Operating Temperature Range ......................... -40°C to +125°C
Storage Temperature Range ............................ -60°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) ................................. +300°C
Soldering Temperature (reflow) .......................................+260°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Electrical Characteristics
(Typical
Application Circuit,
all RF inputs and outputs are referenced to 50Ω, V
DD
= +2.1V to +3.6V, T
A
= -40°C to +125°C, unless
otherwise noted. Typical values are at V
DD
= +2.7V, T
A
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER
SYSTEM PERFORMANCE
Supply Voltage
V
DD
f
RF
= 315MHz
Supply Current
(Note 2)
I
DD
f
RF
= 433MHz
V
DATA
at 50% duty
cycle (Notes 3, 4)
PA on (Note 5)
PA off (Note 6)
V
DATA
at 50% duty
cycle (Notes 3, 4)
PA on (Note 5)
PA off (Note 6)
Standby Current
Frequency Range (Note 4)
Data Rate (Note 4)
Modulation Depth (Note 8)
I
STDBY
f
RF
ON to OFF P
OUT
ratio
T
A
= +25°C,
V
DD
= +2.7V
Output Power, PA On
(Notes 4, 5)
P
OUT
f
RF
= 300MHz to
450MHz
T
A
= +125°C,
V
DD
= +2.1V
T
A
= -40°C,
V
DD
= +3.6V
Turn-On Time
Transmit Efficiency with CW
(Notes 5, 9)
Transmit Efficiency with 50% OOK
(Notes 3, 9)
t
ON
Oscillator settled to within 50kHz
Oscillator settled to within 5kHz
f
RF
= 315MHz
f
RF
= 433MHz
f
RF
= 315MHz
f
RF
= 433MHz
9.6
5.9
13.1
V
DATA
< V
IL
for
more than WAIT
time (Notes 4, 7)
T
A
< +25°C
T
A
< +125°C
300
0
90
12.5
9.0
15.8
220
450
48
47
43
41
15.4
12.0
18.5
µs
%
%
dBm
2.1
7.7
13.8
1.7
8.0
14.0
1.9
40
550
3.6
14.1
25.4
2.8
14.4
25.7
3.1
130
2900
450
100
nA
MHz
kbps
dB
mA
V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
www.maximintegrated.com
Maxim Integrated
│
2
MAX7044
300MHz to 450MHz High-Efficiency,
Crystal-Based +13dBm ASK Transmitter
Electrical Characteristics (continued)
(Typical
Application Circuit,
all RF inputs and outputs are referenced to 50Ω, V
DD
= +2.1V to +3.6V, T
A
= -40°C to +125°C, unless
otherwise noted. Typical values are at V
DD
= +2.7V, T
A
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER
PHASE-LOCKED LOOP (PLL)
VCO Gain
Phase Noise
f
RF
= 315MHz
f
RF
= 433MHz
Maximum Carrier Harmonics
Reference Spur
Loop Bandwidth
Crystal Frequency
Frequency Pulling by V
DD
Crystal Load Capacitance
DATA INPUT
Data Input High
Data Input Low
Maximum Input Current
Pulldown Current
CLKOUT OUTPUT
Output Voltage Low
Output Voltage High
Load Capacitance
CLKOUT Frequency
V
OL
V
OH
C
LOAD
I
SINK
= 650µA (Note 4)
I
SOURCE
= 350µA (Note 4)
(Note 4)
0.25
V
DD
-
0.25
f
XTAL
/16
V
V
10
pF
Hz
V
IH
V
IL
V
DD
-
0.25
0.25
10
10
V
V
µA
µA
f
XTAL
f
RF
= 315MHz
f
RF
= 433MHz
f
RF
= 315MHz
f
RF
= 433MHz
f
OFFSET
= 100kHz
f
OFFSET
= 1MHz
f
OFFSET
= 1MHz
f
OFFSET
= 100kHz
330
-84
-91
-82
-89
-50
-50
-74
-80
1.6
f
RF
/32
3
3
dBc
dBc
MHz
MHz
ppm/V
pF
dBc/Hz
MHz/V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Note 1:
Supply current, output power, and efficiency are greatly dependent on board layout and PAOUT match.
Note 2:
Production tested at T
A
= +25°C with f
RF
= 300MHz and 450MHz. Guaranteed by design and characterization over tem-
perature and frequency.
Note 3:
50% duty cycle at 10kbps with Manchester coding.
Note 4:
Guaranteed by design and characterization, not production tested.
FPGA/CPLD
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