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4 TAS5176DDW6EVM Performance
TAS5176DDW6EVM Performance
Table 4. General Test Specifications
General Test Conditions Notes
Output Stage Supply Voltage 28 V Laboratory Power Supply (EA-PS 7065-10A)
System Supply Voltage 15 V
Load Impedance Front/Satellites 8 Ω
Load Impedance Subwoofer 4 Ω
Input Signal 1-kHz Sine
Sampling Frequency 48 kHz
Gain Setting in TAS5086 0 dB
Measurement Filter AES17
TI Input-USB Board Input-USB Rev 10
EVM Configuration File Version 1.00 TAS5176DDW6EVM Configuration (1.00).cfg
Table 5. TAS5086 Register Settings
(1)
Register Register Value Notes
Oscillator Trim Register 0x1B 00 Initiate factory trim
Split Cap Register 0x1A 1F Set split-cap charge period to 9.6 sec
Master Volume Register 0x07 4E Master volume set to -15 dB
Modulation Limit Register 0x10 04 Modulation Index set to 96.1%
PWM Start Register 0x18 3F Channel 1-6 set to start part 1
System Control Register 0x05 20 PWM start
(1)
These register settings are used for all tests, unless otherwise specified.
Table 6. Electrical Data
Electrical Data Notes/Conditions
Ch 1-5 Output Power, 8 Ω 10 W 1 kHz, unclipped (0 dBFS), T
A
= 25 ° C
Ch 1-5 Output Power, 8 Ω : (10% THD+N) 12 W 1 kHz, T
A
= 25 ° C
Ch 6 Output Power, 4 Ω 20 W 1 kHz, unclipped (0 dBFS), T
A
= 25 ° C
Ch 6 Output Power, 4 Ω : (10% THD+N) 24 W 1 kHz, T
A
= 25 ° C
Ch 1-5 Maximum Peak Current >4 A 1 kHz burst, 1 Ω , R
OC
= 27 k Ω
Ch 6 Maximum Peak Current >6 A 1 kHz burst, 1 Ω , R
OC
= 27 k Ω
Ch 1-5 Damping Factor 16 1 kHz, relative to 8 Ω load
Ch 6 Damping Factor 14 1 kHz, relative to 4 Ω load
Output Stage Efficiency 88% 1 kHz, 2 × 7.5 W, 4 Ω + 1 × 16 W
System Supply Current <150 mA 1 kHz, –60 dBFS signal (with TI Input-USB Board)
H-Bridge Supply Current <100 mA 1 kHz, –60 dBFS signal
Total Board Idle Power Consumption 5 W H-Bridge supply + System supply, –60dBFS signal
TAS5176DDW6EVM 10 SLOU209A – September 2007 – Revised October 2007
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