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参数资料
| 型号： | WL800 |
| 厂商： | Mitel Networks Corporation |
| 英文描述： | 2.5GHz Frequency Synthesiser |
| 中文描述： | 2.5GHz的频率合成器 |
| 文件页数： | 6/11页 |
| 文件大小： | 150K |
| 代理商： | WL800 |
4
WL800
ELECTRICAL CHARACTERISTICS
These characteristics are guaranteed over the following conditions (unless otherwise stated):
T
AMB = -20°C, to +85°C, Vcc
= 2.7V to 3.6V
Characteristic
Value
Unit
Condition
MIN
TYP
MAX
Supply current (total)
Transmit
37
50
mA
Receive
35
50
mA
Supply current in standby
3
5
mA
PROGRAMMING INPUTS
Logic low voltage
0
0.4
V
Logic high voltage
0.8Vcc
Vcc
V
Input current
1
A
Input level high
Data clock frequency (1/tclock)
20
MHz
See Fig. 2
Data/Enable set up time (t set up)
10
ns
See Fig. 2
Enable hold time (t enable)
10
ns
See Fig. 2
Positive clock pulse width (tp)
20
ns
See Fig. 2
Negative clock pulse width (t neg)
20
ns
See Fig. 2
STANDBY INPUT
Logic low input voltage
0
0.8
V
Circuit powered down
Logic high input voltage
Vcc -0.7
Vcc
V
Circuit powered up
Input current
100
150
A
Circuit powered up
-150
A
Circuit powered down
Standby to operate time
3
s
*References operational (see note 1)
TX/RX INPUT
Logic low input voltage
0
0.8
V
Receive mode
Logic high input voltage
Vcc -0.7
Vcc
V
Transmit mode
Input current
10
A
REFERENCE OUTPUT
Reference output frequency
20
MHz
With 20MHz crystal
Reference clock output voltage
200
250
300
mVp-p
With 15pF load
Reference output impedance
600
Ohms
Mark Space ratio
-2%
50/50
+2%
With 15pF load
Rise time
15
ns
Fall time
15
ns
Crystal Drive Levels required
200
mV
Pins 22,23 differential
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