參數(shù)資料
型號: AK4632VN
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: 16-Bit ツヒ Mono CODEC with ALC & MIC/SPK/Video-AMP
中文描述: 16位ツヒALC的單聲道編解碼器
文件頁數(shù): 42/70頁
文件大?。?/td> 639K
代理商: AK4632VN
ASAHI KASEI
[AK4632]
MS0396-E-00
2005/06
- 42 -
VGCA4-0 bits
17H
16H
15H
:
04H
03H
02H
01H
00H
GAIN(dB)
+10.5dB
+10.0dB
+9.5dB
:
+1.0dB
+0.5dB
0.0dB
-0.5dB
-1.0dB
STEP
0.5dB
Default
Table 25. Setting of GCA
Serial Control Interface
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
.
CSN
CCLK
0
1
2
3
4
5
6
7
8
9
10
11 12
13 14 15
CDTI
C1 C0
“1”
A2
A3
A2 A0
A4
D7 D6 D5 D4 D3 D2 D1 D0
R/W
“1”
C1-C0: Chip Address (C1 = “1”, C0 = “0”); Fixed to “10”
R/W:
READ/WRITE (“1”: WRITE, “0”: READ); Fixed to “1”
A4-A0:
Register Address
D7-D0: Control data
“0”
Figure 43. Serial Control I/F Timing
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