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Analog Devices Semiconductor Electronic Components Datasheet

AD1983 Datasheet

HD Audio SoundMAX Codec

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AD1983 pdf
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HD Audio SoundMAX® Codec
AD1983
FEATURES
2 DAC channels: 16-, 20-, or 24-bit
2 ADC channels: 16- or 20-bit
HD audio sample rates
8 kHz, 11.025 kHz, 16 kHz, 22.05 kHz, 32 kHz,
44.1 kHz, 48 kHz
Greater than 90 dB dynamic range
S/PDIF output: 32 kHz, 44.1 kHz, or 48 kHz, 16- or 24-bit
Digital BEEP generator
Integrated headphone amplifiers
Selectable microphone inputs with preamplifiers
Stereo line level inputs
Full analog mixer
2 GPIOs for external circuit control, jack sense
32-lead, Pb-free LFCSP_VQ (QFN) package
ENHANCED FEATURES
No AFILT pins, results in BOM savings
Jack sensing autoconfiguration options
Mute line output and monaural output (MONO_OUT)
when headphones are used
Mute MONO_OUT when a device is in the line out jack
Selectable sense trip level: high/low supports all jack types
Peripheral identification/enumeration
Jack presence detection: HD Audio SENSE and GPIOs
Microphone to MONO_OUT for speakerphone
Advanced power management modes
2 software-controlled microphone bias pins
Stereo microphone array capture
Source from two different ports
0 dB, 10 dB, 20 dB, and 30 dB boost options
SDATA_IN
SDATA_OUT
SYNC
RESET
BIT_CLK
DVDD
DVSS
+3.3V
NID: 01
GPIO
JACK
SENSE
FUNCTIONAL BLOCK DIAGRAM
GPIO_0/JS_1
GPIO_1/JS_0
SENSE_A
SENSE_SRC
NID: 02
16-, 20-, 24-BIT
32kHz, 44.1kHz, 48kHz
PCM/AC3
S/PDIF TX
NID: 03
24-BIT
48kHz
PCM
Σ-Δ DAC
NID: 0A
S/PDIF_OUT
NID: 10
DIGITAL
PCBEEP
GM
0dB TO –45.0dB
3dB STEPS
Σ
NID: 11
GA
–34.5dB TO +12dB
M
NID: 0E
Σ
–34.5dB TO +12dB
M
–34.5dB TO +12dB
M
NID: 04
20-BIT
48kHz
PCM/FLOAT32
Σ-Δ ADC
MG
0dB TO +22.5dB
GA
NID: 13
GA
NID: 12
Figure 1.
Σ
NID: 0B
Σ
NID: 0F
NID: 0D
NID: 0C
BOOST
0dB, 10dB, 20dB, 30dB
AVDD
AVSS
+5.0V
GA M
–46.5dBTO +3dB
NID: 06
HP
OUTPUT_EN
PORT-A
HEADPHONE
GA M Z
–46.5dBTO +3dB OUTPUT_EN
NID: 05
PORT-D
FRONT
GA M
–46.5dBTO +3dB
BIAS_SEL
MIC
BIAS
Z
BIAS_EN
NID: 07
MONO_OUT
NID: 09
MIC_BIAS-C
PORT-C
LINE IN
BIAS_SEL
MIC
BIAS
Z
BIAS_EN
NID: 08
MIC_BIAS-B
PORT-B
MIC
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 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
www.analog.com
Fax: 781.461.3113
©2006 Analog Devices, Inc. All rights reserved.



Analog Devices Semiconductor Electronic Components Datasheet

AD1983 Datasheet

HD Audio SoundMAX Codec

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AD1983 pdf
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AD1983
TABLE OF CONTENTS
Features .............................................................................................. 1
Enhanced Features............................................................................ 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Test Conditions............................................................................. 3
Power Down Dissipation............................................................. 5
Absolute Maximum Ratings............................................................ 6
REVISION HISTORY
4/06—Revision 0: Initial Version
Environmental Conditions ..........................................................6
ESD Caution...................................................................................6
Pin Configuration and Function Descriptions..............................7
HD Audio Codec Information ........................................................9
Verb Support ............................................................................... 12
Jack Presence Detection................................................................. 14
Outline Dimensions ....................................................................... 15
Ordering Guide .......................................................................... 15
Rev. 0 | Page 2 of 16



Analog Devices Semiconductor Electronic Components Datasheet

AD1983 Datasheet

HD Audio SoundMAX Codec

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AD1983 pdf
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AD1983
SPECIFICATIONS
TEST CONDITIONS
Test conditions for the AD1983 are as follows, unless otherwise noted.
General Test Conditions
Temperature at 25°C
Digital supply (DVDD) at 3.3 V ± 10%
Analog supply (AVDD) at 5.0 V ± 10%
Sample rate (FS) at 48 kHz
Input signal at 1.0 kHz
Analog output pass band at 20 Hz to 20,000 Hz
VIH at 2.0 V
VIL at 0.8 V
VIH at 2.4 V
VIL at 0.6 V
DAC Test Conditions
Calibrated
Output −3 dB relative to full scale
10 kΩ output load, Port D, and MONO_OUT
32 Ω output load, Port A
ADC Test Conditions
Calibrated
0 dB PGA gain
Input −3.0 dB relative to full scale
Table 1.
Parameter
ANALOG INPUT
Port-B, Port-C
Conditions
0 dB
Port-B, Port-C
10 dB
Port-B, Port-C
20 dB
Port-B, Port-C
30 dB
Input Impedance2
Input Capacitance2
MASTER VOLUME
Step Size
Output Gain Range
Mute Attenuation of 0 dB Fundamental
PROGRAMMABLE GAIN AMPLIFIER—
ADC
Step Size
PGA Gain Range
ANALOG MIXER—INPUT
GAIN/AMPLIFIERS/ATTENUATORS
Signal-to-Noise Ratio (SNR)
Line In to Line Out
Microphone In to Line Out2
Step Size
Step Size: Digital PC Beep
Input Gain Range
Digital PC Beep
DIGITAL DECIMATION AND
INTERPOLATION FILTERS2
Pass Band
Pass-Band Ripple
Transition Band
Stop Band
Stop-Band Rejection
Port-A, Port-D, MONO_OUT
All mixer inputs except digital PC BEEP
All mixer inputs except digital PC BEEP
Min
–46.5
80
0.0
Typ
1
2.83
0.316
0.894
0.1
0.283
0.032
0.089
20
5
1.5
1.5
Max Unit
V rms1
V p-p
V rms
V p-p
V rms
V p-p
V rms
V p-p
7.5 pF
dB
+3 dB
dB
dB
22.5 dB
−34.5
−45.0
85
80
1.5
3.0
0
0.4 × FS
0.6 × FS
−74
+12.0
0.0
dB
dB
dB
dB
dB
dB
0.4 × FS
±0.09
0.6 × FS
Hz
dB
Hz
Hz
dB
Rev. 0 | Page 3 of 16




Part Number AD1983
Description HD Audio SoundMAX Codec
Maker Analog Devices
Total Page 16 Pages
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