User's Manual

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Address : 1879 Lundy Ave, ste. 138, San Jose, CA 95131
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地址：天津市华苑产业区海泰西路 18 号西 3B-202（300384）
6
2.4 Selected RF Characteristics
Parameters Conditions Typical Unit
Antenna load 50 ohm
Radio Receiver
Sensitivity level
BER < .001
with DH5
-92 dBm
Maximum usable level
BER < .001
with DH1
0 dBm
Input VSWR 2.5:1
Radio Transmitter
Maximum output power 50 Ω load +12 dBm
Initial Carrier Frequency Tolerance 0 kHz
20 dB Bandwidth for modulated carrier 935 kHz
2.5 I/O Operating Characteristics
Symbol Parameter Min Max Unit Conditions
V
IL
Low-Level Input Voltage - 0.6 Volts V
IN
, 2.1V
V
IH
High-Level Input Voltage 1.4 - Volts V
IN
, 2.1V
V
OL
Low-Level Output Voltage - 0.4 Volts V
IN
, 2.1V
V
OH
High-Level Output Voltage 1.8 - Volts V
IN
, 2.1V
I
OL
Low –Level Output Current - 4.0 mA V
OL
= 0.4 V
I
OH
High-Level Output Current - 4.0 mA V
OH
= 1.8V
R
PU
Pull-up Resistor 80 120 KΩ Resistor Turned On
R
PD
Pull-down Resistor 80 120 KΩ Resistor Turned On