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參數資料
| 型號： | AD7873 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Touch Screen Digitizer |
| 中文描述： | 觸摸屏數字轉換器 |
| 文件頁數： | 12/28頁 |
| 文件大小： | 657K |
| 代理商： | AD7873 |
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AD7873
Rev. D | Page 12 of 28
–120
–100
–80
–60
–40
–20
0
P
0
10
20
30
40
50
60
70
80
90
100
V
CC
RIPPLE FREQUENCY (kHz)
0
V
= 3V
100mV p-p SINEWAVE ON +V
CC
V
REF
= 2.5V EXT REFERENCE
f
SAMPLE
= 125kHz,
f
IN
= 20kHz
Figure 23. AC PSRR vs. Supply Ripple Frequency
Figure 23 shows the power supply rejection ratio versus V
DD
supply frequency for the AD7873. The power supply rejection
ratio is defined as the ratio of the power in the ADC output at
full-scale frequency, f, to the power of a 100 mV sine wave
applied to the ADC V
CC
supply of frequency f
S
:
PSSR (dB)
= 10 log (
Pf/Pfs
)
where:
Pf
is power at frequency, f, in ADC output.
Pfs
is power at frequency,
f
S
, coupled onto the ADC V
CC
supply.
Here a 100 mV p-p sine wave is coupled onto the V
CC
supply.
Decoupling capacitors of 10 μF and 0.1 μF were used on the
supply.
相關PDF資料 |
PDF描述 |
|---|---|
| AD7873ACP | Touch Screen Digitizer |
| AD7873ACPZ | Touch Screen Digitizer |
| AD7873ACPZ3 | 10-Bit, 60 MSPS ADC SE/Diff, Int/Ext Ref., program. i/p range w/Pwrdown, comp. to ADS822/4/5/6/8 28-SSOP |
| AD7873ARQ | 10-Bit, 60 MSPS ADC SE/Diff, Int/Ext Ref., program. i/p range w/Pwrdown, comp. to ADS822/4/5/6/8 28-SSOP |
| AD7873ARU | Touch Screen Digitizer |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AD7873ACP | 制造商:Analog Devices 功能描述:TOUCH SCREEN DIGITIZER |
| AD7873ACP-REEL | 制造商:Analog Devices 功能描述:TOUCH SCREEN DIGITIZER |
| AD7873ACP-REEL7 | 制造商:Analog Devices 功能描述:TOUCH SCREEN DIGITIZER |
| AD7873ACPZ | 功能描述:IC ADC 12BIT TOUCHSCREEN 16LFCSP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 觸摸屏控制器 系列:- 標準包裝:96 系列:- 類型:- 觸摸面板接口:- 輸入數/鍵:- 分辨率（位）:- 評估套件:* 數據接口:- 數據速率/采樣率 (SPS，BPS):- 電壓基準:- 電源電壓:- 電流 - 電源:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:16-TSSOP 包裝:帶卷 (TR) |
| AD7873ACPZ3 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Touch Screen Digitizer |
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