DATA SHEET
SKY73422-11: 1700 to 2700 MHz Broadband, Application
Configurable High Gain and Linearity Diversity
Downconversion Mixer
Applications
IFA+
2G/3G/4G base station transceivers:
GSM/EDGE, CDMA, UMTS/WCDMA, LTE
Land mobile radio
High performance radio links
IFA–
RLOA
BS0
RIFA
BS1
RFA
Features
LO
Operating frequency range: 1700 to 2700 MHz
IF frequency range: 100 to 400 MHz
Conversion gain: +9 dB
Input IP3: up to +28 dBm
Output IP3: up to +37 dBm
Noise Figure: 8.9 dB
Power-down mode
Integrated LO drivers
Integrated low loss RF baluns
High linearity IF amplifiers
Application tuneability
Small, QFN (36-pin, 6 x 6 mm) package (MSL3, 260 C per
JEDEC J-STD-020)
Skyworks Green™ products are compliant with
all applicable legislation and are halogen-free.
For additional information, refer to Skyworks
Definition of Green™, document number
SQ04-0074.
RFB
PWRDN
RIFB
IFB+
IFB–
RLOB
S2760
Figure 1. SKY73422-11 Block Diagram
Description
The SKY73422-11 is a fully integrated diversity mixer that
includes Local Oscillator (LO) drivers, 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 SKY73422-11 features an IIP3 of +28 dBm and a Noise
Figure (NF) of 8.9 dB, making the device an ideal solution for high
dynamic range systems such as 2G/3G/4G base station receivers.
The SKY73422-11 has been designed for optimum long-term
reliability. The SKY73422-11 diversity downconversion mixer is
provided in a compact, 36-pin Quad Flat No-Lead (QFN) package.
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.
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VCC_RFA
RIFA
N/C
IFA–
IFA+
N/C
VCC_IFA
RLOA
N/C
DATA SHEET • SKY73422-11 DOWNCONVERSION MIXER
36
35
34
33
32
31
30
29
28
RFA
1
27
N/C
GND
2
26
N/C
GND
3
25
BS1
VCC_LO
4
24
BS0
Ground Pad
GND
RFB
9
19
LO
10
11
12
13
14
15
16
17
18
N/C
VCC_LOIN
20
RLOB
21
8
N/C
7
GND
VCC_IFB
GND
IFB–
PWRDN
IFB+
N/C
22
N/C
23
6
RIFB
5
VCC_RFB
N/C
VCC_LO
S2761
Figure 2. SKY73422-11 Pinout – 36-Pin QFN
(Top View)
Table 1. SKY73422-11 Signal Descriptions
Pin
1
Name
RFA
Description
RF channel A input
Pin
19
Name
LO
Description
Local oscillator input
2
GND
Ground
20
GND
Ground
3
GND
Ground
21
VCC_LOIN
DC supply, +5 V
4
VCC_LO
DC supply, +5 V
22
PWRDN
Power-down mode enable
5
N/C
No internal connection
23
N/C
No internal connection
6
VCC_LO
DC supply, +5 V
24
BS0
Band select 0 control
7
GND
Ground
25
BS1
Band select 1 control
8
GND
Ground
26
N/C
No internal connection
9
RFB
RF channel B input
27
N/C
No internal connection
10
VCC_RFB
DC supply, +5 V
28
N/C
No internal connection
11
RIFB
IF channel B bias control
29
RLOA
LO channel A bias control
12
N/C
No internal connection
30
VCC_IFA
DC supply, +5 V
13
IFB+
IF channel B positive output
31
N/C
No internal connection
14
IFB–
IF channel B negative output
32
IFA+
IF channel A positive output
15
N/C
No internal connection
33
IFA–
IF channel A negative output
16
VCC_IFB
DC supply, +5 V
34
N/C
No internal connection
17
RLOB
LO channel B bias control
35
RIFA
IF channel A bias control
18
N/C
No internal connection
36
VCC_RFA
DC supply, +5 V
–
Ground pad
Bottom ground pad (Note 1)
Note 1: Bottom ground pad serves as a key electrical and thermal ground.
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DATA SHEET • SKY73422-11 DOWNCONVERSION MIXER
Functional Description
LO Buffers
The SKY73422-11 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.
