AMIS-49250-XTP ON Semiconductor, AMIS-49250-XTP Datasheet - Page 16
![IC TXRX FIELDBUS MAU 44NQFP](/photos/6/86/68684/44-qfp_560bd_sml.jpg)
AMIS-49250-XTP
Manufacturer Part Number
AMIS-49250-XTP
Description
IC TXRX FIELDBUS MAU 44NQFP
Manufacturer
ON Semiconductor
Type
Transceiverr
Datasheet
1.AMIS-49200-XTD.pdf
(22 pages)
Specifications of AMIS-49250-XTP
Number Of Drivers/receivers
1/1
Protocol
MDS-MAU
Voltage - Supply
4.75 V ~ 6.2 V
Mounting Type
Surface Mount
Package / Case
44-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AMIS-49250-XTP
Manufacturer:
ON Semiconductor
Quantity:
10 000
AMIS-492x0
4.4 Receive Block
The receive block contains three sub-blocks, which are internally connected:
4.4.1. Band Pass Filter
The band pass filter is a series connection of a high-pass and a low-pass filters each having two poles. Each filter is comprised of a
voltage follower and on chip resisters, so only four external capacitors are necessary. The following figure shows an internal circuit and
the connection of external capacitors. Cut-off frequency, f
of the low-pass filter is determined by C
The possible ranges of f
recommended to obtain 1kHz and 47.6kHz cut-off frequencies.
1.
2.
3.
A band pass filter – to filter the desired incoming communication signal.
Carrier detector – generates the RxA signal by detecting the signal amplitude.
Zero-cross detector generates the RxS signal by detecting the high/low transitions of the Manchester code.
L
and f
H
are 1kHz ~ 10kHz and 10kHz ~ 100kHz, respectively. The values in the following figure are
f
3
H
f
and C
L
=
=
2
1
π
2
1
π
4
.
R
F
R
Rev. 6 | Page 16 of 22 | www.onsemi.com
3
1 F
*
R
*
Figure 10: Current Control Circuit
R
F
1
4
F
*
1
2
C
*
C
3
L
*
1
, of the high-pass filter is determined by C
C
*
C
4
2
Q =
Q =
L
L
. 0
1
44
2
*
R
R
F
1 F
2
C
C
3
4
=0.95
=0.95
1
and C
2
while cut-off frequency, f
H
,