NCN5192NGEVB
http://onsemi.com
2
Table 1. ELECTRICAL CHARACTERISTICS OF THE NCN5192NGEVB BOARD
Symbol
Characteristic
Min
Typ
Max
Units
V
DD
Supply Voltage
2.80
3.00
6.00
V
Current Consumption
I
DD
V
DD
= 2.80 V, idle
−
350
−
m
A
I
DD
V
DD
= 3.00 V, idle
−
360
−
m
A
I
DD
V
DD
= 6.00 V, idle
−
490
−
m
A
I
DD
External Clock, V
DD
= 3.00 V, idle
−
290
−
m
A
I
DD
External Clock, V
DD
= 2.80 V, idle
−
240
−
m
A
Transmitted Frequency
f
M
Mark “1”
−
1194
−
Hz
f
S
Space “0”
−
2204
−
Hz
Levels
V
TxA
Amplitude Transmit Output
−
500
−
mV p-p
V
CD
Carrier Detect Level
−
110
−
mV p-p
Reference Voltages
V
AREF
AREF
−
1.248
−
V
V
CDREF
CDREF
−
1.163
−
V
NCN5192 Description
The NCN5192 modem is a single-chip CMOS modem for
use in HART field instruments and masters. It includes
on-chip oscillator and a modulator and demodulator module
communicating with a UART without internal buffer, as
well as an internal 16 bit sigma delta DAC. The NCN5192
requires some external filter components and a 460.8 kHz,
921.6 kHz, or 1.84 MHz clock source. This clock source can
either be the interface oscillator by using a crystal or ceramic
resonator, or an external clock signal.
When the device is transmitting data, the receive module
is shut down and vice versa to conserve power. With simple
power-saving maneuvers, the IC can be made to operate
with a current consumption of as little as 250
m
A. The same
techniques apply as explained for the A5191HRT in the
Design Note “A5191HRT Design for Low-Power
Environments” (AND9030/D).
Test and Measurement Tools
Listed below are the tools used to acquire the values
presented in this evaluation board.
•
Oscilloscope: Tektronix DPO4101 1 GHz
•
Signal Generator: Agilent 33250A
www.BDTIC.com/ON/
