mc13135dw Lansdale Semiconductor, Inc., mc13135dw Datasheet - Page 4

• Manufacturer Part Number: mc13135dw
• Description: Fm Communications Receiver; Dual Conversion Narrowband Fm Receiver
• Manufacturer: Lansdale Semiconductor, Inc.

ML13135
Page 4 of 11
– 70
–10
–30
–50
5.0
4.0
3.0
2.0
1.0
6.0
5.0
25
20
15
10
30
10
–100
0
0
0.5
0
Figure 2. Supply Current versus Supply Voltage
First Mixer Output
Figure 4. Varactor Capacitance, Resistance
C P , f = 150 MHz
V B , VARACTOR BIAS VOLTAGE, V Pin24 to V Pin 23 (Vdc)
– 90
Figure 6. Signal Levels versus RF Input
1.0
1.0
– 80
2.0
1.5
V CC , SUPPLY VOLTAGE (V)
versus Bias Voltage
– 70
RF in , RF INPUT (dBm)
3.0
C P , f = 50 MHz
2.0
Second Mixer Input
– 60
4.0
Second Mixer Output
2.5
RF in = 49.7 MHz
f MOD = 1.0 kHz
f DEV = ± 3.0 kHz
– 50
5.0
First Mixer Input
R P , f = 150 MHz
R P , f = 50 MHz
3.0
– 40
6.0
– 30
3.5
7.0
www.lansdale.com
– 20
8.0
4.0
10
8.0
6.0
4.0
2.0
0
1400
1200
1000
48.0
47.5
47.0
46.5
46.0
45.5
45.0
– 20
– 30
– 40
– 50
– 60
– 70
800
600
400
200
–10
10
–140
–130
0
1.0
V CC = 4.0 Vdc
RF in = 49.67 MHz
f MOD = 1.0 kHz
f DEV = ± 3.0 kHz
Figure 3. RSSI Output versus RF Input
Figure 7. Signal + Noise, Noise, and
–120
V CC = 4.0 V
RF in = 49.67 MHz
f MOD = 1.0 kHz
f DEV = ± 3.0 kHz
AM Rejection versus Input Power
–110
2.0
Figure 5. Oscillator Frequency
V B , VARACTOR BIAS VOLTAGE (Vdc)
500 p
5.0 p
27 p
versus Varactor Bias
–100
RF in , RF INPUT (dBm)
– 90
RF INPUT (dBm)
1
2
3.0
1st LO
LANSDALE Semiconductor, Inc.
– 80
Varicap
24
– 70
23
4.0
– 60
S + N
1.0 MΩ
500 p
S + N 30% AM
0.61 µH
N
– 50
5.0
– 40
0.2 µF
V B
– 20
– 30
6.0
Issue 0