SKY73084-11 [SKYWORKS]

300 - 500 MHz High Gain and Linearity Diversity Downconversion Mixer; 300 - 500 MHz的高增益和线性度差异下变频混频器
SKY73084-11
型号: SKY73084-11
厂家: SKYWORKS SOLUTIONS INC.    SKYWORKS SOLUTIONS INC.
描述:

300 - 500 MHz High Gain and Linearity Diversity Downconversion Mixer
300 - 500 MHz的高增益和线性度差异下变频混频器

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DATA SHEET  
SKY73084-11: 300 – 500 MHz High Gain and Linearity  
Diversity Downconversion Mixer  
Applications  
Description  
The SKY73084-11 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.  
2G/3G base station transceivers:  
GSM/EDGE, CDMA, UMTS/WCDMA  
Land mobile radio  
High performance radio links  
The SKY73084-11 features an input IP3 of +25.2 dBm and a  
Noise Figure (NF) of 9.4 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 60 dB of isolation  
between LO inputs and supports the switching time required for  
GSM/EDGE base stations.  
Features  
Operating frequency range: 300 to 500 MHz  
IF frequency range: 50 to 250 MHz  
Conversion gain: 9.8 dB  
The SKY73084-11 is manufactured using a robust silicon BiCMOS  
process and has been designed for optimum long-term reliability.  
The SKY73084-11 diversity downconversion mixer is provided in  
a compact, 36-pin 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.  
Input IP3: +25.2 dBm  
Output IP3: +35 dBm  
Noise figure: 9.4 dB  
Integrated LO drivers  
Integrated low loss RF baluns  
High linearity IF amplifiers  
On-chip SPDT LO switch (greater than 60 dB LO-to-LO isolation)  
Small, MCM (36-pin, 6 x 6 mm) Pb-free package (MSL3, 260 °C  
per JEDEC J-STD-020)  
IFA+  
IFA–  
RFA  
LO1  
LO_SEL  
(Switch Enable)  
LO2  
RFB  
S643  
IFB+  
IFB–  
Figure 1. SKY73084-11 Block Diagram  
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com  
200884F • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • April 3, 2009  
1
DATA SHEET • SKY73084-11 DOWNCONVERSION MIXER  
36  
35  
34  
33  
32  
31  
30  
29  
28  
27  
26  
1
2
RFA  
NC  
LO2  
GND  
GND  
GND  
25  
24  
3
4
GND  
VCC_LO  
23  
22  
5
6
GND  
LO_SEL  
GND  
VCC_LO  
21  
20  
19  
7
8
9
GND  
NC  
VCC_LO  
GND  
RFB  
LO1  
10  
11  
12  
13  
14  
15  
16  
17  
18  
S646  
Figure 2. SKY73084-11 Pinout – 36-Pin MCM  
(Top View)  
Table 1. SKY73084-11 Signal Descriptions  
Pin #  
1
Name  
Description  
RF channel A input  
Pin #  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
Name  
Description  
Local oscillator #1 input  
RFA  
NC  
LO1  
2
No connect  
GND  
VCC5  
GND  
Ground  
3
GND  
VCC1  
GND  
VCC2  
GND  
NC  
Ground  
DC supply, +5 V  
Ground  
4
DC supply, +5 V  
Ground  
5
LO_SEL  
GND  
GND  
GND  
LO2  
Local oscillator switch select  
Ground  
6
DC supply, +5 V  
Ground  
7
Ground  
8
No connect  
Ground  
9
RFB  
VCC3  
NC  
RF channel B input  
DC supply, +5 V  
No connect  
Local oscillator #2 input  
No connect  
10  
11  
12  
13  
14  
15  
16  
17  
18  
NC  
RIFA  
VCC6  
NC  
IF channel A bias control  
DC supply, +5 V  
No connect  
GND  
IFB+  
IFB–  
NC  
Ground  
IF channel B positive output  
IF channel B negative output  
No connect  
IFA+  
IFA–  
GND  
NC  
IF channel A positive output  
IF channel A negative output  
Ground  
VCC4  
RIFB  
NC  
DC supply, +5 V  
IF channel B bias control  
No connect  
No connect  
VCC7  
DC supply, +5 V  
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com  
April 3, 2009 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 200884F  
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DATA SHEET • SKY73084-11 DOWNCONVERSION MIXER  
A high isolation SPDT switch allows the SKY73084-11 to be  
used for frequency hopping applications. This switch provides  
greater than 60 dB of LO1 to LO2 isolation:  
Functional Description  
The SKY73084-11 is a high gain diversity mixer, optimized for  
base station receiver applications. The device consists of two  
diversity channels, each consisting of a low loss RF balun, high  
linearity passive mixer, and a low noise IF amplifier.  
