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TSF903D65-S7 [TOKEN]

Front End Filters; 前端过滤器
TSF903D65-S7
型号： TSF903D65-S7
厂家： TOKEN ELECTRONICS INDUSTRY CO., LTD.    TOKEN ELECTRONICS INDUSTRY CO., LTD.
描述：

Front End Filters
前端过滤器

过滤器
文件： 总14页 (文件大小：455K)
中文：  中文翻译
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SAW Filters (TSF)  
TOKEN  
SAW  
RF / IF Filters  
Technology  
SAW Filters (TSF) Make New Waves  
in The Wireless World  
Preview  
With the growth of wireless communications, SAW filters have become a critical component for electronics  
manufacturers. Token develops and manufactures a complete line of our frequency control products utilizing  
industry standard packages in both Surface Mount and Through Hole designs.  
Token provides innovative low-cost, space-saving and energy-efficient designs with high volume off-shore  
manufacturing, leading technology and superior engineering resources in design and process manufacturing.  
Token’s SAW filters support all the major standards: EGSM, DCS,  
AMPS/CDMA/GSM850, PCS, WCDMA, WLAN, GPS, within the  
standard range of devices, offering a cost-effective solution for all  
applications.  
A new compact range of RF SAW filters uses chip-scale  
packaging specifically to address the demanding miniaturisation  
and performance requirements for new generations of mobile  
phones. Key features of the range include compatibility with lead-free (high-temperature) solder reflow  
while achieving high reliability against moisture, temperature, mechanical vibrations and shocks.  
In modern remote control applications, SAW resonators and front end filters are key components which  
transmit in the USA typically at 315 or 915 MHz and in Europe at 433.92 MHz or 868-870 MHz. These  
remote controls are used in systems for Remote Keyless Entry (RKE, wireless operation of a car’s  
central locking system), security alarms and garage door openers, electronic toll, RFID, short range data  
transmission, wireless Tire Pressure Monitoring (TPMS).  
Token SAW components provide stable frequencies for the RF carrier signal to transmit data over  
a range for the local oscillators of superhet receivers. The front-end filter in the receiver eliminates  
interference from the incoming RF signal, thus increasing selectivity and sensitivity in short-range  
devices.  
Our experienced engineering team can support your SAW application from the initial design through  
production. Custom designs are available utilizing high technology mask designs, wafer fabrication,  
assembly and complete reliability testing.  
For marketing discontinuations or second sourcing activities concerning RF Filter and IF Filter  
products, you are encouraged to contact our Sales Department so the request can be properly directed  
within Token.  
Version 2010  
rfq token.com.tw  
http://www.token.com.tw/  
01 of 14  
Front End Filters  
TOKEN  
SAW for Automotive Electronics & Remote Control Typical Specification  
SAW Filters for Automotive Electronics & Remote Control - Front end filters are key components which  
transmit in the USA typically at 315 or 915 MHz and in Europe at 433.92 MHz or 868-870 MHz In modern  
remote control applications.  
Package  
SMD Type  
Center Freq.  
