Data Sheets

DATA SHEET
SKY73021: 1700 – 2200 MHz High Gain and Linearity
Diversity Downconversion Mixer for 2G/3G Base Station
Transceiver Applications
Applications
Description
• 2G/3G base station transceivers:
− GSM/EDGE, CDMA, UMTS/WCDMA, PHS
The SKY73021 is a fully integrated diversity mixer that includes
Local Oscillator (LO) drivers, an LO switch, high linearity mixers,
and large dynamic range Intermediate Frequency (IF) amplifiers.
Low loss RF baluns have also been included to reduce design
complications and lower system cost.
The SKY73021 is manufactured using a robust silicon BiCMOS
process and has been designed for optimum long-term reliability.
The SKY73021 diversity downconversion mixer is provided in a
compact, 36-pin 6 x 6 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.
• Small, MCM (36-pin, 6 x 6 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_LO
• Operating frequency range: 1700 to 2200 MHz
• IF frequency range: 40 to 300 MHz
• Conversion gain: 6.0 dB
• Input IP3: 26.0 dBm
• Output IP3: 32.0 dBm
• Noise figure: 9.6 dB
• Integrated LO drivers
• Integrated low loss RF baluns
• High linearity IF amplifiers
• On-chip SPDT LO switch (greater than 50 dB LO-to-LO isolation)
VCC_IFA
Features
The SKY73021 features an input IP3 of 26.0 dBm and a Noise
Figure (NF) of 9.6 dB, making the device an ideal solution for high
dynamic range systems such as 2G/3G base station receivers.
The LO switch provides more than 50 dB of isolation between LO
inputs and supports the switching time required for GSM/EDGE
base stations.
IFA+
IFA–
• Private mobile radio
RIFA
• Land mobile radio
• Wireless Local Loop
• High performance radio links
RFA
LO1
LO2
RFB
VCC_IFB
IFB+
IFB–
RIFB
LO_SEL
VCC_LO
S643
Figure 1. SKY73021 Block Diagram
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VCC_RFA
NC
GND
IFA–
IFA+
NC
VCC_IFA
RIFA
NC
DATA SHEET • SKY73021 DOWNCONVERSION MIXER
36
35
34
33
32
31
30
29
28
3
25
GND
VCC_LO
4
24
GND
GND
5
23
LO_SEL
VCC_LO
6
22
GND
GND
7
21
VCC_LO
NC
8
20
GND
RFB
9
19
LO1
10
11
12
13
14
15
16
17
18
NC
GND
RIFB
GND
VCC_IFB
26
NC
2
IFB–
NC
IFB+
LO2
GND
27
NC
1
VCC_RFB
RFA
S646
Figure 2. SKY73021 Pinout – 36-Pin MCM
Table 1. SKY73021 Signal Descriptions
Pin #
Name
Description
Pin #
Name
Description
1
RFA
Channel A RF input
19
LO1
Local oscillator 1 input
2
NC
No connect
20
GND
Ground
3
GND
Ground
21
VCC_LO
DC supply, +5 V
4
VCC_LO
DC supply, +5 V
22
GND
Ground
5
GND
Ground
23
LO_SEL
Local oscillator select switch control
6
VCC_LO
DC supply, +5 V
24
GND
Ground
7
GND
Ground
25
GND
Ground
8
NC
No connect
26
GND
Ground
9
RFB
Channel B RF input
27
LO2
Local oscillator 2 input
10
VCC_RFB
Channel B RF DC supply, +5 V
28
NC
No connect
11
NC
No connect
29
RIFA
Channel A IF bias adjust
12
GND
Ground
30
VCC_IFA
Channel A IF DC supply, +5 V
13
IFB+
Positive channel B IF output
31
NC
No connect
14
IFB–
Negative channel B IF output
32
IFA+
Positive channel A IF output
15
NC
No connect
33
IFA–
Negative channel A IF output
16
VCC_IFB
Channel B IF DC supply, +5 V
34
GND
Ground
17
RIFB
Channel B IF bias adjust
35
NC
No connect
18
NC
No connect
36
VCC_RFA
Channel A RF DC supply, +5 V
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DATA SHEET • SKY73021 DOWNCONVERSION MIXER
Functional Description
The SKY73021 is a high gain diversity mixer, optimized for base
station receiver applications. The device consists of two diversity
channels (A and B), each consisting of a low loss RF balun, high
linearity passive mixer, and a low noise IF amplifier.