LO_SEL Logic:  
High  
State:  
LO1 enabled  
LO2 enabled  
LO amplifiers are also included that allow the SKY73084-11 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).  
Low  
For applications that do not require frequency hopping, LO_SEL  
is fixed to one state and the appropriate LO input is used.  
IF Amplifier  
The SKY73084-11 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.  
RF Baluns and Passive Mixer  
The RF baluns provide a single ended input, which can easily be  
matched to 50 using a simple matching circuit. The RF  
baluns offer very low loss and excellent amplitude and phase  
balance.  
A simple matching network allows the output ports to be  
matched to a balanced 200 impedance. The IF amplifiers are  
optimized for IF frequencies between 50 and 250 MHz. The IF  
amplifiers can be operated outside of this range, but with a  
slight degradation in performance.  
The high linearity mixer is a passive, double balanced mixer that  
provides a very low insertion loss, and excellent 3rd Order Input  
Insertion Point (IIP3) and linearity performance.  
Additionally, the balanced nature of the mixer provides for  
excellent port-to-port isolation.  
Electrical and Mechanical Specifications  
LO Buffers and SPDT LO Switch  
The absolute maximum ratings of the SKY73084-11 are  
provided in Table 2. The recommended operating conditions are  
specified in Table 3 and electrical specifications are provided in  
Table 4.  
The LO buffers allow the input power of the SKY73084-11 to be  
programmed in the range of –6 to +6 dBm. The LO section has  
been optimized for high-side LO injection. However, the LO can  
be driven over a wide frequency range with only slight  
degradation in performance.  
Typical performance characteristics of the SKY73084-11 are  
illustrated in Figures 3 through 31.  
Table 2. SKY73084-11 Absolute Maximum Ratings  
Parameter  
Supply voltage, +5 V (VCC1 – VCC7)  
Supply current  
Symbol  
Minimum  
Typical  
5.0  
Maximum  
5.5  
Units  
V
VCC  
ICC  
4.5  
370  
430  
mA  
dBm  
dBm  
°C  
RF input power  
PRF  
PLO  
TC  
+20  
LO input power  
0
+20  
Operating case temperature  
Junction temperature  
Storage case temperature  
–40  
–40  
+85  
TJ  
+150  
+125  
°C  
TSTG  
°C  
Notes: 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 • sales@skyworksinc.com • www.skyworksinc.com  
200884F • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • April 3, 2009  
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DATA SHEET • SKY73084-11 DOWNCONVERSION MIXER  
Table 3. SKY73084-11 Recommended Operating Conditions  
Parameter  
RF frequency range  
Symbol  
Minimum  
300  
Typical  
Maximum  
500  
Units  
MHz  
MHz  
MHz  
V
FRF  
FLO  
FIF  
LO frequency range (Note 1)  
IF frequency range  
350  
600  
50  
250  
Supply voltage, +5 V (VCC1 – VCC7)  
Supply current  
VCC  
ICC  
4.75  
5.00  
370  
0
5.25  
mA  
LO input power  
PLO  
–6  
2.2  
–40  
