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參數(shù)資料
| 型號： | AK4370VN |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | 24-Bit 2ch DAC with HP-AMP & Output Mixer |
| 中文描述： | 24位2通道DAC，具有惠普腺苷 |
| 文件頁數(shù)： | 28/49頁 |
| 文件大?。?/td> | 695K |
| 代理商： | AK4370VN |
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ASAHI KASEI
[AK4370]
MS0595-E-00
2007/03
- 28 -
■
Stereo Line Output (LOUT, ROUT pins)
The common voltage is 0.475 x AVDD. The load resistance is 10k
Ω
(min). When the PMLO bit is “1”, the stereo line
output is powered-up. DALL, LIN1L, RIN1L, LIN2L and RIN2L bits control each path switch of LOUT. DARR, LIN1R,
RIN1R, LIN2R and RIN2R bits control each path switch of ROUT. When L1M = L2M bits = “0”, LOG bit = “0” (R
1L
=
R
2L
= R
DL
= 100k) and ATTS3-0 bits is “0FH”(0dB), the mixing gain is 0dB(typ) for all paths. When the LOG bit =
“1”(R
DL
= 50k), the DAC path gain is +6dB. When L1M = L2M bits = “1”, LIN1/RIN1 and LIN2/RIN2 signals are output
from LOUT/ROUT pins as (L+R)/2, respectively (R
1L
= R
2L
= 200k).
If the path is OFF and the signal is input to the input pin, the input pin should be biased to a voltage equivalent to VCOM
voltage (= 0.475 x AVDD) externally. Figure 39 shows the external bias circuit example.
R
1L
+
LOUT pin
R
L
R
DL
DALL bit
+
100k(typ)
R
L
RIN2 pin
R
2L
RIN2L bit
LIN2 pin
R
2L
LIN2L bit
DAC Lch
RIN1 pin
R
1L
RIN1L bit
LIN1 pin
LIN1L bit
+
ROUT pin
R
L
DARR bit
+
100k(typ)
R
L
DAC Rch
R
DL
RIN2 pin
R
2L
RIN2R bit
LIN2 pin
R
2L
LIN2R bit
RIN1 pin
R
1L
RIN1R bit
LIN1 pin
R
1L
LIN1R bit
Figure 22. Summation circuit for stereo line output
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| AK4371 | 制造商:AKM 制造商全稱:AKM 功能描述:24bit DAC with Headphone Amplifier |
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