ASAHI KASEI
AKM CONFIDENTIAL
[AK4561]
PIN/FUNCTION
No. Pin Name
Power Supply
17 VREF
18 VCOM
19 AGND
20 VA
28 VD
29 DGND
30 VT
37 VCOM_H
42 HVDD
52 MPWR
55 MRF
56 MVCM
57 MVSS
58 MVDD
Operation Clock
22 BCLK
23 LRCK
24 MCLK
25 SDTI
26 SDTO
MIC Block
1 INV_O_R
2 EQ_N_L
3 EQ_O_L
4 HPF_P1_L
5 HPF_P2_L
6 HPF_O_L
44 HPF_O_R
45 HPF_P2_L
46 HPF_P1_L
47 EQ_O_R
48 EQ_N_R
49 INV_O_L
50 PRE_O_R
51 PRE_N_R
53 EXT_MIC_R
54 INT_MIC_R
60 INT_MIC_L
61 EXT_MIC_L
62 MIC_B
63 PRE_N_L
64 PRE_O_L
I/O
O
O
-
-
-
-
-
O
-
O
O
O
-
-
I
I
I
I
O
O
I
O
I
I
O
O
I
I
O
I
O
O
I
I
I
I
I
I
I
O
Function
ADC, DAC Reference Level, 0.5 x VA
Common Voltage Output Pin, 0.5 x VA
Analog Ground Pin
Analog Power Supply Pin, +2.8V
Digital Power Supply Pin, +2.8V
Digital Ground Pin
Digital I/F Power Supply Pin, +2.8V
LINEOUT Common Voltage Output Pin, 0.5 x HVDD
LINEOUT Power Supply Pin, +4.5V
MIC Power Supply Pin, +2.0V, Idd=3mA(max)
MIC Power Supply Ripple Filter Pin
MIC Block Common Voltage Output Pin, 0.5 X MVDD
MIC Block Ground Pin
MIC Block Power Supply Pin
Audio Serial Data Clock Pin
Input/Output Channel Clock Pin
Master Clock Input Pin
Audio Serial Data Input Pin
Audio Serial Data Output Pin
Rch Inverter-Amp Output Pin
Lch EQ-Amp Negative Input Pin
Lch EQ-Amp Output Pin
Lch HPF-Amp Positive #1 Input Pin
Lch HPF-Amp Positive #2 Input Pin
Lch HPF Output Pin
Rch HPF Output Pin
Lch HPF-Amp Positive #2 Input Pin
Lch HPF-Amp Positive #1 Input Pin
Rch EQ-Amp Output Pin
Rch EQ-Amp Negative Input Pin
Lch Inverter-Amp Output Pin
Rch Pre-Amp Output Pin
Rch Pre-Amp Negative Input Pin
Exteranl MIC Rch Input Pin
Internal MIC Rch Input Pin
Internal MIC Lch Input Pin
External MIC Lch Input Pin
MIC-Amp Bias Pin
Lch Pre-Amp Negative Input Pin
Lch Pre-Amp Output Pin
Note: All input pins should not be left floating.
Rev. 0.9
-4-
2000/09
AKM [ ASAHI KASEI MICROSYSTEMS ]