(MHz)  
IL  
(dB)  
3dB BW  
(MHz)  
Part Number  
DIP Type  
TO-39  
TSF295D00-D1  
TSF302D00A-S4  
TSF302D00B-S7  
TSF303D825A-D1  
TSF303D825B-S4  
TSF303D875A-D1  
TSF303D875B-S4  
TSF310D00-S4  
TSF315D00A-D1  
TSF315D00B-D2  
TSF315D00C-S4  
TSF315D00D-S4  
TSF315D00E-S6  
TSF315D50-D1  
TSF318D00-D1  
TSF319D50-D1  
TSF345D00A-S6  
TSF345D00B-S4  
TSF372D50-D1  
TSF390D00-S4  
TSF391D25-D1  
TSF395D00-S4  
TSF401D65-S4  
TSF401D90-D1  
TSF418D00A-D1  
TSF418D00B-S4  
TSF419D20-S4  
TSF430D50A-D1  
TSF430D50B-D2  
TSF431D50A-D2  
TSF431D50B-S4  
TSF433D42A-S4  
TSF433D42B-S7  
TSF433D92A-D1  
TSF433D92B-D1  
TSF433D92C-D2  
TSF433D92D-S4  
TSF433D92E-S4  
TSF433D92F-S4  
295  
3.0  
2.5  
2.5  
3.0  
3.0  
3.0  
3.0  
3.0  
3.0  
3.0  
3.0  
2.5  
2.5  
3.0  
3.0  
2.5  
2.5  
3.0  
3.0  
3.0  
2.5  
3.0  
3.0  
3.0  
3.0  
3.0  
3.0  
3.0  
3.0  
2.5  
2.5  
3.5  
3.0  
3.0  
2.0  
3.0  
3.0  
2.0  
2.5  
0.6  
0.75  
0.75  
0.6  
0.6  
0.6  
0.6  
0.8  
0.6  
0.6  
0.6  
1.3  
1.3  
0.6  
0.6  
0.7  
4.5  
0.9  
0.6  
1.0  
0.6  
1.0  
0.6  
0.6  
0.6  
0.6  
1.2  
0.6  
0.6  
0.58  
0.58  
0.6  
0.9  
0.6  
0.73  
0.6  
0.6  
0.73  
0.6  
302  
QCC8C  
DCC6  
302  
303.825  
303.825  
303.875  
303.875  
310  
TO-39  
TO-39  
QCC8C  
QCC8C  
QCC8C  
315  
TO-39  
F-11  
315  
315  
QCC8C  
QCC8C  
QCC8B  
315  
315  
315.5  
318  
TO-39  
TO-39  
TO-39  
319.5  
345  
QCC8B  
QCC8C  
345  
372.5  
390  
TO-39  
TO-39  
QCC8C  
391.25  
395  
QCC8C  
QCC8C  
401.65  
401.9  
418  
TO-39  
TO-39  
418  
QCC8C  
QCC8C  
419.2  
430.5  
430.5  
431.5  
431.5  
433.42  
433.42  
433.92  
433.92  
433.92  
433.92  
433.92  
433.92  
TO-39  
F-11  
F-11  
QCC8C  
QCC8C  
DCC6  
TO-39  
TO-39  
F-11  
QCC8C  
QCC8C  
QCC8C  
rfq token.com.tw  
Version 2010  
http://www.token.com.tw/  
02 of 14  
Front End Filters  
TOKEN  
SAW for Automotive Electronics & Remote Control Typical Specification  
SAW Filters for Automotive Electronics & Remote Control - Front end filters are key components which  
transmit in the USA typically at 315 or 915 MHz and in Europe at 433.92 MHz or 868-870 MHz In modern  
remote control applications.  
Package  
SMD Type  
Center Freq.  