Two LO amplifiers (independent of channels A and B) are also
included that allow the SKY73021 to connect directly to the output
of a Voltage Controlled Oscillator (VCO). This eliminates the extra
gain stages needed by most discrete passive mixers. A Single
Pole, Double Throw (SPDT) switch has been included to select
between two different LO inputs for frequency hopping
applications (i.e., GSM).
RF Baluns and Passive Mixer
The RF baluns provide a single ended input, which can easily be
matched to 50 Ω using a simple external matching circuit. The RF
baluns offer very low loss, and excellent amplitude and phase
balance.
The high linearity SKY73021 is a passive, double balanced mixer
that provides a very low conversion loss and an excellent 3rd
Order Input Intercept Point (IIP3).
Additionally, the balanced nature of the mixer provides for high
port-to-port isolation.
LO Buffers and SPDT LO Switch
The LO buffers allow the input power of the SKY73021 to be in
the range of ±3 dBm. The LO section is optimized for low-side LO
injection. However, each of the two LOs can be driven over a wide
frequency range with only slight degradation in performance.
LO_SEL Input
LO Path Selected
High
LO1 (pin 19) enabled
Low
LO2 (pin 27) enabled
For applications that do not require frequency hopping, LO_SEL is
fixed to one state and the appropriate LO input is used. An internal
pull-down resistor enables the LO2 input.
IF Amplifier
The SKY73021 includes high dynamic range IF amplifiers that
follow the passive mixers 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.
A simple matching network allows the output ports to be matched
to a balanced 200 Ω impedance. The IF amplifiers are optimized
for IF frequencies between 40 and 300 MHz. The IF amplifiers can
be operated outside of this range, but with a slight degradation in
performance.
Electrical and Mechanical Specifications
The absolute maximum ratings of the SKY73021 are provided in
Table 2 and the recommended operating conditions in Table 3.
Electrical characteristics for the SKY73021 are provided in
Table 4.
Typical performance characteristics of the SKY73021 are
illustrated in Figures 3 through 35.
A high isolation SPDT switch allows the SKY73021 to be used for
frequency hopping applications. This switch provides greater than
50 dB of LO1 to LO2 isolation:
Table 2. SKY73021 Absolute Maximum Ratings
Parameter
Symbol
Minimum
Maximum
Units
4.5
5.5
V
ICC
440
mA
RF input power
PRF
20
dBm
LO input power
PLO
Operating case temperature
TC
Junction temperature
TJ
Storage case temperature
TSTG
Supply voltage, +5 V (VCC_LO, VCC_RFA,
VCC_RFB, VCC_IFA, VCC_IFB)
VCC
Supply current
Note:
20
dBm
–40
+85
°C
150
°C
–40
+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 value.
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
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DATA SHEET • SKY73021 DOWNCONVERSION MIXER
Table 3. SKY73021 Recommended Operating Conditions
Parameter
Symbol
Minimum
Typical
Maximum
Units
4.75
5.00
5.25
V
Supply voltage, +5 V (VCC_LO, VCC_RFA,
VCC_RFB, VCC_IFA, VCC_IFB)
VCC
Supply current
ICC
LO input power
PLO
–6
LO select input:
high
low
LO_SELH
LO_SELL
2.2
Operating case temperature
TC
RF frequency range
LO frequency range (Note 1)
IF frequency range
380
mA
0
+6
dBm
0.8
V
V
–40
+85
°C
FRF
1700
2200
MHz
FLO
1460
2000
MHz
FIF
40
300
MHz
Note 1: The SKY73021 has been optimized for low side LO injection. However, the LO can be used outside of the specified frequency range with degraded performance.
