AK5700VN AKM [Asahi Kasei Microsystems], AK5700VN Datasheet - Page 39

• Manufacturer Part Number: AK5700VN
• Description: 16-Bit ?? Mono ADC with PLL & MIC-AMP
• Manufacturer: AKM [Asahi Kasei Microsystems]

ASAHI KASEI
Internal registers may be written by using the 3-wire µP interface pins (CSN, CCLK and CDTI). CSP pin selects the
polarity of CSN pin and chip address.
1) CSP pin = “L”
The data on this interface consists of a 2-bit Chip address (Fixed to “10”), Read/Write (Fixed to “1”), Register address
(MSB first, 5bits) and Control data (MSB first, 8bits). Each bit is clocked in on the rising edge (“↑”) of CCLK. Address
and data are latched on the 16th CCLK rising edge (“↑”) after CSN falling edge(“↓”). Clock speed of CCLK is 7MHz
(max). The value of internal registers are initialized by PDN pin = “L”.
2) CSP pin = “H”
The data on this interface consists of a 2-bit Chip address (Fixed to “01”), Read/Write (Fixed to “1”), Register address
(MSB first, 5bits) and Control data (MSB first, 8bits). Each bit is clocked in on the rising edge (“↑”) of CCLK. Address
and data are latched on the 16th CCLK rising edge (“↑”) after CSN rising edge(“↑”). Clock speed of CCLK is 7MHz
(max). The value of internal registers are initialized by PDN pin = “L”.
MS0569-E-01
Serial Control Interface
CSN
CCLK
CSN
CCLK
CDTI
CDTI
C1-C0: Chip Address (C1 = “1”, C0 = “0”); Fixed to “10”
R/W:
A4-A0:
D7-D0: Control data
C1-C0: Chip Address (C1 = “0”, C0 = “1”); Fixed to “01”
R/W:
A4-A0:
D7-D0: Control data
C1 C0
C1 C0
“1”
“0”
0
0
Figure 38. Serial Control I/F Timing (CSP pin = “H”)
Figure 37. Serial Control I/F Timing (CSP pin = “L”)
“0”
“1”
1
1
R/W
R/W
“1”
“1”
2
2
READ/WRITE (“1”: WRITE, “0”: READ); Fixed to “1”
Register Address
READ/WRITE (“1”: WRITE, “0”: READ); Fixed to “1”
Register Address
A4
A4
3
3
A3
A3
4
4
A2
A2
5
5
A1 A0
A1 A0
6
6
- 39 -
7
7
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
8
8
9
9
10 11 12 13 14 15
10 11 12 13 14 15
[AK5700]
2006/12