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Analog Devices Semiconductor Electronic Components Datasheet

AD1959 Datasheet

PLL/Multibit DAC

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AD1959 pdf
a
FEATURES
5 V Stereo Audio DAC System
Accepts 16-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 Data Directed
Scrambling
Single-Ended Output for Easy Application
–94 dB THD + N
108 dB SNR and Dynamic Range
75 dB Stopband Attenuation
Clickless Volume Control
Hardware and Software Controllable Clickless Mute
Serial (SPI) Control for: Serial Mode, Number of Bits,
Sample Rate, Volume, Mute, De-Emphasis and
Output Phase
Digital De-Emphasis Processing for 32 kHz, 44.1 kHz,
and 48 kHz Sample Rates
Programmable Dual Fractional-N PLL Clock Generator
27 MHz Master Clock Input/Oscillator
Generated System Clocks
SCLK0: 33.8688 MHz
SCLK1: 384/256 fS (32 kHz/44.1 kHz/48 kHz/88.2 kHz/
96 kHz)
SCLK2: 512 fS (32 kHz/44.1 kHz/48 kHz/88.2 kHz/
96 kHz)/22.5792 MHz
Better than 100 ps RMS Clock Jitter
Flexible Serial Data Port with Right-Justified, Left-
Justified, I2S-Compatible, and DSP Serial Port Modes
28-Lead SSOP Plastic Package
PLL/Multibit -DAC
AD1959
APPLICATIONS
DVD, CD, Home Theater Systems, Automotive Audio
Systems, Sampling Musical Keyboards, Digital Mixing
Consoles, Digital Audio Effects Processors
PRODUCT OVERVIEW
The AD1959 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 with an on-board dual PLL clock generator.
Other features include an on-chip stereo attenuator and mute,
programmed through an SPI-compatible serial control port.
The AD1959 is fully compatible with all known DVD formats
including 96 kHz and 192 kHz sample frequencies and 24 bits.
It also is backwards-compatible by supporting 50 µs/15 µs
digital de-emphasis for “redbook” compact discs, as well as
de-emphasis at 32 kHz and 48 kHz sample rates.
The AD1959 has a simple but 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
AD1959 can be configured in left-justified, I2S, right-justified,
or DSP serial-port-compatible modes. It can support 16, 20,
and 24 bits in all modes. The AD1959 accepts serial audio data
in MSB first, two’s-complement format, and 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 for
operation over the temperature range –40°C to +105°C.
FUNCTIONAL BLOCK DIAGRAM
XIN XOUT MCLK
LOOP CLOCK
FILTERS OUTPUTS
23
CONTROL DATA
INPUT
3
AD1959
OSC
PLL
CIRCUIT
SERIAL CONTROL
INTERFACE
VOLTAGE
REFERENCE
16-/20-/24-
BIT DIGITAL
DATA INPUT
3
SERIAL
DATA
INTERFACE
ATTEN/MUTE
ATTEN/MUTE
8 ؋ FS
INTERPOLATOR
8 ؋ FS
INTERPOLATOR
MULTIBIT
SIGMA-DELTA
MODULATOR
MULTIBIT
SIGMA-DELTA
MODULATOR
DAC
DAC
OUTPUT
BUFFER
OUTPUT
BUFFER
L
ANALOG
OUTPUTS
R
REV. 0
RESET MUTE ZERO FLAG
2
PLL SUPPLY
2
DIGITAL SUPPLY
3
ANALOG SUPPLY
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.
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
© Analog Devices, Inc., 2001



Analog Devices Semiconductor Electronic Components Datasheet

AD1959 Datasheet

PLL/Multibit DAC

No Preview Available !

