MAX2903ETI+T Maxim Integrated Products, MAX2903ETI+T Datasheet - Page 6

• Manufacturer Part Number: MAX2903ETI+T
• Description: RF Transmitter IC TX 868MHZ 200MW ansmitter ICs for 86
• Manufacturer: Maxim Integrated Products

Specifications of MAX2903ETI+T

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

-140dBc/Hz
200mW Single-Chip Transmitter ICs for
868MHz/915MHz ISM Bands
(MAX290_ EV kits. V
68kΩ, R
chip rate on MODIN = 1.22 Mbps, RF output matching network optimized for +23dBm, V
otherwise noted.)
-40dBc/Hz
6
3500
3000
2500
2000
1500
1000
160
150
140
130
120
110
100
500
_______________________________________________________________________________________
90
80
0
2.5
10
PWRSET
LOWPASS FILTER 3-dB RESPONSE
VCO PHASE NOISE AT 917.28MHz
20
SUPPLY CURRENT vs. V
3.0
FREQUENCY OFFSET (MHz)
= 22kΩ, VASK = VREG, f
T
30
A
= +25°C
vs. R
CC
R
RLPF
V
CC
3.5
40
T
= +4.5V, f
RLPF
A
(V)
(kΩ)
= +85°C
50
T
A
= -40°C
4.0
CC
RF
60
= 917.28MHz (MAX2900/MAX2901/MAX2902) or f
4.5
70
REF
45deg/div
= 14.56MHz (MAX2900/MAX2901/MAX2902) or f
-225deg
225deg
918.0
917.5
917.0
916.5
916.0
915.5
915.0
100
0.1
10
1
2.5
2.5
START 0s
BPSK MODULATION OUTPUT vs. TIME
SHUTDOWN CURRENT vs. V
VCO SUPPLY PUSHING vs. V
3.0
3.0
T
A
= +85°C
T
V
A
V
CC
CC
= -40°C
3.5
3.5
(V)
(V)
Typical Operating Characteristics
4.0
4.0
T
A
STOP 40μs
= +25°C
CC
CC
4.5
4.5
RF
= 868MHz (MAX2903/MAX2904), R
20kHz/div
-100kHz
100kHz
REF
26
24
22
20
18
16
25
24
23
22
21
20
19
18
2.5
900
START 0s
= 13.78MHz (MAX2903/MAX2904),
CC
D
F
A
B
C
E
(MAX2900/MAX2901/MAX2902)
= 4.5V, T
905
RF POWER vs. FREQUENCY
OUTPUT POWER vs. V
T
3.0
A
= +25°C
910
PLL LOCK TIME
FREQUENCY (MHz)
A: V
B: V
C: V
D: V
E: V
F: V
V
A
CC
T
3.5
915
A
CC
CC
CC
CC
CC
CC
= +25°C, unless
= +85°C
(V)
= 2.7V, T
= 2.7V, T
= 4.5V, T
= 4.5V, T
= 4.5V, T
= 2.7V, T
920
T
4.0
A
A
A
A
A
A
A
CC
= +25°C
= +85°C
= -40°C
= -40°C
= +25°C
= +85°C
= -40°C
STOP 30μs
925
RLPF
4.5
930
=