Si413 3
Si4 123 /2 2/13 /1 2
D
U A L
-B
A N D
R F S
Y N T H E S I Z E R
W
I T H
I
N T E G R A T E D
V C O
S
F
O R
W
IRELESS
C
OM MUNICATIONS
Features
!
"
"
RF1: 900 MHz to 1.8 GHz
RF2: 750 MHz to 1.5 GHz
IF: 62.5 MHz to 1000 MHz
!
!
!
!
!
!
!
IF Synthesizer
"
Integrated VCOs, Loop Filters,
!
Varactors, and Resonators
Minimal (2) External
Components Required
S
Dual-Band RF Synthesizers
!
Low Phase Noise
Programmable Power Down Modes
1 µA Standby Current
18 mA Typical Supply Current
2.7 V to 3.6 V Operation
Packages: 24-Pin TSSOP, 28-Lead
MLP
i4
13
Ordering Information:
See page 31.
Applications
!
!
Dual-Band Communications
Digital Cellular Telephones
GSM, DCS1800, PCS1900
!
!
!
Digital Cordless Phones
Analog Cordless Phones
Wireless LAN and WAN
3-
Pin Assignments
B
T
Si4133-BT
SCLK
SDA TA
GNDR
RFLD
RFLC
GNDR
RFLB
RFLA
GNDR
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
SENB
V DDI
IFOUT
GNDI
IFLB
IFLA
GNDD
V DDD
GNDD
XIN
PWDNB
A UXOUT
Description
The Si4133 is a monolithic integrated circuit that performs both IF and dual-
band RF synthesis for wireless communications applications. The Si4133
includes three VCOs, loop filters, reference and VCO dividers, and phase
detectors. Divider and power-down settings are programmable through a
three-wire serial interface.
Functional Block Diagram
GNDR
RFOUT
V DDR
X IN
R eference
A m plifier
P ow er
D ow n
C ontrol
÷
R
P hase
D etector
R F1
R FLA
R FLB
PW DNB
÷
N
÷
R
R FO UT
GNDR
Si4133-BM
SDA TA
SCLK
SENB
IFOUT
GNDI
V DDI
S D AT A
S C LK
S E NB
S erial
Interface
22-bit
D ata
R egister
P hase
D etector
R F2
R FLC
R FLD
GNDR
28
1
2
3
4
5
6
7
8
GNDR
27
26
25
24
23
22
21
20
19
18
17
16
15
GNDI
IFLB
IFLA
GNDD
V DDD
GNDD
XIN
÷
N
RFLD
A U XO U T
Test
Mux
÷
R
P hase
D etector
IF
RFLC
IFD IV
IFO U T
GNDR
RFLB
RFLA
GNDR
÷
N
IFLA
IFLB
9
GNDR
10
RFOUT
11
V DDR
12
A UXOUT
13
PWDNB
14
GNDD
Patents pending
Rev. 1.1 3/01
Copyright © 2001 by Silicon Laboratories
Si4133-DS11
This information applies to a product under development. Its characteristics and specifications are subject to change without notice.
Si4133
T
A B L E O F
C
O N T E N T S
Section
Page
4
16
16
16
17
17
18
18
19
19
19
20
21
27
29
31
31
32
33
34
Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the VCO Center Frequencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Extended Frequency Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Self-Tuning Algorithm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Frequencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PLL Loop Dynamics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF and IF Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reference Frequency Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Down Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Auxiliary Output (AUXOUT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin Descriptions: Si4133-BT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin Descriptions: Si4133-BM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ordering Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Si4133 Derivative Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package Outline: Si4133-BT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package Outline: Si4133-BM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rev. 1.1
3
S i4 13 3
Electrical Specifications
Table 1. Recommended Operating Conditions
Parameter
Ambient Temperature
Supply Voltage
Supply Voltages Difference
Symbol
T
A
V
DD
V
∆
(V
DDR
– V
DDD
),
(V
DDI
– V
DDD
)
Test Condition
Min
–40
2.7
–0.3
Typ
25
3.0
—
Max
85
3.6
0.3
Unit
°C
V
V
Note:
All minimum and maximum specifications are guaranteed and apply across the recommended operating conditions.
Typical values apply at nominal supply voltages and an operating temperature of 25°C unless otherwise stated.
Table 2. Absolute Maximum Ratings
1,2
Parameter
DC Supply Voltage
Input Current
3
Input Voltage
3
Storage Temperature Range
Symbol
V
DD
I
IN
V
IN
T
STG
Value
–0.5 to 4.0
±10
–0.3 to V
DD
+0.3
–55 to 150
Unit
V
mA
V
o
C
Notes:
1.
Permanent device damage may occur if the above Absolute Maximum Ratings are exceeded. Functional operation
should be restricted to the conditions as specified in the operational sections of this data sheet. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
2. This device is a high performance RF integrated circuit with an ESD rating of < 2 kV. Handling and assembly of
this device should only be done at ESD-protected workstations.
3.
For signals SCLK, SDATA, SENB, PWDNB and XIN.
4
Rev. 1.1
Si4133
Table 3. DC Characteristics
(V
DD
= 2.7 to 3.6 V, T
A
= –40 to 85°C)
Parameter
Total Supply Current
1
RF1 Mode Supply Current
1
RF2 Mode Supply Current
1
IF Mode Supply Current
1
Standby Current
High Level Input Voltage
2
Low Level Input Voltage
2
High Level Input Current
2
Low Level Input Current
2
High Level Output Voltage
3
Low Level Output Voltage
3
V
IH
V
IL
I
IH
I
IL
V
OH
V
OL
V
IH
=
3.6 V,
V
DD
= 3.6 V
V
IL
=
0 V,
V
DD
=
3.6 V
I
OH
= –500 µA
I
OH
= 500 µA
PWDNB = 0
Symbol
Test Condition
RF1 and IF operating
Min
—
—
—
—
—
0.7 V
DD
—
–10
–10
V
DD
–0.4
—
Typ
18
10
9
8
1
—
—
—
—
—
—
Max
27
16
16
13
—
—
0.3 V
DD
10
10
—
0.4
Unit
mA
mA
mA
mA
µA
V
V
µA
µA
V
V
Notes:
1.
RF1 = 1.6 GHz, RF2 = 1.1 GHz, IFOUT = 550 MHz, LPWR = 0
2.
For signals SCLK, SDATA, SENB, and PWDNB.
3.
For signal AUXOUT.
Rev. 1.1
5
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