AK4612EQ Datasheet, PDF (63/68 Pages) Asahi Kasei Microsystems – 6/8-Channel Audio CODEC

5.
֎෦Ξφϩάೖྗճ࿏

͜ͷճ࿏ͷೖྗϨϕϧ͸4.3Vpp (AK4612: typ. ±2.15Vpp)Ͱ͢ɻ
5.1kΩ
Analog In
VP+
4.3Vpp
22μ ^10kΩ
VA
10k
0.1μ 10μ
10k
VP-
Bias NJM5532
VA = +3.3V
Bias _{VP+ = +12V}
VP- = -12V
4.7kΩ
4.7kΩ
NJM5532
Bias
2.15Vpp
[AK4612]
AIN+
AK4612
AIN-
Figure 61. Input buffer circuit example 1 (DC coupled single-end input)
͜ͷճ࿏ͷೖྗϨϕϧ͸4.3Vpp (AK4612: typ. ±2.15Vpp)Ͱ͢ɻ
Analog In
4.3Vpp
22μ ^10kΩ
VP+ = +12V
VP- = -12V
5.1kΩ
VP+
VP-
NJM5532
4.7kΩ
4.7kΩ
10μ
NJM5532
2.15Vpp
10μ
2.15Vpp
AIN+
AK4612
AIN-
Figure 62. Input buffer circuit example 2 (AC coupled single-end input)
͜ͷճ࿏ͷೖྗϨϕϧ͸±2.15Vpp (AK4612: typ. ±2.15Vpp)Ͱ͢ɻ
Analog In
2.15Vpp
10μ
AIN+
AK4612
Analog In
2.15Vpp
10μ
AIN-


Figure 63. Input buffer circuit example 3 (AC coupled differential input)


MS1039-J-01
- 63 -
2009/06