OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

MAX2903ETI+T

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17
MAX2900–MAX2904
200mW Single-Chip Transmitter ICs for
868MHz/915MHz ISM Bands
4
Maxim Integrated
AC ELECTRICAL CHARACTERISTICS
(MAX290_ EV kits. V
CC
= +2.7V to +4.5V, R
RLPF
= 68kΩ, R
PWRSET
= 22kΩ, f
RF
= 917.28MHz (MAX2900/MAX2901/MAX2902) or f
RF
= 868MHz (MAX2903/MAX2904), VASK = VREG, f
REF
= 14.56MHz (MAX2900/MAX2901/MAX2902) or f
REF
= 13.62MHz
(MAX2903/MAX2904), chip rate on MODIN = 1.22Mbps, P
OUT
= +23dBm, T
A
= -40°C to +85°C. Typical values are at V
CC
= +4.5V,
T
A
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER CONDITIONS MIN -3σ TYP +3σ MAX U N I T S
ANALOG INPUT PINS
VTUNE Input Capacitance VTUNE = +1.35V 15 p F
DIGITAL INPUT PINS
Digital Input Pin Capacitance 3 p F
VCO AND SYNTHESIZERS SECTION
(MAX2900/MAX2901/MAX2902) 902 917.28 928
RFOUT Frequency Range
(MAX2903/MAX2904) 867 868 870
M H z
(MAX2900/MAX2901/MAX2902) 14 14.56 15
REFIN Reference Frequency
Range
(MAX2903/MAX2904) 13 13.78 14.5
M H z
REFDIV Fixed Reference Divider
Ratio
(MAX2900) 4 4 4
Table 4 (MAX2900) 249 256
Main Divider Ratios
(MAX2901/MAX2903) 62 63
(MAX2900) 3.5 3.64 3.75
PLL Comparison Frequency
(MAX2901/MAX2903) 13 15
M H z
VCO Buffer Output Power 300Ω d i ffer enti al l oad ( M AX 2901–M AX 2904) -12 d Bm
REFDIV Fixed Reference
Divider Ratio
(MAX2901/MAX2903) 1 1 1
VCO Phase Noise
At 100kHz offset, measured at RFOUT,
PLL loop BW = 5kHz
-101 d Bc/H z
(MAX2900/MAX2901/MAX2902) 44 65 86
VCO Tuning Gain
(MAX2903/MAX2904) 85
M H z/V
5kH z RM S
VCO Frequency Pulling with
OOK Modulation
OOKIN clocked at 19kHz, internal (crystal)
or external reference frequency 60 kH z p eak
PLL Phase Noise
Measured at RFOUT, 5kHz offset,
PLL loop BW = 50kHz
-96 d Bc/H z
REFOUT Voltage Swing 100 m V p - p
CPOUT Charge Pump Current 500 µA
Reference Spurs -62 d Bc
Reference Input Voltage for
Nominal Operation
Using an external frequency reference 200 300 m V
BPSK, OOK MODULATOR, AND PA
MODIN Frequency Range 1.2 8 M b /s
Modulation Filter Nominal 3dB
Bandwidth
1M H z
Modulation Filter Final Attenuation Measured at 30MHz 28 41 d B
Carrier Suppression 28 d B
Noise Power Density
At 960MHz (measured at RFOUT at
+23dBm output power)
-150 d Bc/H z
MAX2900–MAX2904
200mW Single-Chip Transmitter ICs for
868MHz/915MHz ISM Bands
5
Maxim Integrated
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX290_ EV kits. V
CC
= +2.7V to +4.5V, R
RLPF
= 68kΩ, R
PWRSET
= 22kΩ, f
RF
= 917.28MHz (MAX2900/MAX2901/MAX2902) or f
RF
= 868MHz (MAX2903/MAX2904), VASK = VREG, f
REF
= 14.56MHz (MAX2900/MAX2901/MAX2902) or f
REF
= 13.62MHz
(MAX2903/MAX2904), chip rate on MODIN = 1.22Mbps, P
OUT
= +23dBm, T
A
= -40°C to +85°C. Typical values are at V
CC
= +4.5V,
T
A
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER CONDITIONS MIN -3σ TYP +3σ MAX U N I T S
PWRSET = 22kΩ, V
CC
= +4.5V,
T
A
= +25°C
21 23.5 25
PWRSET = 22kΩ, V
CC
= +4.5V,
T
A
= -40°C to +85°C
20.5 25
RF Output Power
P WRS E T = 22kΩ , V
C C
= + 3.0V , T
A
= + 25°C 18 20 21
d Bm
f
RF
= 900MHz to 930MHz
(MAX2900/MAX2901/MAX2902)
0.3
RF Output Power Flatness
f
RF
= 867MHz to 870MHz
0.1
d B
Adjacent Channel Power Ratio PN sequence at 1.22MHz -17 d Bc
Alternate Channel Power Ratio PN sequence at 1.22MHz -26 d Bc
OOK Control Range 40 80 d B
