NAU8812YG Nuvoton Technology Corporation of America, NAU8812YG Datasheet

no-image

NAU8812YG

Manufacturer Part Number
NAU8812YG
Description
Manufacturer
Nuvoton Technology Corporation of America
Datasheet

Specifications of NAU8812YG

Case
QFN32
Notes
NEW
Date_code
11+
1.
The NAU8812 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
I
single ended auxiliary input (multi purpose). There are few variable gain control stages in the audio path. It also
includes MONO 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 (I
and mixing, programmable-gain amplifiers (PGA), and soft muting. The digital interfaces, 2-Wire or SPI, have
independent supply voltage to allow integration into multiple supply systems. The NAU8812 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.
2.
24-bit signal processing linear Audio CODEC
Analog I/O
Interfaces
emPowerAudio
Datasheet Revision 2.0
2
S, PCM with time slot assignment, and on-chip PLL. The device provides one differential microphone input and one
GENERAL DESCRIPTION
FEATURES
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 800mW (8Ω / 5V)
Integrated Headset Driver 40mW (16Ω / 3.3V)
Integrated programmable Microphone Amplifier
Integrated Line Input and Line Output
Earphone / Speaker / Line Output selection
Microphone / Line Inputs selection
Low Noise bias supplied for microphone
On-chip PLL
I
SPI & 2-Wire serial control Interface (I
Read/Write capable)
2
S digital interface PCM time slot assignment
MICBIAS
MIC+
AUX
MIC-
Micophone
Microphone
Interface
Bias
Mixers
Stage
Input
Gain
&
CSb/GPIO
ADC
2
C style;
GPIO
PLL
Page 1 of 109
Notch Filter
ADC Filter
Volume
Control
HPF
Digital Audio Interface
I
2
S
Audio I/O
PCM
Mono Audio Codec with Speaker Driver
DAC Filter
Volume
Control
Limiter
Low Power, Low Voltage
Additional features
Applications
Analog Supply: 2.5V to 3.6V
Digital Supply: 1.71V to 3.6V
Nominal Operating Voltage: 3.3V
Programmable ALC
ADC Notch Filter
Programmable High Pass Filter
Digital A/D-D/A Passthrough
AEC-Q100 & TS16949 qualification
Industrial temperature: range: –40C to +85C
VoIP Telephones]
Conference speaker-phone
IP PBX
Mobile Telephone Hands-free Kits
Residential & Consumer Intercoms
Serial Control Interface
2-wire
2
S). The DAC converter path includes filtering
DAC
Digital I/O
SPI
Speaker
Volume
Output
Mixers
&
-1
Line Driver
Speaker
Driver
BTL
NAU8812
January 2011
emPowerAudio
SPK+
SPK-
AUX

Related parts for NAU8812YG

Related keywords