2 TTL loads 0.8 × IOVDD V VOL IOL = 2 TTL loads 0.25 V Capacitive load 10 pF |
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