參數(shù)資料
型號(hào)： AK4342
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(yè)數(shù)： 23/43頁(yè)
文件大?。?/td> 580K
代理商： AK4342
ASAHI KASEI
[AK4342]
MS0506-E-02
2006/07
- 23 -
Headphone Output
Power supply voltage for headphone amplifiers is applied from HVDD and HVEE pins. HVEE pin must be connected
with PVEE pin directly. PVEE pin outputs the negative voltage generated by the internal charge pump circuit. The
headphone amplifier is single-ended outputs and centered on 0V(HVSS). Therefore, the capacitor for AC-coupling can be
removed. The minimum load resistance is 16
.
1. Analog output volume
These volumes are channel independent can gain/attenuate the DAC output signal from +6dB to –48dB. (See Table 10)
Changing levels don’t have any pop noise. The transition time is selected by PTS1-0 bits and sampling frequency (See
Table 2 and Table 15).
At PGAC bit = “1”, PGAL4-0 bits control both Lch and Rch attenuation level, while register values of PGAL4-0 bits are
not written to PGAR4-0 bits. At PGAC bit = “0”, PGAL4-0 bits control Lch level and PGAR4-0 bits control Rch level.
When PGAC bit is changed, the transition of volume is executed via soft changes, and PGAL4-0 and PGAR4-0 bits
should be changed after the transition time passes.
When changing PGAC bit = “0”
“1” (In case of “PGAL4-0 bit
≠
PGAR4-0 bit”), the gain of right channel is changed
to the register setting of PGAL4-0 bits. When changing PGAC bit = “1”
“0” (In case of “PGAL4-0 bit
≠
PGAR4-0
bit”), the gain of right channel is changed to the last register setting which is written into PGAR4-0 bits.
PGAL4-0 bits
PGAR4-0 bits
1FH
+6
1EH
+5
1AH
+1
19H
0
18H
-1
10H
-9
0FH
-10
0EH
-12
06H
-28
05H
-30
04H
-32
03H
-36
02H
-40
01H
-44
00H
-48
Table 10. Volume Setting for headphone amplifier
2. Mute Function
When HMUTEL/HMUTER bit is set to “1”, the headphone amplifier (HPL/HPR pins) goes to ground level (0V). This
function is independent L/R channels. This mute time depends on the setting of PTS1-0 bits and sampling
frequency(FS3-0 bits). When HMUTEL/HMUTER bit is set to “0”, the outputs are in normal operation.
3. Power-up/down
Headphone amplifiers are powered-up/down by PMHP bit, HPL and HPR pins go to HVSS(0V). The power-on/off time
depends on the setting of PUT1-0 bits and sampling frequency (FS3-0 bits). The power-up/down of headphone amplifiers
should be done in the mute state (HMUTEL bit = HMUTER bit = “1”).
GAIN/ATT (dB)
Step
Level
Default
1dB
16
2dB
11
4dB
5
相關(guān)PDF資料
PDF描述
AK4342EN 24-Bit Stereo DAC with HP-AMP & 2V Line-Out
AK4343 Stereo DAC with HP/RCV/SPK-AMP
AK4343EN Stereo DAC with HP/RCV/SPK-AMP
AK4345 100dB 96kHz 24-Bit Stereo 3.3V ツヒ DAC with DIT
AK4345ET 100dB 96kHz 24-Bit Stereo 3.3V ツヒ DAC with DIT
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AK4342EN 制造商:AKM 制造商全稱:AKM 功能描述:24-Bit Stereo DAC with HP-AMP & 2V Line-Out
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(zhǎng)度:10.00'（3.05m） 纜線類型:圓形 - 黑色 屏蔽:屏蔽 樣式:SCSI Ultra 2
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*