參數(shù)資料
型號(hào)： 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(jí)分段，音頻立體聲數(shù)字模擬轉(zhuǎn)換器
文件頁(yè)數(shù)： 25/33頁(yè)
文件大小： 2274K
代理商： PCM1738E
PCM1738
SBAS174B
25
FUNCTIONS AVAILABLE IN THE EXTERNAL DIGITAL-FILTER MODE
The external Digital-Filter mode allows access to the majority of the PCM1738’s mode control functions. Table IV shows the
register mapping available when the external Digital-Filter mode is selected, along with descriptions of functions that are modified
for this mode selection.
TABLE IV. Register Mapping in the External Digital-Filter Mode.
REGISTER
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
16
17
18
19
20
21
W/R
W/R
W/R
W/R
W/R
R
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
1
1
0
0
1
1
0
0
0
1
0
1
0
1
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
FMT2
–
SRST
RSV
FMT1
–
MRST
RSV
FMT0
OPE
DFTH
(1)
RSV
DME
(1)
–
OS1
ZFGR
CLKD
RSV
RSV
CLKE
CHSL
RSV
INZD
OS0
ZFGL
RSV
RSV
NOTE: (1) This bit is required for selection of the external Digital-Filter mode. (2) “–” = function disabled.
FMT[2:0]
Audio Data Format Selection
These bits are available for Read/Write.
Default Value: 000
FMT[2:0]
000
001
010
Other
Audio Data Format Select
16-Bit Right Justified Format (default)
20-Bit Right Justified Format
24-Bit Right Justified Format
N/A
OS[1:0]
Delta-Sigma Oversampling Rate Selection
These bits are available for Read/Write.
Default Value: 00
OS[1:0]
00
01
10
11
Operation Speed Select
8x f
WCK
(default)
Reserved
16x f
WCK
4x f
WCK
The effective oversampling rate is determined by the oversampling performed by both the external digital filter
and the delta-sigma modulator. For example, if the external digital filter is 8x oversampling, and the user selects
OS[1:0] = 0, then the delta-sigma modulator will oversample by 8x, resulting in an effective oversampling rate
of 64x.
ZFGx
Zero Detection Flag
When x = L or R, corresponding to the DAC output channel.
These bits are available only for Read back.
Default Value: 00
ZFGx = 0
ZFGx = 1
Not ZERO
ZERO Detected
When the PCM1738 detects that audio input data is continuously zero for 1024f
S
, the ZFGx bit is set to 1 for
the corresponding channel(s). Zero detect flags are also available at ZEROL (pin 2) and ZEROR (pin 3).
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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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