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PDF SI2200 Data sheet ( Hoja de datos )
| Número de pieza | SI2200 | |
| Descripción | RF SYNTHESIZER WITH INTEGRATED VCOS INTEGRATED VCOS | |
| Fabricantes | Silicon Laboratories | |
| Logotipo |  |
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Si2200
RF SYNTHESIZER WITH INTEGRATED VCOS
FOR SATELLITE RADIO
Features
! 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
Applications
! Satellite Radio
! 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
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
XIN
PWDN
SDATA
SCLK
SEN
AUXOUT
Reference
Amplifier
÷1/÷2
Power
Down
Control
Serial
Interface
22-bit
Data
Register
Test
Mux
÷RRF1
÷RRF2
÷RIF
Phase
Detect
Phase
Detect
Phase
Detect
÷NRF1
÷NRF2
÷NIF
RF1
÷2
RF2
÷2
IF
IFDIV
RFOUT
IFOUT
IFLA
IFLB
Ordering Information:
See page 28.
Pin Assignments
Si2200-GM
28 27 26 25 24 23 22
GND 1
21 GND
GND 2
20 IFLB
NC
GND
3
4
GND
19 IFLA
18 GND
NC 5
17 VDDD
GND 6
16 GND
GND 7
15 XIN
8 9 10 11 12 13 14
Patents pending
Rev. 1.0 5/05
Copyright © 2005 by Silicon Laboratories
Si2200
1 page  
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Si2200
Table 3. DC Characteristics
(VDD = 2.7 to 3.6 V, TA = –40 to 85 °C)
Parameter
Total Supply Current1
RF1 Mode Supply Current1
RF2 Mode Supply Current1
IF Mode Supply Current1
Symbol
Test Condition
RF1 and IF operating
Standby Current
PWDN = 0
High Level Input Voltage2
Low Level Input Voltage2
High Level Input Current2
Low Level Input Current2
High Level Output Voltage3
Low Level Output Voltage3
VIH
VIL
IIH VIH = 3.6 V,
VDD = 3.6 V
IIL VIL = 0 V,
VDD= 3.6 V
VOH IOH = –500 µA
VOL IOH = 500 µA
Notes:
1. RF1 = 2.4 GHz, RF2 = 2.1 GHz, IFOUT = 800 MHz, LPWR = 0.
2. For signals SCLK, SDATA, SEN, and PWDN.
3. For signal AUXOUT.
Min
—
—
—
—
—
0.7 VDD
—
–10
–10
VDD–0.4
—
Typ
28.7
19.5
18.5
10
1
—
—
—
—
—
—
Max
35
24
23
12
—
—
0.3 VDD
10
Unit
mA
mA
mA
mA
µA
V
V
µA
10 µA
—V
0.4 V
Rev. 1.0
5
5 Page 
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Si2200
Figure 6. Typical Transient Response RF1 at 2.4 GHz
with 1 MHz Phase Detector Update Frequency
Rev. 1.0
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet SI2200.PDF ] | |
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