OOKIN = high,
VASK = 0
41
ASK Output Power Adjustment
Range
ASK output power back-
off relative to max power
OOKIN = high,
VASK = 1V
16
d B
RFOUT Rise and Fall Time Square-wave signal applied on OOK 1 µs
At 2nd harmonic of RF output frequency
with external matching network
-50
At 3rd harmonic of RF output frequency
with external matching network
-51
At 4th harmonic of RF output frequency
with external matching network
-63
Out of 902MHz to 928MHz band other than
harmonics with external matching network
(MAX2900/MAX2901/MAX2902)
< -70
Spurious Emissions
Out of 867MHz to 870MHz band other than
harmonics with external matching network
(MAX2903/MAX2904)
< -70
d Bc
Unlocked, Out-of-Band Spurious
Output Level
Any condition when synthesizer unlocked
(pin LD low)
< -50 d Bm
Modulation off, measured at 960MHz, any
gain setting (MAX2900/MAX2901/MAX2902)
-126 -120
Noise Level Out of Band
Modulation off, measured at 900MHz, any
gain setting (MAX2903/MAX2904)
-126 -120
d Bm /H z
Output VSWR for Guaranteed
Stability
2:1
M axi m um Al l ow ab l e Outp ut V S WR 2:1
Note 1: Devices are production tested at T
A
= +25°C and +85°C. Min/Max values are guaranteed by design and characterization
over temperature and supply voltage.
MAX2900–MAX2904
200mW Single-Chip Transmitter ICs for
868MHz/915MHz ISM Bands
6
Maxim Integrated
Typical Operating Characteristics
(MAX290_ EV kits. V
CC
= +4.5V, f
RF
= 917.28MHz (MAX2900/MAX2901/MAX2902) or f
RF
= 868MHz (MAX2903/MAX2904), R
RLPF
=
68kΩ, R
PWRSET
= 22kΩ, VASK = VREG, f
REF
= 14.56MHz (MAX2900/MAX2901/MAX2902) or f
REF
= 13.78MHz (MAX2903/MAX2904),
chip rate on MODIN = 1.22 Mbps, RF output matching network optimized for +23dBm, V
CC
= 4.5V, T
A
= +25°C, unless
otherwise noted.)
SUPPLY CURRENT vs. V
CC
MAX2900 toc01
V
CC
(V)
SUPPLY CURRENT (mA)
4.03.53.0
90
100
110
120
130
140
150
160
80
2.5 4.5
T
A
= +85
°
C
T
A
= +25
°
C
T
A
= -40
°
C
SHUTDOWN CURRENT vs. V
CC
MAX2900 toc02
V
CC
(V)
SHUTDOWN CURRENT (μA)
4.03.53.0
1
10
100
0.1
2.5 4.5
T
A
= +85
°
C
T
A
= +25
°
C
T
A
= -40
°
C
OUTPUT POWER vs. V
CC
MAX2900 toc03
V
CC
(V)
OUTPUT POWER (dBm)
4.03.53.0
18
20
22
24
26
16
2.5 4.5
T
A
= +85
°
C
T
A
= +25
°
C
T
A
= -40
°
C
VCO PHASE NOISE AT 917.28MHz
MAX2900 toc04
-40dBc/Hz
-140dBc/Hz
FREQUENCY OFFSET (MHz)
VCO SUPPLY PUSHING vs. V
CC
MAX2900 toc05
V
CC
(V)
OUTPUT FREQUENCY (MHz)
4.03.53.0
915.5
916.0
916.5
917.0
917.5
918.0
915.0
2.5 4.5
PLL LOCK TIME
MAX2900 toc06
100kHz
-100kHz
START 0s
20kHz/div
STOP 30
μ
s
LOWPASS FILTER 3-dB RESPONSE
vs. R
RLPF
MAX2900 toc07
R
RLPF
(kΩ)
LOWPASS FILTER 3-dB BANDWIDTH (kHz)
6050403020
500
1000
1500
2000
2500
3000
3500
0
10 70
BPSK MODULATION OUTPUT vs. TIME
MAX2900 toc08
225deg
-225deg
45deg/div
START 0s
STOP 40μs
RF POWER vs. FREQUENCY
(MAX2900/MAX2901/MAX2902)
MAX2900 toc09
FREQUENCY (MHz)
RF POWER (dBm)
925920915910905
19
20
21
22
23
24
25
18
900 930
A
B
C
E
F
D
A: V
CC
= 4.5V, T
A
= -40
°
C
B: V
CC
= 4.5V, T
A
= +25
°
C
C: V
CC
= 4.5V, T
A
= +85
°
C
D: V
CC
= 2.7V, T
A
= -40
°
C
E: V
CC
= 2.7V, T
A
= +25
°
C
F: V
CC
= 2.7V, T
A
= +85
°
C
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17

MAX2903ETI+T

Mfr. #:
Buy MAX2903ETI+T
Manufacturer:
Maxim Integrated
Description:
RF Transmitter 200mW Sngl-Chip Txr 868/915MHz ISM Bands
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet