Datasheet

Electrical characteristics ST7538Q
10/44
Digital I/O 5V digital supply
V
IH
High Logic Level Input
Voltage
2V
V
IL
Low Logic Level input
Voltage
1.2 V
V
OH
High Logic Level Output
Voltage
I
OH
= -2mA
DVdd -0.75 V
V
OL
Low Logic Level Output
Voltage
I
OL
= 2mA
DVss + 0.3 V
Digital I/O 3.3V digital supply
V
IH
High Logic Level Input
Voltage
1.4 V
V
IL
Low Logic Level input
Voltage
0.8 V
V
OH
High Logic Level Output
Voltage
I
OH
= -2mA
DVdd -0.75 V
V
OL
Low Logic Level Output
Voltage
I
OL
= 2mA
DVss + 0.4 V
Oscillator
XIN
SWING
XIN Input Voltage swing External Clock. Figure 19 5V
XIN
OFFSET
XIN Input Voltage offset External Clock. Figure 19 2.5 V
DC XTAL Clock Duty Cycle External Clock. Figure 19 40 60 %
Xtal
Crystal Oscillator
frequency
Fundamental 16 MHz
Tclock Oscillator Period (1/Xtal) 62.5 ns
Xtal
ESR
External Oscillator Esr
Resistance
40 Ω
Xtal
CL
External Oscillator
Stabilization Capacitance
16 pF
Transmitter
IATO
Output Transmitting
Current on ATO
1mArms
V
ATO
Max Carrier Output AC
Voltage
R
CL
= 1.75kΩ
Vsense
(AC) = 0V
1.75 2.3 3.5
V
PP
V
ATODC
Output DC Voltage on ATO 1.7 2.1 2.5 V
Table 4. Electrical characteristics (continued)
(AVdd = DVdd = +5V, PAVcc =+9 V, PAVss, SGND = DVss = 0V, -40°C ≤ T
A
≤ 85°C, T
J
< 125 °C, fc = 86kHz,
other control register parameters as default value, unless otherwise specified)
Symbol Parameter Test condition Min Typ Max Unit