ak7770eq ETC-unknow, ak7770eq Datasheet - Page 6

• Manufacturer Part Number: ak7770eq
• Description: Audio With Multi-channel Audio Codec
• Manufacturer: ETC-unknow

No.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
1
2
3
4
5
6
7
8
9
MS0699-E-01-PB
INITRSTN
BITCLKO
HMUTEN
Pin name
LRCLKO
DVDD18
SDOUT1
SDOUT2
SDOUT3
DVDD18
CKM [0]
FROL1
AVDD
TEST2
DVDD
DVDD
FRIR1
TESTI
CLKO
FRIL1
LFLT
VSS1
VSS3
VSS3
XTO
XTI
I/O
O Serial Data Output 1 Pin
O Serial Data Output 2 Pin
O Serial Data Output 3 Pin
O Crystal Oscillator Output Pin
O Lch Feedback Resistance Output Pin for ADC1
O Loop Filter Pin.
O Left/right Clock Output Pin
O Clock Output Pin
O Bit Clock Output Pin
I
I
-
-
I
I
I
I
I
-
-
-
I
-
-
-
Reset Pin (for initialization)
Crystal Oscillator Input Pin
Rch Feedback Resistance Input Pin for ADC1
Lch Feedback Resistance Input Pin for ADC1
Analog Power Supply Pin 3.3V (typ)
Analog Ground Pin 0V (connected to silicon substrate)
Test Pin (Internal pull-down)
Clock Mode Selection Pin
Headphone Amplifier Mute Pin
Test Pin
Digital Power Supply Pin 1.8V(typ)
Digital Ground Pin 0V
Digital Power Supply Pin 3.3V(typ)
Digital Power Supply Pin 3.3V(typ)
Digital Ground Pin 0V
Digital Power Supply Pin 1.8V(typ)
Connect to GND.
Connect to GND.
Connect to GND.
At initial reset, this pin goes Hi-Z.
Connect a 10nF cap to AVDD. The output is AVDD at initial reset
Use to initialize the AK7770.
The output in initial reset is “L”.
The output in initial reset is “L”.
The output in initial reset is “L”.
The output in initial reset is “L”.
The output in initial reset is “L”.
The output in initial reset is “L”.
Connect a crystal oscillator between the XTI pin and XTO pin. Leave open
when using an external clock source. The output in initial reset is
undetermined.
Connect a crystal oscillator between the XTI pin and XTO pin. Input an
external clock into the XTI pin when not using a crystal oscillator.
PIN FUNCTION
Function
- 6 -
Analog
Analog power
supply
Test
Mode choice
Headphones
Reset
Test
Digital power
supply
System clock
Serial data
A system clock
Digital power
supply
Classification
[AK7770]
2008/06