SKY73070 - Skyworks Solutions, Inc.

DATA SHEET
SKY73070: 700 – 1000 MHz High Gain and Linearity Single
Downconversion Mixer
Applications
Description
• 2G/3G base station transceivers:
− GSM/EDGE, CDMA, UMTS/WCDMA, iDEN
The SKY73070 is a fully integrated single mixer that includes a
Local Oscillator (LO) driver, high linearity mixer, and large
dynamic range Intermediate Frequency (IF) amplifier. A low loss
RF balun has also been included to reduce design complications
and lower system cost.
• Small, MCM (20-pin, 5 x 5 mm) Pb-free package (MSL3, 260 °C
per JEDEC J-STD-020)
Skyworks offers lead (Pb)-free RoHS (Restriction of
Hazardous Substances) compliant packaging.
VCC_IFRF
• Operating frequency range: 700 to 1000 MHz
• IF frequency range: 40 to 300 MHz
• Conversion gain: 9.5 dB
• Input IP3: +27.0 dBm
• Output IP3: +36.5 dBm
• Noise figure: 8.3 dB
• Integrated LO driver
• Integrated low loss RF balun
• High linearity IF amplifier
The SKY73070 is manufactured using a robust silicon BiCMOS
process and has been designed for optimum long-term reliability.
The SKY73070 single downconversion mixer is provided in a
compact, 20-pin 5 x 5 mm Multi-Chip Module (MCM). A functional
block diagram is shown in Figure 1. The pin configuration and
package are shown in Figure 2. Signal pin assignments and
functional pin descriptions are provided in Table 1.
IFA+
IFA–
Features
The SKY73070 features an input IP3 of +27.0 dBm and a Noise
Figure (NF) of 8.3 dB, making the device an ideal solution for high
dynamic range systems such as 2G/3G base station transceivers.
RXIF
• Land mobile radio
• ISM band transceivers
• High performance radio links
• RF identification
RF
LO
VCC1_LO
S1080
Figure 1. SKY73070 Block Diagram
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
200716F • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • January 21, 2008
1
RXIF
IF+
IF–
GND
N/C
DATA SHEET • SKY73070 DOWNCONVERSION MIXER
20
19
18
17
16
2
14
GND
N/C
3
13
GND
GND
4
12
N/C
GND
5
11
LO
6
7
8
9
10
GND
RF
N/C
N/C
VCC2_LO
15
N/C
1
VCC1_LO
VCC_IFRF
S1081
Figure 2. SKY73070 Pinout – 20-Pin MCM
Table 1. SKY73070 Signal Descriptions
Pin #
Name
Description
Pin #
Name
Description
1
VCC_IFRF
IF and RF DC supply, +5V
11
LO
LO input
2
RF
RF input
12
N/C
No connection
3
N/C
No connection
13
GND
Ground
4
GND
Ground
14
GND
Ground
5
GND
Ground
15
N/C
No connection
6
VCC1_LO
DC supply for LO driver, +5V
16
N/C
No connection
7
N/C
No connection
17
GND
Ground
8
VCC2_LO
DC supply for LO buffer, +5V
18
IF–
Negative IF output
9
N/C
No connection
19
IF+
Positive IF output
10
GND
Ground
20
RXIF
IF bias adjust
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DATA SHEET • SKY73070 DOWNCONVERSION MIXER
Functional Description
The SKY73070 is a high gain single mixer, optimized for base
station receiver applications. The device consists of a low loss RF
balun, high linearity passive mixer, and a low noise IF amplifier.
injection. However, the LO can be driven over a wide frequency
range with only slight degradation in performance.
IF Amplifier
An LO amplifier is also included that allow the SKY73070 to
connect directly to the output of a Voltage Controlled Oscillator
(VCO). This eliminates the extra gain stages needed by most
discrete passive mixers.
The SKY73070 includes a high dynamic range IF amplifier that
follows the passive mixer in the signal path. The outputs require a
supply voltage connection using inductive chokes. These choke
inductors should be high-Q and have the ability to handle 200 mA
or greater.
