TDA7803A中文资料高效数字输入汽车级四路功率放大器，具有内置诊断功能，兼容开始/停止数据手册ST规格书

描述 Description

The TDA7803A is a single chip quad bridge amplifier in advanced BCD technology integrating: a full D/A converter, digital input for direct connection to I2S (or TDM) and powerful MOSFET output stages.

The integrated D/A converter allows the performance to reach an outstanding 115 dB S/N ratio with more than 110 dB of dynamic range.

Moreover the TDA7803A integrates an innovative high efficiency concept, optimized also for uncorrelated music signals. The device is designed to be compatible to battery modulation for class-G systems.

Thanks to this concept, the dissipated “output power” under average listening conditions can be reduced up to 50% when compared to the conventional class AB solutions.

The TDA7803A integrates also a programmable PLL that is able to lock at the input frequencies of 64*Fs for all the input configurations.

The device is equipped with a full diagnostics array that communicates the status of each speaker through the I2C bus. The same I2C bus allows to control several configurations of the device.

The TDA7803A is able to play music down to 6 V supply voltage - so it is compatible with the so called 'start stop' battery profile recently adopted by several car makers (thus reducing the fuel consumption and the impact over the environment).

特性 Features

• AEC-Q100 qualified
• 24-bit digital processing
• 115 dB dynamic range (A-weighted)
• SB-I (SB - improved) high efficiency operation the highest ’non - class D’ efficiency
• Parallel mode function availability
• High output power capability:
•4 x 27 W 4 Ω @ 14.4 V, 1 kHz, THD = 10%
•4 x 47 W 2 Ω @ 14.4 V, 1 kHz, THD = 10%
• Flexible mode control:
•Full I2C bus driving 1.8V/3.3V) with four addresses selectable (only for PowerSO36 package option)
•Independent front/rear play/ mute
•Selectable digital gains for very-low noise line-out function
•Digital diagnostic with DC and AC load detections
• Start-stop compatibility (operation down to 6V)
• Sample rates: 44.1 kHz, 48 kHz, 96 kHz, 192 kHz
• Flexible serial data port (1.8 V / 3.3 V):
•I2S standard, TDM 4Ch, TDM 8Ch, TDM 16ch (8+8ch)
• Offset detector
• Independent front/rear clipping detector
• Programmable diagnostic pin
• CMOS compatible enable pin
• Thermal protection
• Pop free in mute to play transitions and viceversa

简介

TDA7803A属于集成电路（IC）的专用IC。由制造生产的TDA7803A专用 IC专用专用集成电路 (IC) 或芯片设计用于执行特定功能。这个类别包括可寻址开关、空芯仪表驱动器、音视频开关、验证芯片、自动放电、时钟发生器、彩色扫描仪，以及各种应用所用的其他许多集成电路。