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Low-Cost, 315MHz and 433.92MHz
ASK Transceiver with Fractional-N PLL
DC ELECTRICAL CHARACTERISTICS (continued)
(Typical Application Circuit, 50 Ω system impedance, V AVDD = V DVDD = V HVIN = V PAVDD = +2.1V to +3.6V, f RF = 315MHz or 433.92MHz,
T A = -40°C to +125°C, unless otherwise noted. Typical values are at V AVDD = V DVDD = V HVIN = V PAVDD = +2.7V,
T A = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Pulldown Sink Current
AGC0-2, ENABLE, T/ R , DATA (V HVIN = 5.5V)
20
μA
Output-Low Voltage
Output-High Voltage
V OL
V OH
I SINK = 500μA
I SOURCE = 500μA
0.15
V HVIN - 0.26
V
V
AC ELECTRICAL CHARACTERISTICS
(Typical Application Circuit, 50 Ω system impedance, V PAVDD = V AVDD = V DVDD = V HVIN = +2.1V to +3.6V, f RF = 315MHz or
433.92MHz, T A = -40°C to +125°C, unless otherwise noted. Typical values are at V PAVDD = V AVDD = V DVDD = V HVIN = +2.7V,
T A = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
GENERAL CHARACTERISTICS
Frequency Range
315/433.92
MHz
Maximum Input Level
Transmit Efficiency 100% Duty
Cycle
Transmit Efficiency 50% Duty
Cycle
P RFIN
f RF = 315MHz (Note 6)
f RF = 434MHz (Note 6)
f RF = 315MHz (Note 6)
f RF = 434MHz (Note 6)
0
32
30
24
22
dBm
%
%
ENABLE or T/ R transition low to high,
transmitter frequency settled to within
50kHz of the desired carrier
ENABLE or T/ R transition low to high,
200
Power-On Time
t ON
transmitter frequency settled to within
350
μs
5kHz of the desired carrier
ENABLE transition low to high, or T/ R
RECEIVER
transition high to low, receiver startup
time (Note 5)
250
Sensitivity
Image Rejection
0.2% BER, 4kbps Manchester
data rate, 280kHz IF BW,
average RF power
315MH
z
434MH
z
-114
-113
46
dBm
dB
POWER AMPLIFIER
T A = +25 ° C (Note 4)
4.6
10.0
15.5
Output Power
P OUT
T A = +125 ° C, V PAVDD = V AVDD = V DVDD =
V HVIN = +2.1V (Note 2)
3.9
6.7
dBm
Modulation Depth
T A = -40 ° C, V PAVDD = V AVDD = V DVDD =
V HVIN = +3.6V (Note 4)
13.1
82
15.8
dB
Maximum Carrier Harmonics
Reference Spur
With output-matching network
-40
-50
dBc
dBc
3
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