The LO buffers allow the input power of the SKY73422-11 to be
driven in the range of –6 to +6 dBm. The LO section has been
optimized for center frequencies of 2100 to 2550 MHz. However,
the LO can be driven over a wide frequency range with only slight
degradation in performance.
The SKY73422-11 also includes a power-down feature used to
lower the supply current for standby operation (refer to Tables 4
and 5):
PWRDN Logic:
Mixer State:
High
Standby (low power mode)
Low
Full operation
LO amplifiers are also included that allow the SKY73422-11 to
connect directly to the output of a Voltage Controlled Oscillator
(VCO). This eliminates the extra gain stages needed by most
discrete passive mixers.
RF Baluns and Passive Mixer
The RF baluns provide a single ended input, which can easily be
matched to 50 Ω using a simple matching circuit. The RF baluns
offer very low loss and excellent amplitude and phase balance
over a wide frequency range of 1700 to 2700 MHz.
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.
Bandselect Logic
Pins 17 (RLOB) and 29 (RLOA) allow for external biasing of the LO
driver bias currents to trade off linearity for the core passive mixer
current.
Power-Down Mode
The SKY73422-11 also includes a low current power-down mode
controlled by pin 22 (PWRDN). When this pin is at a logic high
level, the power-down function is enabled with the total mixer
current under 45 mA. PWRDN does not have an internal pull-up or
pull-down.
IF Amplifier
The SKY73422-11 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.
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 100 and 400 MHz. The IF amplifiers
can be operated outside of this range, but with a slight
degradation in performance.
Pins 11 (RIFB) and 35 (RIFA) allow for external biasing of the IF
amplifier bias currents to trade off linearity for the IF amplifier
current.
The SKY73422-11 is designed to optimize performance in four
sub-bands. The particular sub-band of interest is selected by
setting pin 24 (BS0) and pin 25 (BS1). The bandselect logic is
provided in Table 2.
Electrical and Mechanical Specifications
Depending on the LO injection side, and the RF and IF frequencies
involved, there could be multiple bandselect solutions. Table 5
identifies recommended bandselects for a number of frequency
ranges.
The absolute maximum ratings of the SKY73422-11 are provided
in Table 3. The recommended operating conditions are specified
in Table 4 and electrical specifications are provided in Tables 5
and 6.
Table 2. SKY73422-11 Bandselect Logic
BS1
(Pin 25)
BS0
(Pin 24)
LO Center Frequency
(MHz)
0
0
2150
0
1
2200
1
0
2350
1
1
2500
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DATA SHEET • SKY73422-11 DOWNCONVERSION MIXER
Table 3. SKY73422-11 Absolute Maximum Ratings (Note 1)
Parameter
Symbol
Supply voltage, +5 V (VCC_LO, VCC_RFA, VCC_RFB, VCC_IFA,
VCC_IFB, VCC_LOIN)
VCC
Total supply current
ICC
Minimum
Maximum
Units
4.5
5.5
V
360
mA
RF input power
PRF
+20
dBm
LO input power
PLO
+20
dBm
Operating case temperature
TC
+100
C
Junction temperature
TJ
Storage case temperature
TSTG
Thermal resistance
ΘJC
Electrostatic discharge:
ESD
–40
–40
Charged Device Model (CDM), Class 3
Human Body Model (HBM), Class 1C
Machine Model (MM), Class A
+125
C
+150
C
10.4
C/W
500
1000
50
V
V
V
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. Exceeding any of the limits listed here may result in permanent damage to the device.
CAUTION: Although this device is designed to be as robust as possible, Electrostatic Discharge (ESD) can damage this device. This device
must be protected at all times from ESD. Static charges may easily produce potentials of several kilovolts on the human body
or equipment, which can discharge without detection. Industry-standard ESD precautions should be used at all times.
