Microchip Technology SAW Filters 6

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Part RoHS Manufacturer Filter Type Maximum Frequency Power Supply (V) No. of Functions Screening Level Output Impedance (ohm) Average Input Power Packing Method Mounting Type No. of Terminals I/O Impedance Sub-Category Dimensions Maximum Operating Temperature Attenuation At Maximum Frequency Maximum Attenuation Frequency (± Δf) Package Material Minimum Operating Temperature Minimum Attenuation Frequency (± Δf) Terminal Finish Manufacturer Series Height Width (mm) Diameter (mm) Maximum Insertion Loss Additional Features Center/Cutoff Frequency (fo/fc) JESD-609 Code Minimum Frequency Impedance (Input) Length

TFS1237

Microchip Technology

SAW FILTER

1

50 OHM

SURFACE MOUNT

6

SAW Filters

L3.0XB3.0XH1.2 (mm)/L0.118XB0.118XH0.047 (inch)

85 Cel

CERAMIC

-40 Cel

GOLD OVER NICKEL

1.2 mm

3.0

4 dB

TAPE AND REEL

1237 MHz

e4

50 OHM

3 mm

TFS807

Microchip Technology

SAW FILTER

1

50 OHM

SURFACE MOUNT

L3.81XB3.81XH1.2 (mm)/L0.15XB0.15XH0.047 (inch)

85 Cel

-30 Cel

1.2 mm

3.81

3 dB

TR, EMBOSSED, 7 INCH

807 MHz

50 OHM

3.81 mm

TFS1227B

Microchip Technology

SAW FILTER

1

50 OHM

SURFACE MOUNT

6

L3.0XB3.0XH1.2 (mm)/L0.118XB0.118XH0.047 (inch)

85 Cel

-40 Cel

1.2 mm

3.0

4 dB

TAPE AND REEL

1227.6 MHz

50 OHM

3 mm

TFS170E

Microchip Technology

SAW FILTER

1

570 OHM//-13.6 pF

SURFACE MOUNT

L15.32XB6.5XH1.8 (mm)/L0.603XB0.256XH0.071 (inch)

55 Cel

10 Cel

1.8 mm

6.5

13 dB

TR, EMBOSSED, 13 INCH

170 MHz

660 OHM//-11.6 pF

15.32 mm

TFS1237C

Microchip Technology

SAW FILTER

1

200 OHM

SURFACE MOUNT

8

L3.0XB3.0XH1.0 (mm)/L0.118XB0.118XH0.039 (inch)

85 Cel

-40 Cel

1 mm

3.0

4.5 dB

TAPE AND REEL

1235.5 MHz

200 OHM

3 mm

TFS300

Microchip Technology

SAW FILTER

1

607 OHM//-1.7 pF

SURFACE MOUNT

8

L5.0XB5.0XH1.8 (mm)/L0.197XB0.197XH0.071 (inch)

80 Cel

15 dB

400 kHz

-20 Cel

GOLD OVER NICKEL

1.8 mm

5.0

6.5 dB

TAPE AND REEL

300.01 MHz

e4

607 OHM//-1.7 pF

5 mm

SAW Filters

SAW (Surface Acoustic Wave) filters are a type of electronic filter that operates on the principle of acoustic waves propagating on the surface of a piezoelectric material. These filters are widely used in radio frequency (RF) and microwave communication systems to suppress unwanted frequencies and improve signal quality.

The SAW filter consists of a piezoelectric substrate, typically made of quartz, onto which a set of interdigitated electrodes are deposited. The input signal is coupled to the SAW filter through the transducer electrodes, which convert the electrical signal to an acoustic wave. The acoustic wave then travels through the substrate, where it is selectively filtered by the frequency-dependent response of the substrate material, before being converted back to an electrical signal by the output transducer electrodes.

One of the key advantages of SAW filters is their high level of selectivity, which allows them to provide superior filtering performance compared to other types of filters. SAW filters can be designed to have very narrow bandwidths, which makes them ideal for applications that require high-frequency stability and low phase noise. Additionally, SAW filters are highly reliable and can operate over a wide temperature range, making them suitable for use in harsh environments.

SAW filters are used in a wide range of applications, including cellular communications, satellite communications, wireless LANs, and radio and television broadcasting. They are also used in industrial and medical applications where high-frequency stability is required. Overall, SAW filters provide a reliable and effective solution for improving the performance of RF and microwave communication systems.