RF Balun and Passive Mixer
A simple matching network allows the output ports to be matched
to a balanced 200 Ω impedance. The IF amplifier is optimized for
IF frequencies between 40 and 300 MHz. The IF amplifier can be
operated outside of this range, but with a slight degradation in
performance.
The RF balun provides a single ended input, which can easily be
matched to 50 Ω using a simple external matching circuit. The RF
balun offers very low loss, and excellent amplitude and phase
balance.
The high linearity SKY73070 is a passive, double balanced mixer
that provides a very low conversion loss, and excellent 3rd Order
Input Insertion Point (IIP3).
Additionally, the balanced nature of the mixer provides for high
port-to-port isolation.
LO Buffer
An LO buffer allows the input power of the SKY73070 to be in the
range of ±6 dBm. The LO section is optimized for high-side LO
Electrical and Mechanical Specifications
The absolute maximum ratings of the SKY73070 are provided in
Table 2 and the recommended operating conditions in Table 3.
Electrical characteristics for the SKY73070 are provided in
Table 4.
Typical performance characteristics for the SKY73070 are
illustrated in Figures 3 through 18.
Table 2. SKY73070 Absolute Maximum Ratings (Note 1)
Parameter
Symbol
Minimum
Maximum
Units
4.5
5.5
V
Supply voltage, +5 V
VCC
Supply current
ICC
240
mA
RF input power
PRF
+20.0
dBm
LO input power
PLO
+20.0
dBm
Operating case temperature
TC
+85
°C
Junction temperature (Note 2)
TJ
+150
°C
Storage case temperature
TSTG
+125
°C
–40
–40
Note 1: 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 value.
Note 2: Nominal thermal resistance (junction to center ground pad) is 5.1 °C/W.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
200716F • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • January 21, 2008
3
DATA SHEET • SKY73070 DOWNCONVERSION MIXER
Table 3. SKY73070 Recommended Operating Conditions
Parameter
Symbol
Minimum
Typical
Maximum
Units
4.75
5.00
5.25
V
+6.0
dBm
Supply voltage, +5 V
VCC
Supply current
ICC
LO input power
PLO
–6.0
Operating case temperature
TC
–40
+85
°C
RF frequency range
fRF
700
1000
MHz
LO frequency range (Note 1)
FLO
900
1250
MHz
IF frequency range
FIF
40
300
MHz
210
mA
0
Note 1: The SKY73070 has been optimized for high-side LO injection. However, the LO can be used outside of the specified frequency range with degraded performance.
Table 4. SKY73070 Electrical Specifications
(VCC = +5 V, TA = +25 °C, LO = 0 dBm, RF Frequency = 900 MHz, IF Frequency = 200 MHz, LO Frequency = 1100 MHz, Unless Otherwise
Noted)
Parameter
Conversion gain
Symbol
G
Gain variation over temperature
Noise Figure
NF
Noise Figure variation over temperature
Test Condition
Min
Typical
8.2
9.5
dB
TA = –40 to +85 °C
±0.6
dB
TA = 25 °C, PLO = –3 to
+3 dBm, VCC = 4.75 to
5.25 V, IF = 200 MHz
8.3
dB
TA = –40 to +85 °C
±0.8
dB
18
dB
+27.0
dBm
TA = –40 to +85 °C
±0.3
dB
dBm
fRF = 824 to 915 MHz,
TA = 25 °C, PLO = –3 to
+3 dBm
Noise Figure with a blocker signal
NFBLK
Blocking signal input
power = +8 dBm
Third order input intercept point
IIP3
fRF = 900 MHz and
900.8 MHz,
PRF = –10 dBm/tone,
VCC = 4.75 to 5.25 V
Input IP3 variation over temperature
+24.7
Max
Third order output intercept point
OIP3
fRF = 900 MHz and
900.8 MHz,
PRF = –10 dBm/tone,