Table 4. SKY73422-11 Recommended Operating Conditions
Maximum
Units
RF frequency range
Parameter
fRF
Symbol
Minimum
1700
Typical
2700
MHz
LO frequency range
fLO
2000
2550
MHz
IF frequency range
fIF
100
400
MHz
Supply voltage, +5 V
VCC
4.75
5.00
5.25
V
Supply current (Note 1), PWRDN = 0 V
ICC
LO input power
PLO
–6
0
+6
dBm
Logic levels (Note 2):
high
low
VIN_H
VIN_L
VCC
0.74
V
V
Logic input current
IL
Operating case temperature (Note 3)
TC
See Table 5
1.09
0
mA
0
–40
mA
+100
Note 1: See Table 7 for external biasing and matching components.
Note 2: Logic signals are: PWRDN, BS0, and BS1. Valid logic levels must be applied. There are no internal pull-ups or pull-downs.
Note 3: Case temperature measured at bottom of package where device is soldered to board.
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DATA SHEET • SKY73422-11 DOWNCONVERSION MIXER
Table 5. SKY73422-11 Electrical Specifications: General (1 of 4) (Note 1)
(VCC = 4.75 to 5.25 V, TC = –40 to +100 C, PLO = –3 to +3 dBm, PWRDN = Logic “0,” Unless Otherwise Noted)
Test Condition
Parameter
Conversion gain
Noise Figure
3rd Order Input
Intercept Point
Input 1 dB
compression
point
Symbol
G
NF
IIP3
IP1dB
Min
Typical
1
7.0
9.3
dB
1
1
7.0
8.9
dB
1
1
7.0
9.0
dB
200
1
1
7.0
8.6
dB
low side
350
0
1
7.0
8.7
dB
2496 to 2690
low side
200
1
1
7.0
8.8
dB
2496 to 2690
low side
350
1
1
5.9
8.0
dB
1710 to 1785
high side
350
1
1
8.9
11.0
dB
1850 to 1920
high side
350
1
1
9.2
11.0
dB
1920 to 1980
high side
350
1
1
9.4
11.3
dB
2300 to 2400
low side
200
1
1
9.3
11.0
dB
2300 to 2400
low side
350
0
1
9.4
11.0
dB
2496 to 2690
low side
200
1
1
9.4
11.0
dB
2496 to 2690
low side
350
1
1
9.9
12.2
dB
RF Freq
Range (MHz)
LO
Injection
IF Freq
(MHz)
BS1
BS0
1710 to 1785
high side
350
1
1850 to 1920
high side
350
1920 to 1980
high side
350
2300 to 2400
low side
2300 to 2400
Max
Units
1710 to 1785
high side
350
1
1
+25.0
+26.0
dBm
1850 to 1920
high side
350
1
1
+23.8
+25.2
dBm
1920 to 1980
high side
350
1
1
+24.5
+25.8
dBm
2300 to 2400
low side
200
1
1
+26.5
+27.6
dBm
2300 to 2400
low side
350
0
1
+25.8
+28.0
dBm
2496 to 2690
low side
200
1
1
+24.7
+26.5
dBm
2496 to 2690
low side
350
1
1
+25.8
+27.6
dBm
1710 to 1785
high side
350
1
1
+10.5
+12.9
dBm
1850 to 1920
high side
350
1
1
+10.5
+12.5
dBm
1920 to 1980
high side
350
1
1
+10.5
+13.1
dBm
2300 to 2400
low side
200
1
1
+10.5
+12.7
dBm
2300 to 2400
low side
350
0
1
+10.5
+13.0
dBm
2496 to 2690
low side
200
1
1
+10.5
+12.9
dBm
2496 to 2690
low side
350
1
1
+10.5
+13.5
dBm
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DATA SHEET • SKY73422-11 DOWNCONVERSION MIXER
Table 5. SKY73422-11 Electrical Specifications: General (2 of 4) (Note 1)
(VCC = 4.75 to 5.25 V, TC = –40 to +100 C, PLO = –3 to +3 dBm, PWRDN = Logic “0,” Unless Otherwise Noted)
Test Condition
Parameter
2RF – 2LO
(Note 3) (Note 4)
3RF – 3LO
(Note 3)
1xLO to RF
leakage
(measured @
LO)
2xLO to RF
leakage
(measured @
2xLO)
Symbol