(MHz)  
IL  
(dB)  
3dB BW  
(MHz)  
Part Number  
DIP Type  
TO-39  
TSF295D00-D1  
TSF302D00A-S4  
TSF302D00B-S7  
TSF303D825A-D1  
TSF303D825B-S4  
TSF303D875A-D1  
TSF303D875B-S4  
TSF310D00-S4  
TSF315D00A-D1  
TSF315D00B-D2  
TSF315D00C-S4  
TSF315D00D-S4  
TSF315D00E-S6  
TSF315D50-D1  
TSF318D00-D1  
TSF319D50-D1  
TSF345D00A-S6  
TSF345D00B-S4  
TSF372D50-D1  
TSF390D00-S4  
TSF391D25-D1  
TSF395D00-S4  
TSF401D65-S4  
TSF401D90-D1  
TSF418D00A-D1  
TSF418D00B-S4  
TSF419D20-S4  
TSF430D50A-D1  
TSF430D50B-D2  
TSF431D50A-D2  
TSF431D50B-S4  
TSF433D42A-S4  
TSF433D42B-S7  
TSF433D92A-D1  
TSF433D92B-D1  
TSF433D92C-D2  
TSF433D92D-S4  
TSF433D92E-S4  
TSF433D92F-S4  
295  
3.0  
2.5  
2.5  
3.0  
3.0  
3.0  
3.0  
3.0  
3.0  
3.0  
3.0  
2.5  
2.5  
3.0  
3.0  
2.5  
2.5  
3.0  
3.0  
3.0  
2.5  
3.0  
3.0  
3.0  
3.0  
3.0  
3.0  
3.0  
3.0  
2.5  
2.5  
3.5  
3.0  
3.0  
2.0  
3.0  
3.0  
2.0  
2.5  
0.6  
0.75  
0.75  
0.6  
0.6  
0.6  
0.6  
0.8  
0.6  
0.6  
0.6  
1.3  
1.3  
0.6  
0.6  
0.7  
4.5  
0.9  
0.6  
1.0  
0.6  
1.0  
0.6  
0.6  
0.6  
0.6  
1.2  
0.6  
0.6  
0.58  
0.58  
0.6  
0.9  
0.6  
0.73  
0.6  
0.6  
0.73  
0.6  
302  
QCC8C  
DCC6  
302  
303.825  
303.825  
303.875  
303.875  
310  
TO-39  
TO-39  
QCC8C  
QCC8C  
QCC8C  
315  
TO-39  
F-11  
315  
315  
QCC8C  
QCC8C  
QCC8B  
315  
315  
315.5  
318  
TO-39  
TO-39  
TO-39  
319.5  
345  
QCC8B  
QCC8C  
345  
372.5  
390  
TO-39  
TO-39  
QCC8C  
391.25  
395  
QCC8C  
QCC8C  
401.65  
401.9  
418  
TO-39  
TO-39  
418  
QCC8C  
QCC8C  
419.2  
430.5  
430.5  
431.5  
431.5  
433.42  
433.42  
433.92  
433.92  
433.92  
433.92  
433.92  
433.92  
TO-39  
F-11  
F-11  
QCC8C  
QCC8C  
DCC6  
TO-39  
TO-39  
F-11  
QCC8C  
QCC8C  
QCC8C  
03 of 14  
Version 2010  
rfq token.com.tw  
http://www.token.com.tw/  
SAW for Digital Satellite Broadcasting  
TOKEN  
SAW for Automotive Electronics & Remote Control Typical Specification  
SAW Filters for Digital Satellite Broadcasting (DSB Receiver) - Television and radio broadcasting is being  
progressively digitized worldwide. The benefits are obvious: superior sound and picture quality, and many more  
channels to choose from. Token offers matching SAW filters for all digital broadcasting systems.  
Package  
Center Freq.  
(MHz)  
IL  
(dB)  
3dB BW  
(MHz)  
Part Number  
Application  
SMD Type  
DIP Type  
TSF480D00A-D5  
TSF480D00B-S4  
TSF480D00C-D5  
TSF480D00D-S4  
TSF480D00E-D5  
TSF480D00F-D5  
TSF480D00G-S4  
TSF480D00H-D1  
TSF480D00I-S4  
TSF480D00J-D5  
TSF479D50A-D5  
TSF479D50B-S4  
TSF479D50C-D5  
480  
21  
18  
18  
27  
27  
27  
36  
36  
16  
15.3  
38.6  
8
One-channel, Satellite Filters  
One-channel, Satellite Filters  
One-channel, Satellite Filters  
One-channel, Satellite Filters  
One-channel, Satellite Filters  
One-channel, Satellite Filters  
One-channel, Satellite Filters  
One-channel, Satellite Filters  
One-channel, Satellite Filters  
One-channel, Satellite Filters  
One-channel, Satellite Filters  
One-channel, Satellite Filters  
One-channel, Satellite Filters  
TO39-2  
TO39-2  
480  
21  
QCC8C  
480  
22.5  
22.5  
20  
480  
QCC8C  
480  
TO39-2  
TO39-2  
480  
21  
480  
21  
QCC8C  
QCC8C  
480  
15  
TO-39  
480  
12.5  
22  
480  
TO39-2  
TO39-2  
479.5  
479.5  
479.5  
21.5  
21.5  
18  
8
QCC8C  
6.5  
TO39-2  
F-11  
16  
(5.5 dB)  
TSF479D50D-D2  
TSF479D50E-S4  
TSF402D78B-S4  
479.5  
479.5  
402.78  
22  
22  
One-channel, Satellite Filters  
One-channel, Satellite Filters  
Two-channel, Satellite Filters  
16  
(5.5 dB)  
QCC8C  
QCC8C  
20.5 / 15.5 /  
20.0 28.0  
rfq token.com.tw  
Version 2010  
http://www.token.com.tw/  
04 of 14  
Saw for GPS Mobile Communications  
TOKEN  
RF Filters for GPS Typical Specification  
Package  
SMD Type  
Center Freq.  
