MA12040PXUMA1: Audio amplifier. Company advantage inventory.

The MA 12040 is powered by Merus Audio's ultra-efficient Eximo switching amplifier technology. Operating at a fixed supply voltage, it greatly reduces power loss at normal audio monitoring levels. The MA 12040 also eliminates the need for an LC output filter in most applications. These unique advantages create unmatched solution compactness and enable ultimate freedom in application design.

feature:

·Eximo? Multi-level switching technology

·Digital power management algorithm

High-order feedback error control

4-18V power supply voltage

·Analog audio input

Maximum peak output power@10%THD+N

-2×40W, btl, rl=4Ω

-1×80W, pbtl, rl=2Ω

·energy efficiency

- Efficiency at full power (1 kHz sine) >90%_-1W (1 kHz sine) efficiency >75%_-<100 mW idle power consumption (from PvdD@18V, all channels switched)

High output level <0.003%THD+N, 1 kHz, 4Ω

·<55μV output integrated noise level (AW)

Selectable Gain (20 dB, 26 dB)

·Protect

-undervoltage-lockout

- Overtemperature warning/error

-Short circuit/overload protection

·I2C control

· No radiator operation

describe

The MA12040P is an ultra-efficient audio power supply

Proprietary Multilevel Switch-Based Amplifier

technology. It supports the supply voltage range of 4-18V,

making it usable in many different applications.

Multi-level switches for extremely low power consumption

during operation. Additionally, it allows the amplifier

Available at full rated power in unfiltered configuration

in a wide variety of audio products.

MA12040P has embedded digital power

management plan. power management

The algorithm dynamically adjusts the switching frequency and

Modulation to optimize power loss and overall EMI

output power range.

An integrated digital-to-analog converter enables

Digital I2S audio stream input. it supports sample rate

From 44.1 kHz to 192 kHz

Provides a highly flexible output stage configuration,

From four single-ended outputs to a single output

Parallel BTL output.

MA12040P has protection against DC, short circuit,

overheating and undervoltage

Happening.

Flexible "Power Mode Profiles" allow users to take advantage of

Low-power multi-level switching technology

Loss or high audio performance.

Device communication and programming are controlled

Via I2C interface and dedicated control

pins.

Application field

?Battery speaker

?Wireless and docking speakers

?Sound Bar

?Multi-room system

?Home theater system

feature

? Proprietary multi-stage switching technology

? Level 3 and Level 5 modulation

?Low EMI emissions

?No filter amplification

?Digital Power Management Algorithms

?High power efficiency (PMP4)

?<110mW idle power consumption (18V PVDD,

all channels switch)

? >77% efficiency at 1W power (1kHz sine wave, 8Ω)

? >92% efficiency at full power (1kHz sine wave, 8Ω)

?Audio performance (PMP2)

?> 98dB DNR (Aw, relative to 1% THD + N power

Level)

?135μV output integrated noise (Aw)

?0.006% THD+N at high output levels

?Fourth order feedback error control

? Mitigate supply disruptions

?HD audio quality

? Supply voltage: +4V to +18V (PVDD) and +5V

(A/DVDD)

?Volume control and limiter

?2×40W peak output power (18V PVDD, RL = 4Ω,

10% THD+N level)

?2×20W continuous output power (RL=8Ω at 18V,

PMP4, THD+N level at 10%, no heatsink)

?2.0, 2.1, 4.0, 1.0 output stage configuration

?Protect

?Under voltage lockout

? Overtemperature warning/error

?Short circuit/overload protection

? Short circuit between power stage pins

?Error reporting via serial interface (I2C)

?DC protection

?I2C control (four selectable addresses)

? Heatsink-less operation in EPAD-down package

Bag

?64-pin QFN package with exposed thermal pad

(EPAD)

? Lead-free soldering