| Control Interface |
IIC |
| Temperature |
-40℃~85℃ |
| DSP |
YES |
| Noise (μV) |
34 |
| PO(W)（8&THD=1%） |
1×35W@4Ω, 18V, THD+N <1% in PBTL mode |
| PO(W)（4&THD=1%） |
2×25W@4Ω, 18V, THD+N<1% in BTL mode |
| IO Supply (Max) (V) |
3.63 |
| IO Supply (Min) (V) |
1.62 |
| Digital Supply (Max) (V) |
3.63 |
| Digital Supply (Min) (V) |
1.62 |
| Power Supply (Max) (V) |
20 |
| Power Supply (Min) (V) |
4.5 |
| IV Sense |
NO |
| Loadmin（Ω) |
2 |
| Channel |
2 |
Integrates SKTune Algorithm
Smart Protection (Anti-chip Voltage Limiter)
Input Mixer, Output Crossbar
2x20 Parametric Equalizers (EQ)
Dynamic Equalizer Enhancement (DEE)
Multi-band Dynamic Range Control
Auto Gain Control(AGC)
Output Power
2×25W@4Ω, 18V, THD+N<1% in BTL mode
1×35W@4Ω, 18V, THD+N <1% in PBTL mode
Excellent Audio Performance
THD+N≤0.02%@6Ω,1 W,1 kHz, PVDD = 12 V
SNR≥108dB@6Ω,1%,1 kHz, PVDD = 18 V, A-weighted
Noise Level ≤ 34uVrms
High-efficiency Class-D Amplifier
Power efficiency 90%, RDSon 100mΩ
Low quiescent current < 17 mA
Supports Low-Loss Mode
I2S/TDM interface
I2S, Left-Justified and Right-Justified
Supports 1/2/4/6/8/16 Slots TDM
Supports 32k,44.1k,48k,88.2k,96k,192kHz Sample Rates
Data Width: 16, 20, 24, 32 Bits
SDOUT for audio monitoring or echo cancellation
I2C-bus control interface(1MHz)
Extensive Pop-Click Suppression
Volume control (from -96dB to 0dB)
Support Spread Spectrum to Enhance EMI Performance
Multiple switching frequencies
AM/FM avoidance
Supports 384kHz、480kHz、576kHz、768kHz、960 kHz、1200kHz switching frequencies
Power Supplies
PVDD: 4.5V~20V
DVDD: 1.8V/3.3V
Integrated Self-Protection
Over-Current Protection (OCP)
Over-Temperature Protection (OTP)
Over / Under-Voltage Lock-out (OVLO/UVLO)
DC-detect and short-circuit protection
The AW85805S is a high-efficiency, stereo digital class D audio amplifier with low power dissipation and sound enrichment.
The device employs a multiple switching frequency option and Spread Spectrum technology to enhance EMI performance, avoid AM/FM interferences. And it supports Multichip synchronization and channel phase shift.
The AW85805S integrates SKTune algorithm that includes parametric audio path equalizer, dynamic range control, etc. The SKTune algorithm maximizes speaker performance while maintaining safe working conditions.
AW85805S supports Over-Current Protection, Over-Temperature Protection, DC Protection, Under-Voltage/Over-Voltage Protection, short-circuit Protection to protect the device.
AW85805S is available in a ETSSOP-28L Package.
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