SKY13547-490LF RF Switch ICs 5-1800MHz SPDT IL .3dB @ 1.0GHz

Description

The SKY13547-490LF is a single-pole, double-throw (SPDT) 75 Ωswitch. The high linearity and low

insertion loss of theSKY13547-490LF meet the most stringent requirements ofDOCSIS 3.1 applications.

The switch is a “reflective short” on the isolated port.

The SKY13547-490LF SP2T switch is provided in a

compact QuadFlat No-Lead (QFN) 2 x 2 mm package. A functional blockdiagram is shown in Figure 1.

Applications

 Cable modem

 Set-top box

 Filter band switching

 Relay replacement to switch between DOCSIS 3.0and DOCSIS 3.1 configurations

Features

 Ultra-high linearity performance

 IMD2, 3: < –110 dBc typ. @ PIN = +68 dBmV FIN = 880 MHz

                  < –80 dBc typ. @ PIN = +68 dBmV FIN = 40 MHz

 Low insertion loss: 0.3 dB @ 1.0 GHz

 High IP0.1dB: +38 dBm

 No external DC blocking capacitors required

 DC supply voltage: 2.5 V to 4.8 V

 Small, QFN (12-pin, 2 x 2 mm) package(MSL1, 260 C per JEDEC J-STD-020)

The SKY13547-490LF is a specific component that appears to be a single-pole, double-throw (SPDT)

75 Ω switch. It is designed to meet the stringent requirements of DOCSIS 3.1 applications, offering high

linearity and low insertion loss [1].

Key features and details of the SKY13547-490LF include:

1. Function: The SKY13547-490LF is a SPDT switch, meaning it can connect one input to either of two outputs.
2. Impedance: It is designed for use with 75 Ω systems.
3. Linearity: The switch offers high linearity, ensuring accurate signal transmission.
4. Insertion Loss: It has low insertion loss, minimizing signal degradation.
5. Package: The SKY13547-490LF is provided in a compact Quad Flat No-Lead (QFN) 2 x 2 mm package,

which helps save space on the application board [1].

Applications
The SKY13547-490LF switch is suitable for various applications, including set-top boxes, DVRs (Digital Video

Recorders), cable modems, home gateways, and personal video recorders (PVRs) [3].