|
|
Número de pieza | XWM8734 | |
Descripción | Stereo Audio CODEC | |
Fabricantes | Wolfson | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de XWM8734 (archivo pdf) en la parte inferior de esta página. Total 46 Páginas | ||
No Preview Available ! w
Stereo Audio CODEC
WM8734
DESCRIPTION
The WM8734 is a low power stereo CODEC ideal for MD,
CD-RW machines and DAT recording applications.
Stereo line inputs are provided, along with a mute function
and programmable line level volume control.
Stereo 24-bit multi-bit sigma delta ADCs and DACs are
used with oversampling digital interpolation and decimation
filters.
Digital audio input word lengths from 16-32 bits and
sampling rates from 8kHz to 96kHz are supported.
Stereo audio line level outputs are provided along with anti-
thump mute and power up/down circuitry.
The device is controlled via a 2 or 3 wire serial interface.
The interface provides access to all features including level
controls, mutes, de-emphasis and power management
facilities. The device is available in 20-lead SSOP or 28-
lead, 5x5mm QFN packages.
FEATURES
• Audio Performance
− 90dB SNR (‘A’ weighted @ 48kHz) ADC
− 100dB SNR (‘A’ weighted @ 48kHz) DAC
− 2.7 – 3.6V Digital Supply Operation
− 2.7 – 3.6V Analogue Supply Operation
• ADC and DAC Sampling Frequency: 8kHz – 96kHz
• Selectable ADC High Pass Filter
• 2 or 3-Wire MPU Serial Control Interface
• Programmable Audio Data Interface Modes
− I2S, Left, Right Justified or DSP
− 16/20/24/32 bit Word Lengths
− Master or Slave Clocking Mode
• Stereo Audio Inputs and Outputs
• 20-lead SSOP or 5x5mm QFN Package Options
APPLICATIONS
• CD and Minidisc Recorder
• MP3 Player / Recorder
BLOCK DIAGRAM
AVDD
VMID
AGND
RLINEIN
LLINEIN
CONTROL INTERFACE
W
WM8734
VOL
+12 to -34.5dB,
1.5dB Steps
VOL
+12 to -34.5dB,
1.5dB Steps
CLKIN
DIVIDER
(Div x1, x2)
ADC
ADC
DIGITAL
FILTERS
DAC
MUTE
DAC
MUTE
DIGTAL AUDIO INTERFACE
ROUT
LOUT
WOLFSON MICROELECTRONICS plc
To receive regular email updates, sign up at http://www.wolfsonmicro.com/enews/
Production Data, November 2006, Rev 4.1
Copyright 2006 Wolfson Microelectronics plc
Free Datasheet http://www.datasheet4u.com/
1 page WM8734
PIN CONFIGURATION – QFN
Production Data
TOP VIEW
ORDERING INFORMATION - QFN
DEVICE
WM8734SEFL
TEMPERATURE
RANGE
-25 to +85oC
WM8734SEFL/R
-25 to +85oC
Note:
Reel quantity = 3,500
PACKAGE
28-lead QFN
(5x5x0.9mm)
(Pb-free)
28-lead QFN
(5x5x0.9mm)
(Pb-free, tape and reel)
MOISTURE
SENSITIVITY LEVEL
MSL 1
MSL 1
PEAK SOLDERING
TEMPERATURE
260°C
260°C
w
PD Rev 4.1 November 2006
5
Free Datasheet http://www.datasheet4u.com/
5 Page WM8734
MASTER CLOCK TIMING
MCLK
t MCLKL
t MCLKH
t MCLKY
Production Data
Figure 1 System Clock Timing Requirements
Test Conditions
AVDD, DBVDD = 3.3V, AGND = 0V, DCVDD = 3.3V, DGND = 0V, TA = +25oC, Slave Mode, fs = 48kHz, MCLK = 256fs unless
otherwise stated.
PARAMETER
SYMBOL
System Clock Timing Information
MCLK System clock pulse width high
TXTIH
MCLK System clock pulse width low
TXTIL
MCLK System clock cycle time
TXTIY
MCLK Duty cycle
TEST CONDITIONS
MIN
18
18
54
40:60
TYP MAX UNIT
60:40
ns
ns
ns
DIGITAL AUDIO INTERFACE – MASTER MODE
BCLK
ADCLRC
WM8734
CODEC DACLRC
ADCDAT
DACDAT
DSP
ENCODER/
DECODER
Figure 2 Master Mode Connection
w
PD Rev 4.1 November 2006
11
Free Datasheet http://www.datasheet4u.com/
11 Page |
Páginas | Total 46 Páginas | |
PDF Descargar | [ Datasheet XWM8734.PDF ] |
Número de pieza | Descripción | Fabricantes |
XWM8731EDS | Portable Internet Audion CODEC with Headphone Driver and Programmable Sample Rates | Wolfson Microelectronics plc |
XWM8733ED | 102dB Stereo DAC | Wolfson Microelectronics plc |
XWM8734 | Stereo Audio CODEC | Wolfson |
Número de pieza | Descripción | Fabricantes |
SLA6805M | High Voltage 3 phase Motor Driver IC. |
Sanken |
SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
Analog Devices |
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |