CONEXANT AD1989B

AD1989B SoundMAX HD Audio Codec With 10 DACs,
6 ADCs, and SPDIF I/O
Features
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Ten 192 kHz, 101 dB DACs
– 7.1 surround sound plus
independent headphone
– All independent sample rates, 8 kHz
through 192 kHz
– Selectable stereo mixer on outputs
– 16-, 20-, and 24-bit resolution
Six 192 kHz, 92 dB ADCs
– Simultaneous record of up to 3
stereo channels
– All independent sample rates, 8 kHz
through 192 kHz
– 16-, 20-, and 24-bit resolution
S/PDIF output
– 2 independent transmitters, second
S/PDIF can support external HDMI
interface
– Supports 44.1 kHz through 192 kHz
sample rates
– 16-, 20-, and 24-bit data; PCM, and
AC3 formats
– Digital PCM gain control
S/PDIF input
– Supports 44.1 kHz through 192 kHz
sample rates
– 16-, 20-, and 24-bit data; PCM, and
AC3 formats
– Digital PCM gain control
– Auto synchronizes to source sample
rate
Dedicated auxiliary pins
– Stereo CD/auxiliary I/O port w/GND
sense
– MONO_OUT pin for internal speaker
with EAPD support
Presence detection up to 9 jacks
Impedance and presence detection;
retasking
5 adjustable microphone bias pins
Digital and analog PCBeep
3 digital General-purpose I/O (GPIO)
pins
Multiple EAPD pins for external circuit
control
3.3 V analog and digital supply voltages
1.5 V and 3.3 V HD Audio link signaling
Advanced power management modes
Available in 48-QFN package
Overview
The AD1989B audio codec and software provide superior HD audio high quality and
performance. The AD1989B has ten 101 dB DACs and six 92 dB ADCs, three stereo
headphone ports, C/LFE swapping, digital and analog PCBeep, two independent S/PDIF
outputs, and an S/PDIF input. The jack retasking feature on this product supports various
configurations including 7.1 on 5 jacks, 5.1 on 3 jacks, and front panel jack retasking. The
AD1989B is available in a 48-lead RoHS compliant lead frame chip scale package in
both reels and trays.
Block Diagram
HD
Audio
Interface
S/PDIF Rx
S/PDIF IN
S/PDIF Tx
S/PDIF OUT 2 (HDMI)
S/PDIF Tx
S/PDIF OUT 1
Digital and
Analog
PCBeep
DAC3
Σ
Port F
DAC2
Σ
Port G
DAC1
Σ
DAC0
GPIO
and
EAPD
Port D
Σ
MONO OUT
Σ
Port E
Σ
Port A
Σ
Port B
Σ
Port C
ADC2
ADC1
Σ
Digital
Microphone
DM_DATA
DM_CLK
ADC0
Software
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Voice input enhancements
Output enhancements
Applications
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Embedded Audio
Part Number AD1989B
Description SoundMAX HD Audio
Codec
Table 1. Performance Characteristics
Parameter
Min
Typ
Max
Unit
Line-Out Drive (10 kΩ loads—DAC to Pin)
Total Harmonic Distortion (THD + N)
Dynamic Range (–60 dB in ref to fS A-Weighted)
Signal-to-Noise Ratio
–86
101
101
dB
dB
dB
Headphone Drive (32 Ω loads—DAC to Pin)
Total Harmonic Distortion (THD + N)
Dynamic Range (–60 dB in ref to fS A-Weighted)
Signal-to-Noise Ratio
–84
101
101
dB
dB
dB
Input Ports (Mic Boost = 0 dB)
Total Harmonic Distortion (THD + N)
Dynamic Range (–60 dB in ref to fS A-Weighted)
Signal-to-Noise Ratio
–80
92
92
dB
dB
dB
Table 2. Specifications
Parameter
Min
Typ
Max
Unit
Analog-to-Digital Converters
Resolution
24
Gain Error (Full-Scale Span Relative to Nominal Input Voltage)
±0.2
Interchannel Gain Mismatch (Difference of Gain Errors)
ADC Offset Error
Bits
±10
%
±0.5
dB
±5
mV
ADC Crosstalk
Line Inputs (Input L, Ground R, Read R; Input R, Ground L, Read L)
–94
Line Inputs to Other
–100
dB
–80
dB
Digital-to-Analog Converters
Resolution
24
Bits
Gain Error (Full-Scale Span Relative to Nominal Input Voltage)
±10
%
Interchannel Gain Mismatch (Difference of Gain Errors)
±0.5
dB
DAC Crosstalk (Input L, Zero R, Measure R_OUT; Input R, Zero L, Measure L_OUT)
–104
dB
Signal-to-Noise Reduction (SNR) Input to Output
95
dB
Step Size: All Mixer Inputs
–1.5
dB
Analog Mixer
Input Gain/Attenuation Range: All Mixer Inputs
–34.5
+12.0
dB
Ordering Information
Device Set Order ID
AD1989BJCPZ*
Package Type
QFN
Package
48-Lead QFN, 7x7 mm
*Lead-free (Pb Free) and RoHS compliant
© 2012 Conexant Systems, Inc. All Rights Reserved. Conexant and the
Conexant logo are registered trademarks of Conexant Systems, Inc. All other
trademarks are owned by their respective owners. Although Conexant strives
for accuracy in all its publications, this material may contain errors or
omissions and is subject to change without notice. THIS MATERIAL IS
PROVIDED AS IS AND WITHOUT ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING MERCHANT ABILITY, FITNESS FOR A
PAPARTICULAR PURPOSE AND NON-INFRINGEMENT. Conexant shall
not be liable for any special, indirect, incidental or consequential damages as
a result of its use.
www.conexant.com
General Information:
U.S. and Canada: (888) 855-4562
International: 1+ (949) 483-3000
Headquarters
4000 MacArthur Blvd.
Newport Beach, CA 92660
Doc# PBR-203108
Operating
Temperature
0°C to 70°C