mc145220 Freescale Semiconductor, Inc, mc145220 Datasheet - Page 6

• Manufacturer Part Number: mc145220
• Description: Dual Frequency Synthesizer
• Manufacturer: Freescale Semiconductor, Inc

* Power level at the input to the dc block.
MC145220
6
LOOP SPECIFICATIONS
Symbol
f XTAL
f out
P in
f ref
C in
—
t w
P in
f
Input Sensitivity Range, f in or f in
Difference Allowed Between f in and f in
Isolation Between f in and f in
Input Frequency, REF in Externally Driven in
Reference Mode (Figure 8)
Crystal Frequency, Crystal Mode (Figure 9)
Output Frequency, REF out (Figures 10 and 12)
Operating Frequency of the Phase Detectors
Output Pulse Width, R , V, R
(Figures 11 and 12)
Input Capacitance, REF in
(V+ = V+
Parameter
i
i
= 2.7 to 5.5 V unless otherwise indicated, GND = GND
i
, V
i
(Figure 7)
i
i
40 MHz
300 MHz
700 MHz
V in
ratio such that f R
to divide ratio such that REF out
C1
Capacitance; R Counter and REF Counter
same as above
C L = 25 pF
f R in Phase with f V , C L = 25 pF
30 pF, C2
400 mV p–p, R Counter set to divide
frequency < 300 MHz
frequency < 700 MHz
frequency < 1100 MHz
Test Condition
30 pF, Includes Stray
1 MHz, REF Counter set
i
, T A = – 40 to 85 C)
V+ = 2.7 V
V+ = 3.5 V
V+ = 4.5 V
V+ = 5.5 V
5 MHz
Operating Range
– 16
Min
– 2
– 5
15
dc
dc
16
Guaranteed
—
4
2
2
2
2
Max
125
10
27
10
13
15
15
MOTOROLA
8
6
4
5
1
5
dBm*
MHz
MHz
MHz
MHz
Unit
dB
dB
pF
ns