SKY73001: 2 – 3500 MHz Direct Conversion Mixer

DATA SHEET
SKY73001: 2 – 3500 MHz Direct Conversion Mixer
Applications
Description
• PCS, DCS, and GSM/GPRS, and EDGE base station receivers
Skyworks SKY73001 direct conversion mixer is an integrated,
high-dynamic range, zero Intermediate Frequency (IF)
architecture down-converter for use in wireless communication
applications. High second and third order input intercept points
(IIP2 and IIP3, respectively) allow seamless integration into high
performance systems. The SKY73001 has a wide RF and Local
Oscillator (LO) frequency range of 2 to 3500 MHz.
• CDMA and W-CDMA receivers
• Third Generation (3G) wireless communications
• Mobile base stations
• Wireless Local Loops
• Wireless Local Area Networks
Figure 1 shows a functional block diagram for the SKY73001. The
device package and pinout for the 32-pin RF Land Grid Array
(RFLGA) are shown in Figure 2.
• Direct conversion receivers
Features
• High IIP2 and IIP3
Skyworks offers lead (Pb)-free, RoHS (Restriction of
Hazardous Substances) compliant packaging.
• Wideband RF and LO input frequency range (2 to 3500 MHz)
• Single +3.0 V supply
• Operating temperature range –40 °C to +85 °C
• Zero IF architecture eliminates need for image rejection filter
• Differential IF output supports direct interface to A/D circuitry
• AM demodulation immunity
• Low power consumption
LOI+
GND
RFP
GND
RFN
GND
GND
32
31
30
29
28
27
26
1
25
GND
GND
2
24
IFIP
GND
3
23
GND
VCC
4
22
IFIN
VCC
5
21
GND
VCC
6
20
IFQP
GND
7
19
GND
GND
8
18
IFQN
GND
9
17
GND
GND
LOI–
GND
• RFLGA™ (32 pin, 5 x 5 mm) Pb-free package (MSL3, 260 °C
per JEDEC J-STD-020)
IFI+
IFI–
RF+
RF–
IFQ+
Figure 1. SKY73001 Functional Block Diagram
13
14
15
16
GND
LOQP
GND
LOQN
C1267
12
LOIP
LOQ–
11
GND
LOQ+
10
LOIN
IFQ–
C1266
Figure 2. SKY73001 Pinout– 32-Pin RFLGA Package
(Top View)
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DATA SHEET • SKY73001 DIRECT CONVERSION MIXER
Electrical and Mechanical Specifications
The typical performance of the SKY73001 with respect to varying
conditions are illustrated in Figures 3 through 7. Figure 12
provides the package dimensions for the 32-pin RFLGA, and
Figure 13 provides the tape and reel dimensions.
Signal pin assignments and functional pin descriptions are
provided in Table 1. The absolute maximum ratings of the
SKY73001 are provided in Table 2 and the recommended
operating conditions provided in Table 3. Electrical characteristics
of the SKY73001 are provided in Table 4.
Table 1. SKY73001 Signal Descriptions
Pin #
1
Name
GND
Description
Pin #
Ground
17
Name
GND
Description
Ground
2
GND
Ground
18
IFQN
Negative quadrature IF output
3
GND
Ground
19
GND
Ground
4
VCC
+3 VDC supply
20
IFQP
Positive quadrature IF output
5
VCC
+3 VDC supply
21
GND
Ground
6
VCC
+3 VDC supply
22
IFIN
Negative in-phase IF output
7
GND
Ground
23
GND
Ground
8
GND
Ground
24
IFIP
Positive in-phase IF output
9
GND
Ground
25
GND
Ground
10
LOIN
Negative LO input
26
GND
Ground
11
GND
Ground
27
GND
Ground
12
LOIP
Positive LO input
28
RFN
Negative RF input
13
GND
Ground
29
GND
Ground
14
LOQP
Positive quadrature LO input
30
RFP
Positive RF input
15
GND
Ground
31
GND
Ground
16
LOQN
Negative quadrature LO input
32
GND
Ground
Table 2. SKY73001 Absolute Maximum Ratings
(TA = +25 °C, unless otherwise noted)
Parameter
Symbol
+3 V supply voltage
VCC
Power dissipation
PD
RF input power
PRFIN
Min
Max
3.6
V
140
230
mW
20
dBm
2.7
LO input power
PLOIN
Thermal resistance
θjc
Operating case temperature
TOPR
–40
Storage case temperature
TSTG
–40
Note:
Typical
6
36
0
Units
dBm
°C/W
+85
°C
+125
°C
Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other
parameters set at or below their nominal values.
