AM3E Headphone out specifications (3.5mm headphone out jack)
Output Power 1
≥280 mW（16Ω / THD+N＜1%)
Output Impedance
＜1.2Ω (32Ω loaded)
Output Power 2
≥210 mW（32Ω /THD+N＜1%)
Channel Separation
≥75 dB (1 kHz，AUX IN)
Output Power 3
≥30 mW（300Ω / THD+N＜1%)
THD+N
＜0.002% (1 kHz）
Frequency Response
5 Hz~50 kHz（-3dB）
Peak Output Voltage
＞6 Vp-p
SNR
≥117 dB (A-weighted)
Max. Output Current
150mA (For reference)
Max. Input Level
3.8 Vrms
Balanced headphone out specifications (2.5mm/4.4mm TRRS headphone out jack)
Output Power 1
≥535 mW（16Ω / THD+N＜1%)
Output Impedance
＜2Ω (32Ω loaded)
Output Power 2
≥560 mW（32Ω /THD+N＜1%)
Channel Separation
≥105 dB (1 kHz，AUX IN)
Output Power 3
≥112 mW（300Ω / THD+N＜1%)
THD+N
＜0.002% (1 kHz)
Frequency Response
5 Hz~50kHz（-3dB）
Peak Output Voltage
＞10.5 Vp-p
SNR
≥115 dB (A-weighted）
Max. Output Current
150 mA (For reference)
Max. Input Level
3.8 Vrms
Frequency Response diagram of curves 1.
Test condition: AUX IN, Input amplitude 0.9V, High Gain, Bass=ON/OF, 3.5mm headphone output (32Ω loaded)
Green yellow curve=Bass ON;
Red blue curve=Bass OFF;
Frequency Response diagram of curves 2.
Test condition：AUX IN, Input amplitude 0.45V, High Gain, Bass=OFF, 2.5mm+4.4mm headphone output (32Ω loaded)
Yellow orange curve=Bass ON;
Red blue curve=Bass OFF;
Frequency Response diagram of curves 3.
Test condition: USB IN, Lineout(10 kΩ loaded)
Left channel=Blue curve;
Right channel=Red curve;
Frequency Response diagram of curves 4.
Test condition：USB IN, High Gain,Bass=OFF,3.5mm headphone output (32Ω loaded)
Left channel=Blue curve;
Right channel=Red curve;
Frequency Response diagram of curves 5.
Test condition：USB IN, low Gain, Bass=OFF，2.5mm+4.4mm headphone output (32Ω loaded)
Left channel=Blue curve;
Right channel=Red curve;
Distortion diagram of curves 1.
Test condition：AUX IN, Vin=700mVrms, High Gain, Bass = OFF,
3.5mm headphone output
Distortion diagram of curves 2.
Test condition：AUX IN, Vin=700mVrms, High Gain, Bass = OFF
2.5mm+4.4mm balanced headphone output
Distortion diagram of curves 3.
Test condition：USB IN, play -5 dB sinusoidal signal, 3.5mm headphone output(32Ω loaded)
Distortion diagram of curves 4.
Test condition：USB IN, play -5 dB sinusoidal signal,2.5mm+4.4mmbalanced headphone output(32Ω loaded)
