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参数资料
| 型号： | 4022-DKDB13 |
| 厂商： | Silicon Laboratories Inc |
| 文件页数： | 5/20页 |
| 文件大小： | 726K |
| 描述： | KIT DEV TEST EZRADIO SI4022 TX |
| 标准包装： | 1 |
| 附件类型： | 测试卡，发射器，868MHz，915MHz |
| 适用于相关产品： | EZRadio? |
5
Si4022
Symbol
Parameter
Conditions/Notes
Min
Typ
Max
Units
f
LO
Transmitter frequency
868 MHz band, 20 kHz resolution
915 MHz band, 20 kHz resolution
801.92
881.92
878.06
958.06
MHz
f
ref
PLL reference frequency
(Note 1)
9
10
11
MHz
f
res
PLL frequency resolution
20
kHz
t
lock
PLL lock time
Frequency error < 1kHz
after 1 MHz step
30
約
t
sp
PLL startup time
Initial calibration after power-up
with running crystal oscillator
500
約
C
xl
Crystal load capacitance,
see crystal selection guide
Programmable in 0.5 pF steps,
tolerance +/- 10%
8.5
16
pF
t
POR
Internal POR pulse width
(Note 2)
After V
dd
has reached 90% of
final value
50
100
ms
t
sx
Crystal oscillator startup time
Crystal ESR < 100 ?
2
5
ms
t
PBt
Wake-up timer clock period
Calibrated every 40 seconds
(Note 3)
0.995
1
1.005
ms
t
wake-up
Programmable wake-up time
1
8.4*10
6
ms
DC Characteristics (continued)
AC Characteristics
Note 1:
Note 1:
Note 1:
Note 1:
Note 1: Using anything but a 10 MHz crystal is allowed but not recommended because all crystal-referred timing and frequency
parameters will change accordingly.
Note 2:
Note 2:
Note 2:
Note 2:
Note 2: No command are accepted by the chip during this period.
Note 3:
Note 3:
Note 3:
Note 3:
Note 3: Autocalibration can be turned off.
Symbol
Parameter
Conditions/Notes
Min
Typ
Max
Units
V
il
Digital input low level
0.3*V
dd
V
V
ih
Digital input high level
0.7*V
dd
V
Iil
Digital input current
Vil = 0 V
-1
1
礎
I
ih
Digital input current
V
ih
= V
dd
, V
dd
= 3.8 V
-1
1
礎
V
ol
Digital output low level
I
ol
= 2 mA
0.4
V
V
oh
Digital output high level
I
oh
= -2 mA
V
dd
-0.4
V
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