AKD4641EN-A Datasheet, PDF (21/54 Pages) Asahi Kasei Microsystems – 16bit stereo CODEC with built-in Microphone-amplifier and 16bit Mono CODEC for Bluetooth Interface.

ASAHI KASEI
[AKD4641EN-A]
Measurement Result
1. 16bit stereo CODEC
[Measurement condition]
• Measurement unit : Audio Precision, System Two
• MCLK
: 256fs
• BICK
: 64fs
• fs
: 44.1kHz
• Bit
: 16bit
• Power Supply
: AVDD=BVDD=DVDD=3.3V
• Measurement Filter : 20Hz ∼ 20kHz
• Temperature
: Room
[Measurement Results]
1.ADC (INT) characteristics (MIC Gain = +20dB, IPGA = 0dB, ALC1 = OFF, MIC Æ IPGA Æ ADC)
[dB]
THD+N 20kHzLPF (-1dB)
83.3
DR
20kHzLPF + A-weighted
86.1
S/N
20kHzLPF + A-weighted
86.1
2.ADC (EXT) characteristics (MIC Gain = +20dB, IPGA = 0dB, ALC1 = OFF, EXT Æ IPGA Æ ADC)
[dB]
THD+N 20kHzLPF (-1dB)
83.3
DR
20kHzLPF + A-weighted
86.1
S/N
20kHzLPF + A-weighted
86.1
3. ADC (AUXIN+ / AUXIN-) characteristics ( MICAD =0, AUXIN+/AUXIN- Æ ADC)
[dB]
THD+N 20kHzLPF (-1dB)
87.6
DR
20kHzLPF + A-weighted
91.1
S/N
20kHzLPF + A-weighted
91.1
4. DAC (LOUT/ROUT) characteristics (R_L=10kΩ, DAC Æ LOUT/ROUT)
L[dB]
R[dB]
THD+N 20kHzLPF (-3dB)
86.4
86.4
DR
20kHzLPF + A-weighted
89.4
89.5
S/N
20kHzLPF + A-weighted
90.7
91.0
5. DAC (MOUT+ / MOUT-) characteristics (R_L=20kΩ, DAC Æ MOUT+ / MOUT-)
MOGN=0[dB] MOGN=1[dB]
THD+N 20kHzLPF (-3dB)
87.7
74.0
DR
20kHzLPF + A-weighted
90.9
76.8
S/N
20kHzLPF + A-weighted
93.0
77.0
6. DAC (MOUT2) characteristics (R_L=10kΩ, DAC Æ MIX Æ MOUT2)
[dB]
THD+N 20kHzLPF (-3dB)
87.9
DR
20kHzLPF + A-weighted
90.7
S/N
20kHzLPF + A-weighted
92.7
<KM082001>
- 21 -
2006/03