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參數(shù)資料
| 型號(hào)： | AK4342EN |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | 24-Bit Stereo DAC with HP-AMP & 2V Line-Out |
| 中文描述： | 24位立體聲DAC惠普腺苷 |
| 文件頁數(shù)： | 22/43頁 |
| 文件大?。?/td> | 580K |
| 代理商： | AK4342EN |
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ASAHI KASEI
[AK4342]
MS0506-E-02
2006/07
- 22 -
Charge Pump Circuit
The internal charge pump circuit generates negative voltage from PVDD voltage. The generated voltage is used to lineout
and headphone amplifiers. When PMCP bit is set to “1”, the charge pump circuit is powered-up. Then all clocks (MCLK,
BICK and LRCK) should be supplied. The power up time of charge pump circuit depends on FS3-0 bits (See Table 9).
FS3 bit
FS2 bit
FS1 bit
FS0 bit
Sampling
Frequency
Power up time of
Charge Pump
Circuit
11.6ms
8.0ms
10.7ms
(Reserve)
11.6ms
8.0ms
10.7ms
(Reserve)
11.6ms
8.0ms
10.7ms
(Reserve)
11.6ms
8.0ms
10.7ms
(Reserve)
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
44.1kHz
32kHz
48kHz
(Reserve)
88.2kHz
64kHz
96kHz
(Reserve)
22.05kHz
16kHz
24kHz
(Reserve)
11.025kHz
8kHz
12kHz
(Reserve)
Default
Table 9. Power up time of Charge Pump Circuit
Analog Input
Signal level from LIN/RIN is adjusted by an external resistor (Ri). Internal feedback resistance (Rf) is 20k
±
30%
.
When PMDAC, PMHP, PMLO or PMAUX bit is set to “1”, the left and right channel amplifiers are powered-up. The
transition time of signal path (LINL, LINR, RINL and RINR bits) is selected by PTS1-0 bits and FS3-0 bits. The signal
path (LINL, LINR, RINL and RINR bits) should not be changed during the transition.
LIN/RIN
-
+
Rf = 20k
Ri
Figure 17. Block diagram of LIN/RIN inputs
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PDF描述 |
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| AK4343EN | Stereo DAC with HP/RCV/SPK-AMP |
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| AK4345ET | 100dB 96kHz 24-Bit Stereo 3.3V ツヒ DAC with DIT |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AK4342EN-L | 制造商:ASAHI 功能描述: |
| AK4342ENP-L | 制造商:Asahi Kasei Microsystems Co Ltd 功能描述: |
| AK4343 | 制造商:AKM 制造商全稱:AKM 功能描述:Stereo DAC with built-in HP/RCV/SPK amplifier |
| AK434-3 | 功能描述:CABLE CENTRONICS F-F 3M RoHS:否 類別:電纜組件 >> D形，Centronics 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 配置:VHDCI 68 位置公型至公型 長度:10.00'（3.05m） 纜線類型:圓形 - 黑色 屏蔽:屏蔽 樣式:SCSI Ultra 2 |
| AK4343EN | 制造商:AKM 制造商全稱:AKM 功能描述:Stereo DAC with HP/RCV/SPK-AMP |
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