参数资料
| 型号： | AMIS-49250-XTP |
| 厂商： | ON Semiconductor |
| 文件页数： | 9/22页 |
| 文件大小： | 0K |
| 描述： | IC TXRX FIELDBUS MAU 44NQFP |
| 标准包装： | 2,500 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 1/1 |
| 规程： | MDS-MAU |
| 电源电压： | 4.75 V ~ 6.2 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 44-VFQFN 裸露焊盘 |
| 供应商设备封装： | 44-NQFP（7x7） |
| 包装： | 带卷 (TR) |
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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相关代理商/技术参数 |
参数描述 |
|---|---|
| AMIS-492X0 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Fieldbus MAU |
| AMIS492X0GEVB | 制造商:ON Semiconductor 功能描述:FIELDBUS EVAL BOARD - Bulk |
| AMIS-49587 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Power Line Carrier Modem |
| AMIS-49587_P2 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Power Line Carrier Modem |
| AMIS49587C5871G | 功能描述:电信线路管理 IC C587- NAF- AMIS49587 RoHS:否 制造商:STMicroelectronics 产品:PHY 接口类型:UART 电源电压-最大:18 V 电源电压-最小:8 V 电源电流:30 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VFQFPN-48 封装:Tray |
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