2x2
3x3
1xLORF
2xLORF
Typical
Max
Units
1
–66
–63
dBc
1
1
–66
–63
dBc
1
1
–68
–63
dBc
200
1
1
–68
–63
dBc
low side
350
1
1
–68
–63
dBc
2496 to 2690
low side
200
1
1
–69
–63
dBc
2496 to 2690
low side
350
1
1
–69
–63
dBc
1710 to 1785
high side
350
1
1
–78
–70
dBc
1850 to 1920
high side
350
1
1
–80
–70
dBc
1920 to 1980
high side
350
1
1
–82
–70
dBc
2300 to 2400
low side
200
1
1
–86
–70
dBc
2300 to 2400
low side
350
1
1
–95
–70
dBc
2496 to 2690
low side
200
1
1
–77
–70
dBc
2496 to 2690
low side
350
1
1
–81
–70
dBc
RF Freq
Range (MHz)
LO
Injection
1710 to 1785
Min
IF Freq
(MHz)
BS1
BS0
high side
350
1
1850 to 1920
high side
350
1920 to 1980
high side
350
2300 to 2400
low side
2300 to 2400
1710 to 1785
high side
350
1
1
–42
–35
dBm
1850 to 1920
high side
350
1
1
–44
–39
dBm
1920 to 1980
high side
350
1
1
–45
–39
dBm
2300 to 2400
low side
200
1
1
–41
–37
dBm
2300 to 2400
low side
350
0
1
–41
–35
dBm
2496 to 2690
low side
200
1
1
–43
–36
dBm
2496 to 2690
low side
350
1
1
–43
–37
dBm
1710 to 1785
high side
350
1
1
–28
–25
dBm
1850 to 1920
high side
350
1
1
–29
–25
dBm
1920 to 1980
high side
350
1
1
–29
–25
dBm
2300 to 2400
low side
200
1
1
–29
–25
dBm
2300 to 2400
low side
350
0
1
–27
–25
dBm
2496 to 2690
low side
200
1
1
–29
–25
dBm
2496 to 2690
low side
350
1
1
–30
–25
dBm
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Table 5. SKY73422-11 Electrical Specifications: General (3 of 4) (Note 1)
(VCC = 4.75 to 5.25 V, TC = –40 to +100 C, PLO = –3 to +3 dBm, PWRDN = Logic “0,” Unless Otherwise Noted)
Test Condition
Parameter
3xLO to RF
leakage
(measured @
3xLO)
4xLO to RF
leakage
(measured @
4xLO)
LO to IF
(leakage
measured @ LO)
RF to IF
(isolation
measured @ RF)
Symbol
3xLORF
4xLORF
LO-IF
RF-IF
Typical
Max
Units
1
–47
–37
dBm
1
1
–50
–38
dBm
1
1
–47
–35
dBm
200
1
1
–49
–40
dBm
low side
350
1
1
–45
–41
dBm
2496 to 2690
low side
200
1
1
–41
–28
dBm
2496 to 2690
low side
350
1
1
–54
–33
dBm
1710 to 1785
high side
350
1
1
–26
–21
dBm
1850 to 1920
high side
350
1
1
–24
–19
dBm
1920 to 1980
high side
350
1
1
–24
–19
dBm
2300 to 2400
low side
200
1
1
–25
–17
dBm
2300 to 2400
low side
350
1
1
–24
–18
dBm
2496 to 2690
low side
200
1
1
–23
–17
dBm
2496 to 2690
low side
350
1
1
–23
–18
dBm
1710 to 1785
high side
350
1
1
–81
–57
dBm
1850 to 1920
high side
350
1
1
–68
–57
dBm
1920 to 1980
high side
350
1
1
–66
–59
dBm
2300 to 2400
low side
200
1
1
–66
–60
dBm
2300 to 2400
low side
350
1
1
–79
–69
dBm
2496 to 2690
low side
200
1
1
–64
–53
dBm
2496 to 2690
low side
350
1
1
–70
–57
dBm
1710 to 1785
high side
350
1
1
54
42
dB
1850 to 1920
high side
350
1
1
61
53
dB
1920 to 1980
high side
350
1
1
64
55
dB
2300 to 2400
low side
200
1
1
67
60
dB
2300 to 2400
low side
350
1
1
68
53
dB
2496 to 2690
low side
200
1
1
75
69
dB
2496 to 2690
low side
350
1
1
60
54
dB
RF Freq
Range (MHz)
LO
Injection
1710 to 1785
Min
IF Freq
(MHz)
BS1
BS0
high side
350
1
1850 to 1920
high side
350
1920 to 1980
