B7959 Datasheet, PDF (9/15 Pages) EPCOS – SAW Duplexer W-CDMA Band 4 / CDMA 1x AWS Band

SAW Components
SAW Duplexer
Data sheet
Annotation for characteristics section
B7959
1732.5 / 2132.5 MHz
Attenuation of W-CDMA signal (Power Transfer Function, α_W-CDMA) is determined by
∫∞ Sds21(f )HRRC(f – fCarrier) 2df
–∞
with f_Carrier according to 3GPP TS 25.101 (e.g. for UMTS pass band, f_Carrier ranges from 882.4 MHz
(lowest Tx channel) to 912.6 MHz (highest Tx channel)). Here, H_RRC(f) is the transfer function of the
root-raised cosine transmit pulse shaping filter according to 3GPP TS 25.101 with the following nor-
malization:
∫∞ HRRC(f ) 2df = 1
–∞
Please read cautions and warnings and
important notes at the end of this document.
9 February 11, 2011