參數(shù)資料
型號(hào)： PCM4104
英文描述： High-Performance, 24-Bit, 216kHz sampling, Four-channel Audio Digital-to-Analog Converter
中文描述： 高性能24位，216kHz的采樣，四通道音頻數(shù)字模擬轉(zhuǎn)換器
文件頁(yè)數(shù)： 16/36頁(yè)
文件大小： 486K
代理商： PCM4104
$%
SBAS291C AUGUST 2003 REVISED DECEMBER 2004
www.ti.com
16
SCKI
t
SCKI
t
SCKIH
t
SCKIL
PARAMETER
DESCRIPTION
MIN
MAX
UNITS
System Clock Period
26
ns
t
SCKIH
System Clock High Pulse Time
12
ns
t
SCKIL
System Clock Low Pulse Time
12
ns
t
SCKI
Figure 4. System Clock Timing Requirements
RESET OPERATION
The PCM4104 includes three reset functions: power-on,
external, and software-controlled. This section describes
each of the three reset functions.
On power up, the internal reset signal is forced low, forcing
the PCM4104 into a reset state. The power-on reset circuit
monitors the V
DD
, V
CC
1, and V
CC
2 power supplies. When
V
DD
exceeds +2.0V (margin of error is
±
400mV) and V
CC
1
and V
CC
2 exceed +4.0V (margin of error is
±
400mV), the
internal reset signal is forced high. The PCM4104 then
waits for the system clock input (SCKI) to become active.
Once the system clock has been detected, the initialization
sequence begins. The initialization sequence requires
1024 system clock periods for completion. When the
initialization sequence is completed, the PCM4104 is
ready to accept audio data at the audio serial port. Figure 5
shows the power-on reset sequence timing.
If the PCM4104 is configured for Software mode control
via the SPI port, all control registers will be reset to their
default state during the initialization sequence. In both
Standalone and Software modes, the analog outputs for all
four channels are muted during the reset and initialization
sequence. While in mute state, the analog output pins are
driven to the bipolar zero voltage, or V
CC
/2.
The user may force a reset initialization sequence at any
time while the system clock input is active by utilizing the
RST input (pin 9). The RST input is active low, and requires
a minimum low pulse width of 40 nanoseconds. The
low-to-high transition of the applied reset signal will force
an initialization sequence to begin. As in the case of the
power-on reset, the initialization sequence requires 1024
system clock periods for completion. Figure 6 illustrates
the reset sequence initiated when using the RST input.
A reset initialization sequence is available in Software
mode, using the RST bit in Control Register 6
.
The RST bit
is active high. When RST is set to 1, a reset sequence is
initiated in the same fashion as an external reset applied
at the RST input.
Figure 7 shows the state of the analog outputs for the
PCM4104 before, during and after the reset operations.
相關(guān)PDF資料
PDF描述
PCM4104PFBR High-Performance, 24-Bit, 216kHz sampling, Four-channel Audio Digital-to-Analog Converter
PCM4104PFBT High-Performance, 24-Bit, 216kHz sampling, Four-channel Audio Digital-to-Analog Converter
PCM58J Precision, 18-Bit Monolithic Audio DIGITAL-TO-ANALOG CONVERTER
PCM58K Precision, 18-Bit Monolithic Audio DIGITAL-TO-ANALOG CONVERTER
PCM58P Precision, 18-Bit Monolithic Audio DIGITAL-TO-ANALOG CONVERTER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCM4104-EP 制造商:TI 制造商全稱:Texas Instruments 功能描述:High-Performance, 24-Bit, 216-kHz Sampling, Four-Channel Audio Digital-to-Analog Converter
PCM4104EVM 功能描述:音頻 IC 開發(fā)工具 PCM4104 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V
PCM4104IPFBREP 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC Hi-Perf 24B 216 kHz Sampling 4-Ch Audio 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
PCM4104PFBR 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC High-End 24-Bit 192kHz 4-Ch 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
PCM4104PFBRG4 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC High-End 24-Bit 192kHz 4-Ch 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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*