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參數資料
| 型號： | PCM3001E |
| 元件分類： | Codec |
| 英文描述： | Stereo Audio CODEC 18-BITS, SERIAL INTERFACE TM |
| 中文描述： | 立體聲音頻編解碼器18位，串行接口商標 |
| 文件頁數： | 14/21頁 |
| 文件大小： | 212K |
| 代理商： | PCM3001E |
14
PCM3000/3001
POWER-ON RESET
Both the PCM3000 and PCM3001 have internal power-on
reset circuitry. Power-on reset occurs when system clock
(XTI or CLKIO) is active and V
DD
> 4.0V. For the PCM3001,
the system clock must complete a minimum of 3 complete
cycles prior to V
DD
> 4.0V to ensure proper reset operation.
The initialization sequence requires 1024 system cycles for
completion, as shown in Figure 7. Figure 10 shows the state
of the DAC and ADC outputs during and after the reset
sequence.
EXTERNAL RESET
The PCM3000 and PCM3001 include a reset input, RSTB
(pin 28). As shown in Figure 8, the external reset signal must
drive RSTB low for a minimum of 40 nanoseconds while
system clock is active in order to initiate the reset sequence.
Initialization starts on the rising edge of RSTB, and requires
1024 system clock cycles for completion. Figure 10 shows
the state of the DAC and ADC outputs during and after the
reset sequence.
FIGURE 9. Control Data Input Format.
B15 B14 B13 B12 B11 B10 B9 B8 B7 B6
B5 B4
B3 B2 B1 B0
ML
MC
MD
FIGURE 7. Internal Power-On Reset Timing.
1024 System Clock Periods
Reset
Reset Removal
4.4V
4.0V
3.6V
V
DD
Internal Reset
System Clock
(XTI or CLKIO)
FIGURE 8. External Forced Reset Timing.
1024 System Clock Periods
Reset
Reset Removal
System Clock
(XTI or CLKIO)
Internal Reset
RSTB
t
RST
t
RST
= 40ns minimum
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相關代理商/技術參數 |
參數描述 |
|---|---|
| PCM3001E/2K | 功能描述:接口—CODEC SoundPlus Ster Codec 18-bits Ser Intrfc RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉換速率:48 kSPs 接口類型:I2C ADC 數量:2 DAC 數量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
| PCM3001E/2KG4 | 功能描述:接口—CODEC SoundPlus Ster Codec 18-bits Ser Intrfc RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉換速率:48 kSPs 接口類型:I2C ADC 數量:2 DAC 數量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
| PCM3001EG | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| PCM3001EG4 | 功能描述:接口—CODEC SoundPlus Ster Codec 18-bits Ser Intrfc RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉換速率:48 kSPs 接口類型:I2C ADC 數量:2 DAC 數量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
| PCM3002 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16-/20-Bit Single-Ended Analog Input/Output SoundPlus8482， |
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