NMF479.5- 5 479.5MHz SAW Filter Approved by: Checked by: Issued by: SPECIFICATION PRODUCT: SAW FILTER MODEL: NMF479.5- 5 TO-39B 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 NMF479.5-5 The NMF479.5-5 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 2 / Input2 3 Output 1 / Input1 4 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 4-Φ0.45±0.20 3.Equivalent LC Model NMF479.5-5 Color: Black or Blue 4.Performance 4-1.Maximum Ratings Rating Value Units AC Voltage Between Any Two Pins VPP 5 V DC Voltage Between Any Two Pins VDC 0 V Storage temperature range Tstg -40 to +85 ℃ Operable temperature range TA -25 to +85 ℃ 4-2.Electronic Characteristics Reference temperature: Terminating source impedance: Terminating load impedance: Group delay aperture: TA = 25 ℃ ZS = 50 Ω ZL = 50 Ω 0.25MHz Tel:+86-755-82973806 Fax:+86-755-82973550 E-mail: [email protected] http://www.hoperf.com SAW Filter NMF479.5-5 Characteristics of Channel1 Characteristic Min. Typ. Max. Units Center Frequency fC 478.50 479.50 480.50 MHz Insertion attenuation 479.50 MHz (Reference level for the following data) α -- 21.8 24.0 dB -- 15.0 -- MHz --34.0 34.0 3.1 3.0 45.0 44.0 5.0 5.0 --- dB dB dB dB 40.0 46.0 -- dB αrel≤3dB Pass bandwidth Relative attenuation Lower sidelobe Upper sidelobe 472.00 MHz 487.00 MHz 430.00 ….458.00 MHz 501.00 … 530.00 MHz B3dB αrel Reflected wave signal suppression 0.15s … 2.0µs after main pulse Amplitude ripple (p-p) 475.00 … 484.00 MHz ∆α -- 0.6 1.2 dB Group delay ripple (p-p) 472.00 … 487.00 MHz ∆τ -- 10 15 ns TCf -- -86 -- ppm/K Min. Typ. Max. Units Temperature coefficient of frequency Characteristics of Channel2 Characteristic Center Frequency fC 478.50 479.50 480.50 MHz Insertion attenuation 479.50 MHz (Reference level for the following data) α -- 22.0 24.0 dB -- 27.0 -- MHz --34.0 34.0 3.1 2.7 41.5 41.5 5.0 5.0 --- dB dB dB dB 40.0 44.0 -- dB Pass bandwidth Relative attenuation Lower sidelobe Upper sidelobe αrel≤3dB 466.00 MHz 493.00 MHz 430.00 ….456.00 MHz 503.00 … 530.00 MHz B3dB αrel Reflected wave signal suppression 0.15µs … 3.0µs after main pulse Amplitude ripple (p-p) 475.00 … 484.00 MHz ∆α -- 0.6 1.2 dB Group delay ripple (p-p) 466.00 … 493.00 MHz ∆τ -- 8 15 ns TCf -- -86 -- ppm/K Temperature coefficient of frequency CAUTION: Electrostatic Sensitive Device. Observe precautions for handling! Tel:+86-755-82973806 Fax:+86-755-82973550 E-mail: [email protected] http://www.hoperf.com SAW Filter NMF479.5-5 5.Typical Frequency Response C 2003. All Rights Reserved. ○ Tel:+86-755-82973806 Fax:+86-755-82973550 E-mail: [email protected] http://www.hoperf.com