4.18 AC Mode Control Register (Index 5Eh) DDM DAC Direct Mode. This bit controls the source to the line and alternate line out" />
參數(shù)資料
型號： CS4299-JQZR
廠商： Cirrus Logic Inc
文件頁數(shù)： 24/52頁
文件大小： 0K
描述： IC CODEC AC 97 W/SRC 48-LQFP
標(biāo)準(zhǔn)包裝： 2,000
系列： SoundFusion™
類型： 音頻編解碼器 '97
數(shù)據(jù)接口： 串行
分辨率（位）： 18 b，20 b
ADC / DAC 數(shù)量： 1 / 1
三角積分調(diào)變： 是
動態(tài)范圍，標(biāo)準(zhǔn) ADC / DAC (db)： 85 / 87
電壓 - 電源，模擬： 4.75 V ~ 5.25 V
電壓 - 電源，數(shù)字： 4.75 V ~ 5.25 V
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 48-LQFP
供應(yīng)商設(shè)備封裝： 48-LQFP（7x7）
包裝： 帶卷 (TR)
CS4299
30
4.18
AC Mode Control Register (Index 5Eh)
DDM
DAC Direct Mode. This bit controls the source to the line and alternate line output drivers. When
‘set’, the L/R DACs directly drive the line and alternate line outputs by bypassing the audio mix-
er. When ‘clear’, the audio mixer is the source for the line and alternate line outputs.
AMAP
Audio Slot Mapping. This read/write bit controls whether the CS4299 responds to the Codec ID
based slot mapping as outlined in the AC ’97 2.1 specification. The bit is shadowed in the Ex-
tended Audio ID Register (Index 28h). Refer to Table 8 for the slot mapping configurations.
SM[1:0]
Slot Map. The SM[1:0] bits define the Slot Mapping for the CS4299 when the AMAP bit is
‘cleared’. Refer to Table 8 for the slot mapping configurations.
Default
0080h
4.19
Misc. Crystal Control Register (Index 60h)
LOSM
Loss of SYNC Mute Enable. The LOSM bit controls the loss of SYNC mute function. If this bit
is ‘set’, the CS4299 will mute all analog outputs for the duration of loss of SYNC. If this bit is
‘cleared’, the mixer will continue to function normally during loss of SYNC. The CS4299 ex-
pects to sample SYNC ‘high’ for 16 consecutive BIT_CLK periods and then ‘low’ for 240 con-
secutive BIT_CLK periods, otherwise loss of SYNC becomes true.
Default
0023h
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
00
0
DDM
AMAP
0
SM1
SM0
00
Slot
Assignment
Mode
Codec ID
Slot Map
AMAP
Slot Assignments
ID1
ID0 SM1 SM0
DAC,
SPDIF
ADC
LR
AMAP Mode 0
0
X
1
3434
AMAP Mode 1
0
1
X
1
3434
AMAP Mode 2
1
0
X
1
7878
AMAP Mode 3
1
X
1
6969
Slot Map Mode 0
X
0
3434
Slot Map Mode 1
X
0
1
0
5656
Slot Map Mode 2
X
1
0
7878
Slot Map Mode 3
X
1
0
9
10
9
10
Table 8. Slot Mapping
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
00
Reserved
00
Reserved
0
Reserved
LOSM
30
DS319PP6
CS4299
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