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參數(shù)資料
型號: PCM1773
元件分類: DAC
英文描述: LOW VOLTAGE AND LOW POWER STEREO AUDIO DIGITAL TO ANALOG CONVERTER WITH LINEOUT AMPIIFIER
中文描述: 低電壓和低功耗立體聲音頻數(shù)模轉(zhuǎn)換器與線路輸出AMPIIFIER
文件頁數(shù): 13/29頁
文件大小: 309K
代理商: PCM1773
SLES010D – SEPTEMBER 2001 – REVISED MAY 2004
www.ti.com
13
DETAILED DESCRIPTION
SYSTEM CLOCK, RESET, AND FUNCTIONS
System Clock Input
The PCM1772 and PCM1773 devices require a system clock for operating the digital interpolation filters and multilevel
-
Σ
modulators. The system clock is applied at terminal 16 (SCKI). Table 1 shows examples of system clock frequencies for
common audio sampling rates.
Figure 18 shows the timing requirements for the system clock input. For optimal performance, it is important to use a clock
source with low-phase jitter and noise.
Table 1. System Clock Frequency for Common Audio Sampling Frequencies
SAMPLING FREQUENCY, LRCK
SYSTEM CLOCK FREQUENCY, SCKI (MHz)
128 fS
6.144
192 fS
9.216
256 fS
12.288
384 fS
18.432
48 kHz
44.1 kHz
5.6448
8.4672
11.2896
16.9344
32 kHz
4.096
6.144
8.192
12.288
24 kHz
3.072
4.608
6.144
9.216
22.05 kHz
2.8224
4.2336
5.6448
8.4672
16 kHz
2.048
3.072
4.096
6.144
12 kHz
1.536
2.304
3.072
4.608
11.025 kHz
1.4112
2.1168
2.8224
4.2336
8 kHz
1.024
1.536
2.048
3.072
t(SCKH)
System Clock
Pulse Cycle Time
SCKI
t(SCKL)
0.7 VCC1
0.3 VCC1
1/(128 fS), 1/(192 fS), 1/(256 fS), and 1/(384 fS).
PARAMETERS
SYMBOL
t(SCKH)
t(SCKL)
MIN
7
UNIT
ns
System clock pulse width high
System clock pulse width low
7
ns
Figure 18. System Clock Timing
相關(guān)PDF資料
PDF描述
PCM1773PW LOW VOLTAGE AND LOW POWER STEREO AUDIO DIGITAL TO ANALOG CONVERTER WITH LINEOUT AMPIIFIER
PCM1773PWR LOW VOLTAGE AND LOW POWER STEREO AUDIO DIGITAL TO ANALOG CONVERTER WITH LINEOUT AMPIIFIER
PCM1773RGA LOW VOLTAGE AND LOW POWER STEREO AUDIO DIGITAL TO ANALOG CONVERTER WITH LINEOUT AMPIIFIER
PCM1773RGAR LOW VOLTAGE AND LOW POWER STEREO AUDIO DIGITAL TO ANALOG CONVERTER WITH LINEOUT AMPIIFIER
PCM1800 Single-Ended Analog Input 20-Bit Stereo ANALOG-TO-DIGITAL CONVERTER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCM1773PW 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC Lo-Vlt & Lo-Pwr Ster DAC w/Lineout Amp 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
PCM1773PWG4 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC Lo-Vlt & Lo-Pwr Ster DAC w/Lineout Amp 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
PCM1773PWR 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC Lo-Vlt & Lo-Pwr Ster DAC w/Lineout Amp 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
PCM1773PWRG4 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC Lo-Vlt & Lo-Pwr Ster DAC w/Lineout Amp 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
PCM1773RGA 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC Lo-Vlt & Lo-Pwr Ster DAC w/Lineout Amp 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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