AK7746 Datasheet, PDF (8/62 Pages) Asahi Kasei Microsystems – Audio DSP with 5-channel 24-bit ADC and Input Mux

[ASAHI KASEI]
[AK7746]
Pin No
46
47
48
Pin name
AVDD
AVSS
LFLT
49
AINM
50 AINR4
51 AINL4
52 AINR3
53 AINL3
54 AINR2
55 AINL2
56
AVDD
57 VREFH
58 VCOM
59 VREFL
60
AVSS
61
AINR-
62 AINR+
63
AINL-
64 AINL+
I/O
Function
Classification
- Analog Power supply pin 3.3V (typ)
Analog Power Supply
- Analog Ground 0.0V
O Filter connection pin for PLL
Analog output
When using the PLL function, connect a 22kΩ resistor and a 1.5nF capacitor
in series to the analog ground (AVSS)
I ADCM Monaural single ended input
Analog input
I ADC1 or ADC2 Rch single ended input 4
I ADC1 or ADC2 Lch single ended input 4
I ADC1 or ADC2 Rch single ended input 3
I ADC1 or ADC2 Lch single ended input 3
I ADC1 or ADC2 Rch single ended input pin 2
I ADC1 or ADC2 Lch single ended input pin 2
- Analog Power Supply 3.3V (typ)
Analog Power supply
Analog reference voltage input
I Normally, connect to AVDD, and connect 0.1µF and 10µF capacitors
Analog input
between this pin and AVSS.
Common voltage
Analog output
O Normally, connect 10µF and 0.1µFcapacitor between this pin and AVSS.
Don’t connect to other circuitry.
Analog reference voltage input pin for low-level.
I
Normally, connect to AVSS.
Analog input
- Analog Ground 0.0V
Analog Power Supply
I ADC1 or ADC2 Rch analog inverted input
Analog input
I ADC1 or ADC2 Rch analog non-inverted input
I ADC1 or ADC2 Lch analog inverted input
I ADC1 or ADC2 Lch analog non-inverted
Note) Do NOT leave open digital input pins unless they are internally pulled down and BITCLK_I, LRCLK_I in master mode.
(If you do not use pull-down pin, leave open or connects to DVSS. However, TESTI pin should connect to DVSS. )
* If analog input pins (1~8, 49~55, 61~64 pin ) are not used, leave them open.
[MS0369-E00]
-8-
2004/12