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PDF WM8983 Data sheet ( Hoja de datos )
| Número de pieza | WM8983 | |
| Descripción | Mobile Multimedia CODEC | |
| Fabricantes | Wolfson Microelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de WM8983 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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WM8983
Mobile Multimedia CODEC with 1W Speaker Driver
DESCRIPTION
FEATURES
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.
Stereo CODEC:
• DAC SNR 98dB, THD -84dB (‘A’ weighted @ 48kHz)
• ADC SNR 95dB, THD -84dB (‘A’ weighted @ 48kHz)
• Speaker driver (1W into 8Ω BTL with 5V supply)
• SNR 90dB
• PSRR 80dB
• Headphone driver with ‘capless’ option
• 40mW/channel output power into 16Ω / 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
The WM8983 digital audio interface can operate in master or Other Features:
slave mode, while an integrated PLL supports flexible clocking • Enhanced 3-D function for improved stereo separation
schemes. A-law and µ-law companding are fully supported.
• Highly flexible mixing functions
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• 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
WOLFSON MICROELECTRONICS plc
To receive regular email updates, sign up at http://www.wolfsonmicro.com/enews/
Production Data, November 2006, Rev 4.0
Copyright ©2006 Wolfson Microelectronics plc
1 page  
Production Data
PIN CONFIGURATION
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
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PD Rev 4.0 November 2006
5
5 Page 
Production Data
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
Total Harmonic Distortion 4
SYMBOL
TEST CONDITIONS
MIN
TYP
THD
full-scale signal
-80
MAX
UNIT
dBFS
AVDD1=AVDD2=3.3V
full-scale signal
-87 dBFS
Total Harmonic Distortion + Noise 5
THD+N
AVDD1=AVDD2=2.5V
full-scale signal
-77
dBFS
AVDD1=AVDD2=3.3V
full-scale signal
-85 dBFS
Channel Separation 6
AVDD1=AVDD2=2.5V
1kHz signal
100
dBFS
DAC to left and right mixer into headphone (16Ω load) on LOUT2 and ROUT2
LOUT2VOL, ROUT2VOL, DACLVOL and DACRVOL = 0dB
Full-scale output
Signal to Noise Ratio 3
SNR
A-weighted
AVDD1/3.3
98
Vrms
dB
Total Harmonic Distortion 4
THD
AVDD1=AVDD2=3.3V
Po = 20mW, RL=16Ω
-76
dBFS
Total Harmonic Distortion + Noise 5
THD+N
Po = 20mW, RL=16Ω
-72
dBFS
Channel Separation 6
1kHz signal
100
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
0
3
100
Analogue outputs (LOUT1, ROUT1, LOUT2, ROUT2)
Programmable Gain range
Programmable Gain step size
Gain adjusted by
L/ROUT1VOL and
L/ROUT2VOL
Guaranteed
-57
0
1
Mute attenuation
1kHz, full scale signal
L/ROUT1MUTE = 1
L/ROUT2MUTE = 1
85
LIN and RIN input PGA to input boost stage into 10kΩ / 50pF load on OUT3/OUT4 outputs
INPPGAVOLL, INPPGAVOLR, PGABOOSTL and PGABOOSTR = 0dB
Full-scale output voltage, 0dB gain
Signal to Noise Ratio 3
SNR
A-weighted
AVDD1=AVDD2=3.3V
AVDD2/3.3
90 98
A-weighted
AVDD1=AVDD2=2.5V
96
22Hz to 22kHz
AVDD1=AVDD2=3.3V
95.5
Total Harmonic Distortion 4
THD
22Hz to 22kHz
AVDD1=AVDD2=2.5V
full-scale signal
AVDD1=AVDD2=3.3V
93.5
-84
Total Harmonic Distortion + Noise 5
THD+N
full-scale signal
AVDD1=AVDD2=2.5V
full-scale signal
AVDD1=AVDD2=3.3V
-82
-82
full-scale signal
-80
+6
+6
dB
dB
dB
dB
dB
dB
dB
Vrms
dB
dB
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
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PD Rev 4.0 November 2006
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet WM8983.PDF ] | |
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