4.16 PCM Front DAC Rate Register (Index 2Ch) SR[15:0] Front DAC Sample Rate. The SR[15:0] bits can only be written when the VR" />
參數(shù)資料
型號(hào)： CS4299-JQZR
廠商： Cirrus Logic Inc
文件頁(yè)數(shù)： 22/52頁(yè)
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(lèi)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(dòng)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(lèi)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
29
4.16
PCM Front DAC Rate Register (Index 2Ch)
SR[15:0]
Front DAC Sample Rate. The SR[15:0] bits can only be written when the VRA bit of the Extend-
ed Audio Status/Control Register (Index 2Ah) is ‘set’. If the VRA bit is ‘clear’, all writes are ig-
nored and the register reads back BB80h; corresponding to a 48 kHz sample rate. If the VRA
bit is ‘set’, seven standard sample rates are available. If a sample rate written to the register is
not directly supported, the attempted value to be written will be decoded according to the ranges
indicated in Table 7. All register read transactions will reflect the actual value stored (column 2
in Table 7) and not the one attempted to be written.
Default
BB80h. This value corresponds to 48 kHz sample rate..
4.17
PCM L/R ADC Rate Register (Index 32h)
SR[15:0]
Left/Right ADC Sample Rate. The SR[15:0] bits can only be written when the VRA bit of the
Extended Audio Status/Control Register (Index 2Ah) is ‘set’. If the VRA bit is ‘clear’, all writes
are ignored and the register reads back BB80h; corresponding to a 48 kHz sample rate. If the
VRA bit is ‘set’, seven standard sample rates are available. If a sample rate written to the reg-
ister is not directly supported, the attempted value to be written will be decoded according to
the ranges indicated in Table 7. All register read transactions will reflect the actual value stored
(column 2 in Table 7) and not the one attempted to be written.
Default
BB80h. This value corresponds to 48 kHz sample rate.
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
SR15
SR14
SR13
SR12
SR11
SR10
SR9
SR8
SR7
SR6
SR5
SR4
SR3
SR2
SR1
SR0
Sample rate
(Hz)
SR[15:0]
SR[15:12]
Decode Range
8,000
1F40
0 or 1
11,025
2B11
2
16,000
3E80
3
22,050
5622
4 or 5
32,000
7D00
6 or 7
44,100
AC44
8, 9, or Ah
48,000
BB80
Bh, Ch, Dh, Eh, or Fh
Table 7. Standard Sample Rates
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
SR15
SR14
SR13
SR12
SR11
SR10
SR9
SR8
SR7
SR6
SR5
SR4
SR3
SR2
SR1
SR0
DS319PP6
29
CS4299
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