Manual
MAX7030
Low-Cost, 315MHz, 345MHz, and 433.92MHz
ASK Transceiver with Fractional-N PLL
_______________________________________________________________________________________ 3
AC ELECTRICAL CHARACTERISTICS
(Typical Application Circuit, 50Ω system impedance, PAV
DD
= AV
DD
= DV
DD
= HV
IN
= +2.1V to +3.6V, f
RF
= 315MHz, 345MHz, or
433.92MHz, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at PAV
DD
= AV
DD
= DV
DD
= HV
IN
= +2.7V, T
A
= +25°C,
unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
GENERAL CHARACTERISTICS
Frequency Range
315/345/
433.92
MHz
Maximum Input Level P
RFIN
0
dBm
f
RF
= 315MHz (Note 6) 32
Transmit Efficiency 100% Duty
Cycle
f
RF
= 434MHz (Note 6) 30
%
f
RF
= 315MHz (Note 6) 24
Transmit Efficiency 50% Duty
Cycle
f
RF
= 434MHz (Note 6) 22
%
ENABLE or T/R transition low to high,
transmitter frequency settled to within
50kHz of the desired carrier
200
ENABLE or T/R transition low to high,
transmitter frequency settled to within 5kHz
of the desired carrier
350
Power-On Time t
ON
ENABLE transition low to high, or T/R
transition high to low, receiver startup time
(Note 5)
250
µs
RECEIVER
315MHz -114
Sensitivity
0.2% BER, 4kbps Manchester
data rate, 280kHz IF BW,
average RF power
434MHz -113
dBm
Image Rejection 46 dB
POWER AMPLIFIER
T
A
= +25°C (Note 4) 4.6
10.0 15.5
T
A
= +125°C, PAV
DD
= AV
DD
= DV
DD
=
HV
IN
= +2.1V (Note 2)
3.9 6.7
Output Power P
OUT
T
A
= -40°C, PAV
DD
= AV
DD
= DV
DD
=
HV
IN
= +3.6V (Note 4)
13.1 15.8
dBm
Modulation Depth 82 dB
Maximum Carrier Harmonics With output-matching network -40 dBc
Reference Spur -50 dBc
DC ELECTRICAL CHARACTERISTICS (continued)
(Typical Application Circuit, 50Ω system impedance, AV
DD
= DV
DD
= HV
IN
= PAV
DD
=
+2.1V to +3.6V, f
RF
= 315MHz, 345MHz, or
433.92MHz, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at AV
DD
= DV
DD
= HV
IN
= PAV
DD
=
+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 (HV
IN
= 5.5V)
20 µA
Output-Low Voltage V
OL
I
SINK
= 500µA
0.15
V
Output-High Voltage V
OH
I
SOURCE
= 500µA H V
IN
- 0.26 V