+6  
dBm  
LO select logic:  
high  
low  
LO_SELH  
LO_SELL  
V
V
0.8  
Operating case temperature  
TC  
+85  
°C  
Note 1: The SKY73084-11 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. SKY73084-11 Electrical Specifications (1 of 2)  
(Voltage Supply = +5 V, TC = +25 °C, LO = 0 dBm, RF Frequency = 350 MHz, IF Frequency = 90 MHz, LO Frequency = 440 MHz, Unless  
Otherwise Noted)  
Parameter  
Symbol  
Test Condition  
Min  
Typical  
Max  
Units  
Conversion gain  
G
FRF = 328 to 388 MHz,  
VCC = 4.75 to 5.25 V,  
PLO = –3 to +3 dBm  
7.5  
9.8  
dB  
Gain variation over temperature  
FRF = 350 MHz,  
±1  
dB  
Tc = –40 to +85 °C  
Noise Figure  
NF  
FRF = 350 MHz  
9.4  
11.0  
25  
dB  
dB  
Noise Figure variation over temperature  
FRF = 350 MHz,  
Tc = –40 to +85 °C  
±0.8  
Noise Figure with a blocker signal  
Third order input intercept point  
NFBLK  
IIP3  
Blocking signal input  
power = +8 dBm  
18  
dB  
FRF = 350 and 350.8 MHz,  
PRF = –10 dBm/each tone,  
VCC = 4.75 to 5.25 V,  
PLO = –3 to +3 dBm  
+23.5  
+25.2  
dBm  
Input IP3 variation over temperature  
Third order output intercept point  
FRF = 350 and 350.8 MHz,  
Tc = –40 to +85 °C  
±0.4  
dB  
OIP3  
FRF = 350 and 350.8 MHz,  
PRF = –10 dBm/each tone,  
VCC = 4.75 to 5.25 V,  
PLO = –3 to +3 dBm  
+35  
dBm  
2RF – 2LO  
2x2  
PRF = –10 dBm  
PRF = –10 dBm  
PRF = +2 dBm  
–63  
–85  
–57  
–70  
–95  
dBc  
dBc  
dBc  
dBm  
dBm  
dB  
3RF – 3LO  
3x3  
4RF – 3LO  
4x3  
–102  
+13.2  
+22.0  
63  
Input 1 dB compression point  
Output 1 dB compression point  
LO1 to LO2 isolation  
IP1dB  
OP1dB  
+9.5  
FRF = 350 MHz,  
FLO = 440 MHz  
40  
37  
30  
Channel-to-channel isolation  
RF to IF isolation  
FRF = 350 MHz,  
FLO = 440 MHz  
41  
76  
dB  
dB  
Frf = 350 MHz  
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com  
April 3, 2009 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 200884F  
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DATA SHEET • SKY73084-11 DOWNCONVERSION MIXER  
Table 4. SKY73084-11 Electrical Specifications (2 of 2)  
(Voltage Supply = +5 V, TC = +25 °C, LO = 0 dBm, RF Frequency = 350 MHz, IF Frequency = 90 MHz, LO Frequency = 440 MHz, Unless  
Otherwise Noted)  
Parameter  
Symbol  
Test Condition  
FRF = 350 MHz,  
Min  
Typical  
Max  
Units  
LO leakage:  
1xLO to RF port  
2xLO to RF port  
3xLO to RF port  
4xLO to RF port  
1xLO to IF port  
FLO = 440 MHz  
–40  
–28  
–50  
–25  
–22  
–28  
–28  
–23  
dBm  
dBm  
dBm  
dBm  
dBm  
–40  
LO_SEL input  
–20  
+150  
+250  
1.0  
µA  
µs  
dB  
LO switching time  
RF port input return loss  
ZIN_RF  
With external matching  
components  
14  
14  
14  
LO port input return loss  
IF port input return loss  
ZIN_LO  
With external matching  
components  
dB  
dB  
ZOUT_IF  
With external matching  
components  
12.0  
11.5  
11.0  
12.0  
11.5  
11.0  
o
o
o
–40  
+25  
+85  
C
C
C
4.75 V  
5.00 V  
5.25 V  
10.5  