BW  
(MHz)  
Part Number  
(MHz)  
IL(dB)  
DIP Type  
TSF1542D50-S9  
TSF1575D42A-S9  
TSF1575D42B-S6  
1542.50  
1575.42  
1575.42  
40  
2.4  
2.4  
3.5  
1.6  
1.6  
DCC6C  
DCC6C  
QCC8B  
05 of 14  
Version 2010  
rfq token.com.tw  
http://www.token.com.tw/  
Saw for WLAN Mobile Communications  
TOKEN  
IF Filters for Wireless LAN Typical Specification  
Package  
SMD Type  
Center Freq.  
(MHz)  
3db BW  
(MHz)  
Part Number  
IL(dB)  
DIP Type  
TSF280D00-S4  
280  
374  
374  
374  
374  
374  
374  
374  
374  
20  
11  
9
QCC8C  
TSF374D00A-D1  
TSF374D00B-D1  
TSF374D00C-S4  
TSF374D00D-S4  
TSF374D00E-S4  
TSF374D00F-S4  
TSF374D00G-S6  
TSF374D00H-S6  
22  
TO-39  
TO-39  
22  
8.5  
9
22  
QCC8C  
QCC8C  
QCC8C  
QCC8C  
QCC8B  
QCC8B  
22  
8.5  
9
19  
20.5  
23  
9
9
21  
9
rfq token.com.tw  
Version 2010  
http://www.token.com.tw/  
06 of 14  
Saw RF Filters for Cellular Phone  
TOKEN  
Typical Specification  
Package  
Center Freq.  
(MHz)  
BW  
(MHz)  
IL  
(dB)  
Part Number  
System  
SMD Type  
DIP Type  
TSF452D50-S7  
TSF462D50-S7  
TSF455D00-S7  
TSF465D00-S7  
TSF481D25-S7  
TSF491D25-S7  
TSF836D50-S9  
TSF881D50-S9  
TSF897D50A-S7  
TSF897D50B-S7  
TSF942D50-S7  
TSF900D00A-S7  
TSF900D00B-S9  
TSF945D00A-S7  
TSF945D00B-S9  
TSF902D50A-S9  
TSF902D50B-S7  
TSF947D50A-S9  
TSF947D50B-S7  
TSF1747D50-S9  
TSF1842D50-S9  
TSF1855D00-S9  
452.5  
462.5  
455.0  
465.0  
481.25  
491.25  
836.5  
881.5  
897.5  
897.5  
942.5  
900  
5.0  
4.6  
5.0  
4.6  
4.5  
4.5  
25  
25  
26  
30  
30  
30  
30  
30  
30  
30  
25  
30  
25  
75  
75  
30  
2.1  
2.5  
2.1  
2.5  
1.8  
2.4  
2.7  
2.7  
3.0  
2.7  
2.7  
2.7  
2.7  
2.7  
2.7  
2.7  
3.0  
2.7  
3.0  
3.5  
3.5  
3.0  
CDMA450 TX  
CDMA450 RX  
CDMA450 TX  
CDMA450 RX  
CDMA450 TX  
CDMA450 RX  
AMPS / CDMA TX  
AMPS / CDMA RX  
EGSM TX  
DCC6  
DCC6  
DCC6  
DCC6  
DCC6  
DCC6  
DCC6C  
DCC6C  
DCC6  
EGSM TX  
DCC6  
EGSM RX  
DCC6  
EGSM TX  
DCC6  
900  
EGSM TX  
DCC6C  
DCC6  
945  
EGSM RX  
945  
EGSM RX  
DCC6C  
DCC6C  
DCC6  
902.5  
902.5  
947.5  
947.5  
1747.5  
1842.5  
1855.0  
GSM TX  
GSM TX  
GSM RX  
DCC6C  
DCC6  
GSM RX  
PCN / DCS TX  
PCN / DCS RX  
K-PCS RX  
DCC6C  
DCC6C  
DCC6C  
07 of 14  
Version 2010  
rfq token.com.tw  
http://www.token.com.tw/  
Saw RF Filters for Cordless Phone  
TOKEN  
Typical Specification  
Package  
SMD Type  
Center Freq.  
