WM8738 PDF даташит
Спецификация WM8738 изготовлена «Wolfson Microelectronics plc» и имеет функцию, называемую «24 BIT STEREO ADC». |
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Детали детали
Номер произв | WM8738 |
Описание | 24 BIT STEREO ADC |
Производители | Wolfson Microelectronics plc |
логотип |
19 Pages
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24-Bit Stereo ADC
WM8738
DESCRIPTION
The WM8738 is a high performance stereo audio ADC
designed for consumer applications.
Stereo line-level audio inputs are provided, along with a
control input pin to allow operation of the audio interface in
either one of two industry standard modes. The device also
has a selectable digital high pass filter to remove residual
DC offsets.
Stereo 24-bit multi-bit sigma delta ADCs are provided, along
with oversampling digital interpolation filters. 24-bit digital
audio output word lengths and sampling rates from 32kHz to
96kHz are supported.
The device is available in a small 14-lead SOIC package.
FEATURES
Audio Performance
- 90 dB SNR (‘A’ weighted @ 48kHz)
3.0 – 5.5V Analogue Supply Operation
3.0 – 3.6V Digital Supply Operation
ADC Sampling Frequency: 32kHz – 96kHz
Selectable ADC High Pass Filter
Selectable Audio Data Interface Modes
- I2S or Left Justified
14-lead SOIC Package
APPLICATIONS
CD and Minidisc Recorders
DVD Players
General Purpose Audio Conversion
BLOCK DIAGRAM
WOLFSON MICROELECTRONICS plc
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Production Data, February 2012, Rev 4.5
Copyright 2012 Wolfson Microelectronics plc
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WM8738
Production Data
TABLE OF CONTENTS
DESCRIPTION....................................................................................................... 1
FEATURES ............................................................................................................ 1
APPLICATIONS..................................................................................................... 1
BLOCK DIAGRAM ................................................................................................ 1
TABLE OF CONTENTS......................................................................................... 2
PIN CONFIGURATION .......................................................................................... 3
ORDERING INFORMATION.................................................................................. 3
PIN DESCRIPTION................................................................................................ 4
ABSOLUTE MAXIMUM RATINGS ........................................................................ 5
RECOMMENDED OPERATING CONDITIONS..................................................... 5
ELECTRICAL CHARACTERISTICS ..................................................................... 6
TERMINOLOGY .............................................................................................................. 7
DIGITAL AUDIO INTERFACE TIMING ................................................................. 8
INTERNAL POWER ON RESET CIRCUIT ............................................................ 9
DEVICE DESCRIPTION ...................................................................................... 12
INTRODUCTION ........................................................................................................... 12
ADC ............................................................................................................................... 12
ADC DIGITAL FILTER................................................................................................... 12
AUDIO DATA SAMPLING RATES ................................................................................ 13
DIGITAL AUDIO INTERFACES..................................................................................... 14
DIGITAL FILTER CHARACTERISTICS .............................................................. 15
ADC FILTER RESPONSES................................................................................. 15
ADC HIGH PASS FILTER ............................................................................................. 15
APPLICATIONS INFORMATION ........................................................................ 16
RECOMMENDED EXTERNAL COMPONENTS ........................................................... 16
RECOMMENDED EXTERNAL COMPONENTS VALUES ............................................ 16
PACKAGE DIMENSIONS.................................................................................... 17
IMPORTANT NOTICE ......................................................................................... 18
ADDRESS: .................................................................................................................... 18
REVISION HISTORY ........................................................................................... 19
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PD, Rev 4.5, February 2012
2
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WM8738
PIN CONFIGURATION
DVDD
SDATO
BCLK
FMT
CAP
VREF
RIN
1 14
2 13
3 12
4 WM8738 11
5 10
69
78
DGND
MCLK
LRCLK
NOHP
AGND
AVDD
LIN
Production Data
ORDERING INFORMATION
DEVICE
WM8738CGED
TEMPERATURE
RANGE
-40 to +85oC
WM8738CGED/R
-40 to +85oC
Note:
Reel quantity = 3,000
PACKAGE
14-lead SOIC
(Pb-free)
14-lead SOIC
(Pb-free, tape and reel)
MOISTURE SENSITIVITY
LEVEL
MSL1
MSL1
PEAK SOLDERING
TEMPERATURE
260°C
260°C
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PD, Rev 4.5, February 2012
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