DA7210
Ultra low power stereo audio codec with True-GND
headphone driver
The DA7210 is a high definition audio codec with
integrated true-ground capless headphone driver suitable
for a variety of low power, digital portable audio products.
Featuring a high efficiency headphone amplifier and
minimum supply voltage of 1.8V to simplify interfacing
to digital processors, the ultra-low 2.5mW power
consumption extends music playback time for battery
operated equipment.
The integrated PLL uses a FRACT-N PLL architecture that
Available in 49 bump WLCSP package
supports a large range of input and output frequencies. This
is in addition to standard mobile phone/USB system clock
frequencies - enabling audio data synchronization when no master clock is readily available.
Eight analogue input pins allow multiple audio sources to be internally mixed, eliminating the
need for external switches. Both single-ended and fullydifferential line and microphone inputs are
supported with built-in variable gain amplifiers to optimize dynamic range prior to digitisation. This
allows a diverse variety of analogue audio sources such as baseband voice, mobile TV, WiFi and
FM radio to be managed. Input and output mixers with stereo-tomono conversion also support mono
configurations such headset/baseband line outputs. Beside the fully differential mono RX channel,
DA7210 provides two volume controlled differential/single-ended stereo line out drivers and ground
centered stereo amplifiers to directly drive standard 3-wire 16ohm headphones. For example the dc-
coupled, dedicated pop-free drivers may be connected to stereo headphones, stereo speaker and
mono line out, all simultaneously and without external switches.
All filtering and sidetone functions are performed digitally including 5-band EQ and a digital input
AGC with programmable attack and decay parameters. A configurable signal processing engine
allows various audio enhancements and effects i.e. acoustic filtering, wind noise suppression and
3D sound.
The multi-slot I2S/PCM interface supports all common sample rates between 8-96kHz in master or
slave modes.
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Features
►
High performance audio codec with integrated
PLL
►
True-GND capless Class G 40mW headphone
driver with integrated charge pump
►
Flexible clocking capability to minimise master
clock circuit board routing
►
Fully differential mono voice channel
►
Pop & Click suppression circuitry
►
Multi mode audio routers and mixers & volume
control
Target Applications
►
Smart phones
►
Personal Media Players
►
Multimedia Handsets
►
Personal Navigation Devices
Functions
►
Stereo Playback/Record: 2.5mW & 3.5mW @
1.8V
►
Audio performance@ 2.5V
– DAC: 100dB/-85db THD
– ADC: 96db SNR/-89dB THD
►
Sample rates up to 96kHz supported via multi-
slot I2S/PCM interface
►
Stereo fully-differential microphone amplifiers
with 5uV input noise and bias
►
DSP 5 Band EQ, Input ALC, programmable
noise and acoustic enhancement filters
Power Saving Highlights
►
Low power Multi-bit DAC/ADC
►
Stereo Playback/Record: 2.5mW & 3.5mW @
1.8V
►
Class G Headphone driver
►
1.8V operation from external DC/DC
Digital Processing highlights
Audio Performance highlights
►
5-band EQ
►
Independent volume control
►
Fully digital ALC
►
Programmable acoustic filters for audio
enhancements and effects
►
Wind Noise Suppression
►
24bit/96kHz Max Sample rate
►
Stereo 5uV balanced Microphone amplifiers
and low noise bias
►
Low distortion differential outputs
►
40mW 16Ω headphone driver
Board Area highlights
►
Capless headphone driver eliminates large AC
coupling capacitors
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Block Diagram
DA7210
L Headphone
Class G
Mic 1
R Headphone
Class G
Digital Filters
Mic 2
AUX
2 ch
ADC
Line
Stereo
Acoustic Filtering
Wind/Zoom
Noise Suppresssion
5 Band Equalizer
Automatic Gain Control
2 ch
DAC
Line Out
Line Out
Line Out/
AUX
I2C / SPI
I
2
S
PLL
Dialog Semiconductor Worldwide Sales Offices
-
www.dialog-semiconductor.com
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
Japan
Phone: +81 3 5425 4567
Taiwan
Phone: +886 281 786 222
Singapore
Phone: +65 648 499 29
Hong Kong
Phone: +852 3769 5200
email: info@diasemi.com
Korea
Phone: +82 2 3469 8200
China (Shenzhen)
Phone: +86 755 2981 3669
China (Shanghai)
Phone: +86 21 5424 9058
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
