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參數(shù)資料
| 型號： | AD1888JST |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | CONNECTOR |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封裝： | MS-026BBC, LQFP-48 |
| 文件頁數(shù)： | 18/32頁 |
| 文件大?。?/td> | 312K |
| 代理商： | AD1888JST |
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REV. 0
–18–
AD1888
NORMAL
ADCs OFF
PR0
DACs OFF
PR1
ANALOG
OFF
PR2 OR
PR3
DIGITAL I/F
OFF
PR4
SHUT OFF
AC-LINK
PR0 = 1
PR1 = 1
PR2 = 1
PR4 = 1
DEFAULT
PR0 = 0
AND
ADC = 1
PR1 = 0
AND
DAC = 1
PR2 = 0
AND
ANL = 1
WARM
RESET
COLD
RESET
READY = 1
Figure 8. One Example of AC ‘97 Power-Down/Power-Up Flow
Extended Audio ID Register (Index 28h)
Reg
No. Name
D15 D14 D13 D12 D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Default
28h Ext’d Audio ID ID1 ID0
X
X
REV1 REV0
AMAP LDAC
SDAC
CDAC
DSA1
DSA0
X
SPDIF DRA VRA x3C7h
The extended audio ID register identifies which extended audio features are supported. A nonzero extended audio ID value indicates one or more of the extended
audio features are supported. All registers not shown and bits containing an X are assumed to be reserved.
VRA
Variable Rate PCM Audio Support (Read Only).
This bit returns a 1 when read to indicate that the Variable Rate PCM Audio is supported.
DRA
Double Rate Audio (Read Only).
This bit returns a 1 when read to indicate that the optional Double Rate RCM Audio is supported for PCM L and
PCM R.
SPDIF
SPDIF Support (Read Only). This bit returns a 1 when read to indicate that the SPDIF transmitter is supported
(IEC958).
This bit is also used to validate that the SPDIF transmitter output is actually enabled. The SPDIF bit is only
allowed to be set high if the SPDIF pin (48) is pulled down at power-up, enabling the codec transmitter logic. If the
SPDIF pin is floating or pulled high at power-up, the transmitter logic is disabled and therefore this bit returns a
low, indicating that the SPDIF transmitter is not available. This bit must always be read back to verify that the
SPDIF transmitter is actually enabled.
DSA[1,0]
DAC Slot Assignments (Read/Write) (Reset Default = 00)
00 DACs 1, 2 = 3 and 4
DACs 3, 4 = 7 and 8
01 DACs 1, 2 = 7 and 8
DACs 3, 4 = 6 and 9
10 DACs 1, 2 = 6 and 9
DACs 3, 4 = disabled
11 Reserved
DACs 5, 6 = 6 and 9
DACs 5, 6 = disabled
DACs 5, 6 = disabled
CDAC
PCM CENTER DAC Support (Read Only).
This bit returns a 1 when read to indicate that PCM center DAC is supported.
SDAC
PCM Surround DAC Support (Read Only).
This bit returns a 1 when read to indicate that PCM surround left and right DACs are supported.
LDAC
PCM LFE DAC Support (Read Only),
This bit returns a 1 when read to indicate that PCM LFE DAC is supported.
AMAP
Slot DAC Mappings Based on Codec ID (Read Only).
This bit returns a 1 when read to indicate that slot/DAC mappings based on codec ID are supported.
REV[1,0]
REV[1,0] = 01 indicates codec is AC ’97 revision 2.2 compliant (Read Only).
ID[1:0]
Indicates Codec Configuration (Read Only).
00 = Primary
01, 10, 11 = Secondary
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD1888JST-REEL | CONNECTOR |
| AD1888JSTZ | CONNECTOR COAXIAL BNC |
| AD1888JSTZ-REEL | CONNECTOR COAXIAL BNC |
| AD1890JN | SamplePort Stereo Asynchronous Sample Rate Converters |
| AD1891JN | SamplePort Stereo Asynchronous Sample Rate Converters |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD1888JST-REEL | 制造商:Analog Devices 功能描述:Audio Codec 2ADC / 6DAC 20-Bit 48-Pin LQFP T/R |
| AD1888JSTZ | 制造商:AD 制造商全稱:Analog Devices 功能描述:AC 97 SoundMAX Codec |
| AD1888JSTZ-REEL | 制造商:AD 制造商全稱:Analog Devices 功能描述:AC 97 SoundMAX Codec |
| AD1889JS | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| AD1890 | 制造商:AD 制造商全稱:Analog Devices 功能描述:SamplePort Stereo Asynchronous Sample Rate Converters |
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