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)： 16/21頁
文件大小： 248K
代理商： PCM4201PW
SBAS342A DECEMBER 2004 REVISED MARCH 2005
www.ti.com
16
APPLICATIONS INFORMATION
A typical connection diagram for the PCM4201 is shown
in Figure 11. Power supply bypass and reference
decoupling capacitors are included, and are labeled with
recommended values. The 0.1
μ
F capacitors should be
X7R ceramic chip type, although other low ESR capacitor
types may also be used. The 10
μ
F capacitors may be low
ESR tantalum, multilayer ceramic, or aluminum
electrolytic capacitors. Analog and digital ground pins
should be connected at a common point, preferably
beneath the PCM4201 package.
Printed circuit board layout is critical for best performance.
Please refer to the PCM4201EVM User’s Guide (TI
literature number SBAU108) for an example of a design
and layout that meets the published specifications for the
PCM4201.
INPUT BUFFER CIRCUIT EXAMPLES
The PCM4201 analog input requires some type of input
buffer or signal conditioning circuitry, especially when
interfacing to a microphone capsule. The input buffer or
amplifier must incorporate at least a single pole, RC
low-pass filter in order to provide antialias filtering for the
delta-sigma modulator. A filter with a 3dB corner
frequency in the range of 100kHz to 150kHz should be
sufficient for common audio output sampling rates equal to
or greater than 44.1kHz. However, a low-pass filter with a
lower corner frequency and possibly a higher filter order
will be required when running at the lower sampling rates,
depending upon the system requirements. Examples of
single-ended and differential input circuits are shown in
Figure 12 and Figure 13, respectively.
V
IN
+
V
IN
AGND
V
CC
RATE
S/M
RST
HPFD
V
REF
+
V
REF
DGND
V
DD
SCKI
BCK
FSYNC
DATA
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
PCM4201
From
Control
Logic
DSP, FPGA,
or
DIT4096
System Clock
0.1
μ
F
+10
μ
F
0.1
μ
F
+
10
μ
F
+1.8V to +3.6V
Analog
Input
Input
Buffer
10
μ
F
0.1
μ
F
+5V
+
Figure 11. Typical Connections for the PCM4201
相關(guān)PDF資料
PDF描述
PCM4201PWR Low Power, 24-Bit, Single Channel Audio Analog-to-Digital Converter
PCM4222_07 High-Performance, Two-Channel, 24-Bit, 216kHz Sampling Multi-Bit Delta-Sigma Analog-to-Digital Converter
PCM4222PFBG4 High-Performance, Two-Channel, 24-Bit, 216kHz Sampling Multi-Bit Delta-Sigma Analog-to-Digital Converter
PCM4222PFBRG4 High-Performance, Two-Channel, 24-Bit, 216kHz Sampling Multi-Bit Delta-Sigma Analog-to-Digital Converter
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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