參數(shù)資料
型號(hào): AK4651VG
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: 16Bit ツヒ CODEC with MIC/HP/SPK-AMP
中文描述: 16位ツヒ編解碼器麥克風(fēng)/惠普/胰腎聯(lián)合移植腺苷
文件頁數(shù): 35/66頁
文件大小: 605K
代理商: AK4651VG
ASAHI KASEI
[AK4651]
MS0503-E-00
2006/04
- 35 -
BEEP Input
When the PMBPM bit is set to “1”, mono beep input is powered up. And when the BPMHP bit is set to “1”, the signal
from the BEEP pin is input to Headphone-amp. When the BPMSP bit is set to “1”, the signal from the BEEP pin is input
to Speaker output. The external resisters Ri adjust the signal level of each BEEP input that are mixed to Headphone and
Speaker outputs.
The signal from the BEEP pin is mixed to the Headphone-amp through a –20dB gain stage. The signal from the BEEP pin
is mixed to the Speaker-amp without gain. The internal feedback resistance is 20k
±
30%. When BPMT bit is “1”, BEEP
input is muted.
AK4651
BEEP pin
Ri
Rf
BPMHP bit
SP
-20dB
BPMSP bit
HP Lch
HP Rch
Figure 23. Block Diagram of BEEP pins
(Rf = 20k
±
30%)
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