ADAU1962A Datasheet PDF - Analog Devices
| Part Number | ADAU1962A | |
| Description | 24-Bit DAC | |
| Manufacturers | Analog Devices | |
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Data Sheet
12-Channel, High Performance,
192 kHz, 24-Bit DAC
ADAU1962A
FEATURES
GENERAL DESCRIPTION
Differential or single-ended voltage DAC output
The ADAU1962A is a high performance, single-chip digital-to-
114 dB DAC dynamic range, A-weighted, differential
analog converter (DAC) that provides 12 DACs with differential or
−97 dB total harmonic distortion plus noise (THD + N),
single-ended outputs using the Analog Devices, Inc., patented
differential
multibit sigma-delta (Σ-Δ) architecture. A serial peripheral interface
110 dB DAC dynamic range, A-weighted, single-ended
(SPI)/I2C port is included, allowing a microcontroller to adjust
−95 dB THD + N, single-ended
volume and many other parameters. The ADAU1962A operates
2.5 V digital and 3.3 V analog and input/output (I/O) supplies
from 2.5 V digital and 3.3 V analog supplies. A linear regulator
249 mW total quiescent power
is included to generate the digital supply voltage from the analog
Phase-locked loop (PLL) generated or direct master clock
supply voltage. The ADAU1962A is available in an 80-lead LQFP.
Low electromagnetic interference (EMI) design
Linear regulator driver to generate digital supply
Supports 24-bit and 32 kHz to 192 kHz sample rates
Low propagation 192 kHz sample rate mode
Log volume control with autoramp function
Temperature sensor with digital readout ±3°C accuracy
SPI and I2C controllable for flexibility
Software-controllable clickless mute
Software power-down
Right justified, left justified, I2S, and TDM modes
Master and slave modes with up to 12-channel input/output
80-lead LQFP package
The ADAU1962A is designed for low EMI. This consideration
is apparent in both the system and circuit design architectures.
By using the on-board PLL to derive the internal master clock from
an external left-right frame clock (LRCLK), the ADAU1962A
can eliminate the need for a separate high frequency master clock
and can be used with or without a bit clock. The DACs are
designed using the latest Analog Devices continuous time
architectures to further minimize EMI. By using 2.5 V digital
supplies, power consumption is minimized, and the digital
waveforms are a smaller amplitude, further reducing emissions.
Note that throughout this data sheet, multifunction pins, such
Qualified for automotive applications
as SCLK/SCL, are referred to by the entire pin name or by a
APPLICATIONS
single function of the pin, for example, SCLK, when only that
function is relevant.
Automotive audio systems
Home theater systems
Digital audio effects processors
FUNCTIONAL BLOCK DIAGRAM
DIGITAL AUDIO
INPUT
ANALOG
AUDIO
OUTPUTS
ADAU1962A
DAC
DAC
DAC
DAC
DAC
DAC
DIGITAL
FILTER
AND
VOLUME
CONTROL
DAC
DAC
PRECISION
VOLTAGE
REFERENCE
SERIAL DATA PORT
SDATA
IN
SDATA
IN
CLOCKS
TIMING MANAGEMENT
AND CONTROL
(CLOCK AND PLL)
SPI/I2C
CONTROL PORT
DIGITAL
FILTER
AND
VOLUME
CONTROL
DAC
DAC
DAC
DAC
INTERNAL
TEMP
SENSOR
ANALOG
AUDIO
OUTPUTS
CONTROL DATA
INPUT/OUTPUT
Figure 1.
Rev. A
Document Feedback
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. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2013–2016 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
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ADAU1962A
Data Sheet
ANALOG PERFORMANCE SPECIFICATIONS: TA = 105°C
Specifications guaranteed at supply voltages of AVDDx = 3.3 V, DVDD = 2.5 V, ambient temperature1 (TA) = 105°C, unless otherwise
noted.
Table 2.
Parameter
DIGITAL-TO-ANALOG CONVERTERS
Dynamic Range (DNR)
No Filter (RMS)
With A-Weighted Filter (RMS)
No Filter (RMS)
With A-Weighted Filter (RMS)
Total Harmonic Distortion + Noise
Differential Output
Single-Ended Output
Full-Scale Differential Output Voltage
Full-Scale Single-Ended Output Voltage
Gain Error
Offset Error
Gain Drift
Interchannel Isolation
Interchannel Phase Deviation
Volume Control Step
Volume Control Range
De-Emphasis Gain Error
Output Resistance at Each Pin
REFERENCE
Temperature Sensor Reference Voltage
Common-Mode Reference Output
External Reference Voltage Source
REGULATOR
Input Supply Voltage
Regulated Output Voltage
TEMPERATURE SENSOR
Temperature Accuracy
Temperature Readout Range
Temperature Readout Step Size
Temperature Sample Rate
Test Conditions/Comments
20 Hz to 20 kHz, −60 dB input
Differential output
Differential output
Single-ended output
Single-ended output
Two channels running −1 dBFS
All channels running −1 dBFS
Two channels running −1 dBFS
All channels running −1 dBFS
TS_REF pin
CM pin
CM pin
VSUPPLY pin
VSENSE pin
Min Typ
Max Unit
106.5
109.5
101.5
104.5
110
113
108
110
dB
dB
dB
dB
−92 −83 dB
−92 −83 dB
−90 −80 dB
−90 −80 dB
2.00 (2.83)
V rms (V p-p)
1.00 (1.41)
V rms (V p-p)
−10 +10 %
−25 −6
+25 mV
−30 +30 ppm/°C
100 dB
0 Degrees
0.375
dB
95.25
dB
±0.6 dB
33 Ω
1.50
1.40 1.50
1.40 1.50
V
1.56 V
1.56 V
3.14 3.3
2.25 2.50
3.46 V
2.55 V
−3
−60
1
0.25
+3
+140
6
°C
°C
°C
Hz
1 Functionally guaranteed at −40°C to +125°C case temperature.
CRYSTAL OSCILLATOR SPECIFICATIONS
Table 3.
Parameter
TRANSCONDUCTANCE
TA = 25°C
TA = 105°C
Min
6.4
5.2
Typ
7 to 10
7.5 to 8.5
Max
14
12
Unit
mmhos
mmhos
Rev. A | Page 4 of 48
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