
[AK4648]
MS0625-E-01
2007/06
- 7 -
PIN/FUNCTION
No.
Pin Name
I/O
Function
A1, D4,
D5, E4,
E5, G1
G7
A2
A4
NC
-
No Connection Pin
This should be connected to ground (VSS1, VSS2 or VSS3 pin).
HVDD
SPRP
ROUT
LON
LIN4
IN4+
-
O
O
O
I
I
Headphone Amp Power Supply Pin, 2.6
~
5.0V
Rch Speaker-Amp Positive Output Pin
Rch Stereo Line Output Pin (LODIF bit = “0”: Single-ended Stereo Output)
Negative Line Output Pin (LODIF bit = “1”: Full-differential Mono Output)
Lch Analog Input 4 Pin (L4DIF bit = “0”: Single-ended Input)
Positive Line Input 4 Pin (L4DIF bit = “1”: Full-differential Input)
Test Pin
This pin should be open.
Lch Speaker-Amp Negative Output Pin
Lch Speaker-Amp Positive Output Pin
Ground 2 Pin
Rch Speaker-Amp Negative Output Pin
Lch Stereo Line Output Pin (LODIF bit = “0”: Single-ended Stereo Output)
Positive Line Output Pin (LODIF bit = “1”: Full-differential Mono Output)
Rch Analog Input 2 Pin (MDIF2 bit = “0”: Single-ended Input)
Microphone Negative Input 2 Pin (MDIF2 bit = “1”: Full-differential Input)
Common Voltage Output Pin, 0.45 x AVDD
Bias voltage of ADC inputs and DAC outputs.
Headphone-Amp Common Voltage Output Pin
Rch Analog Input 4 Pin (L4DIF bit = “0”: Single-ended Input)
Negative Line Input 4 Pin (L4DIF bit = “1”: Full-differential Input)
Lch Analog Input 2 Pin (MDIF2 bit = “0”: Single-ended Input)
Microphone Positive Input 2 Pin (MDIF2 bit = “1”: Full-differential Input)
Mono Signal Input Pin (AIN3 bit = “0”: PLL is available.)
Lch Analog Input 3 Pin (AIN3 bit = “1”: PLL is not available.)
Analog Power Supply Pin, 2.6
~
3.6V
Mute Time Constant Control Pin
Connected to VSS2 pin with a capacitor for mute time constant.
Rch Headphone-Amp Output Pin
Lch Headphone-Amp Output Pin
Ground 1 Pin
Lch Analog Input 4 Pin (MDIF1 bit = “0”: Single-ended Input)
Microphone Negative Input 1 Pin (MDIF1 bit = “1”: Full-differential Input)
Ground 3 Pin
Power-Down Mode Pin
“H”: Power-up, “L”: Power-down, reset and initializes the control register.
Digital Power Supply Pin, 2.6
~
3.6V
Output Pin for Loop Filter of PLL Circuit (AIN3 bit = “0”: PLL is available.)
This pin should be connected to VSS1 with one resistor and capacitor in series.
Rch Analog Input 3 Pin (AIN3 bit = “1”: PLL is not available.)
MIC Power Supply Pin
External Master Clock Input Pin
Digital I/O Power Supply Pin, 1.6
~
3.6V
Audio Serial Data Output Pin
Control Data Input/Output Pin
Rch Analog Input 1 Pin (MDIF1 bit = “0”: Single-ended Input)
Microphone Positive Input 1 Pin (MDIF1 bit = “1”: Full-differential Input)
A5
A6
A7
TEST
O
B1
B2
SPLN
SPLP
VSS2
SPRN
LOUT
LOP
RIN2
IN2
O
O
-
O
O
O
I
I
B3, C1
B4
B5
B6
B7
VCOM
O
C2
HVCM
RIN4
IN4
LIN2
IN2+
MIN
LIN3
AVDD
O
I
I
I
I
I
I
-
C4
C5
C6
C7
D1
MUTET
O
D2
D3
D6
HPR
HPL
VSS1
LIN1
IN1
VSS3
O
O
-
I
I
-
D7
E1
E2
PDN
I
E3
DVDD
-
VCOC
O
E6
RIN3
MPWR
MCKI
TVDD
SDTO
SDA
RIN1
IN1+
I
O
I
-
O
I/O
I
I
E7
F1
F2, G2
F3
F4
F5