The DA7219 is an audio CODEC with in-built advanced
accessory detection (AAD) for mobile computing and accessory
applications. This product contains a mono microphone to
ADC path with audio activity detection, and a stereo DAC to
HP path. The AAD block supports 3 and 4 pole jacks, allows
the automatic polarity switching of MIC/GND on CTIA or OMTP
headsets and also supports automatic button detection.
DA7219
Features
►
High performance mono microphone to ADC
record path with 90 dB SNR.
– ADC digital filters with audio and voice
mode high-pass characteristics
►
High performance stereo DAC to headphone
playback path with 100 dB SNR.
– DAC digital filters with audio and voice
mode high-pass cutoff and 5-band equaliser
►
Advanced Accessory Detection supports
– Three/four pole jack detection
– MIC-Ground polarity switching
– Multiple button detection
►
A hybrid analogue/digital automatic level
control to dynamically control record level.
32 bump WL-CSP Package
►
Digital Sidetone path with gain
►
Digital Tonegen with S-Ramp
►
System controller for simplified pop-free
startup and shutdown.
►
Separate 24 kHz ADC/48 kHz DAC sample
rates available
►
Shutdown mode for very low current
consumption during standby
►
Phase-locked loop with sample rate tracking to
generate system clock.
►
4-wire digital audio interface with support for
I2S, TDM and other audio formats.
►
2-wire I2C compatible with support for High
Speed mode up to 3.4MHz
Audio System diagram
Applications
►
Chromebooks
►
Portable audio applications
►
Tablets and eBooks
►
Audio accessories
www.dialog-semiconductor.com
Block Diagram
DA7219
Headset
TRS/TRRS
Enhanced
Accessory
Detection
Digital Filters
Volume Control
5 Band Equalizer
Automatic Level Control
Sidetone filtering
Level & Impedance detect
Multiple Button detection
Tone Generator
L Headphone
Class G
2 ch
DAC
Mic 1
1 ch
ADC
R Headphone
Class G
Mic 2
I
2
C
I
2
S
PLL
Advanced Accessory Detection (AAD)
Jack Type
Position
SLEEVE
RING2
RING1
TIP
CTIA
MIC
GND
HP_R
HP_L
OMTP
GND
MIC
HP_R
HP_L
The AAD will detect a jack insertion/removal, detect the polarity of the jack (CTIA/OMTP), and
will support the detection of impedance based buttons in parallel with the connected accessory
microphone.
Feature highlights
►
GNG/MIC polarity switch and multiple button
detection for CTIA/OMTP audio jacks
►
7.5mm2 package footprint enabling PCB
space savings in area constrained applications
United Kingdom
Phone: +44 1793 757700
Germany
Phone: +49 7021 805-0
The Netherlands
Phone: +31 73 640 88 22
North America
Phone: +1 408 845 8500
►
Capless headphone driver eliminates large AC
coupling capacitors
►
Optimised ball-out conducive for low cost PCB
manufacturing
email: info@diasemi.com
Korea
Phone: +82 2 3469 8200
China (Shenzhen)
Phone: +86 755 2981 3669
China (Shanghai)
Phone: +86 21 5424 9058
Singapore
Phone: +65 648 499 29
Hong Kong
Phone: +852 3769 5200
Dialog Semiconductor Worldwide Sales Offices
-
www.dialog-semiconductor.com
Japan
Phone: +81 3 5425 4567
Taiwan
Phone: +886 281 786 222
This publication provides outline information only, which unless agreed by Dialog Semiconductor may not
be used, applied or reproduced for any purpose, or be regarded as a representation relating to products.
Please refer to Dialog standard supply terms on the company website (www.dialog-semiconductor.com).
© Dialog Semiconductor 2015. All rights reserved. 0415XXX
