ASAHI KASEI
[AK4651]
PIN/FUNCTION
No.
A1
B1
C1
C2
D1
D2
E1
E2
F2
F1
G2
G1
H1
Pin Name
NC
DVDD1
XTI
MCKI
XTO
PLL0
DVSS1
SDATAOUT
BITCLK
DVSS2
SDATAIN
DVDD2
SYNC
RESETN
PLL1
I/O
-
-
I
I
O
I
-
I
O
-
O
-
I
I
I
Function
No Connect Pin
No internal bonding. This pin should be open or connected to the ground.
Digital Power Supply 1 Pin
X’tal Input Pin
External Master Clock Input Pin
X’tal Output Pin (PLL1 pin = “L”)
PLL Input Master Clock Frequency Select 0 Pin (PLL1 pin = “H”)
“L”: 3.6864MHz, “H”: 12MHz
Digital Ground 1 Pin
Serial 256-bit AC’97 data stream from digital controller
12.288MHz(256fs) serial data clock
Digital Ground 2 Pin
Serial 256-bit AC’97 data stream to digital controller
Digital Power Supply 2 Pin
AC’97 Sync Clock, 48kHz(1fs) fixed rate sampling rate
AC’97 Master Hardware Reset
PLL Input Master Clock Frequency Select 1 Pin
“L”: 24.576MHz (PLL0 pin = “L”)
“H”: 3.6864MHz (PLL0 pin = “L”) or 12MHz (PLL0 pin = “H”)
When PLL1 pin = “H”, X’tal oscillation circuit is not available.
Test Pin
This pin should be connected to the ground.
ALC Input Pin
Analog Mixing Output Pin
Mute Time Constant Control Pin
Connected to HVSS pin with a capacitor for mute time constant.
Headphone Detect Pin (Internal pull up by 100kΩ)
Speaker Amp Positive Output Pin
Speaker Amp Negative Output Pin
Headphone & Speaker Amp Ground Pin
Headphone & Speaker Amp Power Supply Pin
Rch Headphone Amp Output Pin
Lch Headphone Amp Output Pin
Mono Line Negative Output Pin
Mono Line Positive Output Pin
Analog Input Pin
No Connect Pin
No internal bonding. This pin should be open or connected to the ground.
J1
J2
H2
H3
J3
H4
J4
H5
J5
J6
H6
H7
J7
H8
J9
TEST
MIN
MOUT2
MUTET
HDT
SPP
SPN
HVSS
HVDD
HPR
HPL
MOUT−
MOUT+
AIN
NC
-
I
O
O
I
O
O
-
-
O
O
O
O
I
-
MS0503-E-00
-5-
2006/04
AKM [ ASAHI KASEI MICROSYSTEMS ]
