參數(shù)資料
型號(hào)： AK4564VQ
廠商： Asahi Kasei Microsystems Co.,Ltd
元件分類： Codec
英文描述： 16BIT CODEC WITH BUILT-IN ALC AND MIC/HP/SPK-AMP
中文描述： 16位編解碼器，配有ALC和麥克風(fēng)/惠普/胰腎聯(lián)合移植腺苷
文件頁數(shù)： 21/48頁
文件大?。?/td> 382K
代理商： AK4564VQ
ASAHI KASEI
[AK4564]
MS0140-E-01
2002/07
- 21 -
n
Headphone-Amps
The Power supply voltage for Headphone-Amp is supplied from HVDD pin and centered around HVCM voltage. The
load resistance and output voltage are specified by HVDD voltage. The output voltage can be changed by supplying
AVDD voltage and HPG bit. (Refer to Table 3)
HVDD
2.6
～
3.6V
HPG bit
Output Voltage
(0.59 x AVDD) Vpp
Load Resistance (min)
22
Table 3. Load resistance and output voltage of Headphone-Amp
When HPG bit is “0”, the signals from MIX1, DAC and BEEP2 are output from Headphone-Amps with 0dB gain. When
HPG is “1”, the signals from MIX1, DAC and BEEP2 output from Headphone-Amps with +16.5dB gain. (Refer to Figure
15)
When HPDAC, HPMIX and BEEP2H bits are “0”, the input signals to Headphone-Amp are disabled and HPL/HPR pins
output HVCM voltage.
HPMIX, HPDAC and BEEP2H bits control ON/OFF of each input signal. When these bits are “1” at the same time, all
input signals are mixed by the ration of “1:1”. (Refer to Figure 13 and Figure 16)
4.0
～
5.5V
1
(0.98 x AVDD) Vpp
100
0
0dBV
-10dBV
-20dBV
-30dBV
OATT+DAC
HP-AMP (+16.5dB)
FS
FS-12dB
-27dBV
-15dBV
-16.5dBV
+1.5dBV
0dBV
-4.5dBV
-16.5dBV
OATT=-10.5dB
-4.5dBV
+10dBV
-10.5dBV
+12dBV
OATT = 0dB
Figure 15. Headphone-Amp Level Diagram (AVDD=2.8V, HVDD=4.5V, HPG = “1”, OATT = 0dB& -10.5dB)
* FS = Full Scale
相關(guān)PDF資料
PDF描述
AKD4564 16BIT CODEC WITH BUILT-IN ALC AND MIC/HP/SPK-AMP
AK4565 LOW POWER 20BIT CODEC WITH BUILT IN ALC
AK4565VF LOW POWER 20BIT CODEC WITH BUILT IN ALC
AK4566 20bit Stereo CODEC with built-in IPGA & HP-AMP
AK4566VN 20bit Stereo CODEC with built-in IPGA & HP-AMP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AK4565 制造商:AKM 制造商全稱:AKM 功能描述:LOW POWER 20BIT CODEC WITH BUILT IN ALC
AK4565VF 制造商:AKM 制造商全稱:AKM 功能描述:LOW POWER 20BIT CODEC WITH BUILT IN ALC
AK4566 制造商:AKM 制造商全稱:AKM 功能描述:20bit Stereo CODEC with built-in IPGA & HP-AMP
AK4566VN 制造商:AKM 制造商全稱:AKM 功能描述:20bit Stereo CODEC with built-in IPGA & HP-AMP
AK4568AER 功能描述:IC CODEC LOW POWER 制造商:akm semiconductor inc. 系列:* 零件狀態(tài):上次購(gòu)買時(shí)間 標(biāo)準(zhǔn)包裝:1,000
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