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參數資料
| 型號： | Si2200 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | RF SYNTHESIZER WITH INTEGRATED VCOS FOR SATELLITE RADIO |
| 中文描述： | RF合成器，衛星廣播帶有集成的VCO |
| 文件頁數： | 1/30頁 |
| 文件大?。?/td> | 824K |
| 代理商： | SI2200 |
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Rev. 1.0 5/05
Copyright 2005 by Silicon Laboratories
Si2200
Si2200
RF S
YNTHESIZER
WITH
I
NTEGRATED
VCO
S
FOR
S
ATELLITE
R
ADIO
Features
Applications
Description
The Si2200 is a monolithic integrated circuit that performs both IF and RF
synthesis for wireless communications applications. The Si2200 includes
three VCOs, loop filters, reference and VCO dividers, and phase
detectors. Divider and powerdown settings are programmable through a
three-wire serial interface.
Functional Block Diagram
!
Dual-band RF synthesizers
"
RF1: 2300 to 2500 MHz
"
RF2: 2025 to 2300 MHz
IF synthesizer
"
62.5 to 1000 MHz
!
Integrated VCOs, loop filters,
varactors, and resonators
!
!
Minimal external components
required
Low phase noise
5 μA standby current
25.7 mA typical supply current
2.9 to 3.6 V operation
28-lead QFN
"
Lead-Free and RoHS Compliant
!
!
!
!
!
!
Satellite Radio
IFOUT
IFLA
IFLB
RFOUT
XIN
PWDN
SDATA
SCLK
SEN
IF
RF2
RF1
AUXOUT
Phase
Detect
Phase
Detect
÷
2
÷
2
IFDIV
Phase
Detect
Test
Mux
22-bit
Data
Register
Serial
Interface
Power
Down
Control
Reference
Amplifier
÷
R
RF1
÷
R
RF2
÷
R
IF
÷
N
RF1
÷
N
RF2
÷
N
IF
÷1/÷2
Patents pending
Ordering Information:
See page 28.
Pin Assignments
Si2200-GM
S
S
G
GND
NC
NC
GND
GND
R
V
S
V
I
GND
IFLB
IFLA
G
VDDD
GND
XIN
P
A
21
20
19
18
17
16
15
8
9
10
11
12
13
14
28 27
26
25
24
23
22
1
2
3
4
5
6
7
G
GND
GND
GND
G
G
GND
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