high side
350
2300 to 2400
low side
2300 to 2400
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DATA SHEET • SKY73422-11 DOWNCONVERSION MIXER
Table 5. SKY73422-11 Electrical Specifications: General (4 of 4) (Note 1)
(VCC = 4.75 to 5.25 V, TC = –40 to +100 C, PLO = –3 to +3 dBm, PWRDN = Logic “0,” Unless Otherwise Noted)
Test Condition
Parameter
Channel to
channel
(isolation
measured @ IF)
Operating
current (on)
Operating
current (off)
(Note 2)
Symbol
Ch-Ch
ICC_ON
ICC_OFF
Min
Typical
1
62
69
dB
1
1
54
66
dB
1
1
63
68
dB
200
1
1
53
60
dB
low side
350
1
1
50
58
dB
2496 to 2690
low side
200
1
1
54
58
dB
2496 to 2690
low side
350
1
1
52
58
dB
1710 to 1785
high side
350
1
1
294
320
mA
1850 to 1920
high side
350
1
1
284
310
mA
1920 to 1980
high side
350
1
1
300
350
mA
2300 to 2400
low side
200
1
1
303
330
mA
2300 to 2400
low side
350
0
1
304
330
mA
2496 to 2690
low side
200
1
1
305
340
mA
2496 to 2690
low side
350
1
1
300
330
mA
1710 to 1785
high side
350
1
1
38
44
mA
1850 to 1920
high side
350
1
1
36
44
mA
1920 to 1980
high side
350
1
1
38
44
mA
2300 to 2400
low side
200
1
1
38
44
mA
2300 to 2400
low side
350
0
1
38
44
mA
2496 to 2690
low side
200
1
1
38
44
mA
2496 to 2690
low side
350
1
1
38
44
mA
RF Freq
Range (MHz)
LO
Injection
IF Freq
(MHz)
BS1
BS0
1710 to 1785
high side
350
1
1850 to 1920
high side
350
1920 to 1980
high side
350
2300 to 2400
low side
2300 to 2400
Max
Units
Note 1: Performance is guaranteed only under the conditions listed in this Table. Production tested: RF frequency = 1900 MHz, LO frequency= 2250 MHz, unless otherwise stated. Testing
conducted with balun on IF output (see Figure 5), performance is of the DUT, with balun loss de-embedded.
Input matching can be unique for each bandselect setting.
Conditions for typical values: VCC = 5 V, TC = +35 C, PLO = 0 dBm, middle of RF range.
See Table 7 for external biasing and matching components.
Note 2: PWRDN pin = logic “1.”
Note 3: The 2x2 interferer RF frequency is set to create IF/2. The 3x3 interferer RF frequency is set to create IF/3. The interferer tone is –10 dBm.
Note 4: Guaranteed by design and characterization.
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DATA SHEET • SKY73422-11 DOWNCONVERSION MIXER
Table 6. SKY73422-11 Electrical Specifications (Note 1)
(VCC = 4.75 to 5.25 V, TC = –40 to +100 C, PLO = –3 to +3 dBm, PWRDN = Logic “0,” PRF = –10 dBm, fIF = 200 MHz,
Unless Otherwise Noted)
Parameter
Symbol
Noise Figure with a blocker signal (Note 2)
NFBLK
Power-up time (Note 2) (Note 3)
tON
Test Condition
Min
Typical
Max
23
Blocking signal input
power = +8 dBm,
10 MHz offset
Units
dB
0.02
1
μs
0.16
1
μs
Power-down time (Note 2) (Note 4)
tOFF
RF port input return loss (Note 2)
ZIN_RF
With external dc-blocking
cap. Matching can be
improved with external
components.
12
dB
LO port input return loss (Note 2)
ZIN_LO
With external dc-blocking
cap. Matching can be
improved with external
components.
