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(yè)數(shù)： 25/43頁(yè)
文件大?。?/td> 580K
代理商： AK4342EN
ASAHI KASEI
[AK4342]
MS0506-E-02
2006/07
- 25 -
Aux-out amp
Aux-out amplifiers are single-ended outputs and centered on VCOM voltage (0.45 x AVDD). Signal output voltage is
typically 700mVrms (@ AVDD = 3.3V, 0dBFS). The minimum load resistance is 10k
.
When the AVCMN bit is set to “0”, the common voltage of Aux-out amplifiers falls. When the AVCMN bit is set to “1”,
the common voltage rises to 0.45 x AVDD. A capacitor between the MUTET pin and ground reduces pop noise at
power-up. Rise/Fall time constant is in proportional to AVDD voltage and the capacitor at MUTET pin.
[Example]: A capacitor between the MUTET pin and ground = 1.0
μ
F, AVDD=3.3V:
Rise/fall time constant:
τ
= 100ms(typ), 300ms(max)
When PMAUX bit is set to “0”, the Aux-out amplifiers are powered-down, and the outputs (LAUX and RAUX pins) go
to “L” (AVSS). When the AMUTE bit is set to “1”, the outputs (LAUX and RAUX pins) are muted and become VCOM
voltage. When the AMUTE bit is set to “0”, the outputs are in normal operation.
PMAUX bit
(1) (2)
(4)
(3)
AVCMN bit
LAUX pin
RAUX pin
Figure 19. Power-up/Power-down Timing for Aux-out amplifier
(1) Aux-out amplifier power-up (PMAUX bit = “1”). The outputs are still AVSS.
(2) Aux-out amplifier common voltage rises up (AVCMN bit = “1”)
(3) Aux-out amplifier common voltage falls down (AVCMN bit = “0”)
(4) Aux-out amplifier power-down (PMAUX bit = “0”). The outputs are AVSS. If the power supply is switched off or
Aux-out amplifier is powered-down before the common voltage goes to AVSS, some pop noise occurs.
相關(guān)PDF資料
PDF描述
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
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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(zhǎng)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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