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參數(shù)資料
| 型號(hào)： | AK4543 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 元件分類： | Codec |
| 英文描述： | AC’97 Rev 2.1 Multimedia Audio CODEC |
| 中文描述： | AC\u0026#39;97音效活2.1多媒體音頻編解碼器 |
| 文件頁數(shù)： | 25/31頁 |
| 文件大?。?/td> | 385K |
| 代理商： | AK4543 |
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[ASAHI KASEI]
[AK4543]
<M0046-E-01>
1999/01
- 25 -
The below table shows the relationship for the AC-Link Powerdown/Powerup procedure.
AC-Link Powerdown Procedure
Subsequent Procedure for
Powerup
Cold Reset
Comments
RESET#=L
Cold Reset wakes up all of codecs with default register
setting concurrently.
Cold Reset wakes up all of codecs with default register
setting concurrently.
Shutdown(Complete Powerdown)
Cold Reset
Note:
1) The AC-Link Powerdown of Primary AC97 will stop supplying the BIT_CLK to the Secondary AC97.
2) When the AC-Link Powerdown is issued to the Secondary of AC97, the Secondary of AC97 will go to the AC-
Link Powerdown and Warm Reset will be followed by Syn signal at the next time frame.
n
Testability
Activating the Test Modes
AC ‘97 has two test modes. One is for ATE in circuit test and the other is for vendor specific tests. AC ‘97 enters the ATE
in circuit test mode regardless of SYNC signal (high or low) if SDATA_OUT is sampled high at the trailing edge of RESET#.
If AC ‘97 enters AKM test mode when coming out of RESET if SYNC is high with SDATA_OUT low. These cases will never
occur during standard operating conditions.
Regardless of the test mode, the AC ‘97 controller must issue a “Cold” reset to resume normal operation of the AC ‘97
Codec.
Test Mode Functions
ATE in circuit test mode
When AC ‘97 is placed in the ATE test mode, its digital AC-link outputs (i.e. BIT_CLK and SDATA_IN) are driven to a high
impedance state. This allows ATE in circuit testing of the AC ‘97 controller.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AK4543VQ | AC’97 Rev 2.1 Multimedia Audio CODEC |
| AK4544A | AC97 MULTIMEDIA AUDIO CODEC WITH SRC |
| AK4544AVQ | CABLE ASSEMBLY; BNC MALE TO N MALE; 50 OHM, RG223/U COAX, DOUBLE SHIELDED; 36" CABLE LENGTH |
| AK4544 | AC97 MULTIMEDIA AUDIO CODEC WITH SRC |
| AK4545 | AC97 AUDIO CODEC WITH SRC AND DIT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AK4543VQ | 制造商:AKM 制造商全稱:AKM 功能描述:AC’97 Rev 2.1 Multimedia Audio CODEC |
| AK4544 | 制造商:AKM 制造商全稱:AKM 功能描述:AC97 MULTIMEDIA AUDIO CODEC WITH SRC |
| AK4544A | 制造商:AKM 制造商全稱:AKM 功能描述:AC97 MULTIMEDIA AUDIO CODEC WITH SRC |
| AK4544AVQ | 制造商:AKM 制造商全稱:AKM 功能描述:AC97 MULTIMEDIA AUDIO CODEC WITH SRC |
| AK4545 | 制造商:AKM 制造商全稱:AKM 功能描述:AC97 AUDIO CODEC WITH SRC AND DIT |
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