5
dB
IF port input return loss (Note 2)
ZOUT_IF
With external matching
components
14
dB
Note 1: Performance is guaranteed only under the conditions listed in this Table. Production tested: RF frequency = 1880 MHz, LO frequency= 1680 MHz. All others guaranteed by design and
characterization. Testing conducted with balun on IF output (see Figure 5). Table 1 performance is of the DUT, with balun loss de-embedded.
Input matching can be unique for each bandselect setting.
Conditions for typical values: VCC = 5 V, TC = +35 C, PLO = 0 dBm, middle of RF range.
See Table 7 for external biasing and matching components.
Note 2: Not production tested. Guaranteed by design and characterization.
Note 3: Time required for IF envelope to reach 97.5% of final value following a PWRDN transition to logic “0” with tFALL < 1 ns.
Note 4: Time required for total supply current to be less than 53 mA following a PWRDN transition to logic “1” with tRISE < 1 ns.
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DATA SHEET • SKY73422-11 DOWNCONVERSION MIXER
Evaluation Board Description
recommends that these resistors have a tolerance of ±1
percent to optimize performance consistency of the
SKY73422-11. These resistors are optional for device operation.
The SKY73422-11 Evaluation Board is used to test the
performance of the SKY73422-11 downconversion mixer. An
assembly drawing for the Evaluation Board is shown in Figure 3
and the layer detail is provided in Figure 4. A schematic diagram
of the SKY73422-11 Evaluation Board is shown in Figure 5.
It is recommended to apply solder paste with stencil, as noted
in Figure 6.
RF and IF matching components are listed in Table 7.
Package Dimensions
Circuit Design Considerations
The PCB layout footprint for the SKY73422-11 is provided in
Figure 6. Figure 7 shows the package dimensions for the 36-pin
QFN, and Figure 8 provides the tape and reel dimensions.
The following design considerations are general in nature and
must be followed regardless of final use or configuration:
Paths to ground should be made as short as possible.
Package and Handling Information
The ground pad of the SKY73422-11 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.
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.
Skyworks recommends including external bypass capacitors on
the VCC voltage inputs of the device.
The SKY73422-11 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.
Components L12, L13, L14, and L15 (see Figure 5) are high-Q
low loss inductors. These inductors must be able to pass
currents in excess of 200 mA DC.
Components R8, R9, R31, and R35 (see Figure 5) allow for
external adjustment of the IF amplifier bias currents. Skyworks
recommends that these resistors have a tolerance of 1% to
optimize performance consistency of the SKY73422-11. These
resistors are optional for device operation.
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.
Components R29, R33, R34, and R37 (see Figure 5) allow for
external adjustment of the LO driver bias currents. Skyworks
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PRELIMINARY DATA SHEET • SKY73422-11
J6
J7
J4
J1
J3
S2988
Figure 3. SKY73422-11 Evaluation Board Assembly Diagram
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DATA SHEET • SKY73422-11 DOWNCONVERSION MIXER
