Triad Semiconductor’s TS8001 is an ultra-low noise, low quiescent current stereo headphone amplifier optimized for audiophile-quality performance in portable consumer applications. The device incorporates the ultra-low distortion Achromatic Audio Amplifier from THX® Technology (THX AAA™) to virtually eliminate crossover distortion and deliver superior THD and SNR at all output levels. The ClassG architecture maximizes battery life by automatically varying the supply voltage of the headphone amplifier based on the audio signal level. The ground-centered, “Capless” output implementation eliminates the need for large external DC-blocking capacitors between the audio amplifiers and the headphone loads to save board area, reduce cost, and improve low frequency audio fidelity.
The headphone amplifier features fully differential inputs with integrated low pass filtering to reduce system noise. Built-in active suppression eliminates clicks and pops as the amplifier is powered up and down. The amplifier outputs have robust short-circuit, thermal overload, and ESD protection.
The TS8001 is available in a tiny 25-bump wafer level chip scale package (WLCSP, 2.4mm x 2.4mm, 0.4mm pitch). The device operates from a 2.5V to 5.5V supply input and is specified over the -40C to +85C extended temperature range.
|Amplifier Supply Voltage|
Positive Supply Voltage: 1.0V – 5.5V
Operational Quiescent Current (no input signal): 4.0mA
|Output Power Per Channel (Outputs in Phase)|
AVDD, AVEE = +/-2.5V, THD <1%, freqAUD = 1kHz, Rload = 36 Ohms: 63mW (min)
|Total Harmonic Distortion (THD)|
Po = 40mW, freqAUD = 1kHz, Rload = 16 Ohms: 0.0001%, -120dB
|Total Harmonic Distortion plus Noise (THD+N)|
Po = 40mW, freqAUD = 1kHz, Rload = 16 Ohms, A-Weighted: 0.00030%, -110dB
|Signal-to-Noise Ratio (SNR)|
AVDD, AVSS = +/-3.6V, A-Weighted, <1% clipping distortion,
|Additional Technical Data|
See the TS8001 Datasheet for additional technical data
|Triad Part Number||Description|
|TS8002||THX Split Rail Audio Power Management IC|