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參數(shù)資料
| 型號： | AD1839AEB |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | Codec |
| 英文描述： | 2 ADC, 6 DAC, 96 kHz, 24-Bit Sigma-Delta Codec |
| 中文描述： | 2的ADC，6 DAC的，96千赫，24位Σ-Δ編解碼器 |
| 文件頁數(shù)： | 1/24頁 |
| 文件大?。?/td> | 674K |
| 代理商： | AD1839AEB |
2 ADC, 6 DAC,
96 kHz, 24-Bit Sigma-Delta Codec
AD1839A
FEATURES
5 V stereo audio system with 3.3 V tolerant digital interface
Supports up to 96 kHz sample rates
192 kHz sample rate available on 1 DAC
Supports 16-/20-/24-bit word lengths
Multibit
Σ
-
modulators with perfect differential linearity
restoration for reduced idle tones and noise floor
Data-directed scrambling DACs—least sensitive to jitter
Single-ended output
ADCs: 95 dB THD + N, 105 dB SNR and dynamic range
DACs: 92 dB THD + N, 108 dB SNR and dynamic range
On-chip volume controls per channel with 1024-step linear
scale
DAC and ADC software controllable clickless mutes
Digital de-emphasis processing
Supports 256 × f
S
, 512 × f
S
, and 768 × f
S
master mode clocks
Power-down mode and soft power-down mode
Flexible serial data port with right-justified, left-justified,
I
2
S compatible, and DSP serial modes
TDM interface mode supports 8-in/8-out operation using a
single SHARC SPORT
52-lead MQFP plastic package
APPLICATIONS
DVD video and audio players
Home theater systems
Automotive audio systems
Audio/visual receivers
Digital audio effects process
Rev.
B
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
Tel: 781.329.4700Fax: 781.326.8703
www.analog.com GENERAL DESCRIPTION
The AD1839A is a high performance single-chip codec that
features three stereo DACs and one stereo ADC. Each DAC
comprises a high performance digital interpolation filter, a
multibit Σ- modulator featuring Analog Devices’ patented
technology, and a continuous-time voltage-out analog section.
Each DAC has independent volume control and clickless mute
functions. The ADC comprises two 24-bit conversion channels
with multibit Σ- modulators and decimation filters.
The AD1839A also contains an on-chip reference with a
nominal value of 2.25 V.
The AD1839A contains a flexible serial interface that allows
glueless connection to a variety of DSP chips, AES/EBU
receivers, and sample rate converters. The AD1839A can be
configured in left-justified, right-justified, I
2
S, or DSP compati-
ble serial modes. Control of the AD1839A is achieved by means
of an SPI compatible serial port. While the AD1839A can be
operated from a single 5 V supply, it also features a separate
supply pin for its digital interface that allows the device to be
interfaced to other devices using 3.3 V power supplies. The
AD1839A is available in a 52-lead MQFP package and is
specified for the 40°C to +85°C industrial temperature range.
FUNCTIONAL BLOCK DIAGRAM
OUTL1
CONTROL PORT
CLOCK
FILTD
FILTR
ADCLP
ADCLN
ADCRP
ADCRN
DLRCLK
DBCLK
DSDATA1
DSDATA2
DSDATA3
DAUXDATA
MCLK
ODVDD
DVDD
AVDD
AVDD
DVDD
AGND
DGND
CIN
CLATCH
CCLK
COUT
DIGITAL
FILTER
DIGITAL
FILTER
M/S
VOLUME
SERIAL DATA
I/O PORT
DIGITAL
FILTER
V
REF
OUTR1
VOLUME
OUTL2
VOLUME
DIGITAL
FILTER
OUTR2
VOLUME
OUTL3
VOLUME
DIGITAL
FILTER
OUTR3
VOLUME
Σ
-
ADC
AAUXDATA3
AD1839A
ASDATA
ABCLK
ALRCLK
AGND
AGND
AGND
DGND
0
Σ
-
ADC
Σ
-
DAC
Σ
-
DAC
Σ
-
DAC
PD/RST
Figure 1.
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| AD1839AS | 制造商:Analog Devices 功能描述:AUD CODEC 2ADC / 6DAC 24BIT 52MQFP - Trays 制造商:Rochester Electronics LLC 功能描述:HIGH PERFORMANCE CODEC - Bulk |
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