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參數(shù)資料
| 型號(hào)： | EVAL-AD1852EB |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 24-Bit Stereo DAC Evaluation Board |
| 中文描述： | 24位立體聲DAC評(píng)估板 |
| 文件頁(yè)數(shù)： | 1/14頁(yè) |
| 文件大小： | 486K |
| 代理商： | EVAL-AD1852EB |
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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
which may result from its use. No license is granted by implication or
a
EVAL-AD1852EB
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 2001
24-Bit Stereo DAC
Evaluation Board
OVERVIEW
The EVAL-AD1852-EB evaluation board permits testing and
demonstrating the high-performance AD1852 24-bit stereo
DAC. An input signal is required in either optical or coaxial
SPDIF format or, alternatively, directly via a 10-pin header in
I
2
S, left justified, right justified, or DSP modes. A second 10-pin
header and DB-9 connector allows control of the internal regis-
ters from an external SPI controller.
Power requirements are a clean 9 V to 12 V dc source for the
digital section and a clean
±
12 V dc for the analog section. The
positive supplies can be paralleled if desired. On-board regulators
derive separate “clean” 5 V dc supplies for the digital and analog
sections. Audio output is provided from two RCA phono jacks.
AD1852 OVERVIEW
The AD1852 is a complete 16-/20-/24-bit single-chip digital
audio, stereo digital-to-analog converter (DAC). It is comprised
of a multibit sigma-delta modulator with dither, continuous
time analog filters, and differential analog outputs. Other fea-
tures include an on-chip stereo attenuator, de-emphasis filter,
selectable interpolator and mute control, programmed through
FUNCTIONAL BLOCK DIAGRAM
U4
I/F
MUX
U3
DAC
AD1852
U9B
U9A
DS1
ZERO LEFT
DS2
ZERO RIGHT
J6
LEFT
J7
RIGHT
JP1
INTERPOLATION
MODE
U5
J3/J5
SPI CONTROL
PORTS
U11
S5
INTERFACE
MODE
U10
U2
DIR
DS3
DEEMPH
DS4
VERF
S1
SIGNAL
SOURCE
SELECT
U1
TOS LINK
U8
RESET
GENERATOR
RESET
S6
RESET
S2
MUTE
S4
DEEMPHASIS
S3
SPDIF/EXT(J2)
J2 EXT DATA
J1 RCA JACK
OPTICAL
INPUT
SPDIF INPUT
an SPI-compatible serial control port. The AD1852 is fully
compatible with all known DVD formats including 96 kHz and
192 kHz sample rates and 24 bits. It also is backwards-compatible
by supporting 50
μ
s/15
μ
s digital de-emphasis intended for
“redbook” Compact Discs, as well as de-emphasis at 32 kHz
and 48 kHz sample frequencies.
The AD1852 has a very simple, but very flexible, serial data
input port that allows for a glueless interconnection to a variety
of ADCs, DSP chips, digital interface receivers (DIR) and
asynchronous sample rate converters (ASRC). The AD1852
can be configured in left-justified (LJ), I
2
S, right-justified (RJ),
or DSP serial port compatible modes. It can support 16, 20, and
24 bits in all modes. The AD1852 accepts serial audio data in
MSB first, twos complement format. A power-down mode is
offered to minimize power consumption when the device is
inactive. The AD1852 operates from a single 5 V power supply.
It is fabricated on a single monolithic integrated circuit and
housed in a 28-lead SSOP package. Normal operation over the
temperature range 0
°
C to 70
°
C is guaranteed.
The AD1852 data sheet gives a more complete description of
operation.
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相關(guān)代理商/技術(shù)參數(shù) |
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| EVAL-AD1870EB | 制造商:AD 制造商全稱:Analog Devices 功能描述:Single-Supply 16-Bit Stereo ADC |
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