AD1959 pdf
AD1959–SPECIFICATIONS
TEST CONDITIONS UNLESS OTHERWISE NOTED
Supply Voltages (AVDD, DVDD) 5.0 V
Ambient Temperature
25°C
Input Clock
12.288 MHz
Input Signal
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
3.5 V
Input Voltage LO
0.8 V
ANALOG PERFORMANCE
Min Typ Max
Resolution
Signal-to-Noise Ratio (20 Hz to 20 kHz)
No Filter (Stereo)
With A-Weighted Filter (Stereo)
Dynamic Range (20 Hz to 20 kHz, –60 dB Input)
No Filter (Stereo)
With A-Weighted Filter (Stereo)
Total Harmonic Distortion + Noise (Stereo)
PLL Performance
Master Clock Input Frequency
Generated System Clocks
SCLK0
SCLK1
SCLK2
Jitter (SCLK0 and SCLK1)
Analog Outputs
Single-Ended Output Range (± Full Scale)
Output Capacitance at Each Output Pin
VREF (FILTR)
Gain Error
Interchannel Gain Mismatch
Gain Drift
DC Offset
Out-of-Band Energy (0.5 × fS to 100 kHz)
Interchannel Crosstalk (EIAJ Method)
Interchannel Phase Deviation
De-Emphasis Gain Error
101
2.34
–5
–0.15
–25
24
105
108
105
108
–94
27
33.8688
12.288
22.5792
85
3.17
2.39
± 2.0
± 0.015
150
–5
–120
± 0.1
–91
125
2
2.44
+5
+0.15
250
+15
–90
± 0.1
NOTES
Performance of right and left channels is identical (exclusive of the Interchannel Gain Mismatch and Interchannel Phase Deviation specifications).
Specifications subject to change without notice.
DIGITAL I/O (–40°C to +105°C )
Min Typ Max
Input Voltage HI (VIH) Except XIN
Input Voltage HI (VIH) XIN
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 Except XOUT
Low Level Output Voltage (VOL) IOL = 1 mA XOUT
Input Capacitance
2.2
2.7
2.0
0.8
10
10
0.4
1.2
20
Specifications subject to change without notice.
Unit
Bits
dB
dB
dB
dB
dB
MHz
MHz
MHz
MHz
ps rms
V p-p
pF
V
%
dB
ppm/°C
mV
dB
dB
Degrees
dB
Unit
V
V
V
µA
µA
V
V
V
pF
–2– REV. 0



Analog Devices Semiconductor Electronic Components Datasheet

AD1959 Datasheet

PLL/Multibit DAC

No Preview Available !

AD1959 pdf
TEMPERATURE RANGE
Min Typ Max
Specifications Guaranteed
Functionality Guaranteed
Storage
25
–40
–55
+105*
+150
NOTES
*105°C ambient guaranteed for a 4-layer board, two 1 oz. planes, two 2 oz. signal layers. Derate to 85 °C for 2-layer board, 2 oz. layers.
Specifications subject to change without notice.
AD1959
Unit
°C
°C
°C
POWER
Supplies
Voltage, Analog Digital PLL
Analog Current
Digital Current
PLL Current
Dissipation
Operation – All Supplies
Operation – Analog Supply
Operation – Digital Supply
Operation – PLL Supply
Specifications subject to change without notice.
Min Typ Max
4.50 5
36
28
27
455
180
140
135
5.50
42
34
32
540
Unit
V
mA
mA
mA
mW
mW
mW
mW
DIGITAL FILTER CHARACTERISTICS
Sample Rate (kHz) Pass Band (kHz)
44.1 DC–20
48 DC–21.8
96 DC–39.95
192 DC–87.2
Specifications subject to change without notice.
Stop Band (kHz)
24.1–328.7
26.23–358.28
56.9–327.65
117–327.65
Stopband Attenuation (dB)
75
75
75
60
Pass-Band Ripple (dB)
± 0.0002
± 0.0002
± 0.0005
0/–0.04 (DC–21.8 kHz)
0/–0.5 (DC–65.4 kHz)
0/–1.5 (DC–87.2 kHz)
GROUP DELAY
Chip Mode
Group Delay Calculation
INT8× Mode
INT4× Mode
INT2× Mode
24.625/fS
15.75/fS
14/fS
Specifications subject to change without notice.
fS
48 kHz
96 kHz
192 kHz
DIGITAL TIMING (Guaranteed over –40°C to +105°C, AVDD = DVDD = 5.0 V ± 10%)
tDMP
tDML
tDMH
tDBH
tDBL
tDBP
tDLS
tDLH
tDDS
tDDH
tRSTL
MCLK Period (FMCLK = 256 × FLRCLK)
MCLK LO Pulsewidth (All Modes)
MCLK HI Pulsewidth (All Modes)
BCLK HI Pulsewidth
BCLK LO Pulsewidth
BCLK Period
LRCLK Setup
LRCLK Hold (DSP Serial Port Mode Only)
SDATA Setup
SDATA Hold
RST LO Pulsewidth
Specifications subject to change without notice.
Group Delay
513
164
72.91
Min
54
15
10
7
12
60
20
20
15
10
15
Unit
µs
µs
µs
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
REV. 0
–3–




Part Number AD1959
Description PLL/Multibit DAC
Maker Analog Devices
Total Page 8 Pages
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