AKD4645-B Datasheet, PDF (18/40 Pages) Asahi Kasei Microsystems – Stereo CODEC with built-in MIC/HP amplifier

ASAHI KASEI
MEASUREMENT RESULTS
1. EXT mode (slave mode)
[Measurement condition]
● Measurement unit: Audio Precision, System two Cascade
● EXT Slave Mode
● MCLK: 256fs
● BICK: 64fs
● Bit: 16bit
● Measurement Frequency: 20Hz ∼ 20kHz
● Power Supply: AVDD=DVDD=HVDD=TVDD=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)
88.7
83.6
88.5
83.5
DR
20kHzLPF + A-weighted 95.6
87.1
95.6
87.1
S/N 20kHzLPF + A-weighted 95.6
87.1
95.6
87.1
DAC (LOUT/ROUT) characteristics (R_L=20kΩ, DAC Æ LOUT/ROUT)
L[dB] R[dB]
S/(N+D) 20kHzLPF (−3dB)
88.3
88.1
S/N 20kHzLPF + A-weighted 94.4
94.4
[AKD4645-B]
<KM084500>
- 18 -
2006/07