Table 4. SKY73021 Electrical Specifications (1 of 2)
(Voltage Supply = +5 V, TC = +25 °C, LO = 0 dBm, RF Frequency = 1750 MHz, IF Frequency = 201 MHz, LO Frequency = 1549 MHz, Unless
Otherwise Noted)
Parameter
Conversion gain
Symbol
Test Condition
G
Gain versus temperature
Noise Figure
Min
5.6
6.0
6.6
±0.7
–40 to +85 °C
±0.8
9.6
Noise Figure with a blocker signal
NFBLK
Blocking signal input
power = +8 dBm
Third order input intercept point
IIP3
FRF = 1750.0 MHz and
1750.8 MHz,
PRF = –10 dBm/tone
Third order input intercept point versus
temperature
Max
–40 to +85 °C
NF
Noise Figure versus temperature
Typical
21
25.0
dB
dB
10.9
dB
dB
23
dB
26.0
dBm
–40 to +85 °C
±0.6
dB
dBm
Third order output intercept point
OIP3
FRF = 1750.0 MHz and
1750.8 MHz,
PRF = –10 dBm/tone
32.0
2RF – 2LO
2x2
PRF = –10 dBm
–66
3RF – 3LO
3x3
PRF = –10 dBm
–80
dBc
Input 1 dB compression point
IP1dB
17.0
dBm
Output 1 dB compression point
OP1dB
22.0
dBm
15.5
–57
dBc
LO1-to-LO2 isolation
40
50
dB
Channel-to-channel isolation
30
47
dB
RF-to IF-isolation
30
66
dB
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Units
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DATA SHEET • SKY73021 DOWNCONVERSION MIXER
Table 4. SKY73021 Electrical Specifications (2 of 2)
(Voltage Supply = +5 V, TC = +25 °C, LO = 0 dBm, RF Frequency = 1750 MHz, IF Frequency = 201 MHz, LO Frequency = 1549 MHz, Unless
Otherwise Noted)
Parameter
Symbol
Test Condition
Min
LO leakage:
@ RF port
@ IF port
LO_SEL input
–20
Typical
Max
Units
–41
–50
–24
–27
dBm
dBm
+150
+250
µA
0.5
µs
LO switching time
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 input return loss
Zout_if
With external matching
components
14
dB
9.0
9.0
4.75 V
5.00 V
5.25 V
7.0
6.0
5.0
4.0
1710
0 oC
+25 oC
+85 oC
8.0
Gain (dB)
Gain (dB)
8.0
7.0
6.0
5.0
1735
1760
1785
1810
1835
1860
1885
4.0
1710
1910
1735
1760
1785
RF Frequency (MHz)
Figure 3. Mixer A Gain vs Frequency and Supply Voltage
1860
1885
1910
9.0
–3 dBm
0 dBm
+3 dBm
4.75 V
5.00 V
5.25 V
8.0
Gain (dB)
8.0
Gain (dB)
1835
Figure 4. Mixer A Gain vs Frequency and Temperature
9.0
7.0
6.0
5.0
4.0
1710
1810
RF Frequency (MHz)
7.0
6.0
5.0
1735
1760
1785
1810
1835
1860
1885
RF Frequency (MHz)
Figure 5. Mixer A Gain vs Frequency and LO Power
1910
4.0
1710
1735
1760
1785
1810
1835
1860
1885
1910
RF Frequency (MHz)
Figure 6. Mixer B Gain vs Frequency and Supply Voltage
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DATA SHEET • SKY73021 DOWNCONVERSION MIXER
9.0
9.0
0 oC
+25 oC
+85 oC
–3 dBm
0 dBm
+3 dBm
8.0
Gain (dB)
Gain (dB)
8.0
7.0
6.0
5.0
7.0
6.0
5.0
4.0
1710
1735
1760
1785
1810
1835
1860
1885
4.0
1710
1910
1735
1760
1785
RF Frequency (MHz)
Figure 7. Mixer B Gain vs Frequency and Temperature
12
Noise figure (dB)
Noise Figure (dB)
1910
11
10
9
12
11
10
9
8
8
7
7
6
6
1735
1760
1785
1810
1835
1860
1885
0 oC
+25 oC
+85 oC
13
5
1710
1910
1735
1760
1785
RF Frequency (MHz)
1810
1835
1860
1885
1910
RF Frequency (MHz)
