2 ADC, 6 DAC,
96 kHz, 24-Bit ꢀ-ꢁ Codec
AD1839
APPLICATIONS
FEATURES
DVD Video and Audio Players
Home Theater Systems
5 V Stereo Audio System with 3.3 V Tolerant
Digital Interface
Automotive Audio Systems
Audio/Visual Receivers
Digital Audio Effects Processors
Supports up to 96 kHz Sample Rates
192 kHz Sample Rate Available on One DAC
Supports 16-/20-/24-Bit Word Lengths
Multibit ꢀ-ꢁ Modulators with
Perfect Differential Linearity Restoration for
Reduced Idle Tones and Noise Floor
Data Directed Scrambling DACs—Least
Sensitive to Jitter
Single-Ended Output
ADCs: –95 dB THD + N, 105 dB SNR and
Dynamic Range
DACs: –92 dB THD + N, 108 dB SNR and
Dynamic Range
PRODUCT OVERVIEW
The AD1839 is a high performance single-chip codec featuring
three stereo DACs and one stereo ADC. Each DAC comprises
a high performance digital interpolation filter, a multibit ⌺-⌬
modulator featuring Analog Devices’ patented technology, and
a continuous-time voltage out analog section. Each DAC has
independent volume control and clickless mute functions. The
ADC comprises two 24-bit conversion channels with multibit
⌺-⌬ modulators and decimation filters.
On-Chip Volume Controls per Channel with
1024 Step Linear Scale
The AD1839 also contains an on-chip reference with a nominal
value of 2.25 V.
DAC and ADC Software Controllable Clickless Mutes
Digital De-emphasis Processing
Supports 256 ꢂ fS, 512 ꢂ fS, and 768 ꢂ fS Master
Mode Clocks
Power-Down Mode Plus Soft Power-Down Mode
Flexible Serial Data Port with Right-Justified, Left-
Justified, I2S Compatible, and DSP Serial Port Modes
TDM Interface Mode Supports 8 In/8 Out Using a
Single SHARC ® SPORT
The AD1839 contains a flexible serial interface that allows
for glueless connection to a variety of DSP chips, AES/EBU
receivers, and sample rate converters. The AD1839 can be
configured in left-justified, right-justified, I2S, or DSP com-
patible serial modes. Control of the AD1839 is achieved by
means of an SPI® compatible serial port. While the AD1839
can be operated from a single 5 V supply, it also features a
separate supply pin for its digital interface that allows the device
to be interfaced to other devices using 3.3 V power supplies.
52-Lead MQFP Plastic Package
The AD1839 is available in a 52-lead MQFP package and is
specified for the industrial temperature range of –40ºC to +85ºC.
FUNCTIONAL BLOCK DIAGRAM
DVDD DVDD ODVDD ALRCLK ABCLK ASDATA CCLK CLATCH CIN COUT
MCLK
AVDD
PD/RST M/S
AVDD
AAUXDATA3
DLRCLK
CLOCK
CONTROL PORT
OUTL1
VOLUME
VOLUME
VOLUME
VOLUME
VOLUME
VOLUME
SERIAL DATA
I/O PORT
DBCLK
ꢀ-ꢁ
DAC
DIGITAL
FILTER
DSDATA1
DSDATA2
DSDATA3
DAUXDATA
OUTR1
OUTL2
ꢀ-ꢁ
DAC
DIGITAL
FILTER
OUTR2
OUTL3
ꢀ-ꢁ
DAC
DIGITAL
FILTER
ADCLP
ADCLN
ꢀ-ꢁ
ADC
DIGITAL
FILTER
OUTR3
FILTD
FILTR
ADCRP
ADCRN
ꢀ-ꢁ
ADC
DIGITAL
FILTER
V
AD1839
REF
DGND DGND AGND AGND AGND AGND
REV. B
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may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective companies.
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