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参数资料
| 型号： | PCM1737E |
| 英文描述： | 24-Bit, 192kHz Sampling Enhanced Multi-Level, Delta-Sigma, Audio DIGITAL-TO-ANALOG CONVERTER |
| 中文描述： | 24位192kHz采样增强的多级，Δ-Σ，音频数字模拟转换器 |
| 文件页数： | 8/27页 |
| 文件大小： | 180K |
| 代理商： | PCM1737E |
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16
PCM1737
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
Register 18
R/W
IDX6
IDX5
IDX4
IDX3
IDX2
IDX1
IDX0
res
OVER
res
INZD
ATLD
ATTS
MUT2
MUT1
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
MUTx
Soft Mute Control
Where, x = 1 or 2, corresponding to the DAC output VOUTL (x = 1) and VOUTR ( x = 2).
These bits are Read/Write.
Default Value: 0
MUTx = 0
Mute Disabled (default)
MUTx = 1
Mute Enabled
The mute bits, MUT1 and MUT2, are used to enable or disable the Soft Mute function for the corresponding
DAC outputs, VOUTL and VOUTR. The Soft Mute function is incorporated into the digital attenuators. When Mute
is disabled (MUTx = 0), the attenuator and DAC operate normally. When Mute is enabled by setting MUTx =
1, the digital attenuator for the corresponding output will be decremented from the current setting to the infinite
attenuation, one attenuator step (0.5dB) at a time, with the rate of change programmed by the ATTS bit. This
provides ‘pop-free’ muting of the DAC output.
By setting MUTx = 0, upon returning from Soft Mute, the attenuator will be incremented one step at a time to
the previously-programeed attenuator level.
ATTS
Attenuation Rate Select
This bit is Read/Write.
Default Value: 0
ATTS = 0
Attenuation rate is 2/fS (default)
ATTS = 1
Attenuation rate is 4/fS
Changes in attenuator levels are made by incrementing or decrementing the attenuator by one step (0.5dB) for
every 2/fS or 4/fS time interval until the programmed attenuator setting is reached. This helps to minimize audible
‘clicking’, or zipper noise while the attenuator is changing levels. The ATTS bit allows the user to select the rate
at which the attenuator is decremented/incremented during level transitions.
ATLD
Attenuation Control
This bit is Read/Write.
Default Value: 0
ATLD = 0
Attenuator Disabled (default)
ATLD = 1
Attenuator Enabled
The ATLD bit must be set to logic ‘1’ in order for the attenuators to function. Setting ATLD to logic ‘0’ will
disable the attenuator function and cause the current attenuator data to be lost.
Set ATLD = 1 immediately after reset.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PCM1737E/2K | 功能描述:音频数/模转换器 IC 24-Bit 192kHz Smplg Enh Mltl D-S DAC RoHS:否 制造商:Texas Instruments 转换器数量: 分辨率:16 bit 接口类型:I2S, UBS 转换速率: 信噪比:98 dB 工作电源电压:5 V DAC 输出端数量:2 工作温度范围:- 25 C to + 85 C 电源电流:23 mA 安装风格:SMD/SMT 封装 / 箱体:TQFP-32 封装:Reel |
| PCM1737E/2KG4 | 功能描述:音频数/模转换器 IC 24-Bit 192kHz Smplg Enh Mltl D-S DAC RoHS:否 制造商:Texas Instruments 转换器数量: 分辨率:16 bit 接口类型:I2S, UBS 转换速率: 信噪比:98 dB 工作电源电压:5 V DAC 输出端数量:2 工作温度范围:- 25 C to + 85 C 电源电流:23 mA 安装风格:SMD/SMT 封装 / 箱体:TQFP-32 封装:Reel |
| PCM1737E-1 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| PCM1737EG4 | 功能描述:音频数/模转换器 IC 24-Bit 192kHz Smplg Enh Mltl D-S DAC RoHS:否 制造商:Texas Instruments 转换器数量: 分辨率:16 bit 接口类型:I2S, UBS 转换速率: 信噪比:98 dB 工作电源电压:5 V DAC 输出端数量:2 工作温度范围:- 25 C to + 85 C 电源电流:23 mA 安装风格:SMD/SMT 封装 / 箱体:TQFP-32 封装:Reel |
| PCM1738 | 制造商:BB 制造商全称:BB 功能描述:24-Bit, 192kHz Sampling, Advanced Segment, Audio-Stereo DIGITAL-TO-ANALOG CONVERTER |
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