Figure 9. Mixer A Noise Figure vs Frequency and Supply Voltage
Figure 10. Mixer A Noise Figure vs Frequency and Temperature
15
15
14
14
–3 dBm
0 dBm
+3 dBm
13
4.75 V
5.00 V
5.25 V
13
Noise figure (dB)
12
11
10
9
12
11
10
9
8
8
7
7
6
6
1735
1760
1785
1810
1835
1860
1885
1910
RF Frequency (MHz)
Figure 11. Mixer A Noise Figure vs Frequency and LO Power
5
1710
1735
1760
1785
1810
1835
1860
1885
1910
RF Frequency (MHz)
Figure 12. Mixer B Noise Figure vs Frequency and Supply Voltage
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6
1885
14
4.75 V
5.00 V
5.25 V
13
Noise figure (dB)
1860
15
14
5
1710
1835
Figure 8. Mixer B Gain vs Frequency and LO Power
15
5
1710
1810
RF Frequency (MHz)
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DATA SHEET • SKY73021 DOWNCONVERSION MIXER
15
15
14
13
12
11
10
9
12
11
10
9
8
8
7
7
6
6
5
1710
1735
1760
1785
1810
1835
1860
1885
–3 dBm
0 dBm
+3 dBm
13
Noise figure (dB)
Noise Figure (dB)
14
0 oC
+25 oC
+85 oC
5
1710
1910
1735
1760
1785
RF Frequency (MHz)
Figure 13. Mixer B Noise Figure vs Frequency and Temperature
1860
1885
1910
30
29
0 oC
+25 oC
+85 oC
29
4.75 V
5.00 V
5.25 V
28
28
27
IIP3 (dBm)
27
IIP3 (dBm)
1835
Figure 14. Mixer B Noise Figure vs Frequency and LO Power
30
26
25
24
26
25
24
23
23
22
22
21
21
20
1710
1735
1760
1785
1810
1835
1860
1885
20
1710
1910
1735
1760
1785
RF Frequency (MHz)
1810
1835
1860
1885
1910
RF Frequency (MHz)
Figure 15. Mixer A IIP3 vs Frequency and Supply Voltage
Figure 16. Mixer A IIP3 vs Frequency and Temperature
30
30
–3 dBm
0 dBm
+3 dBm
29
28
4.75 V
5.00 V
5.25 V
29
28
27
IIP3 (dBm)
27
IIP3 (dBm)
1810
RF Frequency (MHz)
26
25
24
26
25
24
23
23
22
22
21
21
20
1710
1735
1760
1785
1810
1835
1860
1885
RF Frequency (MHz)
Figure 17. Mixer A IIP3 vs Frequency and LO Power
1910
20
1710
1735
1760
1785
1810
1835
1860
1885
1910
RF Frequency (MHz)
Figure 18. Mixer B IIP3 vs Frequency and Supply Voltage
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DATA SHEET • SKY73021 DOWNCONVERSION MIXER
30
30
0 oC
+25 oC
+85 oC
29
28
28
27
IIP3 (dBm)
27
IIP3 (dBm)
–3 dBm
0 dBm
+3 dBm
29
26
25
24
26
25
24
23
23
22
22
21
21
20
1710
1735
1760
1785
1810
1835
1860
1885
20
1710
1910
1735
1760
1785
4.75 V
5.00 V
5.25 V
19
18
17
16
1910
15
14
17
16
15
14
13
13
12
12
11
11
1735
1760
1785
1810
1835
1860
1885
10
1710
1910
1735
1760
1785
1810
1835
1860
1885
1910
RF Frequency (MHz)
RF Frequency (MHz)
Figure 21. Mixer A Input P1dB vs Frequency and Supply Voltage
Figure 22. Mixer A Input P1dB vs Frequency and Temperature
20
20
–3 dBm
0 dBm
+3 dBm
19
18
4.75 V
5.00 V
5.25 V
19
18
Input P1dB (dBm)
17
16
15
14
17
16
15
14
13
13
12
12
11
11
1735
1760
1785
1810
1835
1860
1885
RF Frequency (MHz)
Figure 23. Mixer A Input P1dB vs Frequency and LO Power
1910
10
1710
1735
1760
1785
1810
1835
1860
1885
1910
RF Frequency (MHz)
Figure 24. Mixer B Input P1dB vs Frequency and Supply Voltage
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8
1885
0 oC
+25 oC
+85 oC
19
Input P1dB (dBm)
