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參數(shù)資料
| 型號： | PCM1738 |
| 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)字模擬轉換器 |
| 文件頁數(shù)： | 15/33頁 |
| 文件大小： | 2274K |
| 代理商： | PCM1738 |
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PCM1738
SBAS174B
15
FUNCTIONAL DESCRIPTIONS
ZERO DETECT
When the PCM1738 detects that the audio input data in the
L-channel or R-channel is continuously zero for 1024f
S
, the
PCM1738 sets ZEROL (pin 2) or ZEROR (pin 3) to HIGH.
Setting the INZD bit of mode register 19 can set both analog
outputs to the bipolar zero level when the input data of both
channels are zero.
SOFT MUTE
The PCM1738 supports mute operation by both hardware
and software control. When MUTE (pin 15) is set to HIGH,
both analog outputs are turned to the bipolar zero level.
When the MUTE bit in mode register 18 is set to “1”, both
analog outputs are also turned to the bipolar zero level. The
speed to turn to the bipolar zero level is set by the ATS0 and
ATS1 bits in mode register 19.
SERIAL CONTROL INTERFACE
The serial control interface is a 4-wire synchronous serial
port that operates asynchronously to the serial audio inter-
face and the system clock (SCKI). The serial control inter-
face is utilized to program the on-chip mode registers. The
control interface includes MDO (pin 11), MDI (pin 12), MC
(pin 13), and CS (pin 14). MDO is the serial data output,
used to read back the values of the mode registers; MDI is
the serial data input, used to program the mode registers;
MC is the serial bit clock, used to shift data in and out of the
control port; and CS is the mode control enable, used to
enable the internal mode register access. Figures 6 and 7
show the format and timing for the serial control interface.
SYMBOL
PARAMETER
MIN
MAX
UNITS
t
MCY
t
MCL
t
MCH
t
MHH
t
MLS
t
MLH
t
MDH
t
MDS
t
MOS
MC Pulse Cycle Time
MC Low Level Time
MC High Level Time
CS High Level Time
CS Falling Edge to MC Rising Edge
CS Hold Time
(1)
MDI Hold Time
MDI Set-Up Time
MC Falling Edge to MDO Stable
100
40
40
80
15
15
15
15
ns
ns
ns
ns
ns
ns
ns
ns
ns
30
FIGURE 7. Control Interface Timing.
NOTE: (1) MC rising edge for LSB to CS rising edge.
50% of V
DD
50% of V
DD
50% of V
DD
ML
MC
MD
t
MLS
t
MCH
t
MCY
t
MDS
t
MDH
t
MCL
t
MHH
t
MLH
LSB
t
MOS
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| PCM1738E | 功能描述:音頻數(shù)/模轉換器 IC 24-Bit 192kHz Smplng Adv Stg Stereo DAC RoHS:否 制造商:Texas Instruments 轉換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 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 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| 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)/模轉換器 IC 24-Bit 192kHz Smplng Adv Stg Stereo DAC RoHS:否 制造商:Texas Instruments 轉換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 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 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| PCM1738E/2KG4 | 功能描述:音頻數(shù)/模轉換器 IC 24-Bit 192kHz Smplng Adv Stg Stereo DAC RoHS:否 制造商:Texas Instruments 轉換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 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 |
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