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부품번호 | WM8718 기능 |
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기능 | 24 Bit Differential Stereo DAC | ||
제조업체 | Wolfson Microelectronics | ||
로고 | |||
전체 30 페이지수
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WM8718
24 Bit Differential Stereo DAC with Volume Control
DESCRIPTION
FEATURES
The WM8718 is a high performance differential stereo DAC
designed for audio applications such as DVD, home theatre
systems and digital TV. The WM8718 supports PCM data
input word lengths from 16 to 32-bits and sampling rates up
to 192kHz. The WM8718 consists of a serial interface port,
digital interpolation filters, multi-bit sigma delta modulators
and differential stereo DAC in a small 20-lead SSOP
package or 24-lead QFN package. The WM8718 includes a
digitally controllable mute, an attenuate function and zero
flag output for each channel.
The 3-wire serial control port provides access to a wide
range of features including on-chip mute, attenuation and
phase reversal.
The WM8718 is an ideal device to interface to AC-3™,
DTS™, and MPEG audio decoders for surround sound
applications, or for use in DVD players including those
supporting DVD-A.
• 24 bit Stereo DAC
• Fully Differential Voltage Outputs
• Audio Performance
- 111dB SNR (‘A’ weighted @ 48kHz) DAC
- -100dB THD
• DAC Sampling Frequency: 8kHz - 192kHz
• 3 Wire Serial Control Interface
• Programmable Audio Data Interface Modes
- I2S, Left, Right Justified, DSP
- 16/20/24/32 bit Word Lengths
• Independent Digital Volume Control on Each Channel with
127.5dB Range in 0.5dB Steps
• Independent Zero Flag Outputs
• 3.0V - 5.5V Supply Operation
• 20-lead SSOP Package or 24-lead QFN Package
APPLICATIONS
BLOCK DIAGRAM
• CD, DVD, and DVD-Audio Players
• Home theatre systems
www.DataShee•t4U.comProfessional mixing desks
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WM8718
CONTROL
INTERFACE
ZEROFR
ZEROFL
BCKIN
LRCIN
DIN
AUDIO
INTERFACE
ATT/
MUTE
ATT/
MUTE
DIGITAL
FILTERS
SIGMA
DELTA
MODULATOR
SIGMA
DELTA
MODULATOR
DAC
DAC
VOUTRP
VOUTRN
VOUTLP
VOUTLN
VMID
WOLFSON MICROELECTRONICS plc
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Production Data, November 2006, Rev 4.3
Copyright ©2006 Wolfson Microelectronics plc
WM8718
PIN CONFIGURATION – 24 LEAD QFN
Production Data
ORDERING INFORMATION – 24 LEAD QFN
DEVICE
WM8718GEFL/V
WM8718GEFL/RV
Note:
Reel quantity = 3,500
TEMPERATURE
RANGE
-25 to +85oC
-25 to +85oC
PACKAGE
24-lead QFN
(Pb-free)
24-lead QFN
(Pb-free, tape and reel)
MOISTURE SENSITIVITY
LEVEL
MSL3
MSL3
PEAK SOLDERING
TEMPERATURE
260°C
260°C
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PD Rev 4.3 November 2006
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4페이지 WM8718
Production Data
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are stress ratings only. Permanent damage to the device may be caused by continuously operating at
or beyond these limits. Device functional operating limits and guaranteed performance specifications are given under Electrical
Characteristics at the test conditions specified.
ESD Sensitive Device. This device is manufactured on a CMOS process. It is therefore generically susceptible
to damage from excessive static voltages. Proper ESD precautions must be taken during handling and storage
of this device.
Wolfson tests its package types according to IPC/JEDEC J-STD-020B for Moisture Sensitivity to determine acceptable storage
conditions prior to surface mount assembly. These levels are:
MSL1 = unlimited floor life at <30°C / 85% Relative Humidity. Not normally stored in moisture barrier bag.
MSL2 = out of bag storage for 1 year at <30°C / 60% Relative Humidity. Supplied in moisture barrier bag.
MSL3 = out of bag storage for 168 hours at <30°C / 60% Relative Humidity. Supplied in moisture barrier bag.
The Moisture Sensitivity Level for each package type is specified in Ordering Information.
CONDITION
Digital supply voltage (DVDD)
Analogue supply voltage (AVDD)
Voltage range digital inputs
Master Clock Frequency
Operating temperature range, TA
Storage temperature after soldering
MIN
-0.3V
-0.3V
DGND -0.3V
-25°C
-65°C
MAX
+7V
+7V
VDD +0.3V
37MHz
+85°C
+150°C
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PD Rev 4.3 November 2006
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DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |