Audio Modules & Development Tools HI PERF MULTI PWM

TAS5508-5142K7EVM

Manufacturer Part NumberTAS5508-5142K7EVM
DescriptionAudio Modules & Development Tools HI PERF MULTI PWM
ManufacturerTexas Instruments
TAS5508-5142K7EVM datasheet
 


Specifications of TAS5508-5142K7EVM

Description/functionAudio AmplifiersProductAudio Modules
For Use With/related ProductsTAS5508B, TAS5142Lead Free Status / RoHS StatusLead free / RoHS Compliant
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This chapter describes the TAS5508-5142K7EVM board in regards to power supplies
and system interfaces.
2.1
Power Supply (PSU) Interface (J901 and J900)
The TAS5508-5142K7EVM module must be powered from external power supplies. High-end audio
performance requires a stabilized power supply with low ripple voltage and low output impedance.
Note:
The length of power-supply cable must be minimized. Increasing length of PSU cable is
equal to increasing the distortion for the amplifier at high output levels and low
frequencies.
Maximum output-stage supply voltage depends of the speaker load resistance. Please check the
recommended maximum supply voltage in the TAS5142 data sheet.
DESCRIPTION
System power supply
Output-stage power supply
(1)
The rated current correspond to 2-channel full scale (80 W each), which most likely is adequate for
a standard 8-channel amplifier design.
The recommended TAS5142 power-up sequence is shown in the figure below. For proper TAS5142
operation, the RESET signal should be kept low during power up. RESET is pulled low during power up
for 200 ms by the onboard reset generator (U73).
System power supply
Output stage power supply
RESET
Figure 2-1. Recommended Power-Up Sequence
SLEU071 – June 2006
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Table 2-1. Recommended Supply Voltages
VOLTAGE
CURRENT RECOMMENDATIONS
LIMITATIONS
15 V to 20 V
0 V to 32 V
>1ms
4
3
2
1
(PCB connector top view)
Figure 2-2. J901 and J900 Pin Numbers
Chapter 2
SLEU071 – June 2006
System Interfaces
0.3 A
(1)
6 A
System Interfaces
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