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Description of major ICs
AK4527B (IC601) : A/D,D/A Converter
1.Pin layout
SDOS
I2C
SMUTE
BICK
LRCK
SDTI1
SDTI2
SDTI3
SDTO
DAUX
DFS
2. Pin function (1/2)
No.
Pin name
I/O
1
SDOS
I
2
I2C
I
3
SMUTE
I
4
BICK
I
5
LRCK
I/O
6
SDTI1
I
7
SDTI2
I
8
SDTI3
I
9
SDTO
O
10
DAUX
I
11
DFS
I
12
NC
-
13
DZEF
I
14
TVDD
-
15
DVDD
-
16
DVSS
-
17
PDN
I
18
TST
I
1
2
3
4
AK4527BVQ
5
6
7
Top View
8
9
10
11
Function
SDTO Source Select Pin (Note 1)
"L" : Internal ADC output, "H" : DAUX input
Control Mode Select Pin
"L" : 3-wire Serial, "H" : I
Soft Mute Pin (Note 1)
When this pin goes to "H", soft mute cycle is initialized.
When returning to "L", the output mute releases.
Audio Serial Data Clock Pin
Input Channel Clock Pin
DAC1 Audio Serial Data Input Pin
DAC2 Audio Serial Data Input Pin
DAC3 Audio Serial Data Input Pin
Audio Serial Data Output Pin
Sub Audio Serial Data Input Pin
Double Speed Sampling Mode Pin (Note 1)
"L" : Normal Speed, "H" : Double Speed
No Connect
No internal bonding.
Zero Input Detect Enable Pin
"L" : mode 7 (disable) at parallel mode,
zero detect mode is selectable by DZFM2-0 bits at serial mode.
"H" : mode 0 (DZF is AND of all six channels)
Output Buffer Power supply Pin, 2.7V~5.5V
Digital Power Supply Pin, 4.5V~5.5V
De-emphasis Pin, 0V
Power-Down & Reset Pin
When "L", the AK4527B is powered-down and the control registers are reset to default
state. If the state of P/S or CAD0-1 changes, then the AK4527B must be reset by PDN.
Test Pin
This pin should be connected to DVSS.
33
DZF2/OVF
32
RIN+
31
RIN-
30
LIN+
29
LIN-
28
ROUT1
27
LOUT1
26
ROUT2
25
LOUT2
24
ROUT3
23
LOUT3
C Bus
2
RX-E100RSL/RX-E100RSB
AK4527(1/2)
1-9
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