AK5700 Datasheet, PDF (4/61 Pages) Asahi Kasei Microsystems – 16-Bit ΔΣ Mono ADC with PLL & MIC-AMP

ASAHI KASEI
[AK5700]
PIN/FUNCTION
No. Pin Name
I/O
Function
1 VCOM
O
Common Voltage Output Pin, 0.5 x AVDD
Bias voltage of ADC inputs.
2 AVSS
- Analog Ground Pin
3 AVDD
- Analog Power Supply Pin
4 DVDD
- Digital Power Supply Pin
5 DVSS
- Digital Ground Pin
6 BCLK
O Audio Serial Data Clock Pin
7 LRCK
O Input / Output Channel Clock Pin
8 SDTO
O Audio Serial Data Output Pin
Chip Select Polarity Pin
9 CSP
I “H”: CSN pin = “H” active, C1-0 = “01”
“L”: CSN pin = “L” active, C1-0 = “10”
10 MCKO
O Master Clock Output Pin
11 EXSDTI
I External Audio Serial Data Input Pin
12 EXLRCK
I External Input / Output Channel Clock Pin
13 EXBCLK
I External Audio Serial Data Clock Pin
14 MCKI
I External Master Clock Input Pin
15 CDTI
I Control Data Input Pin
16 CCLK
I Control Data Clock Pin (Internal Pull-down at CSP pin = “H”)
17 CSN
I Chip Select Pin
18 PDN
I
Power-Down Mode Pin
“H”: Power-up, “L”: Power-down, reset and initializes the control register.
19 MPWR
O MIC Power Supply Pin
20 TEST
-
Test Pin
This pin should be left floating.
21 AIN2
I Analog Input 2 Pin
22 AIN−
I Negative Input Pin
23 ^AIN1
AIN+
I Analog Input 1 Pin
I Positive Input Pin
(MDIF1 bit = “0”: Single-ended Input)
(MDIF1 bit = “1”: Full-differential Input)
24 VCOC
O
Output Pin for Loop Filter of PLL Circuit
This pin should be connected to AVSS with one resistor and capacitor in series.
Note 1. All input pins except analog input pins (AIN1, AIN1−, AIN2) should not be left floating.
„ Handling of Unused Pin
The unused I/O pins should be processed appropriately as below.
Classification
Analog
Digital
Pin Name
MPWR, VCOC, AIN1/AIN+, AIN−, AIN2
BCLK, LRCK, SDTO, MCKO
MCKI, EXBCLK, EXLRCK, EXSDTI
Setting
These pins should be open.
These pins should be open.
These pins should be connected to DVSS.
MS0569-E-01
-4-
2006/12