33990_06 Datasheet, PDF (2/16 Pages) Freescale Semiconductor, Inc – Enhanced Class B Serial Transceiver

INTERNAL BLOCK DIAGRAM
INTERNAL BLOCK DIAGRAM
VBAT
SLEEP
TX
RX
4X/LOOP
4.5 V
Reference
Digital Output
Driver
33990
Voltage
Regulator
Waveshaping
Filter
4X Enable
Loopback
Bus
Driver
Thermal
Shutdown
BUS
Loss of Ground
Protection
LOAD
GND
Note This device contains approximately 400 active transistors and 250 gates.
Figure 2. 33990 Simplified Internal Block Diagram
33990
2
Analog Integrated Circuit Device Data
Freescale Semiconductor