(MHz)  
BW  
(MHz)  
IL  
(dB)  
Part Number  
DIP Type  
TSF903D65-S7  
TSF915D00A-S7  
TSF915D00B-S9  
TSF915D00C-S9  
TSF915D00D-S7  
TSF915D00E-S9  
TSF915D00F-S7  
TSF926D25-S7  
903.65  
915  
+2  
26  
26  
26  
26  
7
3.8  
3.5  
3.5  
3.5  
3.5  
3.2  
3.0  
3.5  
DCC6  
DCC6  
DCC6C  
DCC6C  
DCC6  
DCC6C  
DCC6  
DCC6  
915  
915  
915  
915  
915  
7
926.25  
+2  
Note: 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) Passband Ripple :+ 0.6 dB ;+ 1.0 dB (NDF25C)  
rfq token.com.tw  
Version 2010  
08 of 14  
http://www.token.com.tw/  
SAW Duplexers for Cordless Phone  
TOKEN  
Typical Specification  
Package  
SMD Type DIP Type  
QCC8C  
Lower Freq.  
(MHz)  
Upper Freq.  
(MHz)  
Part Number  
IL(dB)  
System  
TSF908D50A-S4  
TSF908D50B-S4  
TSF908D50C-S6  
TSF908D50D-S6  
TSF915D00A-S6  
TSF915D00B-S6  
TSF914D95A-S6  
TSF914D95B-S6  
TSF914D95C-D1  
TSF914D95D-D1  
TSF914D95E-S4  
TSF914D95F-S4  
TSF914D95G-S6  
TSF914D95H-S6  
TSF937D00A-D1  
TSF937D00B-D1  
TSF937D00C-S4  
TSF937D00D-S4  
TSF937D00E-S6  
TSF937D00F-S6  
886  
931  
3.5 / 3.5  
3.5 / 3.5  
3.5 / 3.5  
3.5 / 3.5  
3.5 / 3.5  
3.5 / 3.5  
3.5 / 3.5  
3.5 / 3.5  
3.5 / 3.5  
3.5 / 3.5  
3.5 / 3.5  
3.5 / 3.5  
3.5 / 3.5  
3.5 / 3.5  
3.5 / 3.5  
3.5 / 3.5  
3.5 / 3.5  
3.5 / 3.5  
3.5 / 3.5  
3.5 / 3.5  
CT1+  
886  
931  
CT1+  
QCC8C  
886  
931  
CT1+  
QCC8B  
886  
931  
CT1+  
QCC8B  
903  
927  
ISM band  
ISM band  
ISM band  
ISM band  
ISM band  
ISM band  
ISM band  
ISM band  
ISM band  
ISM band  
CT1  
QCC8B  
903  
927  
QCC8B  
903.45  
903.45  
903.75  
903.75  
903.75  
903.75  
903.75  
903.75  
914.5  
914.5  
914.5  
914.5  
914.5  
914.5  
926.45  
926.45  
926.25  
926.25  
926.25  
926.25  
926.25  
926.25  
959.5  
959.5  
959.5  
959.5  
959.5  
959.5  
QCC8B  
QCC8B  
TO-39  
TO-39  
QCC8C  
QCC8C  
QCC8B  
QCC8B  
TO-39  
CT1  
TO-39  
CT1  
QCC8C  
CT1  
QCC8C  
CT1  
QCC8B  
CT1  
QCC8B  
Version 2010  
rfq token.com.tw  
http://www.token.com.tw/  
09 of 14  
SAW Filters for Pager Application  
TOKEN  
Typical Specification  
Package  
SMD Type  
Center Freq.  
