Rainbow Electronics MAX7033 - Manual (Page 6)

MAX7033
315MHz/433MHz ASK Superheterodyne
Receiver with AGC Lock
6 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(Typical Application Circuit , AV
DD
= DV
DD
= V
DD5
= +3.3V, f
RF
= 315MHz, T
A
= +25°C, unless otherwise noted.)
SENSITIVITY vs. TEMPERATURE
MAX7033 toc04
TEMPERATURE ( °C)
SENSITIVITY (dBm)
85 60 35 10 -15
-122
-120
-118
-116
-114
-112
-110
-108
-124
-40 110
PEAK RF INPUT POWER
0.2% BER
IF BANDWIDTH = 280kHz
f RF = 433MHz
f RF = 315MHz
RSSI vs. RF INPUT POWER
MAX7033 toc05
RF INPUT POWER (dBm)
RSSI (V)
-20 -40 -60 -80 -100 -120
1.2
1.4
1.6
1.8
2.0
2.2
2.4
1.0
-140 0
IF BANDWIDTH = 280kHz
V AC = DV DD
V AC = 0V
RSSI AND DELTA
vs. IF INPUT POWER
MAX7033 toc06
IF INPUT POWER (dBm)
RSSI (V)
-10 -30 -50 -70
1.2
1.4
1.6
1.8
2.0
2.2
2.4
DELTA (%)
1.0
-90 10
-2.5
-1.5
-0.5
0.5
1.5
2.5
3.5
-3.5
DELTA
RSSI
LNA/MIXER VOLTAGE GAIN
vs. IF FREQUENCY
MAX7033 toc07
IF FREQUENCY (MHz)
SYSTEM GAIN (dB)
25 20 15 10 5
5
15
25
35
45
55
65
-5
0 30
UPPER
SIDEBAND
49dB IMAGE
REJECTION
LOWER
SIDEBAND
FROM RFIN
TO MIXOUT
f
RF
= 315MHz
IMAGE REJECTION
vs. RF FREQUENCY
MAX7033 toc08
RF FREQUENCY (MHz)
IMAGE REJECTION (dB)
460 440 420 400 380 360 340 320 300
35
40
45
50
55
30
280 480
f RF = 375MHz
f RF = 315MHz
f RF = 433MHz
IMAGE REJECTION
vs. TEMPERATURE
MAX7033 toc09
TEMPERATURE ( °C)
IMAGE REJECTION (dB)
60 35 10 -15
41.0
41.5
42.0
42.5
43.0
43.5
44.0
44.5
45.0
40.5
-40 85
f RF = 375MHz
f RF = 315MHz
f RF = 433MHz