AK4612EQ Datasheet, PDF (64/68 Pages) Asahi Kasei Microsystems – 6/8-Channel Audio CODEC

͜ͷճ࿏ͷೖྗϨϕϧ͸±2.15Vpp (AK4612: typ. ±2.15Vpp)Ͱ͢ɻ
[AK4612]
Analog In
2.15Vpp
AIN+
10μ
AK4612
Open
AIN-
Figure 64. Input buffer circuit example 4 (AC coupled single-end input)
6.
֎෦Ξφϩάग़ྗճ࿏



͜ͷճ࿏ͷग़ྗϨϕϧ͸4.16Vpp (AK4612: typ. ±2.08Vpp)Ͱ͢ɻ
2.08Vpp
AOUT-
20Ω A 4.7kΩ
AK4612
AOUT+
2.08Vpp
2200p
20Ω
B
3900p
4.7kΩ
4.7kΩ
4.7kΩ
R1
470p
VP+
R1
470p
VP- _{VP+ = +12V}
NJM5532 _{VP- = -12V}
Analog Out
4.16Vpp
When R1=200Ω
fc=93.2kHz, Q=0.712, g=-0.1B at 40kHz
When R1=180Ω
fc=98.2kHz, Q=0.681, g=-0.2dB at 40kHz
Figure 65. Output buffer circuit example 1 (DC coupled differential output)
͜ͷճ࿏ͷग़ྗϨϕϧ͸4.16Vpp (AK4612: typ. ±2.08Vpp)Ͱ͢ɻ
2.08Vpp
AOUT-
AK4612
AOUT+
2.08Vpp
20Ω A
4.7kΩ
22μ
2200p
3900p
20Ω
4.7kΩ
B 22μ
4.7kΩ
4.7kΩ
R1
R1
470p
470p
VP+
Analog Out
4.16Vpp
VP- _{VP+ = +12V}
NJM5532
VP- = -12V
When R1=180Ω
fc=90.1kHz, Q=0.735, g=-0.04B at 40kHz
When R1=150Ω
fc=99.0kHz, Q=0.680, g=-0.23dB at 40kHz
Figure 66. Output buffer circuit example 2 (AC coupled differential output)
MS1039-J-01
- 64 -
2009/06