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TWL1103 Datasheet(PDF) 9 Page - Texas Instruments |
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TWL1103 Datasheet(HTML) 9 Page - Texas Instruments |
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9 / 29 page  TWL1103 VOICE-BAND AUDIO PROCESSOR (VBAP ™) SLVS259 – NOVEMBER 1999 9 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics at 2.7 V and 25 ° C (unless otherwise noted) (continued) transmit filter transfer, companded mode ( µ-law or A-law) or linear mode selected, transmit slope filter selected (MCLK = 2.048 MHz) (see Note 11) 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 1000 Hz with slope filter selected fMIC1 or fMIC2 = 1000 Hz 0 dB Gain relative to input signal gain at 1000 Hz, 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 11: The pass-band tolerance is ± 0.25 dB from 300 Hz to 3500 Hz. transmit idle channel noise and distortion, companded mode ( µ-law or A-law) selected, slope filter bypassed PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Transmit idle channel noise, psophometrically weighted TXPGA gain= 0 dB, micamp 1 gain = 23.5 dB, micamp 2 gain = 0 dB –86.6 –78 dBm0p MIC1N, MIC1P to PCMO at 3 dBm0 27 MIC1N, MIC1P to PCMO at 0 dBm0 30 MIC1N, MIC1P to PCMO at –5 dBm0 33 Transmit signal-to-distortion ratio with MIC1N, MIC1P to PCMO at –10 dBm0 36 dB g 1020-Hz sine-wave input MIC1N, MIC1P to PCMO at –20 dBm0 35 dB MIC1N, MIC1P to PCMO at – 30 dBm0 26 MIC1N, MIC1P to PCMO at – 40 dBm0 24 MIC1N, MIC1P to PCMO at – 45 dBm0 19 Intermodulation distortion, 2-tone CCITT method, CCITT G.712 (7.1), R2 49 dB ,, composite power level, –13 dBm0 CCITT G.712 (7.2), R2 51 dB |
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