VCC = 4.75 to 5.25 V
+36.5
2RF – 2LO
2x2
PRF = –10 dBm
–68.5
–63
3RF – 3LO
3x3
PRF = –10 dBm
–80
–70
Input 1 dB compression point
IP1dB
Output 1 dB compression point
OP1dB
+11.0
RF to IF isolation
30
LO leakage:
@ RF port
@ IF port
dBc
dBc
+13.3
dBm
+22.8
dBm
48
dB
–59
–34
–20
–23
dBm
dBm
RF port input return loss
ZIN_RF
With external matching
components
14
dB
LO port input return loss
ZIN_LO
With external matching
components
14
dB
IF port output return loss
ZOUT_IF
With external matching
components
14
dB
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Units
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DATA SHEET • SKY73070 DOWNCONVERSION MIXER
11.0
11.0
4.75 V
5.00 V
5.25 V
10.5
10.5
10.0
9.5
9.5
9.0
9.0
Gain (dB)
Gain (dB)
10.0
8.5
8.0
8.5
8.0
7.5
7.5
7.0
7.0
6.5
6.5
6.0
–40 oC
+25 oC
+85 oC
6.0
824
839
854
869
884
899
914
824
839
854
RF Frequency (MHz)
Figure 3. Gain vs Frequency and Supply Voltage
899
914
14
–3 dBm
0 dBm
+3 dBm
10.5
10.0
–40 oC
+25 oC
+85 oC
13
12
Noise Figure (dB)
9.5
Gain (dB)
884
Figure 4. Gain vs Frequency and Temperature
11.0
9.0
8.5
8.0
7.5
11
10
9
8
7
7.0
6
6.5
5
6.0
4
824
839
854
869
884
899
914
824
839
854
RF Frequency (MHz)
869
884
899
914
RF Frequency (MHz)
Figure 5. Gain vs Frequency and LO Power
Figure 6. Noise Figure vs Frequency and Temperature
14
14
4.75 V
5.00 V
5.25 V
13
12
–3 dBm
0 dBm
+3 dBm
13
12
11
Noise Figure (dB)
Noise Figure (dB)
869
RF Frequency (MHz)
10
9
8
7
11
10
9
8
7
6
6
5
5
4
4
824
839
854
869
884
899
RF Frequency (MHz)
Figure 7. Noise Figure vs Frequency and Supply Voltage
914
824
839
854
869
884
899
914
RF Frequency (MHz)
Figure 8. Noise Figure vs Frequency and LO Power
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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DATA SHEET • SKY73070 DOWNCONVERSION MIXER
30
30
–40 oC
+25 oC
+85 oC
29
4.75 V
5.00 V
5.25 V
29
28
27
27
26
26
IIP3 (dBm)
IIP3 (dBm)
28
25
24
25
24
23
23
22
22
21
21
20
20
824
839
854
869
884
899
914
824
839
854
RF Frequency (MHz)
Figure 9. IIP3 vs Frequency and Temperature
28
914
–40 oC
+25 oC
+85 oC
17
16
15
IP1dB (dBm)
27
26
25
24
14
13
12
23
11
22
10
21
9
20
8
824
839
854
869
884
899
914
824
839
854
RF Frequency (MHz)
869
884
899
914
RF Frequency (MHz)
Figure 11. IIP3 vs Frequency and LO Power
Figure 12. IP1dB vs Frequency and Temperature
18
18
4.75 V
5.00 V
5.25 V
17
16
–3 dBm
0 dBm
+3 dBm
17
16
15
IP1dB (dBm)
15
14
13
12
14
13
12
11
11
10
10
9
9
8
8
824
839
854
869
884
899
RF Frequency (MHz)
Figure 13. IP1dB vs Frequency and Supply Voltage
914
824
839
854
869
884
899
RF Frequency (MHz)
Figure 14. IP1dB vs Frequency and LO Power
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6
899
18
–3 dBm
0 dBm
+3 dBm
29
IIP3 (dBm)
884
Figure 10. IIP3 vs Frequency and Supply Voltage
30
IP1dB (dBm)
869
RF Frequency (MHz)
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914
DATA SHEET • SKY73070 DOWNCONVERSION MIXER
–55
55
–40 oC
+25 oC
+85 oC
–59
51
–67
2RF - 2LO (dB)
–40 oC
+25 oC
+85 oC
53
RF to IF Isolation (dB)
–63
–71
–75
–79
–83
49
47
45
43
41
–87
39
–91
37
–95
35
824
839
854
869
884
899
914
824
839
854
RF Frequency (MHz)
Figure 15. 2RF – 2LO vs Frequency and Temperature
884
899
914
Figure 16. RF to IF Isolation vs Frequency and Temperature
–25
–30
–40 oC
+25 oC
+85 oC
