- 您現在的位置：買賣IC網 > PDF目錄385092 > AK4533 (Asahi Kasei Microsystems Co.,Ltd) Audio Codec with Touch Screen Controller PDF資料下載
參數資料
| 型號： | AK4533 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 元件分類： | Codec |
| 英文描述： | Audio Codec with Touch Screen Controller |
| 中文描述： | 音頻編解碼器與觸摸屏控制器 |
| 文件頁數： | 22/40頁 |
| 文件大小： | 473K |
| 代理商： | AK4533 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁當前第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁
[ASAHI KASEI]
<Revision 0.9a>
July 00
21
Recovery Operation
Recovery Time is defined as a reset cycle of Recovery Counter (RC). The cycle can be changed by the combination of MSEL bit,
RWT0 bit, and RWT1 bit. Input signal enters Recovery Zone from other Zones, RC initiates counting. If the signal exits from
Recovery Zone at lease once, RC is reset. When RC's value exceeds Recovery Time, the AK4533 is ready to update IPGA value, and
RC is reset and counts again from "zero". IPGA value is actually updated once just after the signal crosses the ground. Therefore, the
update cycle will change. Note that the update is one time in one Recovery Time and that the update of IPGA value is disabled until
ROC is "zero" even if the signal crosses the ground several times. The AK4533 compares the IPGA value and Recovery Reference
Level at the update timing. If IPGA value is greater than Recovery Reference Level, IPGA value is forced to Recovery Reference
Level.
When the input signal enters Recovery Zone from any other Zones at the first time, the AK4533 waits for one Recover Time without
updating of IPGA. After that, the AK4533 updates IPGA per one Recovery Time at zero-crossing point.
If the signal doesn't cross the ground, the AK4533 forces to update IPGA value after the time of
Table 5
passes.
MSEL
“L”
252Ts
“H”
508Ts
8kHz
31.5ms
22.9ms
11.4ms
NA
8kHz
NA
NA
NA
Zero-Cross Timeout
11.025kHz
22.05kHz
44.1kHz
11.025kHz
22.05kHz
44.1kHz
11.5ms
Table 5. Zero-Cross Timeout Table for Recovery Time
Addr = 01h
RSTEP0 bit and RSTEP1 bit specify the increment step size of IPGA value at Recovery operation. For example, if the current value of
IPGA is 0x42, and if RSTEP0 and RSTEP1 are "11", IPGA is set to 0x46.
RSTEP-0:
Recovery GAIN Step
RSTEP1
0
0
1
1
RSTEP0
0
1
0
1
GAIN STEP
0.5dB
1.0dB
1.5dB
2.0dB
Default
Addr = 01h
RWT1-0:
MSEL
Recovery Time
RWT0
RWT1
Recovery Time
11.025kHz
23ms
46ms
93ms
185ms
-
-
-
-
8kHz
32ms
64ms
128ms
256ms
-
-
-
-
22.05kHz
11.6ms
23ms
46ms
93ms
-
-
-
-
44.1kHz
-
-
-
-
11.6ms
23ms
46ms
93ms
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
256Ts
512Ts
1024Ts
2048Ts
512Ts
1024Ts
2048Ts
4096Ts
Default
相關PDF資料 |
PDF描述 |
|---|---|
| AK4534 | 16Bit CODEC with MIC/HP/SPK-AMP |
| AK4534VN | 16Bit CODEC with MIC/HP/SPK-AMP |
| AK4536 | 16-Bit Mono CODEC with ALC & MIC/SPK-AMP |
| AK4536VN | 16-Bit Mono CODEC with ALC & MIC/SPK-AMP |
| AK4537 | 16-Bit ツヒ Stereo CODEC with MIC/HP/SPK-AMP |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AK4534 | 制造商:AKM 制造商全稱:AKM 功能描述:16Bit CODEC with MIC/HP/SPK-AMP |
| AK4534VN | 制造商:AKM 制造商全稱:AKM 功能描述:16Bit CODEC with MIC/HP/SPK-AMP |
| AK4534VQ | 功能描述:IC CODEC 16BIT MIC/HP/SPK-AMP 制造商:akm semiconductor inc. 系列:* 零件狀態(tài):上次購買時間 標準包裝:1,000 |
| AK4536 | 制造商:AKM 制造商全稱:AKM 功能描述:16-Bit Mono CODEC with ALC & MIC/SPK-AMP |
| AK4536VN | 制造商:AKM 制造商全稱:AKM 功能描述:16-Bit Mono CODEC with ALC & MIC/SPK-AMP |
發(fā)布緊急采購，3分鐘左右您將得到回復。