DATA SHEET
SKY13292-365LF: 0.25 - 2.15 GHz 4x2 Switch Matrix with
Tone/Voltage Decoder
Applications
DBS switching systems
cable TV/modems
T1
V1
VDD
P0
B1
B2
T2
Control Circuit
V2
Features
Broadband frequency range: 0.25 to 2.15 GHz
Tone and voltage, or mode control switching
High isolation: 40 dB typical @ 900 MHz
Four RF inputs, two RF outputs
Low current consumption: 8.5 mA typical @ 5 V
Miniature QFN (20-pin, 4 x 4 mm) package (MSL1, 260
C
per
JEDEC J-STD-020)
Skyworks offers lead (Pb)-free, RoHS (Restriction of
Hazardous Substances) compliant packaging.
OUT1
OUT2
I1
I3
I2
I4
S2004
Figure 1. SKY13292-365LF Block Diagram
Description
The SKY13292-365LF is a four-input to two-output switch matrix
intended for Direct Broadcast Satellite (DBS) switching and cable
TV/modem applications. The SKY13292-365LF enables 16 states,
directing any of the four inputs to either of the two outputs.
Switch states are selected using tone and voltage signals together
with logic levels applied to mode control inputs. The switch can
operate over a temperature range of –40 °C to +85 °C.
The SKY13292-365LF is manufactured in a compact, 4 x 4 mm,
20-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.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200348G • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • July 13, 2010
1
DATA SHEET • SKY13292-365LF 4X2 SWITCH MATRIX
VDD
20
19
18
17
16
OUT1
T1
V1
CR
I1
N/C
B1
B2
P0
1
2
3
4
5
15
14
13
12
11
OUT2
T2
V2
CT
I3
6
7
8
9
10
GND
I2
GND
I4
GND
S2005
Figure 2. SKY13292-365LF Pinout – 20-Pin QFN
(Top View)
Table 1. SKY13292-365LF Signal Descriptions
Pin #
1
2
3
4
5
6
7
8
9
10
Name
OUT1
T1
V1
CR
I1
GND
I2
GND
I4
GND
Description
RF channel output #1,
250 to 2150 MHz
Tone detector input #1
Voltage detector input #1
No connection. This pin
must be left open.
RF input #1,
250 to 2150 MHz
Ground
RF input #2,
250 to 2150 MHz
Ground
RF input #4,
250 to 2150 MHz
Ground
Signal
Type
RF
AC
DC
DC
RF
GND
RF
GND
RF
GND
I/O
O
I
I
–
I
–
I
–
I
–
Pin #
11
12
13
14
15
16
17
18
19
20
I3
CT
V2
T2
OUT2
N/C
B2
B1
P0
VDD
Name
Description
RF input #3,
250 to 2150 MHz
No connection. This pin
must be left open.
Voltage detector input #2
Tone detector input #2
RF channel output #2,
250 to 2150 MHz
No connection. This pin
must be left open.
Mode control input #2
Mode control input #1
Mode control input #0
Supply voltage, +5 V
DC
I
Signal
Type
RF
DC
DC
AC
RF
DC
DC
DC
I
–
I
I
O
–
I
I
I/O
Technical Description
The SKY13292-365LF is controlled by a pair of DC voltage levels
applied to V1 (pin 3) and V2 (pin 13) combined with 22 kHz signal
levels applied to T1 (pin 2) and T2 (pin 14). These signals are
supplied from a set top box, receiver, etc., that is controlled by
the user.
The configuration of the switch, itself, is controlled by the logic
levels applied to P0 (pin 19), B1 (pin 18), and B2 (pin 17).
A pair of SKY13292-365LF 4x2 switches can be used to form a
4x4 switch. Figure 3 shows a suggested implementation in which
one of the 4x2 switches is mounted on the top side of a printed
circuit board, with the second 4x2 switch mounted on the back
side of the printed circuit board.
The four RF input signals, which may come from a variety of
sources but are shown here coming from four separate low-noise
block converters, are split and routed directly to the inputs of the
top-side switch and through vias to the inputs of the back-side
switch.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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July 13, 2010 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200348G
DATA SHEET • SKY13292-365LF 4X2 SWITCH MATRIX
To
Set
Top Box Receive 1
Polarization
1
Low-Noise
Block
Converter
A
OUT1
I1
V1
T1
Antenna 1
Polarization
2
Low-Noise
Block
Converter
B
I2
VDD
Control Circuit
P0 = 0 V
B1 = 0 V
B2 = 0 V
Polarization
1
Low-Noise
Block
Converter
C
I4
Antenna 2
Polarization
2
Low-Noise
Block
Converter
D
I3
OUT2
V2
T2
Switch
1
Top
Side
of PCB
To
Set
Top Box Receive 3
OUT1
V1
T1
Back
Side
of PCB
I1
I2
VDD
Control Circuit
P0 = 5 V
B1= 5 V
B2 = 5 V
I4
I3
OUT2
V2
T2
Switch
2
To
Set
Top Box Receive 4
S2007
Figure 3. Suggested Implementation of Two 4x2 Switches
With each of the configuration inputs (P0, B1, and B2) of the top-
side switch held at 0 V, and each of the configuration inputs of the
back-side switch held at 5 V, the same logic controls from each of
the 4 receivers selects any specific input signal.
For example, if the user of receiver 1 wants to receive the signal
from antenna 1, polarization 1, through low-noise block A, that
receiver must send a 22 kHz tone and a control voltage greater
than the threshold voltage to switch 1. If the user of receiver 3
also wants to receive the signal from antenna 1, polarization 1,
through low-noise block A, that receiver must also send a 22 kHz
tone and a control voltage greater than the threshold voltage to
switch 2.