–29
–40 oC
+25 oC
+85 oC
–35
LO to RF Leakage (dBm)
–27
LO to IF Leakage (dBm)
869
RF Frequency (MHz)
–31
–33
–35
–37
–39
–41
–43
–40
–45
–50
–55
–60
–65
–70
–75
–45
–80
824
839
854
869
884
899
914
RF Frequency (MHz)
Figure 17. LO to IF Leakage vs Frequency and Temperature
Evaluation Board Description
The SKY73070 Evaluation Board is used to test the performance
of the SKY73070 downconversion mixer. An assembly drawing for
the Evaluation Board is shown in Figure 19 and the layer detail is
provided in Figure 20.
Circuit Design Configurations
The following design considerations are general in nature and
must be followed regardless of final use or configuration:
1. Paths to ground should be made as short and as low
impedance as possible.
2. The ground pad of the SKY73070 provides critical electrical
and thermal functionality. 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 device. Therefore, design the connection to the ground
pad to dissipate the maximum heat produced by the circuit
board. For more information on soldering the SKY73070, refer
824
839
854
869
884
899
914
RF Frequency (MHz)
Figure 18. LO to RF Leakage vs Frequency and Temperature
to the Package and Handling Information section of this Data
Sheet.
3. Skyworks recommends including external bypass capacitors
on the VCC voltage inputs of the device.
4. Components L5 and L4 (see Figure 21) are high-Q, low loss
inductors. These inductors must be able to pass currents in
excess of 200 mA DC.
5. Components R7 and R8 (see Figure 21) allow for external
adjustment of the IF amplifier bias points. To reduce the IF
amplifier bias current, connect pin 20 to ground through
external resistor R8. To increase the IF amplifier bias current,
connect pin 20 to VCC through external resistor R7. For
operation as specified in Tables 3 and 4, these resistors are
not required.
A schematic diagram for the SKY73070 Evaluation Board is
shown in Figure 21.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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DATA SHEET • SKY73070 DOWNCONVERSION MIXER
J5
J9
C16 C15
C13 C14
R6
L3
R5
L2
C17
T2
R4
C18
C11
L5
L4
C12
J8
R3
R7
R8
C19
C10
C20
R1
J4
C2
C3
L1
U1
C1
C5
C7
C4
C6
R2
C8
J1
J3
C9
J2
Note: This Evaluation Board is used for several different Skyworks devices.
Components C4, C6, C8 through C13, C15 through C19, R3, R5, and L3 are not used for the
device described by this Data Sheet.
S1083
Figure 19. SKY73070 Evaluation Board Assembly Diagram
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DATA SHEET • SKY73070 DOWNCONVERSION MIXER
Layer 1: Top – Metal
Layer 2: Ground
Layer 3: Power Plane
Layer 4: Solid Ground Plane
S940
Figure 20. SKY73070 Evaluation Board Layer Detail
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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DATA SHEET • SKY73070 DOWNCONVERSION MIXER
R6
0Ω
3
L4
470 nH
4
L2
8.2 nH
2
T2
1
6
J5
R2
0Ω
J3
C14
22 pF
L5
470 nH
VCC
R4
0Ω
R7
DNI
R8
DNI
×
IF+
16
N/C
17
IF–
18
RXIF
C20
1 μF
19
GND
20
1
VCC
15
VCC_IFRF
N/C
RF
GND
2
J4
R1
0Ω
C3
2.7 pF
C2
15 nH
C1
0Ω
×
3
13
SKY73070
N/C
GND
4
L1
3.3 pF
×
14
12
N/C
GND
×
11
5
6
7
8
×
N/C
GND
LO
VCC2_LO
N/C
VCC1_LO
GND
9
C7
33 pF
10
×
VCC
C5
33 pF
Notes: Values for all components are subject to change
for matching purposes.
