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參數(shù)資料
| 型號： | AMIS-49200-XTD |
| 廠商： | ON Semiconductor |
| 文件頁數(shù)： | 9/22頁 |
| 文件大小： | 0K |
| 描述： | TXRX FIELDBUS MAU 44-LQFP |
| 標準包裝： | 160 |
| 類型： | 收發(fā)器 |
| 驅動器/接收器數(shù)： | 1/1 |
| 規(guī)程： | MDS-MAU |
| 電源電壓： | 4.75 V ~ 6.2 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 44-LQFP |
| 供應商設備封裝： | 44-LQFP（10x10） |
| 包裝： | 托盤 |
| 產(chǎn)品目錄頁面： | 1116 (CN2011-ZH PDF) |
| 其它名稱： | 766-1019 |
AMIS-492x0
SIGIN
RF2
270K
RF1
75K
RF3
20K
RF4
54K
HPF
Vmid
1000pf
FLTOUT
FLT
Bandpass Filter
28
27
29
31
30
VCC
A2
VCC
A1
C3=220pf
To
Detectors
1000pf
C1
C2
C4=47pf
Signal
Input
Figure 11: Band Pass Filter
4.4.2. Receive Signal Detection
The carrier detector generates the receive activity (RxA) signal by detecting the input signal amplitude. Minimum amplitude is 100mVp-
p (TYP). A delay, determined by the capacitor connected between the CCD pin and GND, is added to avoid detection of transient
noise. The recommended value of CCD is 100pF. The output can drive a CMOS input of VDD supply voltage.
The zero-cross detector generates the receive signal (RxS) with minimum phase error (jitter) by detecting the transition between high
and low levels of the incoming Manchester code. Hysteresis of +40mV (TYP) is applied to avoid unnecessary switching by noise.
Once the carrier-detect goes active the hysteresis is removed and the switching point threshold is set to Vmid. The output can drive a
CMOS input of VDD supply voltage.
32
34
35
Zero-Cross Detector
Carrier Detector
Vtrip = Vmid
Vhyst = + 40mV
VHi50 = Vmid + 50mV
VLo50 = Vmid - 50mV
RXS
CCD
RXA
VCC
C2
VCC
C1
R
(1Meg)
C
(60pF)
Vmid
VCC
C2
VHi50
VLo50
RxSig
ZC Tript Pt
CD_Output
Level
Convert
VCC
VDD
Level
Convert
VDD
Filtered received signal
from Bandpass Filter
Figure 12: Receive Signal Detectors
Rev. 6 | Page 17 of 22 | www.onsemi.com
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AMIS-49200-XTP | 功能描述:總線收發(fā)器 FIELDBUS MAU PHY TRNSCVR RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| AMIS-49250-XTD | 功能描述:總線收發(fā)器 Field Bus MAU Transceiver RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| AMIS-49250-XTP | 功能描述:總線收發(fā)器 AMIS-49250 FIELDBUS MAU T RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| AMIS-492X0 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Fieldbus MAU |
| AMIS492X0GEVB | 制造商:ON Semiconductor 功能描述:FIELDBUS EVAL BOARD - Bulk |
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