SAW Components Data Sheet B7721 SAW Components B7721 942,5 MHz Low-Loss Filter for Mobile Communication Data Sheet Features Chip sized SAW package DCS6K ■ Low-loss RF filter for mobile telephone EGSM system, receive path Low amplitude ripple Usable passband 35 MHz Unbalanced to balanced operation Excellent symmetry Impedance transformation from 50 Ω to 200 Ω ■ Suitable for GPRS class 1 to 12 ■ Ceramic package for Surface Mounted Technology (SMT) ■ Pb-free 0,1 ■ ■ ■ ■ ■ 5 6 0,1 4 0,5 bottom view 3 2 1 0,8 side view 2,0 0,5 top view 2,5 Terminals ■ Ni, gold-plated Dimensions in mm Pin configuration 2 4, 6 1, 3, 5 1, 5 Type B7721 Input, unbalanced Balanced outputs To be grounded Case ground Ordering code Marking and Package Packing B39941–B7721–C910 according to C61157-A7-A97 according to F61074-V8153-Z000 Electrostatic Sensitive Device (ESD) Maximum ratings Operable temperature range Storage temperature range DC voltage ESD voltage Input power at GSM850, GSM900 GSM1800 and GSM1900 Tx bands T Tstg VDC VESD PIN – 25 / + 85 – 40 / + 85 5 100 15 2 ˚C ˚C V V dBm peak power of GSM signal, duty cycle 4:8 Oct 25, 2002 SAW Components B7721 942,5 MHz Low-Loss Filter for Mobile Communication Data Sheet Characteristics Operating temperature range: Terminating source impedance: Terminating load impedance: T = 25 ± 2 ˚C ZS = 50 Ω ZL = 200 Ω || 68 nH min. Center frequency fC Maximum insertion attenuation 925,0 ... 960,0 αmax MHz typ. max. — 942,5 — MHz — 2,4 2,8 dB dB ∆α Amplitude ripple (p-p) 925,0 ... 960,0 MHz — 1,1 1,5 925,0 ... 960,0 MHz — 2,2 2,4 925,0 ... 960,0 MHz — 2,0 2,4 Output phase balance φ(S31)−φ(S21) 925,0 ... 960,0 MHz -5 — 5 degree Output amplitude balance (|S31/S21|) 925,0 ... 960,0 MHz -0,5 — 0,5 dB 20 20 20 20 38 29 50 31 — — — — dB dB dB dB 50 30 20 23 50 50 50 40 40 64 39 26 30 70 72 64 66 66 — — — — — — — — — dB dB dB dB dB dB dB dB dB Input VSWR Output VSWR Diff. to common mode suppression 925,0 ... 960,0 824,0 ... 995,0 1648,0 ... 1990,0 3296,0 ... 3980,0 Attenuation 0,0 ... 880,0 880,0 ... 905,0 905,0 ... 915,0 980,0 ...1050,0 1050,0 ...1850,0 1850,0 ...1920,0 1920,0 ...2880,0 2880,0 ...4000,0 4000,0 ...6000,0 Ssc12 MHz MHz MHz MHz α MHz MHz MHz MHz MHz MHz MHz MHz MHz 3 Oct 25, 2002 SAW Components B7721 942,5 MHz Low-Loss Filter for Mobile Communication Data Sheet Characteristics Operating temperature range: Terminating source impedance: Terminating load impedance: T = -10 to +80 ˚C ZS = 50 Ω ZL = 200 Ω || 68 nH min. Center frequency fC Maximum insertion attenuation 925,0 ... 960,0 αmax MHz typ. max. — 942,5 — MHz — 2,4 3,0 dB dB ∆α Amplitude ripple (p-p) 925,0 ... 960,0 MHz — 1,1 1,7 925,0 ... 960,0 MHz — 2,2 2,4 925,0 ... 960,0 MHz — 2,0 2,4 Output phase balance φ(S31)−φ(S21) 925,0 ... 960,0 MHz -5 — 5 degree Output amplitude balance (|S31/S21|) 925,0 ... 960,0 MHz -0,5 — 0,5 dB 20 20 20 20 38 29 50 31 — — — — dB dB dB dB 50 30 20 23 50 50 50 40 40 64 37 26 29 70 72 64 66 66 — — — — — — — — — dB dB dB dB dB dB dB dB dB Input VSWR Output VSWR Diff. to common mode suppression 925,0 ... 960,0 824,0 ... 995,0 1648,0 ... 1990,0 3296,0 ... 3980,0 Attenuation 0,0 ... 880,0 880,0 ... 905,0 905,0 ... 915,0 980,0 ...1050,0 1050,0 ...1850,0 1850,0 ...1920,0 1920,0 ...2880,0 2880,0 ...4000,0 4000,0 ...6000,0 Ssc12 MHz MHz MHz MHz α MHz MHz MHz MHz MHz MHz MHz MHz MHz 4 Oct 25, 2002 SAW Components B7721 942,5 MHz Low-Loss Filter for Mobile Communication Data Sheet Transfer function (measurement) Transfer function (wideband measurement) 5 Oct 25, 2002 SAW Components B7721 942,5 MHz Low-Loss Filter for Mobile Communication Data Sheet Published by EPCOS AG Surface Acoustic Wave Components Division, SAW MC WT P.O. Box 80 17 09, 81617 Munich, GERMANY EPCOS AG 2002. 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 Oct 25, 2002