AD1852JRS Analog Devices Inc, AD1852JRS Datasheet

IC DAC STEREO 24BIT 28-SSOP

AD1852JRS

Manufacturer Part Number
AD1852JRS
Description
IC DAC STEREO 24BIT 28-SSOP
Manufacturer
Analog Devices Inc
Datasheet

Specifications of AD1852JRS

Rohs Status
RoHS non-compliant
Number Of Bits
24
Data Interface
DSP, I²S, Serial, SPI™
Number Of Converters
2
Voltage Supply Source
Analog and Digital
Power Dissipation (max)
265mW
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
28-SSOP
Settling Time
-

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a
*Patents Pending
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.
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:
Multibit Sigma-Delta Modulator with “Perfect
Data-Directed Scrambling DAC—Least Sensitive to
Differential Output for Optimum Performance
117 dB Signal-to-Noise (Not Muted) at 48 kHz Sample
114 dB Signal-to-Noise (Not Muted) at 48 kHz Sample
117 dB Dynamic Range (Not Muted) at 48 kHz Sample
114 dB Dynamic Range (Not Muted) at 48 kHz Sample
–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,
Digital De-Emphasis Processing for 32 kHz, 44.1 kHz,
Clock Autodivide Circuit Supports Five Master-Clock
32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, and
192 kHz
Differential Linearity Restoration” for Reduced Idle
Tones and Noise Floor
Jitter
Rate (A-Weighted Mono)
Rate (A-Weighted Stereo)
Rate (A-Weighted Mono)
Rate (A-Weighted Stereo)
Sample Rate, Volume, Mute, De-Emp
48 kHz Sample Rates
Frequencies
16-/18-/20-/24-BIT
DATA INPUT
DIGITAL
SERIAL
MODE
2
INTERFACE
SERIAL
DATA
AD1852
RESET
ATTEN/
ATTEN/
MUTE
MUTE
FUNCTIONAL BLOCK DIAGRAM
INTERPOLATION
INTERPOLATOR
MUTE
8
8
F
F
S
S
VOLUME
MUTE
SERIAL CONTROL
DE-EMPHASIS
CONTROL DATA
INTERFACE
DELTA MODULATOR
DELTA MODULATOR
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
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 s/15 s 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, I
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.
INPUT
MULTIBIT SIGMA-
MULTIBIT SIGMA-
Flexible Serial Data Port with Right-Justified, Left-
28-Lead SSOP Plastic Package
APPLICATIONS
Hi End: DVD, CD, Home Theater Systems, Automotive
3
Justified, I
Audio Systems, Sampling Musical Keyboards, Digital
Mixing Consoles, Digital Audio Effects Processors
ANALOG
SUPPLY
REFERENCE
2
2
VOLTAGE
S-Compatible and DSP Serial Port Modes
Stereo, 24-Bit, 192 kHz
DAC
DAC
World Wide Web Site: http://www.analog.com
DIGITAL
SUPPLY
2
ZERO
FLAG
DIVIDE CIRCUIT
2
AUTO-CLOCK
Multibit
CLOCK
IN
© Analog Devices, Inc., 2000
AD1852*
2
ANALOG
OUTPUTS
S, right-justified,
DAC

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AD1852JRS Summary of contents

Page 1

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 ...

Page 2

AD1852–SPECIFICATIONS TEST CONDITIONS UNLESS OTHERWISE NOTED Supply Voltages ( Ambient Temperature Input Clock Input Signal Input Sample Rate Measurement Bandwidth Word Width Load Capacitance Load Impedance Input Voltage HI Input Voltage LO ANALOG PERFORMANCE (See ...

Page 3

TEMPERATURE RANGE Specifications Guaranteed Functionality Guaranteed Storage Specifications subject to change without notice. POWER Supplies Voltage, Analog and Digital Analog Current Analog Current—RESET Digital Current Digital Current—RESET Dissipation Operation—Both Supplies Operation—Analog Supply Operation—Digital Supply Power Supply Rejection Ratio 1 kHz ...

