IF / RF Saw Filters (TSF)

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Surface Acoustic Wave Grossary (TSF)

RF Filters / IF Filters Technology for Wireless Communications - The Choice is Yours

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  • Saw Filters - TSF Series figure 2

Download PDF file Surface Acoustic Wave Grossary (TSF).

What is SAW - Surface Acoustic Wave

  • SAWs were first explained in 1885 by Lord Rayleigh, who described the surface acoustic mode of propagation and predicted its properties in his classic paper. Named after their discoverer, Rayleigh waves have a longitudinal and a vertical shear component that can couple with any media in contact with the surface. This coupling strongly affects the amplitude and velocity of the wave, allowing SAW sensors to directly sense mass and mechanical properties.

What is IDT - Interdigital Transducer

  • The theory developed by Blotekjaer ET AL., (1973) is used to study a periodic system of conducting electrodes deposited upon the surface of a piezoelastic half space - a SAW IDT. It is assumed that some of the electrodes are fed by external voltage sources. Exact expressions are obtained for elements of the transadmittance matrix, coupling currents and electrode potentials. Numerical and experimental results are presented.

Type of Saw devices
  • Precision - Bidirectional, High Loss
  • SPUDT -Single Phase Unidirectional Transducer
  • TCRF - Transversely-Coupled Resonator filter
 
  • LCRF - Longitudinally-Coupled Resonator Filter
  • SFIT - Slanted Finger Interdigital Transducer
  • IEF - Impedance Element Filter
 
Type of Saw Applications
  • SONET - Synchronous Optical Network
  • DECT - Digital European Cordless Telephone
  • GSM - Global System for Mobile Communications
  • VCO - Voltage Controlled Oscillator
  • PCS - Personal Communication System
  • IF - Intermediate Frequency Filter
  • RF - Radio Frequency Filter
  • 3G - Third Generation Systems
  • PCN - Personal Communications Network
  • PHS - Personal Handyphone System
 
  • CDMA - Code Division Multiple Access
  • SCDMA - Synchronous Code Division Multiple Access
  • VOFDM - Vector Orthogonal Frequency Division Multiplexing
  • TDMA - Time Division Multiple Access
  • EGSM - Extended Global System for Mobile
  • AMPS - Advanced Mobile Phone System
  • GSM - Global System for Mobile Communications
  • SDH - Synchronous Digital Hierarchy
  • DCS - Digital Communications System
  • PDC - Personal Digital Cellular

RF Filters for Cellular Phone (TSF) Mobile Communications

Part Number Center Freq.
(MHz)
BW(MHz) IL(dB) System Package
SMD Type DIP Type
TSF452D50-S7 452.5 5.0 2.1 CDMA450 TX DCC6  
TSF462D50-S7 462.5 4.6 2.5 CDMA450 RX DCC6  
TSF455D00-S7 455.0 5.0 2.1 CDMA450 TX DCC6  
TSF465D00-S7 465.0 4.6 2.5 CDMA450 RX DCC6  
TSF481D25-S7 481.25 4.5 1.8 CDMA450 TX DCC6  
TSF491D25-S7 491.25 4.5 2.4 CDMA450 RX DCC6  
TSF836D50-S9 836.5 25 2.7 AMPS / CDMA TX DCC6C  
TSF881D50-S9 881.5 25 2.7 AMPS / CDMA RX DCC6C  
TSF897D50A-S7 897.5 26 3.0 EGSM TX DCC6  
TSF897D50B-S7 897.5 30 2.7 EGSM TX DCC6  
TSF942D50-S7 942.5 30 2.7 EGSM RX DCC6  
TSF900D00A-S7 900 30 2.7 EGSM TX DCC6  
TSF900D00B-S9 900 30 2.7 EGSM TX DCC6C  
TSF945D00A-S7 945 30 2.7 EGSM RX DCC6  
TSF945D00B-S9 945 30 2.7 EGSM RX DCC6C  
TSF902D50A-S9 902.5 30 2.7 GSM TX DCC6C  
TSF902D50B-S7 902.5 25 3.0 GSM TX DCC6  
TSF947D50A-S9 947.5 30 2.7 GSM RX DCC6C  
TSF947D50B-S7 947.5 25 3.0 GSM RX DCC6  
TSF1747D50-S9 1747.5 75 3.5 PCN / DCS TX DCC6C  
TSF1842D50-S9 1842.5 75 3.5 PCN / DCS RX DCC6C  
TSF1855D00-S9 1855.0 30 3.0 K-PCS RX DCC6C  

RF Filters for ISM Band Cordless Phone (TSF) Mobile Communications

Part Number Center Freq.
(MHz)
BW(MHz) IL(dB) Package
SMD Type DIP Type
TSF903D65-S7 903.65 +2 3.8 DCC6  
TSF915D00A-S7 915 26 3.5 DCC6  
TSF915D00B-S9 915 26 3.5 DCC6C  
TSF915D00C-S9 915 26 3.5 DCC6C  
TSF915D00D-S7 915 26 3.5 DCC6  
TSF915D00E-S9 915 7 3.2 DCC6C  
TSF915D00F-S7 915 7 3.0 DCC6  
TSF926D25-S7 926.25 +2 3.5 DCC6  
  1. 1dB Bandwidth : 6.75 MHz (CH1~CH5) ; 6.50 MHz
  2. Insertion Loss : 23.0 dB typical ; 6.50 dB typical (NDF25C)
  3. Passband Ripple :+ 0.6 dB ;+ 1.0 dB (NDF25C)

