Stereo ADC. WM8782A Datasheet

WM8782A ADC. Datasheet pdf. Equivalent

WM8782A Datasheet
Recommendation WM8782A Datasheet
Part WM8782A
Description Stereo ADC
Feature WM8782A; w 24-Bit, 192kHz Stereo ADC WM8782A DESCRIPTION The WM8782A is a high performance, low cost stereo.
Manufacture Wolfson Microelectronics
Datasheet
Download WM8782A Datasheet




Wolfson Microelectronics WM8782A
w
24-Bit, 192kHz Stereo ADC
WM8782A
DESCRIPTION
The WM8782A is a high performance, low cost stereo
audio ADC designed for recordable media applications.
The device offers stereo line level inputs along with two
control input pins (FORMAT, IWL) to allow operation of the
audio interface in three industry standard modes. An
internal op-amp is integrated on the front end of the chip to
accommodate analogue input signals greater than 1Vrms.
The device also has a high pass filter to remove residual
DC offsets.
WM8782A offers a Slave mode clocking scheme. A stereo
24-bit multi-bit sigma-delta ADC is used with 128x, 64x or
32x over-sampling, according to sample rate. Digital audio
output word lengths from 16-24 bits and sampling rates
from 8kHz to 192kHz are supported.
The device is a hardware controlled device and is supplied
in a 20-lead SSOP.
The device is available over a functional temperature range of
-40°C to +85°C
BLOCK DIAGRAM
FEATURES
SNR 100dB (‘A’ weighted @ 48kHz)
THD -93dB (at –1dB)
Sampling Frequency: 8 – 192kHz
Slave Clocking Mode
System Clock (MCLK): 128fs, 192fs, 256fs, 384fs, 512fs,
768fs
Audio Data Interface Modes
- 16-24 bit I2S, 16-24 bit Left, 16-24 bit Right Justified
Supply Voltages
- Analogue: 2.7 to 5.5V
- Digital core: 2.7V to 3.6V
20-lead SSOP package
Accelerated Lifetime Screened Devices available.
APPLICATIONS
Recordable DVD Players
Personal Video Recorders
STB
Studio Audio Processing Equipment
Automotive
WOLFSON MICROELECTRONICS plc
To receive regular email updates, sign up at http://www.wolfsonmicro.com/enews
Production Data, April 2010, Rev 4.8
Copyright ©2010 Wolfson Microelectronics plc



Wolfson Microelectronics WM8782A
WM8782A
TABLE OF CONTENTS
Production Data
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
THERMAL PERFORMANCE .................................................................................5
RECOMMENDED OPERATING CONDITIONS .....................................................6
ELECTRICAL CHARACTERISTICS ......................................................................6
TERMINOLOGY............................................................................................................. 7
SIGNAL TIMING REQUIREMENTS .......................................................................8
SYSTEM CLOCK TIMING.............................................................................................. 8
AUDIO INTERFACE TIMING – SLAVE MODE .............................................................. 9
DEVICE DESCRIPTION .......................................................................................10
INTRODUCTION.......................................................................................................... 10
ADC ............................................................................................................................. 10
ADC DIGITAL FILTER ................................................................................................. 10
DIGITAL AUDIO INTERFACE...................................................................................... 11
POWER ON RESET .................................................................................................... 14
DIGITAL FILTER CHARACTERISTICS ...............................................................16
ADC FILTER RESPONSES ......................................................................................... 16
ADC HIGH PASS FILTER............................................................................................ 17
APPLICATIONS INFORMATION .........................................................................18
RECOMMENDED EXTERNAL COMPONENTS........................................................... 18
RECOMMENDED EXTERNAL COMPONENTS VALUES............................................ 18
PACKAGE DIMENSIONS ....................................................................................19
IMPORTANT NOTICE.................................................................................................. 20
ADDRESS:................................................................................................................... 20
w
PD, April 2010, Rev 4.8
2



Wolfson Microelectronics WM8782A
Production Data
PIN CONFIGURATION
MCLK
DOUT
LRCLK
DGND
DVDD
BCLK
IWL
FSAMPEN
FORMAT
VMID
1
2
3
4
5
6
7
8
9
10
20 M/S
19 AINL
18 AINOPL
17 COM
16 AINR
15 AINOPR
14 AGND
13 AVDD
12 VREFP
11 VREFGND
WM8782A
ORDERING INFORMATION
DEVICE
WM8782ASEDS/V
TEMPERATURE
RANGE
-40°C to +85°C
WM8782ASEDS/RV -40°C to +85°C
Note:
Reel quantity = 2,000
PACKAGE
20-lead SSOP
(Pb-free)
20-lead SSOP
(Pb-free, tape and reel)
MOISTURE SENSITIVITY
LEVEL
MSL2
MSL2
PEAK SOLDERING
TEMPERATURE
260oC
260oC
w
PD, April 2010, Rev 4.8
3







@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)