SKY65452-92LF Datasheet, PDF (3/7 Pages) Skyworks Solutions Inc. – 40 MHz to 1 GHz Broadband 75 (ohm) CATV Low-Noise Amplifier

DATA SHEET • SKY65452-92LF: 40 MHz TO 1 GHz BROADBAND 75 Ω CATV LNA
Table 4. SKY65452-92LF Electrical Specifications¹
(VCC = 3.3 V, Bypass Control = 3.3 V, TC = +25 °C, f = 500 MHz, PIN = –15 dBm/Tone, Unless Otherwise Noted)
Parameter
Symbol
Minimum
Typical
Maximum
Main Input to Output
Impedance I/O
75
Supply current²
Icc
42
Gain
Gain flatness
Reverse isolation
|S21|
14
15
16
0.6
19
Noise figure
NF
Third order output intercept point @ 42 mA³
OIP3
2.9
+28.4
Input return loss
|S11|
21
Output return loss
|S22|
19
1 _{Performance is guaranteed only under the conditions listed in this table.}
2 _{ICC Test Condition: No RF is applied to devices and RF input/output are 75 Ω terminated.}
3 _{OIP3 Test Condition: f1 = 1000 MHz, f2 = 1001 MHz.}
Units
Ω
mA
dB
dB
dB
dB
dBm
dB
dB
Evaluation Board Description
The Skyworks SKY65452-92LF Evaluation Board is used to test
the performance of the SKY65452-92LF low-noise amplifier.
Figure 3 shows an application schematic for the SKY65452-92LF.
An assembly drawing for the Evaluation Board is shown in
Figure 4, and the layer detail physical characteristics are noted in
Figure 5. Typical part marking is shown in Figure 6.
Capacitor C5 provides DC bias decoupling for the output stage
collector voltage. Pins 6 and 1 are the RF input and output
signals, respectively.
External DC blocking is provided on the input and output by
capacitors C1 and C2. Ground pin 5 and the center ground pad
provide the DC and RF ground. Resistor R1 is the bias resistor that
can be used to optimize the current and performance of the LNA
and L1 is a choke inductor which connects the Vcc to the output
stage of the LNA. Pin 2 provides an enable function and has an
optional RC circuit held in place by resistor R2 and capacitor C3.
Pin 3 is a no connect pin and can be left floating or may be
grounded.
The input and output RF traces are 75 Ω traces.
VCC
RF Output
75 Ω trace
C2
J1
10 nF
C5
10 μF
R1
6Ω
L1
Bead (1.5 kΩ)
U1
1 _RFOUT
C4 ^{2 VCC}
10 nF
3 _N/C
U1_3
RFIN ⁶
GND ⁵
N/C ⁴
RF Input
C1 _{75 Ω trace}
J2
10 nF
R2
DNI
VEN
C3
DNI
VCC
U1_3
VEN
P1
6
5
4
3
2
1
Header 4
Figure 3. SKY65452-92LF Application Schematic
203095D-003
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
203095E • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • February 18, 2016
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