10.0  
9.5  
10.5  
10.0  
9.5  
9.0  
8.5  
9.0  
8.5  
8.0  
7.5  
8.0  
7.5  
7.0  
7.0  
328  
336  
344  
352  
360  
368  
376  
384  
328  
336  
344  
352  
360  
368  
376  
384  
RF Frequency (MHz)  
RF Frequency (MHz)  
Figure 4. Mixer A Gain vs. Frequency and Temperature  
Figure 3. Mixer A Gain vs. Frequency and Supply Voltage  
12.0  
12.0  
–3 dBm  
0 dBm  
+3 dBm  
4.75 V  
5.00 V  
5.25 V  
11.5  
11.0  
11.5  
11.0  
10.5  
10.0  
9.5  
10.5  
10.0  
9.5  
9.0  
8.5  
9.0  
8.5  
8.0  
7.5  
8.0  
7.5  
7.0  
7.0  
328  
336  
344  
352  
360  
368  
376  
384  
328  
336  
344  
352  
360  
368  
376  
384  
RF Frequency (MHz)  
RF Frequency (MHz)  
Figure 6. Mixer B Gain vs. Frequency and Supply Voltage  
Figure 5. Mixer A Gain vs. Frequency and LO Power  
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com  
200884F • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • April 3, 2009  
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DATA SHEET • SKY73084-11 DOWNCONVERSION MIXER  
12.0  
11.5  
11.0  
12.0  
11.5  
11.0  
o
o
o
–40  
+25  
+85  
C
C
C
–3 dBm  
0 dBm  
+3 dBm  
10.5  
10.0  
9.5  
10.5  
10.0  
9.5  
9.0  
8.5  
9.0  
8.5  
8.0  
7.5  
8.0  
7.5  
7.0  
7.0  
328  
336  
344  
352  
360  
368  
376  
384  
328  
336  
344  
352  
360  
368  
376  
384  
RF Frequency (MHz)  
RF Frequency (MHz)  
Figure 7. Mixer B Gain vs. Frequency and Temperature  
Figure 8. Mixer B Gain vs. Frequency and LO Power  
15  
14  
13  
15  
14  
13  
4.75 V  
5.00 V  
5.25 V  
o
o
o
–40  
+25  
+85  
C
C
C
12  
11  
12  
11  
10  
10  
9
9
8
8
7
6
5
7
6
5
328  
336  
344  
352  
360  
368  
376  
384  
328  
336  
344  
352  
360  
368  
376  
384  
RF Frequency (MHz)  
RF Frequency (MHz)  
Figure 10. Mixer A Noise Figure vs Frequency and Temperature  
Figure 9. Mixer A Noise Figure vs Frequency and Supply Voltage  
15  
15  
14  
13  
4.75 V  
5.00 V  
5.25 V  
–3 dBm  
0 dBm  
+3 dBm  
14  
13  
12  
11  
10  
12  
11  
10  
9
8
9
8
7
6
7
6
5
5
328  
336  
344  
352  
360  
368  
376  
384  
328  
336  
344  
352  
360  
368  
376  
384  
RF Frequency (MHz)  
RF Frequency (MHz)  
Figure 12. Mixer B Noise Figure vs Frequency and Supply Voltage  
Figure 11. Mixer A Noise Figure vs Frequency and LO Power  
15  
15  
o
o
o
–40  
+25  
+85  
C
C
C
14  
13  
–3 dBm  
0 dBm  
+3 dBm  
14  
13  
12  
11  
10  
12  
11  
10  
9
8
9
8
7
6
7
6
5
5
328  
336  
344  
352  
360  
368  
376  
384  
328  
336  
344  
352  
360  
368  
376  
384  
RF Frequency (MHz)  
RF Frequency (MHz)  
Figure 13. Mixer B Noise Figure vs Frequency and Temperature  
Figure 14. Mixer B Noise Figure vs Frequency and LO Power  
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com  
April 3, 2009 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 200884F  
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DATA SHEET • SKY73084-11 DOWNCONVERSION MIXER  
30  
29  
28  
30  
29  
28  
o
o
o
–40  
+25  
+85  
