參數(shù)資料
型號(hào): AK4650VG
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 & TSC
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(yè)數(shù): 38/86頁(yè)
文件大小: 824K
代理商: AK4650VG
[AK4650]
MS0502-E-01
2007/04
- 38 -
MONO LINE OUTPUT (MOUT+ and MOUT
pins)
MICOUT pin
ATT+DAC
MIC In
+20dB/0dB
IPGA5-0 bits
MOUT+ pin
MOUT
pin
1/2
+6dB to –15dB
1/2
MICM bit
DAMO bit
MOGN2-0 bits
ATT
AK4650
AIN pin
ATTM bit
Figure 25. Mono Output
Mono mixer mixes signals from MIC In, DAC Lch and Rch. This mixed signal is output from the MOUT+ and MOUT–
pins, creating a differential output. Either the MOUT+ or MOUT– pin can be also used as single-ended output. Load
resistance is 20k
Ω
(min). When PMMO bit is “0”, mono output is powered-down and MOUT+/– pins become Hi-Z.
PMMO
MOMT
Mode
0
x
Power-down
1
Mute
1
0
Normal operation
Table 30. Mono Output Setting
Volume of path from DAC is controlled by ATTL7-0 and ATTR7-0 bits (Table 25). Volume of path from IPGA is
controlled by ATTM bit (Table 8). Mono output amp has +6dB to –15dB gain that are set by the MOGN2-0 bits (Table
31).
MOGN2-0
GAIN (dB)
0H
+6.0
1H
+3.0
2H
+0.0
3H
3.0
4H
6.0
5H
9.0
6H
12.0
7H
15.0
Table 31. Mono Output Gain Control
MOUT+/MOUT
pin
Hi-Z
VCOM
Normal operation
(default)
STEP
(default)
3dB
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