Table 3. SKY73001 Recommended Operating Conditions
Parameter
Symbol
Min
Typical
Max
Units
3.0
3.3
V
+85
°C
+3 V supply voltage
VCC
2.7
Operating case temperature
TOPR
–40
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DATA SHEET • SKY73001 DIRECT CONVERSION MIXER
Table 4. SKY73001 Electrical Characteristics
(IF = 10 MHz, LO Input Power = 0 dBm, TC = 25 °C, unless otherwise noted)
Parameter
Symbol
Test Conditions
Min
Typical
Max
Units
RF input frequency range
2
3500
MHz
LO input frequency range
2
3500
MHz
DC
100
MHz
IF frequency range
I/Q amplitude imbalance
–0.3
I/Q phase error
+0.3
1
dB
deg
Image rejection (Note 1)
dB
IF output impedance
500
Ω
–3.5
dB
RF Input (900 MHz)
Voltage conversion gain
–4.8
SSB Noise Figure
14.7
IIP2
IIP3
25
–1 dB compression point
13
16.2
dB
67
dBm
27
dBm
15
dBm
RF input impedance
1.5:1
2.0:1
VSWR
LO input impedance
1.5:1
2.0:1
VSWR
18.5
dB
RF Input (1900 MHz)
Voltage conversion gain
–5.7
–4.4
dB
SSB Noise Figure
17
IIP2
70
dBm
23
25
dBm
12.5
14.5
dBm
IIP3
–1 dB compression point
RF input impedance
1.5:1
2.0:1
VSWR
LO input impedance
1.5:1
2.0:1
VSWR
Note 1: Image rejection is determined using the following equation:
IR = 10 log
⎛ 1 + A2
⎜
⎜ 1 + A2
⎝
[ ] ⎞⎟
where
⎟
− 2 A[cos θ ] ⎠
+ 2 A cos θ
A = 10
⎛ amplitude error ⎞
⎟
− ⎜⎜
⎟
20
⎝
⎠
in dB.
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3
+2
18
+1
17
Compression Point (dBm)
Conversion Gain (dB)
DATA SHEET • SKY73001 DIRECT CONVERSION MIXER
0
–1
–2
–3
–4
–5
IF = 10 MHz
16
15
14
13
12
11
–6
IF = 10 MHz
10
0
500
1000
1500
2000
2500
0
500
1000
Frequency (MHz)
1500
2000
2500
Frequency (MHz)
Figure 3. Voltage Conversion Gain vs Frequency
Figure 4. 1 dB Compression Point vs Frequency
36
80
34
75
70
30
IIP2 (dBm)
IIP3 (dBm)
32
28
26
65
60
24
22
55
IF = 10 MHz
20
IF = 10 MHz
50
0
500
1000
1500
2000
2500
0
500
1000
Frequency (MHz)
1500
2000
Frequency (MHz)
Figure 5. IIP3 vs Frequency (100 kHz Tone Spacing)
Figure 6. IIP2 vs Frequency
20
19
18
NF (dB)
17
16
15
14
13
12
IF = 10 MHz
11
10
0
500
1000
1500
2000
2500
Frequency (MHz)
Figure 7. Noise Figure vs Frequency
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2500
DATA SHEET • SKY73001 DIRECT CONVERSION MIXER
Evaluation Board Description
The SKY73001 Evaluation Board is used to test the performance
of the SKY73001 direct conversion mixer. An Evaluation Board
schematic diagram (500-2500 MHz) is shown in Figure 8.
Evaluation Board assembly diagrams are shown in Figure 9
(2-2500 MHz) and Figure 10 (3200-3500 MHz). Bills of Material
(BOMs) are provided in Table 5 (2-500 MHz and 500-2500 MHz)
and Table 6 (3200-3500 MHz).
2. Connect a signal generator to the RF signal input port. Set it to
the desired RF frequency at a power level of 0 dBm to the
Evaluation Board but do NOT enable the RF signal.
3. Connect a signal generator to the LOQ signal input port. Set to
the desired LO frequency at a power level of 0 dBm, but do
not enable.
