AK4642EN Datasheet, PDF (7/83 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/HP/SPK-AMP

ASAHI KASEI
[AK4642EN]
PIN/FUNCTION
No. Pin Name
I/O
Function
1 MPWR
O MIC Power Supply Pin
2 VCOM
O
Common Voltage Output Pin, 0.45 x AVDD
Bias voltage of ADC inputs and DAC outputs.
3 AVSS
- Analog Ground Pin
4 AVDD
- Analog Power Supply Pin
5 VCOC
O
Output Pin for Loop Filter of PLL Circuit
This pin should be connected to AVSS with one resistor and capacitor in series.
6 I2C
I
Control Mode Select Pin
“H”: I²C Bus, “L”: 3-wire Serial
7 PDN
I
Power-Down Mode Pin
“H”: Power-up, “L”: Power-down, reset and initializes the control register.
8
CSN
CAD0
I Chip Select Pin (I2C pin = “L”)
I Chip Address 1 Select Pin (I2C pin = “H”)
9
CCLK
SCL
I Control Data Clock Pin (I2C pin = “L”)
I Control Data Clock Pin (I2C pin = “H”)
10
CDTI
SDA
I Control Data Input Pin (I2C pin = “L”)
I/O Control Data Input Pin (I2C pin = “H”)
11 SDTI
I Audio Serial Data Input Pin
12 SDTO
O Audio Serial Data Output Pin
13 LRCK
I/O Input / Output Channel Clock Pin
14 BICK
I/O Audio Serial Data Clock Pin
15 DVDD
- Digital Power Supply Pin
16 DVSS
- Digital Ground Pin
17 MCKI
I External Master Clock Input Pin
18 MCKO
O Master Clock Output Pin
19 SPN
O Speaker Amp Negative Output Pin
20 SPP
O Speaker Amp Positive Output Pin
21 HVDD
- Headphone & Speaker Amp Power Supply Pin
22 HVSS
- Headphone & Speaker Amp Ground Pin
23 HPR
O Rch Headphone-Amp Output Pin
24 HPL
O Lch Headphone-Amp Output Pin
25 MUTET
O
Mute Time Constant Control Pin
Connected to HVSS pin with a capacitor for mute time constant.
26 ROUT
O Rch Stereo Line Output Pin
27 LOUT
O Lch Stereo Line Output Pin
28 MIN
I Mono Signal Input Pin
29
RIN2
IN2−
I Rch Analog Input 2 Pin
I Microphone Negative Input 2 Pin
(MDIF2 bit = “0”)
(MDIF2 bit = “1”)
30
LIN2
IN2+
I Lch Analog Input 2 Pin
I Microphone Positive Input 2 Pin
(MDIF2 bit = “0”)
(MDIF2 bit = “1”)
31
LIN1
IN1−
I Lch Analog Input 1 Pin
I Microphone Negative Input 1 Pin
(MDIF1 bit = “0”)
(MDIF1 bit = “1”)
32 ^RIN1
IN1+
I Rch Analog Input 1 Pin
I Microphone Positive Input 1 Pin
(MDIF1 bit = “0”)
(MDIF1 bit = “1”)
Note 1. All input pins except analog input pins (MIN, LIN1, RIN1, LIN2, RIN2) should not be left floating.
Note 2. AVDD or AVSS voltage should be input to I2C pin.
MS0420-E-00
-7-
2005/09