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B4937

EPCOS
Part Number B4937
Manufacturer EPCOS
Description SAW Components
Published Aug 20, 2007
Detailed Description www.DataSheet4U.com SAW Components Data Sheet B4937 SAW Components Low-Loss Filter for Mobile Communication Data Sheet...
Datasheet PDF File B4937 PDF File

B4937
B4937

Overview
www.
DataSheet4U.
com SAW Components Data Sheet B4937 SAW Components Low-Loss Filter for Mobile Communication Data Sheet B4937 109,8 MHz Ceramic package QCC10C Features s s s s s s s Low-loss IF filter for mobile telephone Channel selection in CDMA systems Very small size Low insertion attenuation Balanced and unbalanced operation possible Filter surface passivated Ceramic SMD package Terminals s Gold-plated Ni Dimensions in mm, approx.
weight 0,24 g Pin configuration 10 9 5 4 2, 7 1, 3, 6, 8 Input Input ground or balanced input Output Balanced output or output ground Case – ground To be grounded Type B4937 Ordering code B39111-B4937-U910 Marking and Package according to C61157-A7-A73 Packing according to F6104-V8104-Z000 Electrostatic Sensitive Device (ESD) Maximum ratings Operable temperature range Storage temperature range DC voltage Source power T Tstg VDC Ps – 40/+ 85 – 40/+ 85 0 10 ˚C ˚C V dBm 2 May 11, 2000 SAW Components Low-Loss Filter for Mobile Communication Data Sheet Characteristics Operating temperature range: Terminating source impedance: Terminating load impedance: B4937 109,8 MHz T = -35 to +85 ˚C ZS = 1200 Ω || 120 nH ZL = 1000 Ω || 110 nH min.
typ.
109,8 8,5 max.
— 10,0 MHz dB Nominal frequency Minimum insertion attenuation (including losses in matching circuit) Amplitude ripple (p-p) fN – 0,3 MHz fN αmin ∆α — — .
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fN + 0,3 MHz ∆τ — 0,4 1,0 dB Phase Linearity (rms) fN – 0,614 MHz .
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fN + 0,614 MHz αrel — 1,5 3,0 ˚ Relative attenuation (relative to αmin) fN ± 0,614 MHz — 38 40 35 35 35 33 40 38 4,0 42 45 39 38 38 35 45 42 40 38 35 40 5,0 — — — — — — — — — — — — dB dB dB dB dB dB dB dB dB dB dB dB dB fN – 2,05 fN – 1,7 fN – 1,25 fN – 0,9 fN + 0,9 fN + 1,25 fN + 1,7 fN + 2,05 MHz MHz MHz MHz MHz MHz MHz MHz .
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fN – 25 MHz fN – 1,7 MHz fN + 0,9 MHz fN + 1,7 MHz fN – 1,7 MHz fN – 0,9 MHz fN + 1,7 MHz fN + 25 MHz 36 33 33 36 Test Matching Network to bal.
200Ω / unbal.
50Ω (element values depend...


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