Page 4

... JC [Junction-to-Case]) Model Temperature AD1852JRS AD1852JRSRL CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the AD1852 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality ...

Page 5

Pin Input/Output Pin Name 1 I DGND 2 I MCLK 3 I CLATCH 4 I CCLK 5 I CDATA 192/ ZEROR 9 I DEEMP 10 I 96/48 11 AGND 12 O OUTR+ ...

Page 6

AD1852 L/RCLK LEFT CHANNEL INPUT BCLK INPUT SDATA LSB MSB INPUT L/RCLK INPUT BCLK INPUT SDATA MSB MSB–1 MSB–2 INPUT L/RCLK LEFT CHANNEL INPUT BCLK INPUT SDATA MSB MSB–1 MSB–2 LSB+2 INPUT L/RCLK LEFT CHANNEL INPUT BCLK INPUT SDATA MSB ...

Page 7

OPERATING FEATURES Serial Data Input Port The AD1852’s flexible serial data input port accepts data in twos-complement, MSB-first format. The left channel data field always precedes the right channel data field. The serial mode is set by using either the ...

Page 8

AD1852 Chip Mode Allowable Master Clock Frequencies INT8 Mode 256 F , 384 S INT4 Mode 128 F , 192 S INT2 Mode Note that the AD1852 is capable “packed ...

Page 9

Table III. SPI Digital Timing t CCLK HI Pulsewidth CCH t CCLK LOW Pulsewidth CCL t CDATA Setup Time CSU t CDATA Hold Time CHD t CLATCH LOW Pulsewidth CLL t CLATCH HI Pulsewidth CLH t CLATCH Setup Time CLSU ...

Page 10

AD1852 Bit 11 Bit 10 INT2 Mode INT4 Mode OR’d with Pin 7 OR’d with Pin 10 Bits in Right- (192/48). (96/48). Default = 0 Default = 0 Control Register Table V shows the functions of the control register. The ...

Page 11

Figures 9–14 show the calculated frequency response of the digital interpolation filters. Figures 15–26 show the performance of the AD1852 as measured by an Audio Precision System 2 Cascade. For the wideband plots, the noise floor shown in the plots ...

Page 12

AD1852 –50 –60 –70 –80 –90 –100 –110 –120 10 100 1k FREQUENCY – Hz Figure 15. THD vs. Frequency Input @ –3 dBFS kHz 2 0 –2 –4 –6 –8 –10 –12 10 100 1k FREQUENCY – ...

Page 13

Figure 21. Linearity vs. Amplitude Input 200 Hz kS/s, 24-Bit Word –64 –66 –68 –70 –72 –74 – 100 FREQUENCY – Hz ...

Page 14

... AD1852 STEREO DAC DVDD AVDD C3 C2 100nF 100nF DVDD AVDD 96/48 192/48 NC OUTL+ SDATA U1 LRCLK OUTL– AD1852JRS SCLK MCLK OUTR+ IDPM0 IDPM1 OUTR– DEEMP MUTE CLATCH CCLK CDATA ZEROR FILTR ZEROL FILTB RESET DGND AGND AGND FB1 600Z ...

Page 15

SDATA LEFT/RIGHT BCLK DATA SEPARATOR AND INVERTER LRCLK MCLK LRCLK INPUT TO DATA SEPARATOR Ln SDATA LRCLK DATA SEPARATOR LSDATA OUTPUT RDATA REV 3.01k L+ SDATA LRCLK 3.01k BCLK ...

Page 16

AD1852 0.311 (7.9) 0.301 (7.64) 0.078 (1.98) 0.068 (1.73) 0.008 (0.203) 0.002 (0.050) OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 28-Lead Shrink Small Outline Package (SSOP) (RS-28) 0.407 (10.34) 0.397 (10.08 0.212 (5.38) 0.205 (5.21 ...

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