Input P1dB (dBm)
18
Input P1dB (dBm)
1860
20
20
10
1710
1835
Figure 20. Mixer B IIP3 vs Frequency and LO Power
Figure 19. Mixer B IIP3 vs Frequency and Temperature
10
1710
1810
RF Frequency (MHz)
RF Frequency (MHz)
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DATA SHEET • SKY73021 DOWNCONVERSION MIXER
20
20
0 oC
+25 oC
+85 oC
19
18
17
16
15
14
17
16
15
14
13
13
12
12
11
11
10
1710
1735
1760
1785
1810
1835
1860
1885
–3 dBm
0 dBm
+3 dBm
19
Input P1dB (dBm)
Input P1dB (dBm)
18
10
1710
1910
1735
1760
1785
RF Frequency (MHz)
1810
1835
1860
1885
Figure 25. Mixer B Input P1dB vs Frequency and Temperature
Figure 26. Mixer B Input P1dB vs Frequency and LO Power
90
–62
Mixer A
Mixer B
–63
4.75 V
5.00 V
5.25 V
85
RF – IF Isolation (dBc)
–64
–65
2RF – 2LO (dBc)
1910
RF Frequency (MHz)
–66
–67
–68
–69
80
75
70
65
–70
60
–71
–72
1710
1735
1760
1785
1810
1835
1860
1885
55
1710
1910
1735
1760
1785
RF Frequency (MHz)
Figure 27. Mixer A and B 2RF – 2LO vs Frequency
1835
1860
1885
1910
Figure 28. Mixer A RF to IF Isolation vs Frequency and Supply
Voltage
–35
90
4.75 V
5.00 V
5.25 V
0 oC
+25 oC
+85 oC
–40
LO – IF Leakage (dBc)
85
RF – IF Isolation (dBc)
1810
RF Frequency (MHz)
80
75
70
65
–45
–50
–55
–60
60
55
1710
1735
1760
1785
1810
1835
1860
1885
1910
RF Frequency (MHz)
Figure 29. Mixer B RF to IF Isolation vs Frequency and Supply
Voltage
–65
1525
1555
1585
1615
1645
1675
1705
LO Frequency (MHz)
Figure 30. Mixer A LO to IF Leakage vs Frequency and
Temperature
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DATA SHEET • SKY73021 DOWNCONVERSION MIXER
–35
–25
0 oC
+25 oC
+85 oC
0 oC
+25 oC
+85 oC
–30
LO – RFA Leakage (dBc)
LO – IF Leakage (dBc)
–40
–45
–50
–55
–60
–35
–40
–45
–50
–65
1525
1555
1585
1615
1645
1675
–55
1525
1705
1555
1585
1615
LO Frequency (MHz)
Figure 31. Mixer B LO to IF Leakage vs Frequency and
Temperature
1675
1705
Figure 32. Mixer A LO to RF Leakage vs Frequency and
Temperature
–25
62
0 oC
+25 oC
+85 oC
4.75 V
5.00 V
5.25 V
60
LO1 – LO2 Isolation (dBc)
–30
LO – RFB Leakage (dBc)
1645
LO Frequency (MHz)
–35
–40
–45
58
56
54
52
50
48
46
–50
44
–55
1525
1555
1585
1615
1645
1675
1705
42
1509
1534
1559
1584
1609
1634
1659
Channel A – Channel B Isolation (dBc)
58
4.75 V
5.00 V
5.25 V
56
54
52
50
48
46
44
42
40
1735
1760
1785
1810
1835
1860
1885
1910
RF Frequency (MHz)
Figure 35. Channel A to Channel B IF Isolation vs Frequency and
Supply Voltage
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10
1709
Figure 34. LO1 to LO2 Isolation vs Frequency and Supply Voltage
Figure 33. Mixer B LO to RF Leakage vs Frequency and
Temperature
38
1710
1684
RF Frequency (MHz)
LO Frequency (MHz)
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DATA SHEET • SKY73021 DOWNCONVERSION MIXER
Evaluation Board Description
pad to dissipate the maximum heat produced by the circuit
board. For more information on soldering the SKY73021, refer
to the Package and Handling Information section of this Data
Sheet.
