參數(shù)資料
型號(hào): SP5055S
廠商: Mitel Networks Corporation
英文描述: ()
中文描述: ()
文件頁數(shù): 3/10頁
文件大小: 99K
代理商: SP5055S
AN168
3
1
16
2
15
3
14
4
13
5
12
6
11
7
10
8
9
XTAL Q1
XTAL Q2
SDA
SCL
P7
P6
P5
330
330
100p
100p
4MHz
15p
CH PUMP
μ
P
Note 3
100p
P4
P3
P0
Note 7
100p
100p
Note 6
2N3906
100p
100n
22k
+12V
Vcc
Note 4
+5V
RF IN
1n
RF IN
1n
Vee
OUTPUT
39p
2N3904
10K
47K
10n
Note 2
C2=39n
22K
Note 1
Note 8
Note 5
+30V
R1=22K
VARACTOR
LINE
OSC OUT
BAND
INPUT
AFC O/P
C1=180n
1
M
1
P*N
I
2
C
INTER
FACE
SP5055S
TUNER
Fig.6 Typical I
2
C Synthesiser application
Note 1 :
Note 2 :
Note 3 :
Note 4 :
Note 5 :
Note 6 :
Note 7 :
Note 8 :
Varactor line filter reduces ripple.
39pF capacitor reduces radiation into NPN base.
IIC bus filtering reduces transients.
Decouple Vcc rail at both high and low frequencies.
Choose appropriate loop filter components
Decouple unused output ports
Ground unused input ports
When the varactor line disable (OS bit) is set, the 30V supply
can be varied to directly control the analog voltage to the
varactor.
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