SP8795 Просмотр технического описания (PDF) - Zarlink Semiconductor Inc
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SP8795 Datasheet PDF : 5 Pages
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SP8795
ELECTRICAL CHARACTERISTICS
Test conditions (unless otherwise stated):]
Supply voltage : Vcc 1 & 2 = 5.2 ± 0.25V or 6.8V to 9.5V (see Operating Note 7):
VEE = 0V; Temperature Tamb = -40°C to +85°C
Characteristics
Symbol
Value
Min.
Max.
Units
Notes
Conditions
Maximum frequency
(sinewave input))
fmax
225
MHz
Note 4
Input = 200-800mV p-p
Minimum frequency
fmin
(sinewave input)
20
MHz
Note 4
Input = 400-800mV p-p
Power supply current
Control input high voltage
Control input low voltage
Output high voltage
IEE
VINH
4
VINL
VOH
2.4
7
mA
V
2
V
V
Note 4
Note 4
Note 4
Note 4
Pins 2, 7 and 8 linked
Vcc = 4.95V IOH = 100µA
Output low voltage
VOL
0.5
V
Note 4
Pin 2 linked to 8 and 7
IOL = 1.6mA
Set up time
ts
Release time
tr
Clock to output propagation time tp
14
ns
20
ns
45
ns
Note 3
Note 3
Note 3
25°C
25°C
25°C
NOTES
1. Unless otherwise stated the electrical characteristics are guaranteed over full specified supply, frequency and temperature range.
2. The test configuration for dynamic testing is shown in Fig.6.
3. Guaranteed but not tested.
4. Tested onlt at 25°C
TRUTH TABLE FOR CONTROL INPUTS
Control
input
0
1
Division Ratio
33
32
Figure 3 : Timing diagramSP8785
NOTES
The set-up time ts is defined as the minimum time that can elapse between a L ¡ H transition of the control input and the next L ¡ H clock
pulse transition to ensure that the ÷ 32 mode is selected.
The release time tr is defined as the minimum time that can elapse between a H ¡ L transition of the control input and the next L ¡ H clock
pulse transition to ensure that the ÷ 33 mode is selected.
1600
1400
1200 Vcc 4.95V to 5.45V PINS 7 AND 8 CONNECTED
TOGETHER. Tamb -40°C to +85°C
1000
800
600
GUARANTEED *
OPERATING
400
WINDOW
200
*Tested as specified
in table of
Electrical Characteristics
0
50
100
200
300
INPUT FREQUENCY (MHz)
Figure 4 : Input sensitivity SP8785
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