The SKY73021 Evaluation Board is used to test the performance
of the SKY73021 downconversion mixer. An assembly drawing for
the Evaluation Board is shown in Figure 36 and the layer detail is
provided in Figure 37.
3. Skyworks recommends including external bypass capacitors
on the VCC voltage inputs of the device.
4. Components L5, L6, L14, and L15 (see Figure 38) are high-Q,
low loss inductors. These inductors must be able to pass
currents in excess of 200 mA DC.
Circuit Design Configurations
The following design considerations are general in nature and
must be followed regardless of final use or configuration:
5. Components R1 and R2 (see Figure 38) allow for external
adjustment of the IF amplifier bias points. For operation as
specified in Tables 3 and 4, these resistors are not required.
1. Paths to ground should be made as short and as low
impedance as possible.
2. The ground pad of the SKY73021 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
A schematic diagram for the SKY73021 Evaluation Board is
shown in Figure 38.
J9
J5
C34
C35
L17
L16
J4
C2
L12
L13
R4
C25
T2
C32
L1
C28
C29
J8
C33
C39
C26
L2
L14
L15
C38
C3
L11
R2
C27
C1
R5
C23
C22
C20
C4
J1
C24
C21
J2
C5
C17
C8
C7
C41
C6
L5
C14
L6
R6 R1
C40
L4
C13
C12
L3
J7
T1
C18
L10
C11
C19
R3
L18
C36
J10
L8
L19
C37
C15
J3
L9
C16
J6
S905
Figure 36. SKY73021 Evaluation Board Assembly Diagram
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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11
DATA SHEET • SKY73021 DOWNCONVERSION MIXER
Layer 1: Top -- Metal
Layer 2: Ground
Layer 3: Power Plane
Layer 4: Solid Ground Plane
S904
Figure 37. SKY77021 Evaluation Board Layer Detail
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DATA SHEET • SKY73021 DOWNCONVERSION MIXER
L17
DNI
L14
470 nH
C35
DNI
R4
0Ω
DB714
C32
DNI
L13
12 nH
C29
DNI
C27
33 pF
C33
DNI
J9
L12
0Ω
J5
C34
DNI
T2
L15
470 nH
VCC
L16
DNI
C28
15 pF
C26
1 μF
VCC
R2
DNI
R5
DNI
C2
DNI
x
29
28
LO2
NC
GND
GND
GND
11
12
13
14
15
x
10
16
LO1
17
23
VCC
J2
C21
33 pF
22
VCC
21
20
L10
0Ω
19
C17
33 pF
NC
RIFB
RFB
GND
C22
12 pF
18
C18
DNI
C20
1 μF
J3
C19
DNI
R1
DNI
x
C7
4.7 nH
NC
VCC_IFB
9
VCC_LO
NC
8
GND
IFB–
x
GND
x
C6
DNI
C8
5.6 pF
LO_SEL
VCC_LO
IFB+
L4
1.5 pF
L3
0Ω
SKY73021
GND
GND
7
C25
DNI
Element Jumper
GND
NC
6
C24
DNI
24
VCC_RFB
5
C23
33 pF
J8
25
VCC_LO
C5
33 pF
27
26
2
3
C4
DNI
L11
0Ω
NC
NC
30
RIFA
31
IFA+
32
IFA–
33
4
VCC
J7
RFA
34
VCC_IFA
C3
4.7 nH
1
35
NC
C1
5.6 pF
GND
L2
1.5 pF
VCC_RFA
L1
0Ω
x
36
J4
x
x
VCC
VCC
L5
470 nH
C14
33 pF
C13
1 μF
R6
DNI
VCC
VCC
C12
DNI
C11
DNI
L6
470 nH
T1
C15
DNI
DB714
Notes: 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.
R3
0Ω
L8
12 nH
J6
L18
DNI
J10
C16
15 pF
L19
DNI
C37
DNI
L9
0Ω
C36
DNI
S1161
The Evaluation Board can be converted to provide a differential
output by removing components T1, T2, R3, and R4.
