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iCODEC
Stereo Audio and Dual PCM
Portable Audio Applications
Stereo with Flexible I/O
www.akm.com
AK4671
• 4: stereo input and MIC selector
• MIC amp: +0dB to -1dB, dB/step
• Input ALC: +6dB to -54dB, 0.75dB/step
• 5-band EQ/notch filter, stereo separation
• 0mW headphone amp
• Dual PCM CODEC: linear, A-Law, µ-Law
• Integrated PLL and 10-bit SAR ADC
• 57-pin BGA package
Bits
AK4568
AK4569
AK4631
AK4632
AK4633
AK4634
AK4635
AK4640
AK4641
AK4642E
AK4643
AK4644
AK4645
AK4646
AK4647
AK4648
AK4651
AK4665A
AK4671
20
20
16
16
16
16
16
16
16
16
16
16
16
24
24
24
16
20
24
AK4645
• 4 stereo input and MIC selector
• MIC amp: +dB/+6dB/+0dB/0dB
• 70mW headphone amp
• Pop-noise free at power-on/off
• Programmable EQ, bass boost, soft mute
• Integrated PLL
• Digital interface level: 1.6V to .6V
• -pin QFN package
Temp Range
Power
VA
2.8
2.5 ~3.6
3.3
3.3
2.2 ~ 3.6
2.2 ~ 3.6
2.2 ~ 3,6
2.4 ~ 3.6
2.6 ~ 3.6
2.6 ~ 3.6
2.6 ~ 3.6
2.6 ~ 3.6
2.6 ~ 3.6
2.2 ~ 3.6
2.6 ~ 3.6
2.6 ~ 3.6
2.7 ~ 3.6
3.3
2.2 ~ 3.6
Performance
Dynamic Range
Max fs
ADC
DAC
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
93
89
85
85
85
85
85
83
86
95
95
95
95
95
95
95
83
93
95
87
90
93
93
93
93
93
95
90
92
92
92
92
92
92
92
95
88
92
Control
Interface
4-wire
3-wire
3-wire
3-wire
3-wire
3-wire
3-wire / HW
4-wire / I
2
C
I
2
C
3-wire / I
2
C
3-wire / I
2
C
3-wire / I
2
C
3-wire / I
2
C
3-wire
3-wire / I
2
C
I
2
C
AC-Link
3-wire
4-wire / I
2
C
Pack
Pins
64
28
28
32
24
28
28
57 / 52
36
32
32
32
32
32
48
47
57
32
57
THD
ADC
DAC
-87
-84
-80
-80
-84
-84
-84
-79
-81
-88
-88
-88
-88
-88
-88
-88
-75
-90
-87
-82
-84
-85
-85
-85
-85
-85
-89
-86
-88
-88
-88
-88
-88
-88
-88
-85
-84
-85
Low
-40
-40
-10
-10
-40
-30
-30
-10
-20
-30
-30
-30
-30
-30
-40
-30
-30
-30
-30
High
85
85
70
70
85
85
85
70
85
85
85
85
85
85
85
70
85
85
85
mW
120
50
53
78
40
TBD
TBD
103
56
50
50
50
69
TBD
66
147
60
66
TBD
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