NAU8811 PDF даташит
Спецификация NAU8811 изготовлена «Nuvoton Technology» и имеет функцию, называемую «Mono Audio Codec». |
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Детали детали
Номер произв | NAU8811 |
Описание | Mono Audio Codec |
Производители | Nuvoton Technology |
логотип |
30 Pages
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NAU8811
Mono Audio Codec with SPI
emPowerAudio™
1. GENERAL DESCRIPTION
The NAU8811 is a cost effective and low power wideband MONO audio CODEC. It is designed for voice
telephony related applications. Functions include Automatic Level Control (ALC) with noise gate, PGA, standard
audio interface I2S, and PCM with time slot assignment. The device provides one differential microphone input
and one single ended auxiliary input (multi purpose). There are few variable gain control stages in the audio path.
It also includes Headphone (Headphone) line output and integrated BTL speaker driver.
The analog inputs have PGA on the front end, allowing dynamic range optimization with a wide range of input
sources. The microphone amplifiers have a programmable gain from -12dB to +35.25dB to handle both amplified
microphones. In addition to a digital high pass filter to remove DC offset voltages, the ADC also features voice
band digital filtering. Voice-band data is accepted by the audio interface (I2S). The DAC converter path includes
filtering and mixing, programmable-gain amplifiers (PGA), and soft muting. The digital interface SPI have
independent supply voltage to allow integration into multiple supply systems. The NAU8811 operates at supply
voltages from 2.5V to 3.6V, although the digital core can operate at voltage as low as 1.71V to save power.
The NAU8811 is specified for operation from -40C to +85C. AEC-Q100 & TS16949 compliant device is
available upon request.
2. FEATURES
24-bit signal processing linear Audio CODEC
Audio DAC: 93dB SNR and -84dB THD
Audio ADC: 91dB SNR and -79dB THD
Support variable sample rates from 8 - 48kHz
Integrated BTL Speaker Driver 1W (8Ω / 5V)
Integrated Headset Driver 40mW (16Ω / 3.3V)
Analog I/O
Integrated programmable Microphone Amplifier
Integrated Line Input and Line Output
Integrated Audio Switches
Headphone / Speaker / Line Output selection
Microphone / Line Inputs selection
Interfaces
I2S digital interface PCM time slot assignment
SPI serial control Interface
emPowerAudio™
Datasheet Revision 2.5
Page 1 of 87
January 2015
No Preview Available ! |
Low Power, Low Voltage
Analog Supply: 2.5V to 3.6V
Digital Supply: 1.71V to 3.6V
Nominal Operating Voltage: 3.3V
Additional features
Programmable ALC and ADC Notch Filter
Programmable High Pass Filter
Digital D/A Passthrough
AEC-Q100 & TS16949 compliant device available upon request
Industrial temperature: range: –40C to +85C
Applications
VoIP Telephones
IP PBX
Mobile Telephone Hands-free Kits
Residential & Consumer Intercoms
General Purpose low power audio CODEC
NAU8811
AUX
MIC-
MIC+
Microphone
Interface
Input
Mixers &
Gain
Stage
ADC
ADC Filter
Volume
Control
HPF
Notch
Filter
DAC Filter
Volume
Control
Limiter
DAC
Output
Mixers
Digital Audio Interface
I2S PCM
Audio I/O
Control IF
SPI
Digital I/O
-1
MOUT
SPKOUT+
SPKOUT-
emPowerAudio™
Datasheet Revision 2.5
Page 2 of 87
January 2015
No Preview Available ! |
3. PIN CONFIGURATION
NAU8811
MIC+
VDDA
VSSA
VDDD
VSSD
1
2
3
4
5
15 VSSSPK
14 SPKOUT+
13 MOUT
12 SDIO
11 SCLK
Metal
Paddle
(VSSA)
Figure 1: 20-Pin QFN Package
emPowerAudio™
Datasheet Revision 2.5
Page 3 of 87
January 2015
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DataSheet26.com | 2020 | Контакты | Поиск |