Top Layer
Ground Plane
Power Plane
Bottom Layer
S2989
Figure 4. SKY73422-11 Evaluation Board Layer Detail
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DATA SHEET • SKY73422-11 DOWNCONVERSION MIXER
1
R24
0Ω
L2
12 nH
6
3
4
2
3
C1
2.2 μF
Chan. A IF
Output
C24
13 pF
1
+5 V Supply
J6
2
+5 V Supply
J2
T1
C37
DNI
L14
390 nH
+5 V Supply
L15
390 nH
+5 V Supply
+5 V Supply
Channel A IF Bias
R9
DNI
C23
15 pF
R31
5.6 kΩ
C11
2.2 nF
C53
470 nF
C47
2.2 μF
R33
DNI
+5 V Supply
36
Chan. A Input
L9
DNI
L8
DNI
1
2
3
4
+5 V Supply
C5
2.2 nF
×
C19
15 pF
5
6
7
8
+5 V Supply
C2
2.2 nF
Chan. B Input
L3
DNI
9
C18
15 pF
×
10
R29
3.9 kΩ
+5 V Supply
R21
DNI
35 34 33 32 31 30 29 28
N/C
N/C
BS1
BS0
N/C
PWRDN
VCC_LOIN
GND
LO
27
26
25
+5 V Supply
R12
DNI
×
J5
24
23
22
×
R2
100 kΩ
×
1
×
2
+5 V Supply
R13
100 kΩ
21
+5 V Supply
20
C14
33 pF
19
C16
1 μF
J4
LO Input
11 12 13 14 15 16 17 18
×
R1
100 kΩ
×
RFA
GND
GND
VCC_LO
N/C
VCC_LO
GND
GND
RFB
C30
22 pF
C27
0Ω
J1
×
Bottom Ground
Pad
VCC_RFA
RIFA
N/C
IFA–
IFA+
N/C
VCC_IFA
RLOA
N/C
C33
22 pF
VCC_RFB
RIFB
N/C
IFB+
IFB–
N/C
VCC_IFB
RLOB
N/C
C39
0Ω
J7
+5 V Supply
Channel A LO Bias
C25
15 pF
C13
22 pF
× Channel B LO Bias
L4
DNI
+5 V Supply
R37
3.9 kΩ
R34
DNI
+5 V Supply
+5 V Supply
C20
15 pF
C22
15 pF
C10
2.2 nF
C54
470 nF
C48
2.2 μF
Channel B IF Bias
+5 V Supply
R8
DNI
R35
5.6 kΩ
+5 V Supply
+5 V Supply
L12
390 nH
L13
390 nH
1
T1
6
L1
12 nH
R19
0Ω
J3
Chan. B IF
Output
2
3
4
C21
13 pF
C36
DNI
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.
Y0067
Figure 5. SKY73422-11 Evaluation Board Schematic
(Component Values are for Band 2 and Band 39 per Table 7)
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13
DATA SHEET • SKY73422-11 DOWNCONVERSION MIXER
Table 7. Evaluation Board Schematic Band-Dependent Components
RF Frequency Range
(MHz)
3GPP
Band
fIF
Bandselects (Note 1)
BS1
RF
Matching
Comps
BS0
C33, C30
IF Matching
Comps
L2, L1
C24, C21
IF
Bias
LO
Bias
R31, R35
R29, R37
1710 to 1785
3
350 MHz
1
1
1000 pF
12 nH
13 pF
5.6 kΩ
4.3 kΩ
1850 to 1920
2, 39
350 MHz
1
1
22 pF
12 nH
13 pF
5.6 kΩ
3.9 kΩ
1920 to 1980
1
350 MHz
1
1
100 pF
12 nH
13 pF
5.6 kΩ
3.9 kΩ
2300 to 2400
40
200 MHz
1
1
4.7 pF
39 nH
7.5 pF
5.6 kΩ
3.9 kΩ
2300 to 2400
40
350 MHz
0
1
4.7 pF
12 nH
13 pF
5.6 kΩ
3.9 kΩ
2496 to 2690
7, 38, 41
200 MHz
1
1
2.2 pF
39 nH
8.2 pF
5.6 kΩ
3.9 kΩ
2496 to 2690
7, 38, 41
350 MHz
1
1
2.2 pF
12 nH
13 pF
5.6 kΩ
3.9 kΩ
Note 1 :
Configure BS0 and BS1 using resistors R1, R2, R12, R21, as either 100 kΩ or DNI (refer to Figure 5).
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9X 2.03
9X 1.52
9X 1.02
Pin 36
6.40
4.60
9X 2.03
9X 1.52
9X 1.02
9X 0.51
0
9X 0.51
9X 1.02
9X 1.52
9X 2.03
6.40 4.60
0.650 Typ.
0.250 Typ.
0.500 Typ.
2
3
0
7
20
81X ∅0.25
0
Pin 1
Board Metal
Pin 36
6.50
4.40
Pin 1
9X 0.51
0
9X 0.51
9X 1.02
9X 1.52
9X 2.03
DATA SHEET • SKY73422-11 DOWNCONVERSION MIXER
Via Pattern
(Note 1)
6.40
Pin 36
0.20 Typ.
Pin 1
3X 1.20
0.20 Typ.
0.20 Typ.
6.50 4.40
6.40
3X 1.20
0.20 Typ.
0.750 Typ.
0.350 Typ.
0.500 Typ.
Solder Mask Pattern
(Note 2)
Component
Outline
0.650 Typ.
0.250 Typ.
0.500 Typ.
67% solder coverage
on center pad
Stencil Pattern
(Note 3)
NOTES:
1. Via hole recommendations:
0.025 mm Cu via wall plating (minimum),
soldermask on the far side should tent
or plug via holes.
