B3640 EPCOS | Alldatasheet

Document overview

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Technical content

2 Apr 04, 2001

238,0 MHzLow-Loss Filter Data Sheet Ceramic packageQCC12

Features

  • Low-loss IF filter for DCS base station
  • Tx path
  • Temperature stable
  • Ceramic SMD package Terminals
  • Gold plated Dim. in mm, aprox. weight 0,4 g Pin configuration 1, 10 Input (balanced)

7 Output

4 Output ground

3, 9 To be grounded 2, 6, 8, 12 Case ground 5, 11 Not connected ElectrostaticSensitiveD evice (ESD ) Type Ordering code Marking and Package according to Packing according to B3640 B39231-B3640-Z510 C61157-A7-A55 F61074-V8026-Z000 Maximum ratings Operable temperature range T – 20/+ 75 ˚C Storage temperature rangeTstg – 40/+ 85 ˚C DC voltage VDC 10 V Source power Ps 10 dBm

3 Apr 04, 2001

238,0 MHzLow-Loss Filter Data Sheet Characteristics Operating temperature range: TA = -5 - 75 ˚C Terminating source impedance: ZS = 200Ω and matching network. Terminating load impedance: ZL = 50Ω and matching network 1)Temperature dependance offc: fc(TA) =fc(T0)(1 +TC f(TA –T0)2) min. typ. max. Nominal frequency fN — 238,0 — MHz Minimum insertion attenuation α min 7 8,5 9,5 dB (including matching network) Amplitude ripple(p-p) Δα fN ± 100 kHz — 0,3 1,1 dB fN ± 300 kHz — 1,9 3,0 dB Absolute group delay τ — 1,5 3 µs Group delay variation Δτ fN ± 100 kHz — 50 150 ns fN ± 300 kHz — 90 250 ns Relative attenuation(relative toα min) α rel fN ± 0,6 MHz ... fN ± 0,8 MHz 5 8 — dB fN ± 0,8 MHz ... fN ± 1,8 MHz 10 25 — dB fN ± 1,8 MHz ... fN ± 6,0 MHz 25 45 — dB fN ± 6,0 MHz ... fN ± 20 MHz 30 41 — dB fN ± 20 MHz ... fN ± 120 MHz 40 42 — dB Temperature coefficient of frequency 1) TC f — –0,036 — ppm/K 2 Turnover temperature T0 —3 0 — ˚ C

4 Apr 04, 2001

238,0 MHzLow-Loss Filter Data Sheet Matching network (element values depend on pcb layout) Cp1 = 10 pF Ls2 = 22 nH Ls3 = 27 nH Ls4 = 33 nH Cp5 = 22 pF

5 Apr 04, 2001

238,0 MHzLow-Loss Filter Data Sheet Normalized frequency response Normalized frequency response (pass band)

6 Apr 04, 2001

238,0 MHzLow-Loss Filter Data Sheet Published by EPCOS AG Surface Acoustic Wave Components Division, SAW MC IS P.O. Box 80 17 09, D-81617 München  EPCOS AG 1999. All Rights Reserved. As far as patents or other rights of third parties are concerned, liability is only assumed for compo- nents per se, not for applications, processes and circuits implemented within components or assemblies. The information describes the type of component and shall not be considered as assured characteristics. Terms of delivery and rights to change design reserved. For questions on technology, prices and delivery please contact the sales offices of EPCOS AG or the international representatives. Due to technical requirements components may contain dangerous substances. For information on the type in question please also contact one of our sales offices.