STMicroelectronics releases Car gauge audio power amplifier chip
The FDA803S and FDA903S are the latest single-channel fully differential 10W Class D audio power amplifiers in the STMicroelectronics FDA (Pure Digital amplifiers) family. Target applications include emergency road rescue, telematics, and any automotive system that requires audio channels to produce voice, music, or prompt messages of up to 10W standard output power.
These amplifiers integrate I2S front-end circuitry, a digital core, a 100dB resolution 24-bit digital-to-analog converter (DAC), and a Class D PWM output stage. The on-chip digital audio processor ensures that the amplifier achieves high sound quality in a small area. The internal feedback circuit of the chip is placed in front of the external L-C output filter, which can simplify the circuit design and save space.
Both amplifiers have full I2C configuration features and in-run diagnostics, including clipping detection, overheating warning, overcurrent protection and open-circuit load detection, to minimize external component and bill of material costs. The FDA903S also integrates A real-time load current monitor, enabling self-diagnostics to meet ASIL Class A safety requirements for functional safety applications.
Both devices are packaged in QFN32 5mm x 5mm bare underpad, enabling a compact and economical digital-only design without the need for a radiator. A small number of devices, radiator-free solution minimizes the size of the power amplifier. Low static current, compact, lightweight, low power consumption and other product advantages help improve the overall energy efficiency of the vehicle.
Both the FDA803S and the FDA903S have an I2S digital input and Time Division Multiplexing (TDM) interface with sampling frequencies ranging from 8kHz to 96kHz to optimize amplifier performance when connected to a wide range of audio sources. The low sampling frequency of 8kHz to 32kHz enables designers to conserve memory capacity in application scenarios such as warning tone generators.
Die Produkte, an denen Sie interessiert sein könnten
 |
3103 | JOYSTICK 10K OHM 2 AXIS PNL MT | 3618 More on Order |
 |
3845 | 3X4 MATRIX KEYPAD | 7542 More on Order |
 |
3105 | PUSHBUTTON BLUE POWER SYMBOL MOM | 4932 More on Order |
|
3983 | MINI SOFT TOUCH PUSH-BUTTON SWIT | 2952 More on Order |
|
3984 | PLATINUM RTD SENSOR - PT1000 - 3 | 7452 More on Order |
 |
3721 | DIGITAL TEMPERATURE AND HUMIDITY | 5958 More on Order |
 |
982 | MAXSONAR RANGEFINDER LV-EZ4 | 2574 More on Order |
 |
3686 | SENSOR AIR QUALITY | 7686 More on Order |
 |
3803 | ADDRESS LED 64X32 FLEX RGB MATRX | 4716 More on Order |
 |
1547 | ADDRESS LED STRIP SPI RGB 2080MM | 6372 More on Order |
 |
1938 | ADDRESS LED DISCRETE SER RGB 5MM | 512 More on Order |
 |
2872 | ADDRESS LED MATRIX SERIAL RGBW | 4932 More on Order |
 |
3631 | ADDRESS LED STRIP RGBW | 5328 More on Order |
 |
881 | ADDRESS LED 7 SEG I2C BLUE | 7326 More on Order |
 |
2758 | ADDRESS LED DISCR SER RGBW 1=10 | 7902 More on Order |
 |
1612 | ADDRESS LED MODULE SER RGB 1=5 | 7488 More on Order |
 |
3853 | CONVEX GLASS LENS WITH EDGE - 40 | 7470 More on Order |
 |
4169 | FIBER OPTIC LIGHT SOURCE 1W PINK | 4320 More on Order |
 |
2232 | HDMI DISPLAY BACKPACK W/O TOUCH | 6696 More on Order |
 |
315 | LED RGB DIFF 5MM RND T/H 1=25PC | 7650 More on Order |
 |
1451 | LED RGB DIFF 5MM ROUND T/H 1=10 | 6900 More on Order |
 |
784 | USB + SERIAL BACKPACK KIT | 4446 More on Order |
 |
832 | POCKET INVERTER EL 12V SOUND-ACT | 84 More on Order |
 |
1820 | LED MATRIX 8X8 SQUARE GREEN | 2268 More on Order |