4. Connect a spectrum analyzer to the IFQ signal output port and
terminate the IFI signal input port in 50 Ω.
Circuit Design Configurations
5. Enable the power supply.
The following design considerations are general in nature and
must be followed regardless of final use or configuration.
6. Enable the LO input signal.
1. Paths to ground should be made as short as possible.
8. Take measurements and repeat these steps for channel I.
2. The ground pad of the SKY73001 direct conversion mixer has
special electrical and thermal grounding requirements. This
pad is the main thermal conduit for heat dissipation. Since the
circuit board acts as the heat sink, it must shunt as much
heat as possible from the mixer. As such, design the
connection to the ground pad to dissipate the maximum
wattage produced to the circuit board. Multiple vias to the
grounding layer are required.
3. Two external output bypass capacitors are required on the
VCC pins. The values of these capacitors will change with
respect to the desired RF frequency. One capacitor should be
used for low frequency bypassing and the other capacitor for
high frequency bypassing. Special attention should be given
so that the smaller value capacitor does not go into selfresonance at the desired RF frequency.
4. Wire wound balanced transformers (baluns) were used during
the test and characterization of the SKY73001. Ceramic
baluns can be used to create the differential input signals (i.e.,
RF and LO). However, their performance will limit the overall
system performance of the SKY73001.
Testing Procedure
7. Enable the RF signal.
CAUTION: If any of the input signals exceed the rated maximum
values, the SKY73001 Evaluation Board can be
permanently damaged.
Package and Handling Information
Since the device package is sensitive to moisture absorption, it is
baked and vacuum packed before shipping. Instructions on the
shipping container label regarding exposure to moisture after the
container seal is broken must be followed. Otherwise, problems
related to moisture absorption may occur when the part is
subjected to high temperature during solder assembly.
The SKY73001 is rated to Moisture Sensitivity Level 3 (MSL3) at
260 °C. It can be used for lead or lead-free soldering. For
additional information, refer to the Skyworks Application Note,
PCB Design & SMT Assembly/Rework Guidelines for RFLGA
Packages, document number 103147.
Care must be taken when attaching this product, whether it is
done manually or in a production solder reflow environment.
Production quantities of this product are shipped in a standard
tape and reel format. For packaging details, refer to the Skyworks
Application Note, Tape and Reel, document number 101568.
Use the following procedure to set up the SKY73001 Evaluation
Board for testing. Refer to Figure 11 for guidance:
1. Connect a +3.0 VDC power supply using an insulated supply
cable. If available, enable the current limiting function of the
power supply to 100 mA.
Electrostatic Discharge (ESD) Sensitivity
The SKY73001 is a static-sensitive electronic device. Do not
operate or store near strong electrostatic fields. Take proper ESD
precautions.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
101907E • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • March 15, 2006
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DATA SHEET • SKY73001 DIRECT CONVERSION MIXER
SMA
RF
6
1
4
J2
T1
TCM4-25
1
2
3
2
1
J1
2-Pin Header
C1
33 pF
2
3
4
5
6
7
26
GND
27
GND
28
RFN
29
GND
30
GND
GND
GND
GND
IFIP
GND
GND
VCC
IFIN
VCC
GND
U1
SKY73001
VCC
IFQP
25
24
3
23
2
22
1
20
3
19
2
1
IFQN
18
9
GND
GND
17
12
1
2
3
13
GND
GND
GND
11
LOQN
GND
LOQP
8
LOIP
GND
10
14
15
16
