NCN5121_16 Datasheet, PDF (2/58 Pages) ON Semiconductor – Transceiver for KNX Twisted Pair Networks

CAV
VBUS1
CCP
TXO
VBUS2
FANIN
CEQ1 CEQ2 VFILT
NCN5121
BLOCK DIAGRAM
TRIG
VDDA VSSA
VDDD VSSD
Bus Coupler
Impedance
Control
Receiver
KNX
DLL
UART
SPI
Transmitter
Mode
Fan−In
Control
NCN5121
DC/DC
Converter 1
V20V
XTAL1
XTAL2
XSEL
XCLKC
XCLK
20V LDO
OSC
ANALOG
BUFFER
POR
RC
OSC
TW
TSD
UVD
DC/DC
Converter 2
Diagnostics
ANAOUT
SAVEB RESETB
Figure 1. Block Diagram NCN5121
PIN OUT
SCK/UC2
SDI/RXD
SDO/TXD
CSB/UC1
TREQ
MODE1
MODE2
VIN
VSW1
VDD1M
VDD1
VSS1
VSW2
VDD2MC
VDD2MV
VDD2
VSS2
VSSA 1
VBUS2 2
TXO 3
CCP 4
CAV 5
VBUS1 6
CEQ1 7
CEQ2 8
VFILT 9
V20V 10
NCN5121
30 VDDD
29 SCK/UC2
28 SDO/TXD
27 SDI/RXD
26 CSB/UC1
25 TREQ
24 MODE2
23 MODE1
22 TRIG
21 XCLKC
Figure 2. Pin Out NCN5121 (Top View)
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