SAW Components Data Sheet B4956 SAW Components B4956 85,38 MHz Low-Loss Filter for Mobile Communication Data Sheet Ceramic package QCC10B Features ■ ■ ■ ■ ■ ■ ■ IF filter for mobile telephone Channel selection in CDMA systems Balanced or unbalanced operation possible High rejection, very small size Low amplitude ripple Filter surface passivated Package for Surface Mounted Technology (SMT) Terminals ■ Gold plated Dimensions in mm, approx. weight 0,23 g Pin configuration 10 9 5 4 2, 7 1, 3, 6, 8 Type B4956 Input Balanced input or ground Output Balanced output To be grounded Case ground Ordering code Marking and Package Packing B39850-B4956-Z710 according to C61157-A7-A49 according to F61074-V8172-Z000 Electrostatic Sensitive Device (ESD) Maximum ratings Operable temperature range Storage temperature range DC voltage ESD voltage Source power T Tstg VDC V*ESD Ps – 40/+ 85 – 40/+ 85 3 100 10 ˚C ˚C V V dBm Machine Model, 10 pulses * - acc. to JESD22-A115A (Machine Model), 10 negative & 10 positive pulses 2 Mar 11, 2005 SAW Components B4956 85,38 MHz Low-Loss Filter for Mobile Communication Data Sheet Characteristics T = –35˚C .. +85 ˚C ZS = 1570 Ω || 361 nH ZL = 500 Ω || 258 nH Operating temperature range: Terminating source impedance: Terminating load impedance: min. typ. Nominal frequency fN — 85,38 Minimum insertion attenuation αmin — αmin max. — MHz 9,0 10,8 dB — 11,3 12,8 dB — 0,4 1,0 dB — 2,0 3,5 ˚ — 4,5 5,0 dB (without loss in matching network) Minimum insertion attenuation (with loss in matching network according to figure 1) Amplitude ripple fN – 0,3 MHz ∆α ... fN + 0,3 MHz Phase linearity (rms deviation) fN – 0,615 MHz ... fN + 0,615 MHz Relative attenuation (relative to αmin) fN ± 0,63 MHz fN – 0,9 fN + 0,9 fN – 1,7 fN + 1,7 fN – 9,0 fN – 3,0 fN – 1,7 fN + 0,9 fN + 1,7 fN + 7,0 MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz ... ... ... ... ... ... fN – 3,0 fN – 1,7 fN – 0,9 fN + 1,7 fN + 7,0 fN + 9,0 αrel 36 36 37 37 39 37 35 34 33 40 MHz MHz MHz MHz MHz MHz 3 Mar 11, 2005 40 42 42 48 42 42 38 40 36 46 — — — — — — — — — — dB dB dB dB dB dB dB dB dB dB SAW Components B4956 85,38 MHz Low-Loss Filter for Mobile Communication Data Sheet Normalized transfer function (balanced/balanced): Normalized transfer function (passband, balanced/balanced): 4 Mar 11, 2005 SAW Components B4956 85,38 MHz Low-Loss Filter for Mobile Communication Data Sheet Normalized transfer function (wideband, balanced/balanced): 5 Mar 11, 2005 SAW Components B4956 85,38 MHz Low-Loss Filter for Mobile Communication Data Sheet Figure 1: Matching network for 1570Ω / 500Ω configuration B4956 B7104 INPUT Input 1570 Ω balanced Ω 1900 balanced 10 5 361nH nH 261 Q=45 267 258nH nH Q=45 9 OUTPUT 500 Ω Output balanced 2100 Ω balanced 4 pins 2,7 GND balanced input: pins 9,10 balanced output: pins 4,5 not connected: 1,3,6,8 Figure 2: Test matching network (Element values depend on pcb layout) B4956 B7104 50 Ω 4.7 pF 4.7 pF 1:4 8,2 nH 180 nH Q=40 8,2 nH 10 5 220 nH 9 4 2.2 pF fine tuning cap 50 Ω 12 pF 5.6 pF 180 nH 2.7 pF fine tuning cap 180 nH Q=40 12 pF 4.7 pF 4:1 pins 2,7 GND balanced input: pins 9,10 balanced output: pins 4,5 not connected: 1,3,6,8 Published by EPCOS AG Surface Acoustic Wave Components Division, SAW MC PD P.O. Box 80 17 09, 81617 Munich, GERMANY EPCOS AG 2005. Reproduction, publication and dissemination of this brochure and the information contained therein without EPCOS’ prior express consent is prohibited. Purchase orders are subject to the General Conditions for the Supply of Products and Services of the Electrical and Electronics Industry recommended by the ZVEI (German Electrical and Electronic Manufacturers’ Association), unless otherwise agreed. This brochure replaces the previous edition. 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. 6 Mar 11, 2005