參數(shù)資料
型號: AK4562
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: LOW POWER 20BIT CODEC WITH PGA
中文描述: 低功耗20位編解碼器美巡賽
文件頁數(shù): 19/29頁
文件大?。?/td> 167K
代理商: AK4562
ASAHI KASEI
[AK4562]
MS0031-E-00
2000/05
- 19 -
Input Analog PGA Control
Addr
03H
Register Name
Input Analog PGA Control
RESET
D7
ZEIP
0
D6
D5
D4
D3
D2
D1
D0
IPGA6
IPGA5
IPGA4
IPGA3
00H (MUTE)
IPGA2
IPGA1
IPGA0
ZEIP:
Select IPGA zero crossing operation (0: Disable, 1: Enable)
Writing to IPGA value at ZEIP = “1”, IPGA value of L/R channels changes by zero crossing
detection or timeout independently.
In the timeout cycle, it is possible to set in ZTM1-0 bit.
When ZTM1-0 is “11”, timeout cycle is 2048/fs = 46.4ms (@fs=44.kHz).
When ZEIP is “0”, IPGA changes immediately.
IPGA6-0: Input Analog PGA. 97 levels. 00H=MUTE.
ON/OFF of zero crossing detection can be controlled by ZEIP bit.
DATA
60H
5FH
5EH
28H
27H
19H
18H
17H
16H
11H
10H
0FH
0EH
05H
04H
03H
02H
01H
00H
GAIN (dB)
+28.0
+27.5
+27.0
+0.0
-0.5
-7.5
-8.0
-9.0
-10.0
-15.0
-16.0
-18.0
-20.0
-38.0
-40.0
-44.0
-48.0
-52.0
MUTE
Table 3. Input Gain Setting
Step
Level
0.5dB
73
1dB
8
2dB
12
4dB
3
1
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AK4562VN 制造商:AKM 制造商全稱:AKM 功能描述:LOW POWER 20BIT CODEC WITH PGA
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AK4564 制造商:AKM 制造商全稱:AKM 功能描述:16BIT CODEC WITH BUILT-IN ALC AND MIC/HP/SPK-AMP
AK4564VQ 制造商:AKM 制造商全稱:AKM 功能描述:16BIT CODEC WITH BUILT-IN ALC AND MIC/HP/SPK-AMP