C
C
C
4.75 V  
5.00 V  
5.25 V  
27  
26  
25  
27  
26  
25  
24  
23  
24  
23  
22  
21  
22  
21  
20  
20  
328  
336  
344  
352  
360  
368  
376  
384  
328  
336  
344  
352  
360  
368  
376  
384  
RF Frequency (MHz)  
RF Frequency (MHz)  
Figure 16. Mixer A IIP3 vs Frequency and Temperature  
Figure 15. Mixer A IIP3 vs Frequency and Supply Voltage  
30  
30  
–3 dBm  
0 dBm  
+3 dBm  
29  
28  
4.75 V  
5.00 V  
5.25 V  
29  
28  
27  
26  
25  
27  
26  
25  
24  
23  
24  
23  
22  
21  
22  
21  
20  
20  
328  
336  
344  
352  
360  
368  
376  
384  
328  
336  
344  
352  
360  
368  
376  
384  
RF Frequency (MHz)  
RF Frequency (MHz)  
Figure 18. Mixer B IIP3 vs Frequency and Supply Voltage  
Figure 17. Mixer A IIP3 vs Frequency and LO Power  
30  
30  
29  
28  
o
o
o
–3 dBm  
–40  
+25  
+85  
C
C
C
29  
0 dBm  
28  
+3 dBm  
27  
26  
25  
27  
26  
25  
24  
23  
24  
23  
22  
21  
22  
21  
20  
20  
328  
336  
344  
352  
360  
368  
376  
384  
328  
336  
344  
352  
360  
368  
376  
384  
RF Frequency (MHz)  
RF Frequency (MHz)  
Figure 20. Mixer B IIP3 vs Frequency and LO Power  
Figure 19. Mixer B IIP3 vs Frequency and Temperature  
–60  
–61  
–62  
–60  
o
o
o
–40  
+25  
+85  
C
C
C
–61  
–62  
–63  
–64  
–63  
–64  
–65  
–66  
–67  
–65  
–66  
–67  
o
o
o
–40  
+25  
+85  
C
C
C
–68  
–69  
–68  
–69  
–70  
–70  
70  
75  
80  
85  
90  
95  
100  
105  
110  
115  
70  
75  
80  
85  
90  
95  
100  
105  
110  
115  
IF Frequency (MHz)  
IF Frequency (MHz)  
Figure 22. Mixer B 2RF–2LO vs IF Frequency and Temperature  
Figure 21. Mixer A 2RF–2LO vs IF Frequency and Temperature  
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com  
200884F • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • April 3, 2009  
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DATA SHEET • SKY73084-11 DOWNCONVERSION MIXER  
90  
87  
84  
90  
o
o
o
o
o
o
–40  
+25  
+85  
C
C
C
–40  
+25  
+85  
C
C
C
87  
84  
81  
81  
78  
78  
75  
75  
72  
69  
72  
69  
66  
66  
63  
63  
60  
60  
4.75  
5.00  
5.25  
4.75  
5.00  
5.25  
Supply Voltage (V)  
Supply Voltage (V)  
Figure 23. Mixer A RF to IF Isolation vs Supply Voltage and  
Temperature  
Figure 24. Mixer B RF to IF Isolation vs Supply Voltage and  
Temperature  
–30  
–30  
o
o
o
o
o
o
–40  
+25  
+85  
C
C
C
–32  
–34  
–36  
–40  
+25  
+85  
C
C
C
–32  
–34  
–36  
–38  
–40  
–38  
–40  
–42  
–44  
–46  
–42  
–44  
–46  
–48  
–50  
–48  
–50  
70  
75  
80  
85  
90  
95  
100  
105  
110  
115  
70  
75  
80  
85  
90  
95  
100  
105  
110  
115  
IF Frequency (MHz)  
IF Frequency (MHz)  
Figure 25. Mixer A LO to IF Leakage vs IF Frequency and  
Temperature  
Figure 26. Mixer B LO to IF Leakage vs IF Frequency and  
Temperature  
–30  
–30  
o
o
o
–40  
+25  
+85  
C
C
C
–32  
–34  
–36  
o
o
o
–40  
+25  
+85  
C
C
C
–32  
–34  
–36  
–38  
–40  
–38  
–40  
–42  
–44  
–46  
–42  
–44  
–46  
–48  
