MC44302A データシートの表示（PDF） - Motorola => Freescale
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MC44302A Datasheet PDF : 28 Pages
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MC44302A
Figure 1. IF AGC Filter Voltage versus
Carrier Differential Input Voltage
2.5
VCC = 5.0 V
fC = 45.75 MHz
2.0 RF AGC Delay, Pin 15, Open
TA = 25°C
1.5
Input
1.0
Overload
Region
0.5
Figure 2. Carrier Differential Input Voltage versus
RF AGC Takeover Threshold
1000
VCC = 5.0 V
fC = 45.75 MHz
100 TA = 25°C
10
1.0
0
0.01
0.1
1.0
10
100
1000
CARRIER DIFFERENTIAL INPUT VOLTAGE (mVrms)
0.1
1.4
1.6
1.8
2.0
2.2
2.4
RF AGC TAKEOVER THRESHOLD, PIN 15 (V)
Figure 3. VCO Characteristics
1000
Hold–In Range
100
Figure 4. VCO Free–Running and Offset
Frequency Change versus Supply Voltage
100
100
fVCO = 22.875 MHz
C19, C20 = 33 pF
∆foffset
50 TA = 25°C
50
Sweep Capture Range
10
0
∆fVCO
0
Lock–In Range
1.0
VCC = 5.0 V
–50
fVCO = 22.875 MHz
0.1
C19, C20 = 33 pF
TA = 25°C
–100
0.01
–150
41
42
43
44
45
46
47
48
4.5
CARRIER FREQUENCY (MHz)
–50
–100
Readings are taken at five minute intervals
allowing the die temperature to stabilize.
–150
4.7
4.9
5.1
5.3
5.5
VCC, SUPPLY VOLTAGE (V)
Figure 5. PLL Filter Voltage versus
Carrier Frequency Change
4.8
VCC = 5.0 V
fVCO = 22.875 MHz
C19, C20 = 33 pF
4.0 TA = 25°C
3.2
2.4
1.6
–2.0
–1.0
0
1.0
CARRIER FREQUENCY CHANGE (MHz)
2.0
1.0
0
–1.0
–2.0
2.0
–2.0
Figure 6. AFT Output Current
versus Carrier Frequency Change
Pin 12 = Gnd
VCC = 5.0 V
fVCO = 22.875 MHz
C19, C20 = 33 pF
Pin 11 = 2.5 V
TA = 25°C
Pin 12 = VCC
–1.0
0
1.0
2.0
CARRIER FREQUENCY CHANGE (MHz)
MOTOROLA ANALOG IC DEVICE DATA
5
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