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Analog Devices Semiconductor Electronic Components Datasheet



AD1853

Stereo/ 24-Bit/ 192 kHz/ Multibit DAC



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AD1853 pdf
a Stereo, 24-Bit, 192 kHz, Multibit ⌺⌬ DAC
AD1853*
FEATURES
5 V Stereo Audio DAC System
Accepts 16-/18-/20-/24-Bit Data
Supports 24 Bits and 192 kHz Sample Rate
Accepts a Wide Range of Sample Rates Including:
32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz and 192 kHz
Multibit Sigma-Delta Modulator with “Perfect Differential
Linearity Restoration” for Reduced Idle Tones and
Noise Floor
Data Directed Scrambling DAC—Least Sensitive to Jitter
Differential Output for Optimum Performance
120 dB Signal to Noise (Not Muted) at 48 kHz
(A-Weighted Mono)
117 dB Signal to Noise (Not Muted) at 48 kHz
(A-Weighted Stereo)
119 dB Dynamic Range (Not Muted) at 48 kHz Sample
Rate (A-Weighted Mono)
116 dB Dynamic Range (Not Muted) at 48 kHz Sample
Rate (A-Weighted Stereo)
–107 dB THD+N (Mono Application Circuit, See Figure 30)
–104 dB THD+N (Stereo)
115 dB Stopband Attenuation (96 kHz)
On-Chip Clickless Volume Control
Hardware and Software Controllable Clickless Mute
Serial (SPI) Control for: Serial Mode, Number of Bits,
Interpolation Factor, Volume, Mute, De-Emphasis, Reset
Digital De-Emphasis Processing for 32, 44.1 and 48 kHz
Sample Rates
Clock Auto-Divide Circuit Supports Five Master-Clock
Frequencies
Flexible Serial Data Port with Right-Justified, Left-
Justified, I2S-Compatible and DSP Serial Port Modes
28-Lead SSOP Plastic Package
APPLICATIONS
Hi End: DVD, CD, Home Theater Systems, Automotive
Audio Systems, Sampling Musical Keyboards, Digital
Mixing Consoles, Digital Audio Effects Processors
PRODUCT OVERVIEW
The AD1853 is a complete high performance single-chip stereo
digital audio playback system. It is comprised of a high per-
formance digital interpolation filter, a multibit sigma-delta
modulator, and a continuous-time current-out analog DAC
section. Other features include an on-chip clickless stereo at-
tenuator and mute capability, programmed through an SPI-
compatible serial control port. The AD1853 is fully compatible
with all known DVD formats and supports 48 kHz, 96 kHz and
192 kHz sample rates with up to 24 bits word lengths. It also
provides the “Redbook” standard 50 µs/15 µs digital de-emphasis
filters at sample rates of 32 kHz, 44.1 kHz and 48 kHz.
The AD1853 has a very flexible serial data input port that
allows for glueless interconnection to a variety of ADCs, DSP
chips, AES/EBU receivers and sample rate converters. The
AD1853 can be configured in left-justified, I2S, right-justified,
or DSP serial port compatible modes. The AD1853 accepts
serial audio data in MSB first, twos complement format.
The AD1853 operates from a single +5 V power supply. It is
fabricated on a single monolithic integrated circuit and is housed in
a 28-lead SSOP package for operation over the temperature
range 0°C to +70°C.
FUNCTIONAL BLOCK DIAGRAM
INT2؋ INT4؋
CONTROL DATA
VOLUME INPUT
MUTE
3
DIGITAL
SUPPLY
2
CLOCK
IN
AD1853
SERIAL CONTROL
INTERFACE
VOLTAGE
REFERENCE
AUTO-CLOCK
DIVIDE CIRCUIT
DIGITAL
DATA INPUT
SERIAL 2
MODE
SERIAL
DATA
INTERFACE
ATTEN/
MUTE
ATTEN/
MUTE
8 ؋ FS
INTERPOLATOR
8 ؋ FS
INTERPOLATOR
MULTIBIT SIGMA-
DELTA MODULATOR
MULTIBIT SIGMA-
DELTA MODULATOR
IDAC
IDAC
ANALOG
OUTPUTS
*Patents Pending.
RESET
MUTE
DE-EMPHASIS
2
ANALOG
SUPPLY
2
ZERO
FLAG
REV. A
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
otherwise under any patent or patent rights of Analog Devices.
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., 1999



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AD1853 pdf
AD1853–SPECIFICATIONS
TEST CONDITIONS UNLESS OTHERWISE NOTED
Supply Voltages (AVDD, DVDD)
Ambient Temperature
+5.0 V
+25°C
Input Clock
Input Signal
24.576 MHz (512 × FS Mode)
996.094 kHz
–0.5 dB Full Scale
Input Sample Rate
48 kHz
Measurement Bandwidth
20 Hz to 20 kHz
Word Width
20 Bits
Input Voltage HI
3.5 V
Input Voltage LO
0.8 V
ANALOG PERFORMANCE (See Figures)
Min Typ
Max
Resolution
Signal-to-Noise Ratio (20 Hz to 20 kHz)
No Filter (Stereo)
No Filter (Mono—See Figure 30)
With A-Weighted Filter (Stereo)
With A-Weighted Filter (Mono—See Figure 30)
Dynamic Range (20 Hz to 20 kHz, –60 dB Input)
No Filter (Stereo)
No Filter (Mono—See Figure 30)
With A-Weighted Filter (Stereo)
With A-Weighted Filter (Mono—See Figure 30)
Total Harmonic Distortion + Noise (Stereo)
Total Harmonic Distortion + Noise (Mono—See Figure 30)
Analog Outputs
Differential Output Range (± Full Scale w/1 mA into IREF)
Output Capacitance at Each Output Pin
Out-of-Band Energy (0.5 × FS to 75 kHz)
CMOUT
DC Accuracy
Gain Error
Interchannel Gain Mismatch
Gain Drift
Interchannel Crosstalk (EIAJ Method)
Interchannel Phase Deviation
Mute Attenuation
De-Emphasis Gain Error
107.5
110
–94
–0.15
24
114
117
117
120
113
116
116
119
–104
0.00063
–107
0.00045
3.0
2.75
± 3.0
0.01
25
–125
± 0.1
–100
30
–90
+0.15
± 0.1
NOTES
Single-ended current output range: 1 mA ± 0.75 mA.
Performance of right and left channels are identical (exclusive of the Interchannel Gain Mismatch and Interchannel Phase Deviation specifications).
Specifications subject to change without notice.
DIGITAL I/O (+25؇C–AVDD, DVDD = +5.0 V ؎ 10%)
Input Voltage HI (VIH)
Input Voltage LO (VIL)
Input Leakage (IIH @ VIH = 3.5 V)
Input Leakage (IIL @ VIL = 0.8 V)
Input Capacitance
Output Voltage HI (VOH)
Output Voltage LO (VOL)
Specifications subject to change without notice.
Min Typ
2.4
DVDD–0.5 DVDD–0.4
0.2
Max
0.8
10
10
20
0.5
Units
Bits
dB
dB
dB
dB
dB
dB
dB
dB
dB
%
dB
%
mA p-p
pF
dB
V
%
dB
ppm/°C
dB
Degrees
dB
dB
Units
V
V
µA
µA
pF
V
V
–2– REV. A



Part Number AD1853
Description Stereo/ 24-Bit/ 192 kHz/ Multibit DAC
Maker Analog Devices - Analog Devices
Total Page 16 Pages
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