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Analog Devices Semiconductor Electronic Components Datasheet

AD1852 Datasheet

Stereo/ 24-Bit/ 192 kHz Multibit DAC

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AD1852 pdf
a
Stereo, 24-Bit, 192 kHz
Multibit Σ∆ DAC
AD1852*
FEATURES
5 V Stereo Audio DAC System
Accepts 16-Bit/18-Bit/20-Bit/24-Bit Data
Supports 24 Bits, 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
117 dB Signal-to-Noise (Not Muted) at 48 kHz Sample
Rate (A-Weighted Mono)
114 dB Signal-to-Noise (Not Muted) at 48 kHz Sample
Rate (A-Weighted Stereo)
117 dB Dynamic Range (Not Muted) at 48 kHz Sample
Rate (A-Weighted Mono)
114 dB Dynamic Range (Not Muted) at 48 kHz Sample
Rate (A-Weighted Stereo)
–105 dB THD+N (Mono Application Circuit)
–102 dB THD+N (Stereo)
115 dB Stopband Attenuation
On-Chip Clickless Volume Control
Hardware and Software Controllable Clickless Mute
Serial (SPI) Control for: Serial Mode, Number of Bits,
Sample Rate, Volume, Mute, De-Emp
Digital De-Emphasis Processing for 32 kHz, 44.1 kHz,
48 kHz Sample Rates
Clock Autodivide 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 AD1852 is a complete high performance single-chip stereo
digital audio playback system. It is comprised of a multibit sigma-
delta modulator, digital interpolation filters, and analog output
drive circuitry. Other features include an on-chip stereo attenuator
and mute, programmed through an SPI-compatible serial control
port. The AD1852 is fully compatible with all known DVD
formats including 192 kHz as well as 96 kHz sample frequen-
cies and 24 bits. It also is backwards compatible by supporting
50 µs/15 µs digital de-emphasis intended for “Redbook” compact
discs, as well as de-emphasis at 32 kHz and 48 kHz sample rate.
The AD1852 has a very simple but 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
AD1852 can be configured in left-justified, I2S, right-justified,
or DSP serial port compatible modes. It can support 16, 18, 20,
and 24 bits in all modes. The AD1852 accepts serial audio data
in MSB first, twos-complement format. The AD1852 oper-
ates 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
CONTROL DATA
VOLUME INPUT
MUTE
3
DIGITAL
SUPPLY
2
CLOCK
IN
16-/18-/20-/24-BIT
DIGITAL
DATA INPUT
SERIAL 2
MODE
AD1852
SERIAL CONTROL
INTERFACE
VOLTAGE
REFERENCE
SERIAL
DATA
INTERFACE
ATTEN/
MUTE
ATTEN/
MUTE
8 ؋ FS
INTERPOLATOR
8 ؋ FS
INTERPOLATION
MULTIBIT SIGMA-
DELTA MODULATOR
MULTIBIT SIGMA-
DELTA MODULATOR
DAC
DAC
AUTO-CLOCK
DIVIDE CIRCUIT
ANALOG
OUTPUTS
*Patents Pending
RESET
MUTE
DE-EMPHASIS
2
ANALOG
SUPPLY
2
ZERO
FLAG
REV. 0
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., 2000


Analog Devices Semiconductor Electronic Components Datasheet

AD1852 Datasheet

Stereo/ 24-Bit/ 192 kHz Multibit DAC

No Preview Available !

AD1852 pdf
AD1852–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)
996.11 Hz
–0.5 dB Full Scale
Input Sample Rate
48 kHz
Measurement Bandwidth
20 Hz to 20 kHz
Word Width
20 Bits
Load Capacitance
100 pF
Load Impedance
47 k
Input Voltage HI
2.4 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 29)
With A-Weighted Filter (Stereo)
With A-Weighted Filter (Mono—See Figure 29)
Dynamic Range (20 Hz to 20 kHz, –60 dB Input)
No Filter (Stereo)
No Filter (Mono—See Figure 29)
With A-Weighted Filter (Stereo)
With A-Weighted Filter (Mono—See Figure 29)
Total Harmonic Distortion + Noise (Stereo)
Total Harmonic Distortion + Noise (Mono—See Figure 29)
Total Harmonic Distortion + Noise (Stereo) VO = –20 dB
Total Harmonic Distortion + Noise (Stereo) VO = –60 dB
Analog Outputs
Differential Output Range (± Full Scale)
Output Capacitance at Each Output Pin
Out-of-Band Energy (0.5 × FS to 100 kHz)
CMOUT
DC Accuracy
Gain Error
Interchannel Gain Mismatch
Gain Drift
DC Offset
Interchannel Crosstalk (EIAJ Method)
Interchannel Phase Deviation
Mute Attenuation
De-Emphasis Gain Error
107
110
–94
–10
–0.15
24
112
115
114
117
112
115
114
117
–102
0.00079
–105
0.00056
–92
–52
5.6
2.37
± 2.0
± 0.015
150
–50
–120
± 0.1
–100
2
–90
+10
+0.15
250
± 0.1
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 (0؇C TO 70؇C)
Input Voltage HI (VIH)
Input Voltage LO (VIL)
Input Leakage (IIH @ VIH = 2.4 V)
Input Leakage (IIL @ VIL = 0.8 V)
High Level Output Voltage (VOH) IOH = 1 mA
Low Level Output Voltage (VOL) IOL = 1 mA
Input Capacitance
Specifications subject to change without notice.
Min Typ Max
2.2
0.8
10
10
2.0
0.4
20
Unit
Bits
dB
dB
dB
dB
dB
dB
dB
dB
dB
%
dB
%
dB
dB
V p-p
pF
dB
V
%
dB
ppm/°C
mV
dB
Degrees
dB
dB
Unit
V
V
µA
µA
V
V
pF
–2– REV. 0


Part Number AD1852
Description Stereo/ 24-Bit/ 192 kHz Multibit DAC
Maker Analog Devices
Total Page 16 Pages
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