ak7752 AKM Semiconductor, Inc., ak7752 Datasheet - Page 7

• Manufacturer Part Number: ak7752
• Description: Audio/hands Free Dsp With Stereo Codec
• Manufacturer: AKM Semiconductor, Inc.

No.
50
51
52
53
54
55
56
57
58
59
60
61
62
63 ALINE_OUT O
64
Note 1. Do NOT leave digital input pins open except for pins that indicate “Internal pull down”, BITCLK_I and
Note 2. When analog input pins (ALINE_IN, ANE_IN) are not used, leave them open.
Note 3. Connect I2CSEL to “L” (DVSS) or “H” (DVDD).
MS0578-E-01-PB
ALINE_IN
ANE_OUT
Pin Name
ANE_IN
CKM[1]
CKM[0]
TESTI1
VREFH
VREFL
VCOM
AVDD
AVDD
Relationship between I2CSEL and SDA
AVSS
AVSS
LFLT
SYNC_I at master mode. (Internal pull down pins except TEST1 and TEST2 pins leave them open or connect
them to DVSS. Connect TEST1 and TEST2 pins to DVSS).
uP I/F
Normal Serial
Interface
I
2
C Bus Mode
I/O
O
O
O
I Clock Mode Select Pin 1
I Clock Mode Select Pin 0
I
- Analog ground Pin 0V (Silicon substrate potential)
- Power Supply Pin for Analog Section (3.3V typical)
I
I
- Analog Power Supply Pin (3.3V typical)
I
I
- Analog ground Pin 0V (Silicon substrate potential)
TEST pin (Internal pull-down)
PLL RC component connect pin
ADC Analog Input Pin (ANE_IN)
ADC Analog Input Pin (ALINE_IN)
Analog Reference Voltage Input Pin
Analog Common Voltage Output pin
Analog Reference Voltage Input pin
DAC Analog Output Pin (ALINE_OUT)
DAC Analog Output Pin (ANE_OUT)
Connect to DVSS.
Connect a series resistor and capacitor pair to this pin.
Normally connected to the microphone amplifier.
Normally the receiving analog phone voice signal is input.
Connect this pin to AVDD. Connect capacitors of 0.1 uF and 10 uF between this
pin and AVSS.
Connect capacitors of 0.1 uF and 10 uF between this pin and AVSS. No external
circuits should be connected to this pin.
Connect this pin to AVSS.
Normally the sending analog phone voice signal is output.
Normally connected to the speaker amplifier.
I2CSEL
H
H
L
L
- 7 -
Function
INIT_RESET_N
H
H
L
L
SDA
“Hi-Z” → pull-up
function
L
L
Analog Output
Analog Output
Analog Output
Power Supply
Power Supply
Power Supply
Classification
Analog Input
Analog Input
Analog Input
Mode Select
Analog
Analog
Analog
[AK7752]
TEST
2007/09