SFSL4.5MDB YAMAR [Yamar Electronics Ltd.], SFSL4.5MDB Datasheet - Page 9

• Manufacturer Part Number: SFSL4.5MDB
• Description: Independent DC-LIN Slave For Asynchronous Communication Over Noisy Lines
• Manufacturer: YAMAR [Yamar Electronics Ltd.]

When high, a detection of interference, switches the operating frequency. If at the new frequency, no
reception occurred for 2 sec, the operating frequency is switched back.
For designs with a single channel this pin should be tied to ground.
Output signal is raised while interference is detected on the DC-BUS.
Indicates the operating frequency, this is the configured frequency unless automatic frequency change
has been enabled and caused.
Modulated transmit signal output.
High when the device is transmitting a message.
Input to the internal comparator positive pin. It swings around RxN.
Input to the internal comparator negative pin. Its value should be about Vcc/2.
High when the device is in receive mode.
There are three sets of power signals, (Vcc, Gnd)*2 and VccPLL, GndPLL. See 4.7 for details.
Note: The FSA3157 can be replaced with an analog switch.
© 2007 Yamar Electronics Ltd.
4.3.2
4.3.3
4.4.1
4.4.2
4.4.3
4.4.4
4.4.5
4.4.6
4.3.4
Configuration lines (connect to Gnd or Vcc)
4.4
C57
1u
25
26
27
28
29
30
31
32
33
34
35
36
Line Interface
SigIn2
AutoFreqChange
AutoSleep
nSleep
SigIn3
Id0
Id1
nReset
Wake
F0F1-2
F0F1-3
Interf Hop
InterfHop
Interfer
MF0nF1
DTxO
TxOn
RxP
RxN
RxOn
Power Signals
VCC
Proprietary and Confidential Information of YAMAR Electronics Ltd.
ISL40
Figure 4.2 – Typical single channel line interface circuit
I/O lines
VCC
OscOut
Mode4
DRxN
Mode3
SigO3
SigO2
SigO1
SigO0
DRxP
OscIn
Gnd
Vcc
12
11
10
9
8
7
6
5
4
3
2
1
330K
12p
R2
C2
VCC
32.768KHz
VCC
10M
R1
R7
2K
X1
1M
R7
1M
R8
12p
C101
C1
0.1u
100
R34
330
R5
9
VccPLL
Ceramic Filter
C150
>47uF
100K
R101
VCC
TxOn
RxOn
C8
0.1u
C9
1n
R14
1K
R18
Q2
470
18
R19
C7
1n
R23
3.3K
R17
3.9K
C12
1n
R24
39K
R15
4.3K
Analog Interface
PZT2222
VCC
Q1
22 /0.25W
R3
C3
0.1
C10
1n
1
3
Vcc = 3.3V
FSA3157
VCC
4
6
6.8
R9
R11
1M
R8
1M
Protection Network
D1 BAS31
VCC
R4
2.2
DS-ISL40 R1.6
R13
2.2
C6
47p
R10
DC-Powerline
6.8
0.1u
C4
2.2nF/200V
R12
1K
C5