(MHz)  
BW  
(MHz)  
Part Number  
IL(dB)  
DIP Type  
F-11  
TSF139D00-D2  
TSF147D00A-D2  
TSF147D00B-S4  
TSF155D00A-D2  
TSF155D00B-S4  
TSF163D00A-D2  
TSF163D00B-S4  
TSF171D00A-D2  
TSF171D00B-S4  
TSF281D00A-D2  
TSF281D00B-S4  
TSF930D50A-D2  
TSF930D50B-S4  
TSF930D50C-S7  
139  
+4.0  
+4.0  
+4.0  
+4.0  
+4.0  
+4.0  
+4.0  
+4.0  
+4.0  
+3.1  
+4.0  
+2.0  
+2.0  
+2.0  
6.5 max.  
6.5 max.  
6.5 max.  
6.5 max.  
6.5 max.  
6.5 max.  
6.5 max.  
6.5 max.  
6.5 max.  
4.5 max.  
4.5 max.  
4.5 max.  
4.5 max.  
4.5 max.  
147  
F-11  
147  
QCC8C  
QCC8C  
QCC8C  
QCC8C  
QCC8C  
155  
F-11  
F-11  
F-11  
F-11  
F-11  
155  
163  
163  
171  
171  
281  
281  
930.5  
930.5  
930.5  
QCC8C  
DCC6  
10 of 14  
rfq token.com.tw  
Version 2010  
http://www.token.com.tw/  
SAW for Communication Equipment  
TOKEN  
Typical Specification  
Package  
SMD Type DIP Type  
SMP-53  
Lower Freq. Upper Freq.  
Part Number  
IL(dB)  
System  
(MHz)  
35.42  
96  
(MHz)  
TSF35D42-S2  
1.9 (1dB) 17.5  
GPS  
TSF96D00B-S3  
TSF96D00C-S1  
TSF110D00A-S4  
TSF110D00B-S1  
5 (1dB)  
13.5  
8.5  
3G BaseStation  
3G BaseStation  
GPS  
SMP-53-S  
96  
+10  
SMP-03  
110  
2.12 (3dB) 3.5  
4.0 (3dB) 9.0  
QCC8C  
110  
Wireless LAN / Bluetooth  
SMP-03  
TSF110D00C-S1  
TSF110D592A-S4  
TSF110D592B-S1  
TSF130D38A-S6  
TSF130D38B-S7  
TSF199D00-S3  
TSF204D00-S1  
TSF240D00-S4  
TSF243D95A-S7  
TSF243D95B-S7  
TSF243D95C-S9  
TSFD243D95D-S8  
TSF243D95E-S8  
TSF265D55-S8  
TSF426D00-S2  
110  
0.66 (1dB) 12  
SCDMA  
DECT  
SMP-03  
QCC8C  
SMP-03  
QCC8B  
DCC6  
110.592  
110.592  
130.38  
130.38  
199  
+0.576  
+0.576  
3.5  
3.5  
DECT  
+0.63 min. 5.5 max. AMPS / ADC  
+0.63 min. 5.5 max. AMPS / ADC  
+0.1  
7.0 max. GSM BaseStation  
SMP-53-S  
SMP-03  
QCC8C  
DCC6  
204  
0.7 (1dB) 10  
SCDMA  
Broadband  
PHS  
240  
+3.85  
+0.11  
+0.11  
+0.11  
+0.11  
+0.11  
+0.11  
11  
243.95  
243.95  
243.95  
243.95  
243.95  
265.55  
426  
2.0  
2.2  
2.0  
2.0  
2.2  
2.3  
PHS  
DCC6  
PHS  
DCC6C  
QCC8D  
QCC8D  
QCC8D  
PHS  
PHS  
PHS  
6.5 (3dB) 22  
Broadband Access /VOFDM SMP-53  
Version 2010  
rfq token.com.tw  
http://www.token.com.tw/  
11 of 14  
SAW Filters (TSF)  
TOKEN  
How to Order  
TSF  
302D00  
A
S1  
SAW Filters Part Type  
Center Freq.(MHz)  
Code  
Center Freq.  
