參數(shù)資料
型號(hào)： PCM1721
廠商： Texas Instruments, Inc.
英文描述： Stereo Audio Digital-To-Analog Converter With Programmable PLL(帶可編程PLL立體聲音頻D\A轉(zhuǎn)換器)
中文描述： 立體聲音頻數(shù)字模擬轉(zhuǎn)換器（帶可編程鎖相環(huán)立體聲音頻?\\阿轉(zhuǎn)換器，具有可編程鎖相環(huán)）
文件頁(yè)數(shù)： 12/16頁(yè)
文件大小： 227K
代理商： PCM1721
12
PCM1721
SF1
SF0
Sampling Frequency
0
0
1
1
0
1
0
1
44.1kHz group
48kHz group
32kHz group
Reserved
22.05/44.1/88.2kHz
24/48/96kHz
16/32/64kHz
Not Defined
Bits 6 (SF0) and 7 (SF1) are used to select the sampling
frequency:
Bit 8 is used to control the infinite zero detection function
(IZD).
When IZD is “LOW”, the zero detect circuit is off. Under
this condition, no automatic muting will occur if the input
is continuously zero. When IZD is “HIGH”, the zero detect
feature is enabled. If the input data is continuously zero for
65, 536 cycles of BCKIN, the output will be immediately
forced to a bipolar zero state (V
CC
/2). The zero detection
feature is used to avoid noise which may occur when the
input is DC. When the output is forced to bipolar zero,
there may be an audible click. PCM1721 allows the zero
detect feature to be disabled so the user can implement an
external muting circuit.
B15 B14 B13 B12 B11 B10 B9 B8 B7 B6
B5 B4
B3 B2 B1 B0
ML (pin 6)
MC (pin 7)
MD (pin 8)
FIGURE 7. Serial Interface Timing.
FIGURE 8. Program Register Input Timing.
1.4V
1.4V
1.4V
ML
MC
MD
MC Pulse Cycle Time
MC Pulse Width LOW
MC Pulse Width HIGH
MD Set-up Time
MC Hold Time
ML Low Level Time
ML Set-up Time
ML Hold Time
: t
MCY
: t
MCL
: t
MCH
: t
MDS
: t
MDH
: t
MLL
: t
MLS
: t
MLH
: 100ns (min)
: 50ns (min)
: 50ns (min)
: 30ns (min)
: 30ns (min)
: 30ns + 1SYSCLK (min)
: 30ns (min)
: 30ns (min)
t
MCY
t
MDS
t
MDH
t
MCH
t
MCL
t
MLS
t
MLH
t
MLL
相關(guān)PDF資料
PDF描述
PCM1723 Stereo Audio DIGITAL-TO-ANALOG CONVERTER WITH PROGRAMMABLE PLL
PCM1725 Stereo Audio DIGITAL-TO-ANALOG CONVERTER 16 Bits, 96kHz Sampling
PCM1725U Stereo Audio DIGITAL-TO-ANALOG CONVERTER 16 Bits, 96kHz Sampling
PCM1727 Stereo Audio DIGITAL-TO-ANALOG CONVERTER WITH PROGRAMMABLE DUAL PLL TM
PCM1728 24-Bit, 96kHz Sampling CMOS Delta-Sigma Stereo Audio DIGITAL-TO-ANALOG CONVERTER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCM1723 制造商:BB 制造商全稱:BB 功能描述:Stereo Audio DIGITAL-TO-ANALOG CONVERTER WITH PROGRAMMABLE PLL
PCM1723E 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC Ster DAC w/Prog PLL 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
PCM1723E/2K 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC Ster DAC w/Prog PLL 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
PCM1723E/2KG4 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC Ster DAC w/Prog PLL 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
PCM1723EG 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述:
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