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PCM1770 Datasheet(PDF) 3 Page - Texas Instruments |
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PCM1770 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 38 page www.ti.com ELECTRICAL CHARACTERISTICS PCM1770, PCM1771 SLES011E – SEPTEMBER 2001 – REVISED MARCH 2007 all specifications at T A = 25°C, VCC = VHP = 2.4 V, fS = 44.1 kHz, system clock = 256 fS and 24-bit data, RL = 16 Ω, unless otherwise noted PCM1770PW, PCM1771PW, PCM1770RGA, PCM1771RGA PARAMETER TEST CONDITIONS UNIT MIN TYP MAX Resolution 24 Bits OPERATING FREQUENCY Sampling frequency (fS) 5 50 kHz System clock frequency 128f S, 192 fS, 256 fS, 384 fS DIGITAL INPUT/OUTPUT(1)(2) Logic family CMOS compatible VIH 0.7 VCC VDC Input logic level VIL 0.3 VCC VDC IIH VIN = VCC 10 µA Input logic current IIL VIN = 0 V –10 µA VOH IOH = –2 mA 0.7 VCC VDC Output logic level(3) VOL IOL = 2 mA 0.3 VCC VDC DYNAMIC PERFORMANCE (HEADPHONE OUTPUT) Full-scale output voltage 0 dB 0.55 VHP Vp-p Dynamic range EIAJ, A-weighted 90 98 dB Signal-to-noise ratio EIAJ, A-weighted 90 98 dB 0 dB (13 mW) 0.1% THD+N Total harmonic distortion + noise –20 dB (0.1 mW) 0.04% 0.1% Stereo 10 13 mWrms Output power Monaural 20 26 mWrms Channel separation 64 72 dB Load resistance 14 16 Ω DC ACCURACY Gain error ±2 ±8 %FSR Gain mismatch, ±2 ±8 %FSR channel-to-channel Bipolar zero error VOUT = 0.5 VCC at BPZ ±30 ±75 mV ANALOG LINE INPUT (MIXING CIRCUIT) Analog input voltage range 0.584 VHP Vp-p Gain (analog input to headphone 0.67 output) Analog input impedance 10 k Ω THD+N Total harmonic distortion + noise AIN = 0.56 VHP (peak-to-peak) 0.1% DIGITAL FILTER PERFORMANCE Pass band 0.454 fS Stop band 0.546 fS Pass-band ripple ±0.04 dB Stop-band attenuation –50 dB Group 20/fS delay 44.1-kHz de-emphasis error ±0.1 dB ANALOG FILTER PERFORMANCE (1) Digital inputs and outputs are CMOS compatible. (2) All logic inputs are 3.3-V tolerant and not terminated internally. (3) LRCK and BCK terminals 3 Submit Documentation Feedback |
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