Manual

MAX7030
Low-Cost, 315MHz, 345MHz, and 433.92MHz
ASK Transceiver with Fractional-N PLL
4 _______________________________________________________________________________________
AC ELECTRICAL CHARACTERISTICS (continued)
(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
PHASE-LOCKED LOOP
Transmit VCO Gain K
VCO
340
MHz/V
10kHz offset, 200kHz loop BW -68
Transmit PLL Phase Noise
1MHz offset, 200kHz loop BW -98
dBc/Hz
Receive VCO Gain
340
MHz/V
10kHz offset, 500kHz loop BW -80
Receive PLL Phase Noise
1MHz offset, 500kHz loop BW -90
dBc/Hz
Transmit PLL
200
Loop Bandwidth
Receive PLL
500
kHz
Reference Frequency Input Level
0.5 V
P-P
LOW-NOISE AMPLIFIER/MIXER (Note 8)
f
RF
= 315MHz
1 - j4.7
LNA Input Impedance Z
INLNA
Normalized to 50Ω
f
RF
= 434MHz
1- j3.3
f
RF
= 315MHz 50
High-gain state
f
RF
= 434MHz 45
f
RF
= 315MHz 13
Voltage-Conversion Gain
Low-gain state
f
RF
= 434MHz 9
dB
High-gain state -42
Input-Referred, 3rd-Order
Intercept Point
IIP3
Low-gain state -6
dBm
Mixer-Output Impedance
330
Ω
LO Signal Feedthrough to
Antenna
-100
dBm
RSSI
Input Impedance
330
Ω
Operating Frequency f
IF
10.7
MHz
3dB Bandwidth 10 MHz
Gain 15
mV/dB
ANALOG BASEBAND
Maximum Data-Filter Bandwidth 50 kHz
Maximum Data-Slicer Bandwidth
100
kHz
Maximum Peak-Detector
Bandwidth
50 kHz
Manchester coded 33
Maximum Data Rate
Nonreturn to zero (NRZ) 66
kbps