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參數(shù)資料
| 型號： | AK4532 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 元件分類： | Codec |
| 英文描述： | Internet/Network/General Purpose Multimedia Audio CODEC |
| 中文描述： | 互聯(lián)網(wǎng)/網(wǎng)絡(luò)/通用多媒體音頻編解碼器 |
| 文件頁數(shù)： | 12/17頁 |
| 文件大?。?/td> | 345K |
| 代理商： | AK4532 |
ASAHI KASEI [AK4532]
0178-E-01 12 1999/06
4. Explanation of each sequence
4.1.
Reset & Power down
INIT1: Initializing all registers. The AK4532 exists in the power down state.
INIT2: Initializing all registers except
PD
,
RST
registers.
INITA: Initializing the analog section. Initializing period is 516/fs.
PD: Power down state. All analog outputs are floating.
In case of
RST
register = “0”, initializing all registers except
PD
,
RST
registers.
Inhibit(1): Inhibits writing to all registers.
Inhibit(2): Inhibits writing to all registers except for
PD
,
RST
registers.
The AK4532 operates with the external clocks(MCLK, LRCK, SCLK) during initializing the
analog section.
Figure 1. Reset & Power Down Sequence
4.2.
PD
pin operation
“H”: Normal operation
“L”: Initializing mode 1(INIT1 in Figure 1)
Initializing all registers.
Inhibits writing to all registers.
The initialization of the analog section starts at rising edge of
PD
pin.
SDO pin stays “L” during the initializing periods of 516/fs.
Going into power down state.
4.3.
RST
register operation
“1”: Normal operation
“0”: Initializing mode 2(INIT2 in Figure 1)
Initializing all registers except
PD
,
RST
registers.
Inhibits writing to all registers except
PD
,
RST
registers.
RST
register goes “1” when
PD
pin goes “L”.
The analog section is not initialized.
4.4.
PD
register operation
“1”: Normal operation
“0”: Power down
The contents of all registers are held.
PD
resister goes “1” when
PD
pin goes “L”
.
All analog outputs(LOUT, ROUT) go floating.
The initialization of the analog section starts at the rising edge of
PD
resister.
SDO pin stays “L” during the initializing period of 516/fs.
4.5.
SDO output pin operation
INIT1
INITA
Normal
PD
Normal
INIT2
Normal PD+INIT2
Normal
Inhibit(1)
Inhibit(2)
Inhibit(2
Power Supply
PD pin
PD(register)
RST(register)
Internal State
Write to register
External clock
MCLK,LRCK,SCLK
The clocks may be stopped.
INITA
INITA
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AKD4532 | Internet/Network/General Purpose Multimedia Audio CODEC |
| AK4533 | Audio Codec with Touch Screen Controller |
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AK4532_04 | 制造商:AKM 制造商全稱:AKM 功能描述:Internet/Network/General Purpose Multimedia Audio CODEC |
| AK4533 | 制造商:AKM 制造商全稱:AKM 功能描述:Audio Codec with Touch Screen Controller |
| 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(shí)間 標(biāo)準(zhǔn)包裝:1,000 |
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