19699-002-XTP ON Semiconductor, 19699-002-XTP Datasheet - Page 16

• Manufacturer Part Number: 19699-002-XTP
• Manufacturer: ON Semiconductor

Specifications of 19699-002-XTP

• Number Of Transmitters: 1
• Power Supply Requirement: Dual
• Package Type: LQFP
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 44
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Lead Free Status / RoHS Status: Compliant

AMIS-49200
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
R
R
Vmid
A
B
H
are 1kHz ~ 10kHz and 10kHz ~ 100kHz, respectively. The values in the following figure are
f
3
H
R
f
VDRV
and C
B
L
=
=
2
1
R
π
2
A
1
π
4
.
CCINM
R
CCINP
F
R
23
24
Rev. 5 | Page 16 of 22 | www.onsemi.com
3
1 F
*
R
*
Figure 10: Current Control Circuit
R
F
1
4
F
*
1
2
C
*
Current Control
C
3
L
*
1
, of the high-pass filter is determined by C
C
*
C
4
2
Circuit
VCC
A4
Q =
Q =
L
L
. 0
CCOUT
25
1
44
2
*
R
R
F
1 F
2
C
C
3
4
=0.95
=0.95
I
Rf
BUS
1
and C
2
while cut-off frequency, f
H
,