2. Soldermask recommendations:
Contact board fabricator for recommended
soldermask offset and tolerance.
3. Stencil recommendations:
0.125 mm stencil thickness, laser cut apertures,
trapezoidal walls and rounded corners offer
better paste release.
Dimension and tolerancing according to ASME Y14.5M-1994.
Unless specified, dimensions are symmetrical about center lines.
All dimensions are in millimeters.
S3158
Figure 6. PCB Layout Footprint for the SKY73422-11 6 x 6 mm QFN
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DATA SHEET • SKY73422-11 DOWNCONVERSION MIXER
0.850 ± 0.050
2X
A
6.000 ± 0.050
0.15 C
B
36
35
34
33
32
4.600 ± 0.050
0.10 M C A B
See Note 3
0.40 x 45°
0.203 Ref.
31
30
29
28
28
29
30
31
32
33
34
35
36
27
27
1
2
26
26
2
3
25
25
3
4
24
24
4
5
23
23
5
6
22
22
6
7
21
21
7
8
20
20
9
0.15 C
4.600 ± 0.050
6.000 ± 0.050
0.10 M C A B
1
19
10
11
12
13
14
15
16
17
Seating
Plane
0 to 0.05
2X
c
Top View
8
R0.075 Typ.
19
18
18
17
16
15
14
13
9
12
11
10
36 X 0.250 ± 0.050
36X 0.400 ± 0.050
0.10 M C A B
0.05 M C
Side View
Bottom View
NOTES:
1. All measurements are in millimeters.
2. Dimensioning and tolerancing according to ASME Y14.5M-1994.
Unless otherwise specified the following values apply:
Decimal Tolerance:
Angular Tolerance:
X.X (1 place) ± 0.1 mm
±1°
X.XX (2 places) ± 0.05 mm
X.XXX (3 places) ± 0.025 mm
3. Terminal #1 identification mark located within marked area.
4. Unless specified, dimensions are symmetrical about center lines.
Figure 7. SKY73422-11 36-Pin QFN Package Dimensions
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0.500
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S2944
DATA SHEET • SKY73422-11 DOWNCONVERSION MIXER
P2
2.00 ± 0.1 (Note 1)
∅1.55 ± 0.05 (Do)
0.30 ± 0.05
Po
4.00 ± 0.1 (Note 2)
E1
1.75 ± 0.1
Y
6.30 ± 0.1 (Bo)
A
Ref
3° .
CL
16.00 ± 0.3
∅1.5 Min. (D1)
7.50 ± 0.1 (Note 1)
Pin 1 Location
1.10 ± 0.1 (Ko)
Y
12.00 ± 0.1 (P1)
Section Y-Y
6.30 ± 0.1 (Ao)
Ref.
R0.5
Notes:
1. Measured from center line of sprocket hole to center line of pocket.
2. Cumulative tolerance of 10 sprocket holes is ± 0.20 mm.
3. Other material available.
Detail A
S2943
All measurements are in millimeters.
Figure 8. SKY73422-11 Tape and Reel Dimensions
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DATA SHEET • SKY73422-11 DOWNCONVERSION MIXER
Ordering Information
Model Name
SKY73422-11: 1700 to 2700 MHz Downconversion Mixer
Manufacturing Part Number
SKY73422-11
Evaluation Board Part Number
Z487-B – EK6 (1710 to 1785 MHz, 350 MHz IF)
Z487-B – EK2 (1850 to 1910 MHz, 350 MHz IF)
Z487-B – EK4 (1920 to 1980 MHz, 350 MHz IF)
Z487-B – EK1 (2300 to 2400 MHz, 200 MHz IF)
Z487-B – EK11 (2300 to 2400 MHz, 350 MHz IF)
Z487-B – EK8 (2496 to 2690 MHz, 200 MHz IF)
Z487-B – EK9 (2496 to 2690 MHz, 350 MHz IF)
Copyright © 2013-2014 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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