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TLV320AIC3253 Datasheet(PDF) 7 Page - Texas Instruments |
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TLV320AIC3253 Datasheet(HTML) 7 Page - Texas Instruments |
7 / 35 page TLV320AIC3253 www.ti.com SLOS631 – MARCH 2010 Electrical Characteristics, Bypass Outputs At 25°C, AVdd, DVdd, IOVDD = 1.8V, LDO_in = 1.8V, AVdd LDO disabled, fs (Audio) = 48kHz, Cref = 10 mF on REF PIN, PLL disabled unless otherwise noted. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ANALOG BYPASS TO HEADPHONE AMPLIFIER, DIRECT MODE Load = 16 Ω (single-ended), 50pF; Input and Output CM=0.9V; Device Setup Headphone Output on LDOIN Supply; INL routed to HPL and INR routed to HPR; Channel Gain=0dB Gain Error ±0.4 dB Noise, A-weighted(1) Idle Channel, INL and INR ac-shorted to 3 mVRMS ground THD Total Harmonic Distortion 446mVrms, 1-kHz input signal –82 dB (1) All performance measurements done with 20-kHz low-pass filter and, where noted, A-weighted filter. Failure to use such a filter may result in higher THD+N and lower SNR and dynamic range readings than shown in the Electrical Characteristics. The low-pass filter removes out-of-band noise, which, although not audible, may affect dynamic specification values Electrical Characteristics, Microphone Interface At 25°C, AVdd, DVdd, IOVDD = 1.8V, LDO_in = 1.8V, AVdd LDO disabled, Cref = 10 mF on REF PIN, PLL disabled unless otherwise noted. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT MICROPHONE BIAS Bias voltage Bias voltage CM=0.9V, LDOin = 3.3V, no load Micbias Mode 0, Connect to AVdd or LDOin 1.25 V Micbias Mode 1, Connect to LDOin 1.7 V Micbias Mode 2, Connect to LDOin 2.5 V Micbias Mode 3, Connect to AVdd AVdd V Micbias Mode 3, Connect to LDOin LDOin V CM=0.75V, LDOin = 3.3V Micbias Mode 0, Connect to AVdd or LDOin 1.04 V Micbias Mode 1, Connect to AVdd or LDOin 1.42 V Micbias Mode 2, Connect to LDOin 2.08 V Micbias Mode 3, Connect to AVdd AVdd V Micbias Mode 3, Connect to LDOin LDOin V Output Noise CM=0.9V, Micbias Mode 2, A-weighted, 20Hz 10 to 20kHz bandwidth, mVRMS Current load = 0mA. Current Sourcing Micbias Mode 2, Connect to LDOin 3 mA Micbias Mode 3, Connect to AVdd 160 Inline Resistance Ω Micbias Mode 3, Connect to LDOin 110 Copyright © 2010, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Link(s): TLV320AIC3253 |
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