–50  
–48  
–50  
70  
75  
80  
85  
90  
95  
100  
105  
110  
115  
70  
75  
80  
85  
90  
95  
100  
105  
110  
115  
IF Frequency (MHz)  
IF Frequency (MHz)  
Figure 28. Mixer B LO to RF Leakage vs IF Frequency and  
Temperature  
Figure 27. Mixer A LO to RF Leakage vs IF Frequency and  
Temperature  
50  
–90  
o
o
o
o
o
o
–40  
C
C
C
–40  
C
C
C
48  
46  
–93  
–96  
+25  
+25  
+85  
+85  
44  
–99  
42  
40  
–102  
–105  
38  
36  
34  
–108  
–111  
–114  
32  
30  
–117  
–120  
4.75  
5.00  
5.25  
4.75  
5.00  
5.25  
Supply Voltage (V)  
Supply Voltage (V)  
Figure 30. Mixer A 4RF to 3LO vs Supply Voltage and Temperature  
Figure 29. Channel A to Channel B IF Isolation vs Supply Voltage  
and Temperature  
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DATA SHEET • SKY73084-11 DOWNCONVERSION MIXER  
–90  
o
o
o
–40  
+25  
+85  
C
C
C
–93  
–96  
–99  
–102  
–105  
–108  
–111  
–114  
–117  
–120  
4.75  
5.00  
5.25  
Supply Voltage (V)  
Figure 31. Mixer B 4RF to 3LO vs Supply Voltage and Temperature  
Evaluation Board Description  
Package Dimensions  
The SKY73084-11 Evaluation Board is used to test the  
The PCB layout footprint for the SKY73084-11 is provided in  
Figure 35. Figure 36 shows the package dimensions for the  
36-pin MCM and Figure 37 provides the tape and reel  
dimensions.  
performance of the SKY73084-11 downconversion mixer. An  
assembly drawing for the Evaluation Board is shown in Figure 32  
and the layer detail is provided in Figure 33. A schematic diagram  
of the SKY73084-11 Evaluation Board is shown in Figure 34.  
Package and Handling Information  
Circuit Design Configurations  
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 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 as possible.  
2. The ground pad of the SKY73084-11 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 device. Therefore, design the connection to the  
ground pad to dissipate the maximum wattage produced by  
the circuit board.  
THE SKY73084-11 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 MCM-L  
Packages, document number 101752.  
3. Skyworks recommends including external bypass capacitors  
on the VCC voltage inputs of the device.  
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.  
4. Components L5, L6, L14, and L15 (see Figure 34) are high-Q  
low loss inductors. These inductors must be able to pass  
currents in excess of 200 mA DC.  
5. Components R1 and R2 (see Figure 34) set the bias current  
for the IF amplifiers. Skyworks recommends that these  
resistors have a tolerance of ±1% to optimize performance  
consistency of the SKY73084-11. These resistors are not  
required for the Evaluation Board to operate as specified in  
Tables 3 and 4.  
Electrostatic Discharge (ESD) Sensitivity  
The SKY73084-11 is a static-sensitive electronic device. Do not  
operate or store near strong electrostatic fields. Take proper ESD  
precautions.  