Other logic configurations are possible. Refer to the truth Tables
in this Data Sheet.
Electrical and Mechanical Specifications
The absolute maximum ratings of the SKY13292-365LF are
provided in Table 2. Electrical specifications are provided in
Table 3.
Typical performance characteristics of the SKY13292-365LF are
illustrated in Figures 4 through 9.
The state of the SKY13292-365LF is determined by the logic
provided in Tables 4 through 13.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200348G • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • July 13, 2010
3
DATA SHEET • SKY13292-365LF 4X2 SWITCH MATRIX
Table 2. SKY13292-365LF Absolute Maximum Ratings
Parameter
Supply voltage
Mode select input voltage
Polarization input control voltage
RF input power
Storage temperature
Operating temperature
Note:
Symbol
V
DD
Minimum
Typical
Maximum
5.5
5.5
21
Units
V
V
V
dBm
C
C
P
IN
T
STG
T
OP
–65
–40
+15
+150
+85
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 3. SKY13292-365LF Electrical Specifications (Note 1) (1 of 2)
(V
DD
= 0 and 5 V, T
OP
= +25
C,
Characteristic Impedance [Z
O
] = 50
Ω,
Unless Otherwise Noted)
Parameter
Tone frequency
Symbol
T
F
1
, T
F
2
Test Condition
V
TF
= 100 mVp-p, with
10 nF external DC
blocking capacitor
@ 22 kHz
Min
18
Typical
22
Max
26
Units
kHz
Tone threshold voltage (Note 2)
RF Switch Specifications
Insertion loss
Insertion loss flatness
Isolation
T
T
1
, T
T
2
100
170
350
mVp-p
IL
0.25 to 0.95 GHz
0.95 to 2.15 GHz
0.25 to 0.95 GHz
0.95 to 2.15 GHz
7.5
9.0
0.7
2.0
8.0
10.0
1.0
3.0
dB
dB
dB
dB
Iso
Normalized to insertion
loss
0.25 to 0.95 GHz
0.95 to 2.15 GHz
38
28
40
30
dB
dB
Input return loss
0.25 to 0.95 GHz
I1, I2, I3, I4
OUT1, OUT2
10
8
15
10
+15
dB
dB
dBm
1 dB Input Compression Point
Tone/Voltage Detector Specifications
Polarization select input current
Polarization select threshold voltage
Polarization switching time
Tone frequency
Tone threshold voltage
Tone input impedance
IP1dB
0.25 to 0.95 GHz
I
PT
1
, I
PT
2
V
TP
1
, V
TP
2
T
SPOL
T
F
1
, T
F
2
T
T
1
, T
T
2
T
ZIN
1
, T
ZIN
2
V
P
1
and V
P
2
= 21 V
14.0
200
14.5
0.9
7
22
170
2
650
900
15.0
μA
V
μs
kHz
Vp-p
kΩ
@ 22 kHz without external
capacitor
@ 22 kHz including
external 10 nF series
blocking capacitor
45
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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July 13, 2010 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200348G
DATA SHEET • SKY13292-365LF 4X2 SWITCH MATRIX
Table 3. SKY13292-365LF Electrical Specifications (Note 1) (2 of 2)
(V
DD
= 0 and 5 V, T
OP
= +25
C,
Characteristic Impedance [Z
O
] = 50
Ω,
Unless Otherwise Noted)
Parameter
Mode Control Specifications
Control input current
Control input low logic level
Control input high logic level
Power Supply
Supply voltage
Supply current
V
DD
I
DD
4.0
5.0
8.5
5.5
V
mA
I
DIG
V
LOW
V
HIGH
0 V
≤
V
CTRL
≤
V
DD
0
V
DD
– 1
V
DD
1
1
V
DD
+ 0.5
μA
V
V
Symbol
Test Condition
Min
Typical
Max
Units
Note 1:
Performance is guaranteed only under the conditions listed in this Table.
Note 2:
The SKY13292-365LF detects 22 kHz signaling amplitudes across the full specified range of the DiSEqC bus functional specification.
Typical Performance Characteristics
(V
DD
= 5 V, T
OP
= +25
C,
P
IN
= 0 dBm, Characteristic Impedance [Z
O
] = 50
Ω,
Unless Otherwise Noted)
0
0
Insertion Loss and Isolation (dB)
–10
–20
–30
–40
–50
–60
–70
–80
0
440
880
1320
1760
2200
Insertion Loss and Isolation (dB)
–10
–20
–30
–40
–50
–60
–70
–80
0
440
880
1320
1760
2200
Frequency (GHz)
Figure 4. I1 to OUT1 and I1 to OUT2 Paths for States 0 to 15
Frequency (GHz)
Figure 5. I2 to OUT1 and I2 to OUT2 Paths for States 0 to 15
0
0
Insertion Loss and Isolation (dB)
Insertion Loss and Isolation (dB)
–10
–20
–30
–40
–50
–60
–70
–80
0
440
880
1320
1760
2200
–10
–20
–30
–40
–50
–60
–70
–80
0
440
880
1320
1760
2200
Frequency (GHz)
Figure 6. I3 to OUT1 and I3 to OUT2 Paths for States 0 to 15
Frequency (GHz)
Figure 7. I4 to OUT1 and I4 to OUT2 Paths for States 0 to 15
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200348G • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • July 13, 2010
5
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