AK4632VN AKM [Asahi Kasei Microsystems], AK4632VN Datasheet - Page 42

• Manufacturer Part Number: AK4632VN
• Description: 16-Bit ?? Mono CODEC with ALC & MIC/SPK/Video-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). 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). Address and data is clocked in on the rising edge of CCLK and data is clocked out on the
falling edge. The clock speed of CCLK is 5MHz (max). The value of internal registers is initialized at PDN pin = “L”.
MS0396-E-00
Serial Control Interface
CSN
CCLK
CDTI
C1-C0:
R/W:
A4-A0:
D7-D0:
VGCA4-0 bits
C1 C0
“1”
0
17H
16H
15H
04H
03H
02H
01H
00H
“0”
1
:
R/W
“1”
2
Chip Address (C1 = “1”, C0 = “0”); Fixed to “10”
READ/WRITE (“1”: WRITE, “0”: READ); Fixed to “1”
Register Address
Control data
Figure 43. Serial Control I/F Timing
A4
3
Table 25. Setting of GCA
A3
4
A2
5
GAIN(dB)
A2 A0
+10.5dB
+10.0dB
6
+9.5dB
+1.0dB
+0.5dB
-0.5dB
-1.0dB
0.0dB
- 42 -
:
7
D7 D6 D5 D4 D3 D2 D1 D0
8
9
10 11 12 13 14 15
0.5dB
STEP
Default
[AK4632]
2005/06