MAX2370ETM-T Maxim Integrated Products, MAX2370ETM-T Datasheet - Page 5

• Manufacturer Part Number: MAX2370ETM-T
• Description: RF Transmitter Complete 450MHz Quad rature Transmitter 4
• Manufacturer: Maxim Integrated Products

-100
-20
-40
-60
-80
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
30
25
20
15
10
20
5
0
0
0
RF OUTPUT POWER AND SUPPLY CURRENT
1050
400
1.0
RF GAIN, IMAGE SUPPRESSION, AND LO
(MAX2370 EV kit, V
455MHz, f
T
A
410 420
1.2 1.4
= +25°C, unless otherwise noted.)
SUPPRESSION vs. FREQUENCY
vs. GAIN-CONTROL VOLTAGE
IMAGE SUPPRESSION
1100
LO SUPPRESSION
POWER
430
1.6
RF FREQUENCY
RFPLL PORT S11
IF
GAIN
FREQUENCY (MHz)
1150
= 120MHz, R
440
1.8
MAGNITUDE
CURRENT
V
PHASE
Complete 450MHz Quadrature Transmitter
GC
450 460 470 480 490 500
2.0 2.2 2.4 2.6 2.8 3.0
(V)
1200
CC_
(MHz)
_______________________________________________________________________________________
= SHDN = IDLE = TXGATE = CS = 3.0V, f
1250
BIAS
MAX2370 toc07
MAX2370 toc04
MAX2370 toc01
= 10kΩ, V
1300
170
150
130
110
0
-10
-20
-30
-40
-50
-60
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
90
70
50
GC
= 2.5V, registers set according to Table 1, input voltage at I and Q = 130mV
-10
-20
-30
-40
-50
-60
-70
-80
-90
-10
-12
-14
-16
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
-2
-4
-6
-8
NORMALIZED IF OUTPUT POWER vs. IFG[2:0]
0
0
0
500
2.1
0
ACPR ±885kHz
520
IF OUTPUT POWER AND IF ACPR
vs. GAIN-CONTROL VOLTAGE
1
2.2
540 560 580
ACPR ±1.125MHz
2
IFG[2:0] (DECIMAL)
2.3
FREQUENCY (MHz)
MAGNITUDE
LO PORT S11
PHASE
3
V
GC
REF
600 620 640
2.4
(V)
4
= 19.2MHz, LO input power = -15dBm, f
ACPR ±1.98MHz
2.5
POWER
Typical Operating Characteristics
5
660
2.6
MAX2370 toc08
6
680
2.7
700
7
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-100
-110
-10
-20
-30
-40
-50
-60
-70
-80
-90
-10
-20
-30
-40
-50
-60
-70
-80
-90
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
20
10
0
0
2.1
400
CENTER: 120MHz, SPAN: 5MHz, RBW: 30kHz
P
ACPR ±885kHz
OUT
RF OUTPUT POWER AND RF ACPR
410
vs. GAIN-CONTROL VOLTAGE
= -12dBm
2.2
420 430 440
IF OUTPUT SPECTRUM
ACPR ±1.125MHz
LO
RFOUT PORT S22
2.3
FREQUENCY (MHz)
FREQUENCY
= 575MHz, f
V
MAGNITUDE
GC
2.4
450 460 470
PHASE
(V)
RMS
ACPR ±1.98MHz
POWER
2.5
differential,
RFOUT
480
2.6
MAX2370 toc06
490
=
2.7
500
5
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100