- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄367827 > PCM1748KE 24-Bit, 96kHz Sampling Enhanced Multilevel, Delta-Sigma, Audio DIGITAL-TO-ANALOG CONVERTER PDF資料下載
參數(shù)資料
| 型號： | PCM1748KE |
| 英文描述： | 24-Bit, 96kHz Sampling Enhanced Multilevel, Delta-Sigma, Audio DIGITAL-TO-ANALOG CONVERTER |
| 中文描述： | 24位，96kHz采樣加強(qiáng)多層次，Δ-Σ，音頻數(shù)字模擬轉(zhuǎn)換器 |
| 文件頁數(shù)： | 20/22頁 |
| 文件大小： | 323K |
| 代理商： | PCM1748KE |
PCM1748
SBAS165
20
FIGURE 18. Test Setup for Dynamic Range and SNR Meeasurements.
S/PDIF
Receiver
Evaluation Board
PCM1748
(1)
DEM-DAI1748
2nd-Order
Low-Pass
Filter
Notch Filter
Band Limit
HPF = 22Hz
LPF = 22kHz
Option = A-Weighting
(2)
f
C
= 1kHz
f
–
3dB
= 54kHz
0% Full-Scale,
Dither Off (SNR)
–
60dBFS,
1kHz Sine Wave
(Dynamic Range)
S/PDIF
Output
A-Weight
Filter
(1)
rms Mode
Analyzer
and
Display
Digital
Generator
NOTES: (1) Infinite Zero Detect Mute disabled.
(2) Results without A-Weighting will be approxi-
mately 3dB worse.
Dynamic Range
Dynamic range is specified as A-Weighted, THD+N mea-
sured with a –60dBFS, 1kHz digital sine wave stimulus at
the input of the DAC. This measurement is designed to give
a good indicator of how the DAC will perform given a low-
level input signal.
The measurement setup for the dynamic range measurement
is shown in Figure 18, and is similar to the THD+N test
setup discussed previously. The differences include the band
limit filter selection, the additional A-Weighting filter, and
the –60dBFS input level.
Idle Channel Signal-to-Noise Ratio
The SNR test provides a measure of the noise floor of the
DAC. The input to the DAC is all “0”s data, and the DAC’s
Infinite Zero Detect Mute function must be disabled (default
condition at power up for the PCM1748). This ensures that
the delta-sigma modulator output is connected to the output
amplifier circuit so that idle tones (if present) can be ob-
served and effect the SNR measurement. The dither function
of the digital generator must also be disabled to ensure an all
“0”s data stream at the input of the DAC. The measurement
setup for SNR is identical to that used for dynamic range,
with the exception of the input signal level (see the notes
provided in Figure 18).
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCM1750 | Dual CMOS 18-Bit Monolithic Audio ANALOG-TO-DIGITAL CONVERTER |
| PCM1750P | Dual CMOS 18-Bit Monolithic Audio ANALOG-TO-DIGITAL CONVERTER |
| PCM1750U | Dual CMOS 18-Bit Monolithic Audio ANALOG-TO-DIGITAL CONVERTER |
| PCM1753DBQR | 24-BIT, 192 kHz SAMPLING ENHANCED MULTI-LEVEL, DELTA-SIGMA, AUDIO DIGITAL-TO-ANALOG CONVERTER |
| PCM1755DBQR | 24-BIT, 192 kHz SAMPLING ENHANCED MULTI-LEVEL, DELTA-SIGMA, AUDIO DIGITAL-TO-ANALOG CONVERTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCM1748KE/2K | 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC 24Bit/192kHz Smplg 6Ch Enh Mltl D-S 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 |
| PCM1748KE/2KG4 | 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC 24Bit/192kHz Smplg 6Ch Enh Mltl D-S 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 |
| PCM1748KEG4 | 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC 24Bit/192kHz Smplg 6Ch Enh Mltl D-S 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 |
| PCM-175 | 功能描述:電線鑒定 Pre-Printed WM Card, Vinyl Cloth, .22" W RoHS:否 制造商:TE Connectivity / Q-Cees 產(chǎn)品:Labels and Signs 類型: 材料:Vinyl 顏色:Blue 寬度:0.625 in 長度:1 in |
| PCM175/100 G | 制造商:Fibox 功能描述:Bulk |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。