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參數(shù)資料
| 型號： | PCM4201PW |
| 英文描述： | Low Power, 24-Bit, Single Channel Audio Analog-to-Digital Converter |
| 中文描述： | 低功耗，24位，單聲道音頻模擬數(shù)字轉(zhuǎn)換器 |
| 文件頁數(shù)： | 17/21頁 |
| 文件大小： | 248K |
| 代理商： | PCM4201PW |
SBAS342A DECEMBER 2004 REVISED MARCH 2005
www.ti.com
17
For single-ended or unbalanced inputs, the input buffer
circuit shown in Figure 12 provides the conversion to a
differential signal required for the PCM4201 analog inputs.
The buffer circuit may be configured for the appropriate
gain/attenuation using resistors R1 and R2. Capacitor C1
is chosen to provide the low-pass corner frequency.
Additional low-pass filtering is provided by the RC network
at the output of the buffer.
A differential input buffer circuit is shown in Figure 13. Like
the
unbalanced
circuit,
gain/attenuation may be set by using the R1/R2 and R3/R4
resistor pairs. The resulting gain or attenuation must be the
same for both pairs. Filtering is provided by the feedback
capacitors and the capacitors at the buffer output. This
circuit configuration is used for the PCM4201EVM
evaluation module.
the
differential
buffer
40.2
40.2
100pF
100pF
NOTE: U1 = OPA2134 or equivalent.
V
IN
+
V
IN
0.022
μ
F
2.49k
2.49k
10k
10k
+
R2
R1
U1A
U1B
10
μ
F
to 100
μ
F
+5V
10
μ
F
0.1
μ
F
Analog
Input
C1
Figure 12. Single-Ended Input Buffer Circuit
100pF
NOTE: U1 = OPA2134 or equivalent.
40.2
V
IN
+
2700pF
+
R2
R4
100pF
40.2
V
IN
U1A
U1B
R1
10
μ
F
to 100
μ
F
0.1
μ
F
R3
3
2
1
Analog
Input
Ground
Lift
Switch
10
μ
F
to 100
μ
F
10k
10k
+5V
10
μ
F
1000pF
1000pF
Figure 13. Differential Input Buffer Circuit
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PDF描述 |
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| PCM4201PWR | Low Power, 24-Bit, Single Channel Audio Analog-to-Digital Converter |
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| PCM4222 | High-Performance, Two-Channel, 24-Bit, 216kHz Sampling Multi-Bit Delta-Sigma Analog-to-Digital Converter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCM4201PW | 制造商:Texas Instruments 功能描述:IC ADC 24-BIT AUDIO 1CH 16-TSSOP 制造商:Texas Instruments 功能描述:IC, ADC 24-BIT AUDIO 1CH 16-TSSOP 制造商:Texas Instruments 功能描述:IC, ADC 24-BIT AUDIO 1CH 16-TSSOP; Resolution (Bits):24bit; Sampling Rate:108kSPS; Supply Voltage Type:Single; Supply Voltage Min:4.75V; Supply Voltage Max:5.25V; Supply Current:13mA; Digital IC Case Style:TSSOP; No. of Pins:16; ;RoHS Compliant: Yes |
| PCM4201PWG4 | 功能描述:音頻模/數(shù)轉(zhuǎn)換器 IC Low Power 24-Bit Single Ch Audio A/D 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: |
| PCM4201PWR | 功能描述:音頻模/數(shù)轉(zhuǎn)換器 IC Low Power 24-Bit Single Ch Audio A/D 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: |
| PCM4201PWRG4 | 功能描述:音頻模/數(shù)轉(zhuǎn)換器 IC Low Power 24-Bit Single Ch Audio A/D 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: |
| PCM4202 | 制造商:BB 制造商全稱:BB 功能描述:High-Performance 24-Bit, 216kHz Sampling Stereo Audio Analog-to-Digital Converter |
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