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DATA SHEET • SKY73084-11 DOWNCONVERSION MIXER  
J9  
J5  
C34  
L16  
C35  
R4  
C29  
C28  
L12  
L17  
C38  
L13  
C33  
C25  
L11  
T2  
J4  
J8  
C32  
L1  
C24  
C39  
R2  
C26  
C2  
L2  
C3  
L14  
L15  
C27  
R5  
C1  
C23  
C20  
C22  
C4  
C21  
J1  
J2  
C5  
C8  
C17  
C7  
L4  
R1  
R6  
C14  
C13  
C41  
L5  
L6  
C40  
C18  
C6  
L3  
L10  
C11  
C12  
R3  
T1  
J3  
C19  
J7  
L18  
L19  
L8  
L9  
C16  
C36  
C37  
C15  
J10  
J6  
S905  
Figure 32. SKY73084-11 Evaluation Board Assembly Diagram  
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DATA SHEET • SKY73084-11 DOWNCONVERSION MIXER  
Layer 1: Top -- Metal  
Layer 2: Ground  
Layer 3: Power Plane  
Layer 4: Solid Ground Plane  
S904  
Figure 33. SKY77024 Evaluation Board Layer Detail  
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DATA SHEET • SKY73084-11 DOWNCONVERSION MIXER  
R4  
0 Ω  
DB714  
L13  
39 nH  
L12  
0 Ω  
L14  
470 nH  
J5  
T2  
C28  
33 pF  
L15  
470 nH  
VCC  
C26  
1 μF  
C27  
33 pF  
VCC  
R2  
DNI  
VCC  
36  
35 34 33 32 31 30 29 28  
L1  
L11  
0 Ω  
L2  
C1  
J8  
J4  
0 Ω  
5.1 pF  
0 Ω  
27  
26  
1
2
3
4
LO2  
GND  
RFA  
C23  
33 pF  
C2  
27 nH  
x
NC  
25  
24  
23  
GND  
Element Jumper  
GND  
VCC1  
GND  
VCC2  
GND  
NC  
VCC  
VCC  
VCC  
GND  
C22  
12 pF  
C35  
5
6
7
8
9
33 pF  
SKY73084  
C20  
1 μF  
LO_SEL  
GND  
22  
21  
VCC5  
GND  
C21  
33 pF  
20  
19  
L4  
5.1 pF  
C8  
0 Ω  
x
L3  
0 Ω  
J7  
J3  
RFB  
LO1  
L10  
0 Ω  
C17  
33 pF  
C6  
27 nH  
10  
11 12 13 14 15 16 17 18  
R1  
DNI  
VCC  
L5  
470 nH  
VCC  
C13  
1 μF  
C14  
33 pF  
L9  
0 Ω  
J6  
VCC  
L6  
470 nH  
L8  
39 nH  
C16  
33 pF  
T1  
DB714  
R3  
0 Ω  
Note: The SKY73084 Evaluation Board can be converted to  
provide a differential output by removing components  
T1, T2, R3, and R4.  
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.  
S1237  
Figure 34. SKY73084-11 Evaluation Board Schematic  
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DATA SHEET • SKY73084-11 DOWNCONVERSION MIXER  
6.3  
0.4  
Component Outline  
0.25  
0.075  
0.075  
0.15  
0.75 0.9  
12X 0.062  
Stencil and  
Metallization  
6.3  
36X 0.875  
Component Outline  
Soldermask Opening  
24X 0.125  
SMT Pad Detail  
Scale: 2X  
9X This Rotation  
Stencil aperture size for center  
ground pads should be 80% to  
100% (by area) of the solder  
mask opening of the package.  
o
9X Rotated 180  
o
9X Rotated 90 CW  
o
9X Rotated 90 CCW  
12X 0.063  
24X 0.125  
36X 0.875  
Stencil Aperture  
Top View  
6.3  
6.45  
Pin 36  
Pin 1  
2X 2.775  
2X 2.775  
6.45  
3.88  
6.3  
0.5  
Pitch  
Typ  
Component Outline  
Component Outline  
Thermal Via Array.  