302 MHz  
302D00  
310D00  
310 MHz  
391D25  
391.25 MHz  
Series No.: None, A, B, C, D  
Package: S1, S2, D1, D2, D3  
rfq token.com.tw  
Version 2010  
12 of 14  
http://www.token.com.tw/  
RF & IF Filter Applications  
TOKEN  
RF & IF Filter Applications  
RF Filters (front end)  
●
- The main key factor of insertion loss on system performance criticizes the application of resonant  
design principles such as LCRF (Longitudinally-Coupled Resonator Filter), IEF (Impedance  
ElementFilter), and IEF balanced bridge filters. With many year’s experience in SAW applications,  
Token takes advantages of these design principles for the development of low loss filters for front  
end applications.  
- A combination of two port resonators can be described as an LCRF design. Typically, a parallel  
connection of 4 two port resonators is used. This advantage allows very low loss by reducing resistive  
losses and avoided waveguide effects.  
- IEF composes the basic design principle for RF filters with one port resonators used as impedance  
elements. Resonators are constituted in a ladder configuration. The difference between the acoustic  
impedance of resonance and anti-resonance is used to achieved a filter performance. The resonators  
may be designed to have different resonant frequencies.  
- For wide-band, low-loss filters, Token takes advantage of different cuts of higher coupling substate  
material (LiNbO3 / LiTaO3).- TO-220 Style Power Package, Isolated Case, Non Inductive.  
IF Filters  
●
- There are various different design principles which are suitable for the design of IF SAW Filters.  
However, to meet the requirements perfectly is working on optimization.  
- Precision filter design meets most of the requirements such as phase ripple, group delay and low  
amplitude in combination with high close-in rejection and fabulous selectivity. The disadvantage  
of precision filters is their high insertion loss. Token SAW Resonator design makes low insertion  
loss and miniaturized package size served better.  
- SPUDT (Single Phase Unidirectional Transducer) filters combine transversal and resonant filter  
design principles to take advantage of optimization both. By optimizing the transduction and  
reflection of interdigital transducers, the filter performance can be improved while keeping the  
chip size the same. As a result of internal reflections, the signal length in the time domain is increased.  
- Token utilizes SFIT (Slanted Finger Interdigital Transducer) filter to provide a low insertion loss  
with a wide bandwith in SAW design. Token has developed a set of practical design tools to achieve  
low group delay ripple, and suppression of reflections including the triple transit signal.  
Version 2010  
rfq token.com.tw  
http://www.token.com.tw/  
13 of 14  
SAW Grossary (TSF)  
TOKEN  
SAW Grossary  
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  
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  
- 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.  
- 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  
Type of SAW devices  
- 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  
- IEF - Impedance Element Filter  
- Precision - Bidirectional, High Loss  
- TCRF - Transversely-Coupled Resonator filter  
- LCRF - Longitudinally-Coupled Resonator Filter  
- SFIT - Slanted Finger Interdigital Transducer  
- SPUDT - Single Phase Unidirectional Transducer  
Back to 1st Page - Saw Filters (TSF)  
rfq token.com.tw  
Version 2010  
14 of 14  
http://www.token.com.tw/  

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