MAX2140_05 Datasheet, PDF (7/13 Pages) Maxim Integrated Products – Complete SDARS Receiver

Complete SDARS Receiver
(T_A = +25°C, unless otherwise noted.)
0
-5
-10
-15
-20
-25
-30
2.2
0dBm
5dB/div
INPUT RETURN LOSS
vs. FREQUENCY
MAXIMUM RF AGC
MINIMUM RF AGC
2.3
2.4
2.5
FREQUENCY (GHz)
RF AGC SETTLING TIME
WITH 20dB STEP
RF AGC ATTACK
TIME
RF AGC DECAY
TIME
-50dBm
START TIME: 0µs
STOP TIME: 200µs
Typical Operating Characteristics
RF AGC ENGAGEMENT THRESHOLD
-10
-15
DIVIDER: /4
-20
-25
-30
DIVIDER: /8
-35
-40
0
4
8
12
16
20
RF AGC ENGAGEMENT SETTING
IF AGC ATTENUATION
vs. CONTROL VOLTAGE
70
R4 = 100Ω
60 ^{C32 = 0.1µF}
50
40
T_A = -40°C
30
T_A = +85°C
20
T_A = +25°C
10
0
0
0.6 1.2 1.8 2.4 3.0
CONTROL VOLTAGE (V)
RF AGC ATTENUATION
vs. CONTROL VOLTAGE
60
50
40 T_A = -40°C
30
T_A = +25°C
20
T_A = +85°C
10
0
0
0.6 1.2 1.8 2.4 3.0
CONTROL VOLTAGE (V)
IF AGC ATTENUATION
vs. CONTROL VOLTAGE
50
R4 = 5000Ω
C32 = 0.22µF
40
30
T_A = -40°C
20
T_A = +85°C
10
T_A = +25°C
0
0
0.6 1.2 1.8 2.4 3.0
CONTROL VOLTAGE (V)
LPF FREQUENCY RESPONSE
0dB
10.250000MHz
-27.278dB
-100dB
1MHz
16MHz
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