Parameter introduction; The amp module requires DC dual 9 to dual 20 power supply, 1.5 to 2 times magnification, thrust, these are enough, the sound quality is also very good, very cool. Transformer dual 12 to dual 15V need rectifier filter voltage regulator DC dual 12 to dual 15V can be powered, specifically push 16 ohms to 600 ohm headphones.
Professional chip introduction; TI's professional amp chip, with high resolving power, open sound field characteristics, distortion, noise and other super low, the sound is very delicate, delicate, soft, low noise to high sensitivity earplugs can not hear a trace Noise. There is no problem with headphones that push the impedance below 600 ohms. Thermally enhanced 20-lead SOIC package, wide supply voltage range: ±5V to ±15V, independent power supply for each channel; operating current (VCC=±15V, per channel, maximum): 15mnA; ±12V power supply Driving 600Ω load with 80mW power and typical THD+N value of 0.00014%; IMD (transient intermodulation distortion): 0.00014%, typical value; DNR (dynamic range) and SNR (signal to noise ratio): 120dB; 2V/V gain Under the conditions, the output noise is typically 5μV; SR (slew rate): 1300V/μs; CMRR: 100dB; PSRR (power supply rejection ratio): 75dB; input offset voltage (differential input): 2mV, maximum not exceeding 5mV. Crosstalk suppression capability (VIN = 1VRMS, RL = 32Ω ~ 64Ω, RF = 1Kω, fIN = 1KHZ): -90dB.
The main technical features:
* Operating voltage range; ± 5V ~ ± l5Vt
* Output power (Vcc = ± l2V, Rl = 600Ω, THD + N≤0.00014%): 80mW x 2)
* Output load range: not less than 16Ω;
Rl = 32 Ω: 0 00055%;.
Rl = 64 Ω: 0. 00038% ;
* IMD (transient intermodulation distortion, Vcc = ± l2V, RL = 32Ω, typical): 0.00014%;
* Slew Rate (Vcc= ±5V, RL=25Ω, Av=2V/V, Typical): 900V/μs;
* PSRR (power supply voltage rejection ratio, Vcc = ± l2V, RL = 32Ω, typical): 80dB;
CMRR (common-mode voltage rejection ratio, typical value): lOOdB;
* SNR (Signal to Noise Ratio, Vcc = ±12V, RL = 32Ω, Av = 2V/V, typical): l25dB;
* Dynamic Range (Vcc = ± l2V, RL = 32 C2, typ): not less than l23dB;
* Output Noise (Av=2V/V): 5μV.