AKD4641EN-A Datasheet, PDF (22/54 Pages) Asahi Kasei Microsystems – 16bit stereo CODEC with built-in Microphone-amplifier and 16bit Mono CODEC for Bluetooth Interface.

ASAHI KASEI
2. 16bit Mono CODEC
[Measurement condition]
• Measurement unit : ROHDE & SCHWARZ, UPD05
• BBICK
: 32fs
• fs
: 8kHz
• Bit
: 16bit
• Power Supply
: AVDD=BVDD=DVDD=3.3V
• Measurement Filter : 20Hz ∼ 4kHz
• Temperature
: Room
[Measurement Results]
1. ADC (AUXIN) characteristics ( MICAD =0, AUXIN Æ Mixer Æ ADC, AUX Volume = 0dB)
[dB]
THD+N 20kHzLPF (-1dB)
78.5
DR
20kHzLPF + A-weighted
88.7
S/N
20kHzLPF + A-weighted
88.9
2. DAC (MOUT) characteristics (R_L=20kΩ, DAC Æ MOUT, ATT = 0dB)
[dB]
THD+N 20kHzLPF (-0dB)
78.9
DR
20kHzLPF + A-weighted
91.4
S/N
20kHzLPF + A-weighted
92.0
3. Loop-back (AUXIN Æ ADC Æ DAC Æ MOUT)
[dB]
THD+N 20kHzLPF (-3dB)
76.7
DR
20kHzLPF + A-weighted
87.9
S/N
20kHzLPF + A-weighted
88.0
[AKD4641EN-A]
<KM082001>
- 22 -
2006/03