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TWL1110 Datasheet(PDF) 11 Page - Texas Instruments |
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TWL1110 Datasheet(HTML) 11 Page - Texas Instruments |
11 / 37 page TWL1110 VOICE-BAND AUDIO PROCESSOR (VBAP ™) SLWS103 – NOVEMBER 2000 11 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended ranges of supply voltage and free-air temperature (unless otherwise noted) (continued) transmit filter transfer, companded mode ( µ-law or A-law) or linear mode selected, transmit slope filter bypassed (MCLK = 2.048 MHz) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT fMIC1 or fMIC2 <100 Hz – 0.5 0.5 fMIC1 or fMIC2 = 200 Hz – 0.5 0.5 G i l ti t i t i l i t 1020 H i t l hi h fMIC1 or fMIC2 = 300 Hz to 3 kHz – 0.5 0.5 Gain relative to input signal gain at 1020 Hz, internal high-pass filter disabled fMIC1 or fMIC2 = 3.4 kHz – 1.5 0 dB filter disabled fMIC1 or fMIC2 = 4 kHz –14 dB fMIC1 or fMIC2 = 4.6 kHz –35 fMIC1 or fMIC2 = 8 k Hz –47 Gain relative to input signal gain at 1020 Hz, internal high-pass fMIC1 or fMIC2 <100 Hz –15 dB Gain relative to in ut signal gain at 1020 Hz, internal high ass filter enabled fMIC1 or fMIC2 = 200 Hz –5 dB transmit filter transfer, companded mode ( µ-law or A-law) or linear mode selected, transmit slope filter selected, transmit high-pass filter enabled (MCLK = 2.048 MHz) (see Note 9) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT fMIC1 or f MIC2 =100 Hz –27 dB fMIC1 or fMIC2 = 200 Hz –8 dB fMIC1 or fMIC2 = 250 Hz –4 dB fMIC1 or fMIC2 = 300 Hz –1.80 dB fMIC1 or fMIC2 = 400 Hz –1.50 dB fMIC1 or fMIC2 = 500 Hz –1.30 dB fMIC1 or fMIC2 = 600 Hz –1.1 dB fMIC1 or fMIC2 = 700 Hz – 0.8 dB fMIC1 or fMIC2 = 800 Hz – 0.57 dB fMIC1 or fMIC2 = 900 Hz – 0.25 dB Gain relative to input signal gain at 1 02 kHz with slope filter selected fMIC1 or fMIC2 = 1000 Hz 0 dB Gain relative to input signal gain at 1.02 kHz, with slope filter selected fMIC1 or fMIC2 = 1500 Hz 1.8 dB fMIC1 or fMIC2 = 2000 Hz 4.0 dB fMIC1 or fMIC2 = 2500 Hz 6.5 dB fMIC1 or fMIC2 = 3000 Hz 7.6 dB fMIC1 or fMIC2 = 3100 Hz 7.7 dB fMIC1 or fMIC2 = 3300 Hz 8.0 dB fMIC1 or fMIC2 = 3500 Hz 6.48 dB fMIC1 or fMIC2 = 4000 Hz –13 dB fMIC1 or fMIC2 = 4500 Hz –35 dB fMIC1 or fMIC2 = 5000 Hz –45 dB fMIC1 or fMIC2 = 8000 Hz –50 dB NOTE 9: The pass-band tolerance is ±0.25 dB from 300 Hz to 3500 Hz. |
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