NMF480- 2 480MHz SAW Filter Approved by: Checked by: Issued by: SPECIFICATION PRODUCT: SAW FILTER MODEL: NMF480-2 TO-39A HOPE MICROELECTRONICS CO.,LIMITED Tel:+86-755-82973806 Fax:+86-755-82973550 E-mail: [email protected] Page 1 of 4 http://www.hoperf.com SAW Filter NMF48M-2 The NMF480-2 is an IF filter for DBS receivers with constant group delay. 1.Package Dimension (TO-39) 2.Marking Pin Configuration 1 Input / Output 2 Output / Input 3 Case Ground Dimensions Data (Unit: mm) A 9.35±0.10 B 5.08±0.10 C 3.40±0.10 D 3.00±0.20 E Φ0.45±0.20 3.Equivalent LC Model NMF480-2 Color: Black or Blue 4.Typical Frequency Response Tel:+86-755-82973806 Fax:+86-755-82973550 E-mail: [email protected] http://www.hoperf.com SAW Filter NMF480-2 5.Performance 5-1.Maximum Ratings Rating Value Units V AC Voltage Between Any Two Pins VPP 5 DC Voltage Between Any Two Pins VDC 0 V Storage temperature range Tstg -40 to +85 ℃ Operable temperature range TA -25 to +85 ℃ 5-2.Electronic Characteristics Reference temperature: Terminating source impedance: Terminating load impedance: Group delay aperture: TA = 25 ℃ ZS = 50 Ω ZL = 50 Ω 0.25MHz Characteristic Min. Typical Max. Units 479.00 480.00 481.00 MHz -- 22.5 24 dB 25.6 26.6 27.6 MHz --40.0 38.0 3.0 3.2 46.0 43.0 4.6 4.6 --- dB dB dB dB 40.0 46.0 -- dB ∆α -- 0.6 1.0 dB τ -- 227.5 -- ns ∆τ -- 8.5 15 ns TCf -- -86 -- ppm/K Center Frequency fC Insertion attenuation 480.00 MHz (Reference level for the following data) α αrel≤3dB Pass bandwidth αrel Relative attenuation Lower sidelobe Upper sidelobe B3dB 466.50 MHz 493.50 MHz 430.00 ….455.50 MHz 504.50 … 530.00 MHz Reflected wave signal suppression 0.15µs … 2.0µs after main pulse Amplitude ripple (p-p) 473.50 … 486.50 MHz Group delay Group delay ripple (p-p) 480.00 MHz 467.00 … 493.00 MHz Temperature coefficient of frequency LCAUTION: Electrostatic Sensitive Device. Observe precautions for handling! C ○ 2003. All Rights Reserved. 1. 2. The frequency fC is defined as the midpoint between the 3dB frequencies. Unless noted otherwise, all measurements are made with the filter installed in the specified test fixture that is connected to a 50Ω test system with VSWR≤1.2:1. The test fixture L and C are adjusted for minimum insertion loss at the filter center frequency, fC. Note that insertion loss, bandwidth, and passband shape are dependent on the impedance matching component values and quality. Unless noted otherwise, specifications apply over the entire specified operating temperature range. The specifications of this device are based on the test circuit shown above and subject to change or obsolescence without notice. All equipment designs utilizing this product must be approved by the appropriate government agency prior to manufacture or sale. Our liability is only assumed for the Surface Acoustic Wave (SAW) component(s) per se, not for applications, processes and circuits implemented within components or assemblies. For questions on technology, prices and delivery, please contact our sales offices or e-mail [email protected]. 3. 4. 5. 6. 7. Tel:+86-755-82973806 Fax:+86-755-82973550 E-mail: [email protected] http://www.hoperf.com