參數(shù)資料
型號： PCM1738E
英文描述： 24-Bit, 192kHz Sampling, Advanced Segment, Audio-Stereo DIGITAL-TO-ANALOG CONVERTER
中文描述： 24位192kHz采樣，高級分段，音頻立體聲數(shù)字模擬轉(zhuǎn)換器
文件頁數(shù)： 17/33頁
文件大?。?/td> 2274K
代理商： PCM1738E
PCM1738
SBAS174B
17
REGISTER DEFINITIONS
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
REGISTER 16
W/R
0
0
1
0
0
0
0
ATL7
ATL6
ATL5
ATL4
ATL3
ATL2
ATL1
ATL0
REGISTER 17
W/R
0
0
1
0
0
0
1
ATR7
ATR6
ATR5
ATR4
ATR3
ATR2
ATR1
ATR0
W/R
Read/Write Mode Select
When W/R = 0, a Write operation is performed.
When W/R = 1, a Read operation is performed.
Default Value: 0
ATL/R[7:0]
Digital Attenuation Level Setting
These bits are Read/Write.
Default Value: 1111 1111
B
Each DAC output has a digital attenuator associated with it. The attenuator may be set from 0db to –120dB,
in 0.5dB steps. Alternatively, the attenuator may be set to infinite attenuation (or mute).
The attenuation data for each channel can be set individually. However, the data load control (ATLD bit of
Control Register 18) is common to both attenuators. ATLD must be set to “1” in order to change an
attenuator’s setting. The attenuation level may be set using the following formula:
Attenuation Level (dB) = 0.5dB (ATL/R[7:0]DEC – 255)
Where: ATL/R[7:0]DEC = 0 through 255
For: ATL/R[7:0]DEC = 0 through 14, the attenuator is set to infinite attenuation.
The following table shows attenuator levels for various settings.
ATL/R[7:0]
Decimal Value
Attenuator Level Setting
1111 1111
B
1111 1110
B
1111 1101
B
0001 0000
B
0000 1111
B
0000 1110
B
0000 0000
B
255
254
253
0dB, No Attenuation (default)
–0.5dB
–1.0dB
119.5dB
120.0dB
Mute
Mute
16
15
14
0
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
REGISTER 18
W/R
0
0
1
0
0
1
0
ATLD
FMT2
FMT1
FMT0
DMF1
DMF0
DME
MUTE
W/R
Read/Write Mode Control
When W/R = 0, a Write operation is performed.
When W/R = 1, a Read operation is performed.
Default Value: 0
ATLD
Attenuation Load Control
This bit is Read/Write.
Default Value: 0
ATLD = 0
ATLD = 1
Attenuation Control Disabled (default)
Attenuation Control Enabled
The ATLD bit is used to enable loading of attenuation data set by Register 16 through 17. When ATLD = 0,
the attenuation settings remain at the previously programmed level, ignoring new data loaded to Register 16
through 17. When ATLD = 1, attenuation data written to Register 16 through 17 is loaded normally.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCM1738E 制造商:Texas Instruments 功能描述:D/A CONVERTER (D-A) IC
PCM1738E/2K 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC 24-Bit 192kHz Smplng Adv Stg Stereo 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
PCM1738E/2KG4 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC 24-Bit 192kHz Smplng Adv Stg Stereo 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
PCM1738E2K 制造商:BB 制造商全稱:BB 功能描述:24-Bit, 192kHz Sampling, Advanced Segment, Audio-Stereo DIGITAL-TO-ANALOG CONVERTER
PCM1738EG4 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC 24-Bit 192kHz Smplng Adv Stg Stereo 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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