參數(shù)資料
型號(hào)： AK4665AEN
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, QCC32
封裝： 5 X 5 MM, 0.50 MM PITCH, LEAD FREE, QFN-32
文件頁數(shù)： 27/52頁
文件大?。?/td> 522K
代理商： AK4665AEN
ASAHI KASEI
[AK4665A]
MS0440-E-01
2006/05
- 33 -
Transition Time
The power-up/down time of HP-Amp at the change of PMHPL/R bits is set by PUT1-0 bits (Table 38).
The mute ON/OFF timing of HP-Amp, the ON/OFF timing of output path for HPL/HPR and LOUT/ROUT, and the gain
changing at ALC2 recovery operation are changed by the soft transition respectively. The transition time is set by PTS1-0
bits (Table 39). The register value of same address must be changed by an interval more than transition time.
The Enable/Disable for the soft transition is set by MOFF0, MOFF8 and MOFF9 bits (Table 37). The soft transition is
disabled while these bits are “1”, and ON/OFF is done immediately.
As shown in Table 37, if the soft transition is enabled, the register value of same address must be changed by an interval
more than transition time. The write operation is ignored if the same values are written as the previous write operation.
Address
Register Name
Enable/Disable
PUT1-0 bits
00H
PMHPL, PMHPR bits
MOFF0 bit
08H
DACHL, LINHL, MINHL, DACHR, RINHR, MINHR,
HPMTN bits
MOFF8 bit
PTS1-0 bits
09H
DACL, LINL, RINR, MINL, DACR, MINR bits
MOFF9 bit
Table 37. Registers with Transition Time
Power-up/down Time
FS3
FS2
FS1
FS0
PUT=00
(Default)
PUT=01
PUT=10
PUT=11
0
770/fs (17.5ms)
1538/fs (34.9ms)
3074/fs (69.7ms)
6146/fs (139ms)
Default
0
1
514/fs (16.1ms)
1026/fs (32.1ms)
2050/fs (64.1ms)
4098/fs (128ms)
0
1
0
770/fs (16.1ms)
1538/fs (32.1ms)
3074/fs (64.1ms)
6146/fs (128ms)
1
0
386/fs (17.5ms)
770/fs (34.9ms)
1538/fs (69.8ms)
3074/fs (139ms)
1
0
1
258/fs (16.1ms)
514/fs (32.1ms)
1026/fs (64.1ms)
2050/fs (128ms)
1
0
1
0
386/fs (16.1ms)
770/fs (32.1ms)
1538/fs (64.1ms)
3074/fs (128ms)
1
0
194/fs (17.6ms)
386/fs (35.0ms)
770/fs (69.8ms)
1538/fs (140ms)
1
0
1
130/fs (16.3ms)
258/fs (32.3ms)
514/fs (64.3ms)
1026/fs (128ms)
1
0
194/fs (16.2ms)
386/fs (32.2ms)
770/fs (64.2ms)
1538/fs (128ms)
Others
N/A
Table 38. HP-Amp Power-up/down Time
Transition Time
FS3
FS2
FS1
FS0
PTS=00
(Default)
PTS=01
PTS=10
PTS=11
0
768/fs (17.4ms)
1536/fs (34.8ms)
3072/fs (69.7ms)
6144/fs (139ms)
Default
0
1
512/fs (16.0ms)
1024/fs (32.0ms)
2048/fs (64.0ms)
4096/fs (128ms)
0
1
0
768/fs (16.0ms)
1536/fs (32.0ms)
3072/fs (64.0ms)
6144/fs (128ms)
1
0
384/fs (17.4ms)
768/fs (34.8ms)
1536/fs (69.7ms)
3072/fs (139ms)
1
0
1
256/fs (16.0ms)
512/fs (32.0ms)
1024/fs (64.0ms)
2048/fs (128ms)
1
0
1
0
384/fs (16.0ms)
768/fs (32.0ms)
1536/fs (64.0ms)
3072/fs (128ms)
1
0
192/fs (17.4ms)
384/fs (34.8ms)
768/fs (69.7ms)
1536/fs (139ms)
1
0
1
128/fs (16.0ms)
256/fs (32.0ms)
512/fs (64.0ms)
1024/fs (128ms)
1
0
192/fs (16.0ms)
384/fs (32.0ms)
768/fs (64.0ms)
1536/fs (128ms)
Others
N/A
Table 39. HP-Amp Mute ON/OFF, Path ON/OFF & ALC2 Recovery Transition Time
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