Figure 38. SKY73021 Evaluation Board Schematic
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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13
DATA SHEET • SKY73021 DOWNCONVERSION MIXER
Package Dimensions
The PCB layout footprint for the SKY73021 is provided in
Figure 39. Figure 40 shows the package dimensions for the
36-pin MCM, and Figure 41 provides the tape and reel
dimensions.
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.
additional information, refer to the Skyworks Application Note,
PCB Design & SMT Assembly/Rework Guidelines for MCM-L
Packages, document number 101752.
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.
Electrostatic Discharge (ESD) Sensitivity
The SKY73021 is a static-sensitive electronic device. Do not
operate or store near strong electrostatic fields. Take proper ESD
precautions.
THE SKY73021 is rated to Moisture Sensitivity Level 3 (MSL3) at
260 °C. It can be used for lead or lead-free soldering. For
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DATA SHEET • SKY73021 DOWNCONVERSION MIXER
6.3
36X 0.5
0.35
Component Outline
0.25
0.05
0.15
0.05
0.75 0.85
36X 0.5
12X 0.075
Stencil and
Metallization
6.3
24X 0.65
Component Outline
Soldermask Opening
SMT Pad Detail
Scale: 2X
9X This Rotation
9X Rotated 180o
9X Rotated 90o CW
9X Rotated 90o CCW
Stencil aperture size for center
ground pads should be 80% to
100% (by area) of the solder
mask opening of the package.
12X 0.075
24X 0.65
Stencil Aperture
Top View
6.4
6.3
0.5
Pitch
Typ
2X 2.795
Pin 1
6.4
3.8
2X 2.795
1.9
6.3
4
1.9
Component Outline
3.8
Component Outline
0.25 Around
Ground Pins
4
Metallization
Top View
Thermal Via Array.
∅0.3 mm on 0.5 mm pitch.
Additional vias in common ground
pad will improve thermal performance
NOTE: thermal vias should be tented
and filled with solder mask, 30-35 μm
Cu plating recommended.
Solder Mask Opening
Top View
Note: The cross-hatched area represents the merger of the center
ground pad +10 individual I/O ground pads. All I/O ground
pads should have at least one via connected to internal ground
planes for optimum electrical performance.
All measurements are in millimeters
S1125
Figure 39. PCB Layout Footprint for the SKY73021 6 x 6 mm MCM
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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15
DATA SHEET • SKY73021 DOWNCONVERSION MIXER
18X 2.9
Pin 1 Indicator
C
Pin 36
4X 2
B
6
Pin 1 Indicator
(See Detail D)
Pin 1
4X 1.5
4X 0.5
4X 1
A
4X 2
4X 1
4X 1.5
6
4X 0.5
2X 1.9
18X 2.9
36x SMT Pad
0.15 A B C
A
1.1 ± 0.1
3X R0.2
2X 1.9
0.1
0.15 A B C
Top View
Side View
Bottom View
Solder Mask Opening
0.2 A B C
0.5 ± 0.1
0.2 x 0.2
(0.1)
0.25 ± 0.05
0.4 ± 0.05
Detail D
Metal Pad Edge
All measurements are in millimeters
Detail A
Pads are solder mask defined on one edge and metal
defined on three edges.
Dimensioning and tolerancing according to ASME Y14.5M-1994
Figure 40. SKY73021 36-Pin MCM Package Dimensions
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S689_A
DATA SHEET • SKY73021 DOWNCONVERSION MIXER
2.00 ± 0.05
4.00
8.00
∅1.55 ± 0.05
0.30 ± 0.05
B
5.50 ± 0.05
A
1.75 ± 0.10
6.30
A
5o Max.
12.00 ± 0.30
Pin #1
Indicator
B
∅1.50 Min.
1.70
6.30
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
C1222
Figure 41. SKY73021 Tape and Reel Dimensions
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
200450E • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • May 13, 2008
17
DATA SHEET • SKY73021 DOWNCONVERSION MIXER
Ordering Information
Model Name
SKY73021 Downconversion Mixer
Manufacturing Part Number
SKY73021-11 (Pb-free package)
Evaluation Board Part Number
TW16-D670
Copyright © 2007 Skyworks Solutions, Inc. All Rights Reserved.
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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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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
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