參數(shù)資料
型號: MC2800
廠商: Motorola, Inc.
英文描述: FSK FM IF Receiver(FSK FM IF 接收器)
中文描述: FSK信號調(diào)頻(FSK信號調(diào)頻中頻接收器中頻接收機)
文件頁數(shù): 15/28頁
文件大?。?/td> 473K
代理商: MC2800
MC2800
15
MOTOROLA RF/IF DEVICE DATA
24
23
22
21
20
19
18
17
1
2
3
4
5
6
7
8
C9
2.2 n
25
26
27
28
29
30
31
32
16
15
14
13
12
11
10
9
RF
Pwr
Mix
In
Mix
Gnd
Mix
Out
VCCIF1
In
Gnd IF1
Out
Vref 0.9 V
IF2 In
EN CL R1
R2
BRF
Out
BRF
2
BRF
1
Det
Out
Osc E (Osc Emitter)
Osc B (Osc Base)
Vreg 1.0 V
BD Out
D1
D2
VPk P
VPk N
RSSI (RSSI O/P)
Bias Ref
VDD
Lim Op (Limiter O/P)
PH Cont
Gnd
IF In
17.9 MHz
C11
0.1
μ
C20
4.7
μ
VDD
Y1
17.445 MHz
R3
100 k
C18
6–45 p
1
3
5
7
9
11
13
15
17
19
21
23
25
2
4
6
8
10
12
14
16
18
20
22
24
26
J1
Interface
D1
CL
R2
VDD
Gnd
D2
EN
R1
VCC
C8
3.3 n
C14
4.7
μ
C16
10–90 p
C1
0.1
μ
C3
1.0
μ
L1
2.7
μ
H
C17
4.7
μ
C2
1.0
μ
VCC
U5
cfu 455d
Gnd
1
In
Out
U4
cfu 455d
Gnd
1
2
3
C50
C6
VDD
RSSI
C7
1000 p
R8
7.1 k
MC2800
C4
D2
R49
10 M
C12
100 n
R50
10 M
VCC
EN
CL
C15
4.7
μ
C21
0.1
μ
C19
1.0
μ
R2
R1
C10
22 n
4.7
μ
0.1
μ
In
Out
2
3
47 p
R2
100 k
R1
100 k
VDD
100 n
C13
Variable capacitors
C16
C18
10 to 90 pF
6.0 to 45 pF
Crystal (17.445 MHz)
Y1
1U0174450B2035BOX
Figure 5. Schematics of MC2800 Demo Board (Two 455 kHz Ceramic Filters)
D1
Capacitors
C1,C6,C11,C12,C13,C21 0.1
μ
F
C2,C3,C19
C4
C7
C8
C9
C10
C14,C15,C17,C20,C50
1.0
μ
F
47 pF
1.0 nF
3.3 nF
2.2 nF
22 nF
4.7
μ
F
Inductor
L1
Resistors
R1,R2,R3
R8
R49,R50
2.7
μ
H
Ceramic filters (455 kHz)
U4,U5
CFU455D
100 k
7.1 k
10 M
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