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WM8980 Datasheet(PDF) 7 Page - Wolfson Microelectronics plc |
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WM8980 Datasheet(HTML) 7 Page - Wolfson Microelectronics plc |
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7 / 123 page  Pre-Production WM8980 w PP, Rev 3.8, May 2012 7 ELECTRICAL CHARACTERISTICS Test Conditions DCVDD=1.8V, AVDD=DBVDD=SPKVDD=VBVDD = 3.3V, TA = +25 oC, 1kHz signal, fs = 48kHz, 24-bit audio data unless otherwise stated. PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Microphone Preamp Inputs (LIP, LIN, RIP, RIN, L2, R2) Full-scale Input Signal Level – note this changes in proportion to AVDD (Note 1) VINFS PGABOOST = 0dB INPPGAVOL = 0dB 1.0 0 Vrms dBV Mic PGA equivalent input noise At 35.25dB gain 0 to 20kHz 150 uV Input resistance RMICIN Gain set to 35.25dB 1.6 k RMICIN Gain set to 0dB 47 k RMICIN Gain set to -12dB 75 k RMICIP L/RIP2INPPGA = 1 94 k CMICIN 10 pF MIC Programmable Gain Amplifier (PGA) Maximum Programmable Gain 35.25 dB Minimum Programmable Gain -12 dB Programmable Gain Step Size Guaranteed monotonic 0.75 dB Mute Attenuation 120 dB Selectable Input Gain Boost (0/+20dB) Gain Boost on PGA input Boost disabled 0 dB Boost enabled 20 dB Maximum Gain from AUXL/R or L/R2 input to boost/mixer +6 dB Minimum Gain from AUXL/R or L/R2 input to boost/mixer -12 dB Gain step size to boost/mixer Guaranteed monotonic 3 dB Auxiliary Analogue Inputs (AUXL, AUXR) Full-scale Input Signal Level (0dB) – note this changes in proportion to AVDD VINFS AVDD/3.3 0 Vrms dBV Input Resistance (Note 2) RAUXINLMIN Left Input boost and mixer enabled, at max gain 4.3 k RAUXINLTYP Left Input boost and mixer enabled, at 0dB gain 8.6 k RAUXINLMAX Left Input boost and mixer enabled, at min gain 39.1 k RAUXINRMIN Right Input boost, mixer and beep enabled, at max gain 3 k RAUXINRTYP Right Input boost, mixer and beep enabled, at 0dB gain 6 k RAUXINRMAX Right Input boost, mixer and beep enabled, at min gain 29 k Input Capacitance CMICIN 10 pF |
Similar Part No. - WM8980_12 |
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Similar Description - WM8980_12 |
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