參數(shù)資料
型號： PCM1796
元件分類： DAC
英文描述： 24BIT 192 KHZ SAMPLING ADVANCED SEGMENT AUDIO STEREO DIGITAL TO ANALOG CONVERTER
中文描述： 24位192千赫采樣高級分段音頻立體聲數(shù)模轉(zhuǎn)換器
文件頁數(shù)： 26/57頁
文件大小： 512K
代理商： PCM1796
SLES100 DECEMBER 2003
www.ti.com
26
Register Map
The mode control register map is shown in Table 4. Registers 16–21 include an R/W bit, which determines whether
a register read (R/W = 1) or write (R/W = 0) operation is performed. Registers 22 and 23 are read-only.
Table 4. Mode Control Register Map
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
Register 16
R/W
0
0
1
0
0
0
0
ATL7
ATL6
ATL5
ATL4
ATL3
ATL2
ATL1
ATL0
Register 17
R/W
0
0
1
0
0
0
1
ATR7
ATR6
ATR5
ATR4
ATR3
ATR2
ATR1
ATR0
Register 18
R/W
0
0
1
0
0
1
0
ATLD
FMT2
FMT1
FMT0
DMF1
DMF0
DME
MUTE
Register 19
R/W
0
0
1
0
0
1
1
REV
ATS1
ATS0
OPE
RSV
DFMS
FLT
INZD
Register 20
R/W
0
0
1
0
1
0
0
RSV
SRST
DSD
DFTH
MONO
CHSL
OS1
OS0
Register 21
R/W
0
0
1
0
1
0
1
RSV
RSV
RSV
RSV
RSV
DZ1
DZ0
PCMZ
Register 22
R
0
0
1
0
1
1
0
RSV
RSV
RSV
RSV
RSV
RSV
ZFGR
ZFGL
Register 23
R
0
0
1
0
1
1
1
RSV
RSV
RSV
ID4
ID3
ID2
ID1
ID0
Register Definitions
B15
R/W
B14
0
B13
0
B12
1
B11
0
B10
0
B9
0
B8
0
B7
ATL7
B6
ATL6
B5
ATL5
B4
ATL4
B3
ATL3
B2
ATL2
B1
ATL1
B0
ATL0
Register 16
Register 17
R/W
0
0
1
0
0
0
1
ATR7
ATR6
ATR5
ATR4
ATR3
ATR2
ATR1
ATR0
R/W: Read/Write Mode Select
When R/W = 0, a write operation is performed.
When R/W = 1, a read operation is performed.
Default value: 0
ATx[7:0]: Digital Attenuation Level Setting
These bits are available for read and write.
Default value: 1111 1111b
Each DAC output has a digital attenuator associated with it. The attenuator can be set from 0 dB to –120 dB, in 0.5-dB
steps. Alternatively, the attenuator can be set to infinite attenuation (or mute).
The attenuation data for each channel can be set individually. However, the data load control (the ATLD bit of control
register 18) is common to both attenuators. ATLD must be set to 1 in order to change an attenuator setting. The
attenuation level can be set using the following formula:
Attenuation level (dB) = 0.5 dB
(ATx[7:0]
DEC
– 255)
where ATx[7:0]
DEC
= 0 through 255
For ATx[7:0]
DEC
= 0 through 14, the attenuator is set to infinite attenuation. The following table shows attenuation
levels for various settings:
ATx[7:0]
1111 1111b
1111 1110b
1111 1101b
Decimal Value
255
254
253
Attenuation Level Setting
0 dB, no attenuation (default)
–0.5 dB
–1.0 dB
0001 0000b
0000 1111b
0000 1110b
16
15
14
–119.5 dB
–120.0 dB
Mute
0000 0000b
0
Mute
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PDF描述
PCM1796DBR 24BIT 192 KHZ SAMPLING ADVANCED SEGMENT AUDIO STEREO DIGITAL TO ANALOG CONVERTER
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCM1796_06 制造商:BB 制造商全稱:BB 功能描述:24-BIT, 192-kHz SAMPLING, ADVANCED SEGMENT, AUDIO STEREO DIGITAL-TO-ANALOG CONVERTER
PCM1796DB 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC 24 bit 192kHz Stereo Audio DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉(zhuǎn)換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數(shù)量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel
PCM1796DB 制造商:Texas Instruments 功能描述:24BIT AUDIO DAC SMD 1796 SSOP28
PCM1796DBG4 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC 24 bit 192kHz Stereo Audio DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉(zhuǎn)換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數(shù)量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel
PCM1796DBR 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC 24 bit 192kHz Stereo Audio DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉(zhuǎn)換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數(shù)量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel
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