0.25 Typ  
Solder Mask Opening  
Top View  
0.3 mm on 0.6 mm pitch.  
Additional vias in common ground  
pad will improve thermal and electrical  
performance. NOTE: thermal vias  
should be tented and filled with solder  
Metallization  
Top View  
mask, 30-35 μm Cu plating recommended.  
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 35. PCB Layout Footprint for the SKY73084-11 6 x 6 mm MCM  
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DATA SHEET • SKY73084-11 DOWNCONVERSION MIXER  
18X 2.9  
4X 2  
4X 1.5  
Pin 1 Indicator  
Pin 36  
6
Pin 1 Indicator  
(See Detail D)  
Pin 1  
B
C
4X 0.5  
4X 1  
A
4X 2  
4X 1.5  
4X 1  
6
4X 0.5  
2X 1.9  
18X 2.9  
36x SMT Pad  
0.15 A B C  
3X R0.2  
1.1 0.1  
A
2X 1.9  
0.1  
0.15 A B C  
Solder Mask Opening  
0.2 A B C  
Top View  
Side View  
Bottom View  
0.5 0.1  
0.2 x 0.2  
(0.1)  
0.25 0.05  
0.4 0.05  
Detail D  
Metal Pad Edge  
Detail A  
All measurements are in millimeters  
Pads are solder mask defined on one edge and metal  
defined on three edges.  
Dimensioning and tolerancing according to ASME Y14.5M-1994  
S689_A  
Figure 36. SKY73084-11 36-Pin MCM Package Dimensions  
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DATA SHEET • SKY73084-11 DOWNCONVERSION MIXER  
2.00 0.05  
4.00  
8.00  
1.50 0.10  
0.30 0.02  
B
1.75 0.10  
Pin #1 Indicator  
(see Notes)  
A
A
7o Max.  
B
1.50 Min.  
1.59  
6.35  
B
8o 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  
5. Pin 1 orientation is in top left corner for the following Skyworks products:  
A
SKY73022-21, -31  
SKY73023-21, -31  
For all other 6 x 6 mm MCM/RFLGA products, pin 1 orientation is  
in top right corner.  
S1183  
Figure 37. SKY73084-11 Tape and Reel Dimensions  
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DATA SHEET • SKY73084-11 DOWNCONVERSION MIXER  
Ordering Information  
Model Name  
Manufacturing Part Number  
SKY73084-11 (Pb-free package)  
Evaluation Kit Part Number  
TW17-D570  
SKY73084-11 300-500 MHz Downconversion Mixer  
Copyright © 2008, 2009 Skyworks Solutions, Inc. All Rights Reserved.  
Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. These materials, including the information contained herein, are provided by  
Skyworks as a service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or omissions in these materials or the  
information contained herein. Skyworks may change its documentation, products, services, specifications or product descriptions at any time, without notice. Skyworks makes no commitment to  
update the materials or information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from any future changes.  
No license, whether express, implied, by estoppel or otherwise, is granted to any intellectual property rights by this document. Skyworks assumes no liability for any materials, products or  
information provided hereunder, including the sale, distribution, reproduction or use of Skyworks products, information or materials, except as may be provided in Skyworks Terms and Conditions  
of Sale.  
THE MATERIALS, PRODUCTS AND INFORMATION ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING FITNESS FOR A  
PARTICULAR PURPOSE OR USE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHT; ALL SUCH WARRANTIES ARE HEREBY EXPRESSLY  
DISCLAIMED. SKYWORKS DOES NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE MATERIALS. SKYWORKS  
SHALL NOT BE LIABLE FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO ANY SPECIAL, INDIRECT, INCIDENTAL, STATUTORY, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION,  
LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM THE USE OF THE MATERIALS OR INFORMATION, WHETHER OR NOT THE RECIPIENT OF MATERIALS HAS BEEN ADVISED OF THE  
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.  
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