Duplexers for Cordless Phone (TSF) Mobile Communications

Part Number Lower Freq.
(MHz)
Upper Freq.
(MHz)
IL(dB) System Package
SMD Type DIP Type
TSF908D50A-S4 886 931 3.5 / 3.5 CT1+ QCC8C  
TSF908D50B-S4 886 931 3.5 / 3.5 CT1+ QCC8C  
TSF908D50C-S6 886 931 3.5 / 3.5 CT1+ QCC8B  
TSF908D50D-S6 886 931 3.5 / 3.5 CT1+ QCC8B  
TSF915D00A-S6 903 927 3.5 / 3.5 ISM band QCC8B  
TSF915D00B-S6 903 927 3.5 / 3.5 ISM band QCC8B  
TSF914D95A-S6 903.45 926.45 3.5 / 3.5 ISM band QCC8B  
TSF914D95B-S6 903.45 926.45 3.5 / 3.5 ISM band QCC8B  
TSF914D95C-D1 903.75 926.25 3.5 / 3.5 ISM band   TO-39
TSF914D95D-D1 903.75 926.25 3.5 / 3.5 ISM band   TO-39
TSF914D95E-S4 903.75 926.25 3.5 / 3.5 ISM band QCC8C  
TSF914D95F-S4 903.75 926.25 3.5 / 3.5 ISM band QCC8C  
TSF914D95G-S6 903.75 926.25 3.5 / 3.5 ISM band QCC8B  
TSF914D95H-S6 903.75 926.25 3.5 / 3.5 ISM band QCC8B  
TSF937D00A-D1 914.5 959.5 3.5 / 3.5 CT1   TO-39
TSF937D00B-D1 914.5 959.5 3.5 / 3.5 CT1   TO-39
TSF937D00C-S4 914.5 959.5 3.5 / 3.5 CT1 QCC8C  
TSF937D00D-S4 914.5 959.5 3.5 / 3.5 CT1 QCC8C  
TSF937D00E-S6 914.5 959.5 3.5 / 3.5 CT1 QCC8B  
TSF937D00F-S6 914.5 959.5 3.5 / 3.5 CT1 QCC8B  

for Pager Applications (TSF) Mobile Communications

Part Number Center Freq.
(MHz)
BW(MHz) IL(dB) Package
SMD Type DIP Type
TSF139D00-D2 139 +4.0 6.5 max.   F-11
TSF147D00A-D2 147 +4.0 6.5 max.   F-11
TSF147D00B-S4 147 +4.0 6.5 max. QCC8C  
TSF155D00A-D2 155 +4.0 6.5 max.   F-11
TSF155D00B-S4 155 +4.0 6.5 max. QCC8C  
TSF163D00A-D2 163 +4.0 6.5 max.   F-11
TSF163D00B-S4 163 +4.0 6.5 max. QCC8C  
TSF171D00A-D2 171 +4.0 6.5 max.   F-11
TSF171D00B-S4 171 +4.0 6.5 max. QCC8C  
TSF281D00A-D2 281 +3.1 4.5 max.   F-11
TSF281D00B-S4 281 +4.0 4.5 max. QCC8C  
TSF930D50A-D2 930.5 +2.0 4.5 max.   F-11
TSF930D50B-S4 930.5 +2.0 4.5 max. QCC8C  
TSF930D50C-S7 930.5 +2.0 4.5 max. DCC6  

for Communication Equipment (TSF) Mobile Communications

Part Number Center Freq.
(MHz)
BW(MHz) IL(dB) System Package
SMD Type DIP Type
TSF35D42-S2 35.42 1.9 (1dB) 17.5 GPS SMP-53  
TSF96D00B-S3 96 5 (1dB) 13.5 3G BaseStation SMP-53-S  
TSF96D00C-S1 96 +10 8.5 3G BaseStation SMP-03  
TSF110D00A-S4 110 2.12 (3dB) 3.5 GPS QCC8C  
TSF110D00B-S1 110 4.0 (3dB) 9.0 Wireless LAN / Bluetooth SMP-03  
TSF110D00C-S1 110 0.66 (1dB) 12 SCDMA SMP-03  
TSF110D592A-S4 110.592 +0.576 3.5 DECT QCC8C  
TSF110D592B-S1 110.592 +0.576 3.5 DECT SMP-03  
TSF130D38A-S6 130.38 +0.63 min. 5.5 max. AMPS / ADC QCC8B  
TSF130D38B-S7 130.38 +0.63 min. 5.5 max. AMPS / ADC DCC6  
TSF199D00-S3 199 +0.1 7.0 max. GSM BaseStation SMP-53-S  
TSF204D00-S1 204 0.7 (1dB) 10 SCDMA SMP-03  
TSF240D00-S4 240 +3.85 11 Broadband QCC8C  
TSF243D95A-S7 243.95 +0.11 2.0 PHS DCC6  
TSF243D95B-S7 243.95 +0.11 2.2 PHS DCC6  
TSF243D95C-S9 243.95 +0.11 2.0 PHS DCC6C  
TSFD243D95D-S8 243.95 +0.11 2.0 PHS QCC8D  
TSF243D95E-S8 243.95 +0.11 2.2 PHS QCC8D  
TSF265D55-S8 265.55 +0.11 2.3 PHS QCC8D  
TSF426D00-S2 426 6.5 (3dB) 22 Broadband Access / VOFDM SMP-53  

Order Codes (TSF)

TSF 302D00 A S1
Part Number
Center Freq.(MHz)
302D00 302 MHz
310D00 310 MHz
391D25 391.25 MHz
Series No.
None
A
B
C
D
Package
S1
S2
D1
D2
D3