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TAS5622A Datasheet(PDF) 2 Page - Texas Instruments |
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TAS5622A Datasheet(HTML) 2 Page - Texas Instruments |
2 / 33 page Introduction www.ti.com 1 Introduction The TAS5622-TAS5624DDVEVM PurePath™ EVM demonstrates the current version of TAS5622DDV or TAS5624DDV integrated circuit power stage with TAS5538DGG from Texas Instruments (TI). The TAS5622 and TAS5624 are high-performance, integrated Stereo Feedback Digital Amplifier Power Stages designed to drive 3 Ω speakers at up to 200W per channel for TAS5624DDV and 165W per channel for TAS5622DDV. They require only a passive demodulation filter to deliver efficient high quality audio amplification. TAS5538DGG is a high performance 32 bit (24 bit input) multi channel PurePath™ Digital Pulse Width Modulator (PWM) with fully symmetrical AD modulation scheme. The device also has Digital Audio Processing (DAP) that provides 48 bit signal processing, advanced performance and a high level of system integration. This EVM can be configured as 2 BTL channels for stereo evaluation or 1 PBTL (parallel BTL) channel for subwoofer evaluation. Together with a TI Input-USB Board 3, it provides a complete stereo digital audio amplifier system which includes digital input (S/PDIF), analog inputs, interface to PC and DAP features like digital volume control, input and output mixers, automute, tone controls, loudness, EQ filters and dynamic range compression (DRC). There are configuration options for power stage failure protection. NOTE: TAS5622-TAS5624DDVEVM IS SHIPPED WITH THE CURRENT VERSION OF TAS5624 INSTALLED. TO EVALUATE THE CURRENT VERSION OF TAS5622 PLEASE VISIT THE PRODUCT FOLDER AT www.ti.com AND REQUEST A FREE SAMPLE, AND REPLACE TAS5624 WITH TAS5622. Table 1. TAS5622-TAS5624DDVEVM Specification Key Parameters Values TAS5624 Power Supply Voltage 12 - 38 Vdc TAS5622 Power Supply Voltage 12 - 34 Vdc Number of Channels 2 x BTL or 1 x PBTL Load Impedance BTL 3-8 Ohm Load Impedance PBTL 1.5-4 Ohm TAS5624 Output power BTL 200W / 3Ohm / 10%THD+N TAS5624 Output power PBTL 400W / 1.5Ohm / 10%THD+N TAS5622 Output power BTL 165W / 3Ohm / 10%THD+N TAS5622 Output power PBTL 325W / 1.5Ohm / 10%THD+N Dynamic Range (DNR) >105 dB PWM Processor TAS5538DGG Output Stage TAS5624DDV or TAS5622DDV NOTE: The heatsink in TAS5622-TAS5624DDVEVM is designed to comply with time requirements of the “Amplifier Rule”, US Federal Trade Commission 16 CFR 432, when the EVM is operated at power levels specified above. If continuous operation at specified output power is required it is necessary to provide forced air flow through the heatsink. (The FTC regulation specifies operation in 25°C ambient temperature for one hour at 1/8 specified output power (25.0W per channel for TAS5624DDVEVM, 20.63W per channel for TAS5622DDVEVM) and then for 5 minutes at specified output power (200W per channel for TAS5624DDVEVM, 165W per channel for TAS5622DDVEVM). Then distortion vs. output power can be measured. TAS5622-TAS5624DDVEVM provides specified output power for several minutes or more without thermal shutdown. THD is not specified for this test but is typically near 10%.) 2 TAS5622-TAS5624DDVEVM SLAU376 – May 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated |
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