Datasheet

5Maxim Integrated
280MHz to 450MHz Programmable
ASK/FSK Transmitter
MAX7060
AC ELECTRICAL CHARACTERISTICS (5V OPERATION) (continued)
(Typical Application Circuit, 50I system impedance, tuned for 315MHz to 434MHz operation, V
DD5
= V
GPOVDD
= 4.5V to 5.5V, f
RF
=
280MHz to 450MHz, f
XTAL
= 15MHz to 16MHz, T
A
= -40NC to +125NC, unless otherwise noted. Typical values are at V
DD5
= V
GPOVDD
= +5V, T
A
= +25NC, PA matched for optimum output power, unless otherwise noted. All min and max values are 100% tested at T
A
= +125NC and guaranteed by design and characterization over temperature, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Carrier-Frequency Switching
Time
Time from end of SPI write or change of
FREQ0, FREQ1, or FREQ2 pins, to
frequency settled to within 5kHz of desired
carrier
60
Fs
PLL
VCO Gain K
VCO
340 MHz/V
PLL Phase Noise
f
RF
= 315MHz
10kHz offset -78
dBc/Hz
1MHz offset -97
f
RF
= 433.92MHz
10kHz offset -74
1MHz offset -97
Loop Bandwidth 300 kHz
Reference Frequency Input Level 500 mV
P-P
Frequency Divider Range 19 28
Frequency Deviation (FSK)
Q2 Q100
kHz
CRYSTAL OSCILLATOR
Crystal Frequency f
XTAL
15 to 16 MHz
Crystal Load Capacitance
(Note 3)
10 pF
POWER AMPLIFIER
Output Transmit Power (Note 1) P
OUT
Maximum output transmit power:
PApwr = 0x1E
+14.5
dBm
Minimum output transmit power:
PApwr = 0x00
-14
Power-Control Step Size 0.95 dB
Modulation Depth (Note 1) 70 dB
Maximum Carrier Harmonics
(Note 1)
-24 dBc
Reference Spur -42 dBc
PAOUT Capacitor Tuning Range 0 to 7.75 pF