Some component labels may be different than the
corresponding component symbol shown here.
Component values, however, are accurate as of the
date of this Data Sheet.
Figure 21. SKY73070 Evaluation Board Schematic
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S1082
DATA SHEET • SKY73070 DOWNCONVERSION MIXER
Package Dimensions
PCB Design & SMT Assembly/Rework Guidelines for MCM-L
Packages, document number 101752.
Figure 22 shows the package dimensions for the 20-pin MCM,
and Figure 23 provides the tape and reel dimensions.
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.
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.
Electrostatic Discharge (ESD) Sensitivity
The SKY73070 is a static-sensitive electronic device. Do not
operate or store near strong electrostatic fields. Take proper ESD
precautions.
THE SKY73070 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,
Pin 1
Indicator
5
4X 1.3
4X 0.65
0
5X 4.8
B
C
Pin 20
Pin 1 indicator
(See Detail B)
Pin 1
4X 1.3
4X 0.65
0
5X 4.8
5
A
20X SMT Pad
0.15 A B C
Solder Mask Opening
A
0.2 A B C
1.1 ± 0.1
0.15 A B C
0.1
Side View
Top View
Bottom View
Solder Mask Edges
0.2 x 0.2
Metal Pad Edge
3
0.45 ± 0.05
0.3 ± 0.03
0.45 ± 0.1
(0.1)
3X R0.2
3
Detail B
Detail A
All measurements are in millimeters.
Dimensioning and tolerancing according to ASME Y14.5M-1994.
S944
Figure 22. SKY73070 20-Pin MCM Package Dimensions
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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DATA SHEET • SKY73070 DOWNCONVERSION MIXER
8.00 (P1)
∅1.55 ± 0.05
4.00 (P0)
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. ESD surface resistivity is </=1 x 1010 Ohms/Square
according to EIA, JEDIC TNR specification.
5. P0/P1 10 pitches cumulative tolerance on tape: ±0.20 mm
6. A and B measurement points are 0.30 mm from bottom pocket.
7. All dimensions are in millimeters
A
S461
Figure 23. SKY73070 Tape and Reel Dimensions
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DATA SHEET • SKY73070 DOWNCONVERSION MIXER
Ordering Information
Model Name
SKY73070 700-1000 MHz Downconversion Mixer
Manufacturing Part Number
SKY73070-11 (Pb-free package)
Evaluation Kit Part Number
TW16-D660
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POSSIBILITY OF SUCH DAMAGE.
Skyworks products are not intended for use in medical, lifesaving or life-sustaining applications, or other equipment in which the failure of the Skyworks products could lead to personal injury,
death, physical or environmental damage. Skyworks customers using or selling Skyworks products for use in such applications do so at their own risk and agree to fully indemnify Skyworks for any
damages resulting from such improper use or sale.
Customers are responsible for their products and applications using Skyworks products, which may deviate from published specifications as a result of design defects, errors, or operation of
products outside of published parameters or design specifications. Customers should include design and operating safeguards to minimize these and other risks. Skyworks assumes no liability for
applications assistance, customer product design, or damage to any equipment resulting from the use of Skyworks products outside of stated published specifications or parameters.
Skyworks, the Skyworks symbol, and “Breakthrough Simplicity” are trademarks or registered trademarks of Skyworks Solutions, Inc., in the United States and other countries. Third-party brands
and names are for identification purposes only, and are the property of their respective owners. Additional information, including relevant terms and conditions, posted at www.skyworksinc.com,
are incorporated by reference.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
200716F • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • January 21, 2008
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