http://www.www.datasheet4u.com

900,000+ Datasheet PDF Search and Download

Datasheet4U offers most rated semiconductors datasheets pdf



Analog Devices Semiconductor Electronic Components Datasheet



AD1838A

2 ADC/ 6 DAC/ 96KHZ 24 BIT CODEC


No Preview Available !

AD1838A pdf
a
2 ADC, 6 DAC,
96 kHz, 24-Bit -Codec
AD1838A
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 -Modulators with
Perfect Differential Linearity Restoration for
Reduced Idle Tones and Noise Floor
Data Directed Scrambling DACs—Least
Sensitive to Jitter
Differential Output for Optimum Performance
ADCs: –95 dB THD + N, 105 dB SNR and
Dynamic Range
DACs: –95 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 ؋ fS, 512 ؋ fS, and 768 ؋ fS Master
Mode Clocks
Power-Down Mode Plus Soft Power-Down Mode
Flexible Serial Data Port with Right-Justified, Left-
Justified, I2S Compatible, and DSP Serial Port Modes
TDM Interface Mode Supports 8 In/8 Out 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 Processors
GENERAL DESCRIPTION
The AD1838A is a high performance single-chip codec featuring
three stereo DACs and one stereo ADC. Each DAC comprises a
high performance digital interpolation filter, a multibit -
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 -modulators and decimation filters.
The AD1838A also contains an on-chip reference with a nomi-
nal value of 2.25 V.
The AD1838A contains a flexible serial interface that allows
glueless connection to a variety of DSP chips, AES/EBU
receivers, and sample rate converters. The AD1838A can be
configured in left-justified, right-justified, I2S, or DSP com-
patible serial modes. Control of the AD1838A is achieved by
means of an SPI® compatible serial port. While the AD1838A
can be operated from a single 5 V supply, it also features a sepa-
rate supply pin for its digital interface that allows the device to
be interfaced to other devices using 3.3 V power supplies.
The AD1838A is available in a 52-lead MQFP package and is
specified for the industrial temperature range of –40ºC to +85ºC.
FUNCTIONAL BLOCK DIAGRAM
DVDD DVDD ODVDD ALRCLK ABCLK ASDATA CCLK CLATCH CIN COUT MCLK PD/RST M/S AVDD AVDD
AAUXDATA3
DLRCLK
DBCLK
DSDATA1
DSDATA2
DSDATA3
DAUXDATA
ADCLP
ADCLN
ADCRP
ADCRN
−∆
ADC
−∆
ADC
SERIAL DATA
I/O PORT
DIGITAL
FILTER
DIGITAL
FILTER
CONTROL PORT
VOLUME
VOLUME
VOLUME
VOLUME
VOLUME
VOLUME
CLOCK
DIGITAL
FILTER
DIGITAL
FILTER
DIGITAL
FILTER
AD1838A
-
DAC
-
DAC
-
DAC
VREF
OUTLP1
OUTLN1
OUTRP1
OUTRN1
OUTLP2
OUTLN2
OUTRP2
OUTRN2
OUTLP3
OUTLN3
OUTRP3
OUTRN3
FILTD
FILTR
REV. A
DGND DGND AGND AGND AGND AGND
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. 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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703 © 2004 Analog Devices, Inc. All rights reserved.



No Preview Available !

AD1838A pdf
AD1838A–SPECIFICATIONS
TEST CONDITIONS
Supply Voltages (AVDD, DVDD)
Ambient Temperature
Input Clock
DAC Input Signal
ADC Input Signal
Input Sample Rate (fS)
Measurement Bandwidth
Word Width
Load Capacitance
Load Impedance
5.0 V
25°C
12.288 MHz (256 ϫ fS Mode)
1.0078125 kHz, 0 dBFS (Full Scale)
1.0078125 kHz, –1 dBFS
48 kHz
20 Hz to 20 kHz
24 Bits
100 pF
47 k
Performance of all channels is identical (except for the Interchannel Gain Mismatch and Interchannel Phase Deviation speci-
fications).
Parameter
Min Typ Max Unit
ANALOG-TO-DIGITAL CONVERTERS
ADC Resolution
Dynamic Range (20 Hz to 20 kHz, –60 dB Input)
No Filter
With A-Weighted Filter
Total Harmonic Distortion + Noise (THD + N)
48 kHz
96 kHz
Interchannel Isolation
Interchannel Gain Mismatch
Analog Inputs
Differential Input Range (± Full Scale)
Common-Mode Input Voltage
Input Impedance
Input Capacitance
VREF
DC Accuracy
Gain Error
Gain Drift
100
–2.828
24
103
105
–95
–95
100
0.025
2.25
4
15
2.25
±5
35
–88.5
–87.5
+2.828
Bits
dB
dB
dB
dB
dB
dB
V
V
k
pF
V
%
ppm/ºC
DIGITAL-TO-ANALOG CONVERTERS
DAC Resolution
Dynamic Range (20 Hz to 20 kHz, –60 dBFS Input)
No Filter
With A-Weighted Filter (48 kHz and 96 kHz)
Total Harmonic Distortion + Noise (48 kHz and 96 kHz)
Interchannel Isolation
DC Accuracy
Gain Error
Interchannel Gain Mismatch
Gain Drift
Interchannel Phase Deviation
Volume Control Step Size (1023 Linear Steps)
Volume Control Range (Maximum Attenuation)
Mute Attenuation
De-emphasis Gain Error
Full-Scale Output Voltage at Each Pin (Single-Ended)
Output Resistance at Each Pin
Common-Mode Output Voltage
103
105
24
105
108
–95
110
± 4.0
0.025
200
± 0.1
0.098
60
–100
± 0.1
1.0 (2.8)
180
2.25
–90
Bits
dB
dB
dB
dB
%
dB
ppm/°C
Degrees
%
dB
dB
dB
V rms (V p-p)
V
ADC DECIMATION FILTER, 48 kHz*
Pass Band
Pass-Band Ripple
Stop Band
Stop-Band Attenuation
Group Delay
21.77
± 0.01
26.23
120
910
kHz
dB
kHz
dB
µs
–2– REV. A



Part Number AD1838A
Description 2 ADC/ 6 DAC/ 96KHZ 24 BIT CODEC
Maker Analog Devices - Analog Devices
Total Page 24 Pages
PDF Download
AD1838A pdf
Download PDF File
AD1838A pdf
View for Mobile




Featured Datasheets

Part Number Description Manufacturers PDF
AD1833 Multichannel 24-Bit/ 192 kHz/ DAC AD1833
Analog Devices
PDF
AD1833A 24-Bit/ 192 kHz/ DAC AD1833A
Analog Devices
PDF
AD1835 2 ADC/ 8 DAC/ 96 kHz/ 24-Bit Codec AD1835
Analog Devices
PDF
AD1835A Codecs AD1835A
Analog Devices
PDF
AD1836 Multichannel 96 kHz Codec AD1836
Analog Devices
PDF
AD1837 2 ADC/ 8 DAC/ 96 kHz/ 24-Bit Codec AD1837
Analog Devices
PDF


Part Number Start With

0  1  2  3  4  5  6  7  8  9  A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

site map

webmaste! click here

contact us

Buy Components