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參數(shù)資料
| 型號： | PCM1807PW |
| 英文描述： | Single-Ended, Analog-Input 24-Bit, 96-kHz Stereo A/D Converter |
| 中文描述： | 單端模擬輸入24位，96千赫立體聲A / D轉(zhuǎn)換器 |
| 文件頁數(shù)： | 20/29頁 |
| 文件大?。?/td> | 426K |
| 代理商： | PCM1807PW |
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POWER DOWN
T0083-01
48/f
in
or 48/f
S
Fade-In Start
Fade-In Complete
DOUT
DOUT
(Contents)
Reset: t
(RST)
Zero Data
SCKI
PDWN
Internal
Reset
Normal Data
Operation
Normal Data
BPZ
48/f
in
or 48/f
S
Fade-Out Start
Fade-Out Complete
Normal Data
Reset Release: t
(REL)
PCM1807
SLES147–SEPTEMBER 2005
The PDWN bit controls the operation of the PCM1807. During power-down mode, both supply current for the
analog section and clock signal for the digital section are shut down, and DOUT is forced to zero. Also, all
registers except the mode control registers are reset once. The PCM1807 minimizes power dissipation during the
power-down mode. When the PCM1807 takes power down or power up, fade-out or fade-in which is shown in
Figure 18
is asserted, respectively. The system clock must be input until the fade-out process completes and
prior to PDWN deassertion. The digital output is valid after the reset state is released and the time of 1024 SCKI
+ 8960/f
has elapsed. Because the fade-in operation is processed, it takes additional time of 48/f
or 48/f
until
the level corresponding to the analog input signal is obtained.
Figure 26
illustrates DOUT behavior on the
power-down and power-up sequence by PDWN.
SYMBOL
t
(RST)
t
(REL)
PARAMETER
MIN
MAX
UNIT
μ
s
μ
s
Delay time from SCKI resume to reset release
Delay time from reset release to DOUT output
1024 SCKI
8960/f
S
Figure 26. Power Up/Power Down Sequence by PDWN
Table 7. Power-Down Control
PDWN
0
1
POWER DOWN
Normal operation (default)
Power-down mode
20
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCM1807PW | 制造商:Texas Instruments 功能描述:IC ADC STER 24BIT 96KHZ 14-TSSOP 制造商:Texas Instruments 功能描述:IC, ADC STER 24BIT 96KHZ 14-TSSOP 制造商:Texas Instruments 功能描述:IC, ADC STER 24BIT 96KHZ 14-TSSOP; Resolution (Bits):24bit; Sampling Rate:96kSPS; Supply Voltage Type:Single; Supply Voltage Min:4.5V; Supply Voltage Max:5.5V; Supply Current:10.2mA; Digital IC Case Style:TSSOP; No. of Pins:14; Input;RoHS Compliant: Yes |
| PCM1807PWG4 | 功能描述:音頻模/數(shù)轉(zhuǎn)換器 IC 24-bit 96kHz Stereo Audio DAC RoHS:否 制造商:Wolfson Microelectronics 轉(zhuǎn)換速率: 分辨率: ADC 輸入端數(shù)量: 工作電源電壓: 最大工作溫度: 最小工作溫度: 安裝風(fēng)格: 封裝 / 箱體: 封裝: |
| PCM1807PWR | 功能描述:音頻模/數(shù)轉(zhuǎn)換器 IC 24-bit 96kHz Stereo Audio DAC RoHS:否 制造商:Wolfson Microelectronics 轉(zhuǎn)換速率: 分辨率: ADC 輸入端數(shù)量: 工作電源電壓: 最大工作溫度: 最小工作溫度: 安裝風(fēng)格: 封裝 / 箱體: 封裝: |
| PCM1807PWRG4 | 功能描述:音頻模/數(shù)轉(zhuǎn)換器 IC 24-bit 96kHz Stereo Audio DAC RoHS:否 制造商:Wolfson Microelectronics 轉(zhuǎn)換速率: 分辨率: ADC 輸入端數(shù)量: 工作電源電壓: 最大工作溫度: 最小工作溫度: 安裝風(fēng)格: 封裝 / 箱體: 封裝: |
| PCM1808PW | 功能描述:音頻模/數(shù)轉(zhuǎn)換器 IC Sgl-ended Ana Input 24B 96kHz Stereo ADC RoHS:否 制造商:Wolfson Microelectronics 轉(zhuǎn)換速率: 分辨率: ADC 輸入端數(shù)量: 工作電源電壓: 最大工作溫度: 最小工作溫度: 安裝風(fēng)格: 封裝 / 箱體: 封裝: |
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