1
2
3
T5
TCM4-25
SMA
T2
TCM9-1
I_IF
1
Q_IF
1
J3
4
21
GND
LOIN
C2
1000 pF
GND
1
31
RFP
32
SMA
T3
TCM9-1
4
T4
TCM4-25
4
6
4
I_LO
6
Q_LO
SMA
1
SMA
J6
J5
1
C1318
Figure 8. SKY73001 Evaluation Board Schematic
(500-2500 MHz)
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J4
DATA SHEET • SKY73001 DIRECT CONVERSION MIXER
J2
T1
T2
J1
C1
J3
C2
U1
T3
T5
J6
J4
T4
J5
Component Placement
Top Layer
Bottom Layer
S758
Figure 9. SKY73001 Evaluation Board Assembly Diagram
(2-2500 MHz)
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DATA SHEET • SKY73001 DIRECT CONVERSION MIXER
Table 5. SKY73001 Evaluation Board Component Values (2-2500 MHz)
Reference Designator
Quantity
Value
Manufacturer
Part Number
2-500 MHz
C1
1
33 pF (0603)
C2
1
1000 pF (0603)
J1
1
2-pin header connector
J2, J3, J4, J5, J6
5
SMA connector
T1, T4, T5
3
4:1 (3-800 MHz)
Mini-Circuits
TC4-1W
T2, T3
2
9:1 (2-280 MHz)
Mini-Circuits
TCM9-1
U1
1
Direct Conversion Mixer
Skyworks
SKY73001-11
TCM4-25
500-2500 MHz
C1
1
33 pF (0603)
C2
1
1000 pF (0603)
J1
1
2-pin header connector
J2, J3, J4, J5, J6
5
SMA connector
T1, T4, T5
3
4:1 (500-2500 MHz)
Mini-Circuits
T2, T3
2
9:1 (2-280 MHz)
Mini-Circuits
TCM9-1
U1
1
Direct Conversion Mixer
Skyworks
SKY73001-11
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DATA SHEET • SKY73001 DIRECT CONVERSION MIXER
J2
T1
T2
J1
C1
J3
C2
U1
T5
J6
T4
T3
J4
J5
Component Placement
Top Layer
Bottom Layer
S759
Figure 10. SKY73001 Evaluation Board Assembly Diagram
(3200-3500 MHz)
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DATA SHEET • SKY73001 DIRECT CONVERSION MIXER
Table 6. SKY73001 Evaluation Board Component Values (3200-3500 MHz)
Reference Designator
C1
Quantity
Value
1
Manufacturer
Part Number
33 pF (0603)
C2
1
1000 pF (0603)
J1
1
2-pin header connector
J2, J3, J4, J5, J6
5
SMA connector
T1, T4, T5
3
4:1 (3200-3500 MHz)
Johanson
3700BL15B100
T2, T3
2
9:1 (2-280 MHz)
Mini-Circuits
TCM9-1
U1
1
Direct Conversion Mixer
Skyworks
SKY73001-11
Signal
Generator
RF
Power
Supply
Spectrum
Analyzer
IFQ
50 Ω
VCC
SKY73001
Evaluation Board
LOI
Signal
Generator
IFI
GND
LOQ
50 Ω
C1319
Figure 11. SKY73001 Evaluation Board Testing Configuration
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DATA SHEET • SKY73001 DIRECT CONVERSION MIXER
5.04 ± 0.05
Pin #1
Solder Mask
∅0.300
∅0.150 Pin #1 Mark
5.04 ± 0.05
0.500
Downset Paddle
Detail A
0.500
Top View
∅2.000
Bottom View
Solder Mask
Exposed Metal
1.00 ± 0.10
0.38 ± 0.05
(32x)
0.050 Ref.
0.300 ± 0.02
(32x)
Side View
Package Edge
0.400 ± 0.05
(32x)
Detail A
All measurements are in millimeters
C1285a
Figure 12. SKY73001 32-Pin RFLGA Package Dimensions
8.00 ± 0.02
∅1.55 ± 0.05
4.00 ± 0.02
2.00 ± 0.05
0.30 ± 0.05
B
1.75 ± 0.10
5.35
A
5o Max.
12.00 ± 0.30
A
5.50 ± 0.05
Pin #1
Indicator
B
∅1.50 Min.
1.70
5.35
B
5o Max.
Notes:
1. Carrier tape: black conductive polystyrene
2. Cover tape material: transparent conductive PSA
3. Cover tape size: 9.3 mm width
4. All dimensions are in millimeters
A
S461
Figure 13. SKY73001 32-Pin RFLGA Tape and Reel Dimensions
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DATA SHEET • SKY73001 DIRECT CONVERSION MIXER
Ordering Information
Model Name
SKY73001 2-3500 MHz Direct Conversion Mixer
Manufacturing Part Number
SKY73001-11 (Pb-free package)
Evaluation Kit Part Number
TW10-D913 (tuned for 2-500 MHz)
TW10-D912 (tuned for 500-2500 MHz)
TW12-D342 (tuned for 3200-3500 MHz)
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information contained herein. Skyworks may change its documentation, products, services, specifications or product descriptions at any time, without notice. Skyworks makes no commitment to
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