AKD4643-B Datasheet, PDF (17/40 Pages) Asahi Kasei Microsystems – Stereo CODEC with built-in MIC/HP/RCV/SPK amplifier

ASAHI KASEI
MEASUREMENT RESULTS
1. EXT mode (slave mode)
[Measurement condition]
● Measurement unit: Audio Precision, System two Cascade
● EXT Slave Mode
● BICK: 64fs
● Bit: 16bit
● Measurement Frequency: 20Hz ∼ 20kH
● Power Supply: AVDD=DVDD=HVDD=3.3V
● Temperature: Room
● Input Frequency: 1kHz
● Sampling Frequency: 44.1kHz
[Measurement Results]
ADC (LIN2/RIN2) characteristics (IVOL=0dB, ALC1 = OFF, LIN2/RIN2 Æ ADC Æ IVOL)
L[dB]
R[dB]
MIC-Amp Gain
0dB +20dB 0dB +20dB
S/(N+D) 20kHzLPF (−1dB)
90.8
90.2
84.3
84.2
DR
20kHzLPF + A-weighted 95.6
95.6
87.4
87.4
S/N 20kHzLPF + A-weighted 95.7
95.7
87.4
87.4
DAC (LOUT/ROUT) characteristics (R_L=10kΩ, DAC Æ LOUT/ROUT)
L[dB] R[dB]
S/(N+D) 20kHzLPF (−3dB)
89.7
89.7
S/N 20kHzLPF + A-weighted 94.6
94.6
[AKD4643-B]
<KM082400>
- 17 -
2005/12