PDF WM8983 Data sheet ( Hoja de datos )

Número de pieza	WM8983
Descripción	Mobile Multimedia CODEC
Fabricantes	Cirrus Logic
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No Preview Available ! WM8983 Mobile Multimedia CODEC with 1W Speaker Driver DESCRIPTION The WM8983 is a low power, high quality stereo CODEC designed for portable multimedia applications. Highly flexible analogue mixing functions enable new application features, combining hi-fi quality audio with voice communication. The device integrates preamps for stereo differential mics, and includes drivers for speaker, headphone and differential or stereo line output. External component requirements are reduced as no separate microphone or headphone amplifiers are required. Advanced on-chip digital signal processing includes a 5-band equaliser, a mixed signal Automatic Level Control for the microphone or line input through the ADC as well as a purely digital limiter function for record or playback. A programmable high pass filter in the ADC path is provided for wind noise reduction and an IIR with programmable coefficients can be used as a notch filter to suppress fixed-frequency noise. The WM8983 digital audio interface can operate in master or slave mode, while an integrated PLL supports flexible clocking schemes. A-law and -law companding are fully supported. The WM8983 operates at analogue supply voltages from 2.5V to 3.3V, although the digital core can operate at voltages down to 1.71V to save power. Speaker supplies can operate up to 5V for increased speaker output power. Additional power management control enables individual sections of the chip to be powered down under software control. FEATURES Stereo CODEC:  DAC SNR 98dB, THD -84dB (‘A’ weighted @ 48kHz)  ADC SNR 95dB, THD -84dB (‘A’ weighted @ 48kHz)  Speaker driver (1W into 8 BTL with 5V supply) - SNR 90dB - PSRR 80dB  Headphone driver with ‘capless’ option - 40mW/channel output power into 16 / 3.3V AVDD2  Pop and click suppression Mic Preamps:  Stereo Differential or mono microphone Interfaces  Programmable preamp gain  Pseudo differential inputs with common mode rejection  Programmable ALC / Noise Gate in ADC path  Low-noise bias supplied for electret microphones Other Features:  Enhanced 3-D function for improved stereo separation  Highly flexible mixing functions  5-band equaliser (ADC or DAC path)  ADC Programmable high pass filter (wind noise reduction)  ADC Programmable IIR notch filter  Aux inputs for stereo analog input signals or ‘beep’  PLL supporting various clocks between 8MHz-50MHz  Sample rates supported (kHz): 8, 11.025, 16, 12, 16, 22.05, 24, 32, 44.1, 48  2.5V to 3.6V analogue supplies  1.71V to 3.6V digital supplies  2.5V to 5.5V speaker supplies  5x5mm 32-lead QFN package APPLICATIONS  Multimedia mobile phones http://www.cirrus.com Copyright  Cirrus Logic, Inc., 2005–2015 (All Rights Reserved) Rev 4.5 FEB ‘15 1 page PIN CONFIGURATION 32 31 30 29 28 27 26 25 LIP 1 LIN 2 L2/GPIO2 3 RIP 4 RIN 5 R2/GPIO3 6 LRC 7 BCLK 8 TOP VIEW 24 AGND2 23 ROUT2 22 OUT3 21 OUT4 20 AUXR 19 AUXL 18 MODE 17 SDIN 9 10 11 12 13 14 15 16 WM8983 ORDERING INFORMATION ORDER CODE WM8983GEFL/V TEMPERATURE RANGE -25C to +85C WM8983GEFL/RV -25C to +85C Note: Reel quantity = 3,500 PACKAGE 32-lead QFN (5 x 5 mm) (pb-free) 32-lead QFN (5 x 5 mm) (pb-free, tape and reel) MOISTURE SENSITIVITY LEVEL MSL3 MSL3 PEAK SOLDERING TEMPERATURE 260oC 260oC Rev 4.5 5 5 Page WM8983 Test Conditions DCVDD=1.8V, AVDD1=AVDD2=DBVDD=3.3V, TA = +25oC, 1kHz signal, fs = 48kHz, 24-bit audio data unless otherwise stated. PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX DAC to OUT3 and OUT4 mixers to OUT3/OUT4 outputs into 10k / 50pF load. DACLVOL and DACRVOL = 0dB Full-scale output voltage AVDD2/3.3 Signal to Noise Ratio 3 SNR A-weighted 101.5 AVDD1=AVDD2=3.3V Total Harmonic Distortion 4 THD full-scale signal -80 AVDD1=AVDD2=3.3V full-scale signal -87 AVDD1=AVDD2=2.5V Total Harmonic Distortion + Noise 5 THD+N full-scale signal -77 AVDD1=AVDD2=3.3V full-scale signal -85 AVDD1=AVDD2=2.5V Channel Separation 6 1kHz signal DAC to left and right mixer into headphone (16Ω load) on LOUT2 and ROUT2 100 LOUT2VOL, ROUT2VOL, DACLVOL and DACRVOL = 0dB Full-scale output AVDD1/3.3 Signal to Noise Ratio 3 SNR A-weighted 98 AVDD1=AVDD2=3.3V Total Harmonic Distortion 4 THD Po = 20mW, RL=16Ω -76 UNIT Vrms dB dBFS dBFS dBFS dBFS dBFS Vrms dB dBFS Total Harmonic Distortion + Noise 5 THD+N Po = 20mW, RL=16Ω -72 dBFS Channel Separation 6 1kHz signal Bypass paths to left and right output mixers. BYPL2LMIX = 1 and BYPR2RMIX = 1 PGA gain range into mixer Gain adjusted by BYPLMIXVOL and BYPRMIXVOL -15 BYPLMIXVOL and BYPRMIXVOL gain step into mixer Mute attenuation BYPL2LMIX = 0 BYPR2RMIX = 0 Analogue outputs (LOUT1, ROUT1, LOUT2, ROUT2) Programmable Gain range Gain adjusted by L/ROUT1VOL and L/ROUT2VOL -57 Programmable Gain step size Guaranteed monotonic Mute attenuation 1kHz, full scale signal L/ROUT1MUTE = 1 L/ROUT2MUTE = 1 100 0 3 100 0 1 85 +6 +6 dB dB dB dB dB dB dB Rev 4.5 11 11 Page

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