Document
www.DataSheet4U.com
SAW Components
Preliminary Data LF25A
SAW Components Low-Loss Filter for Mobile Communication Preliminary Data
LF25A 2017,5 MHz
Ceramic package DCC6C
Features
s Low-loss RF filter for mobile telephone
TD-SCDMA system
s Low amplitude ripple s Usable passband 15 MHz s No matching network required for operation
at 50 Ω
s Ceramic Package for Surface Mounted
Technology (SMT)
Terminals
s Ni, gold-plated
Dimensions in mm, approx. weight 0,037 g Pin configuration 2 1 5 6 3,4 Input Input - ground Output Output - ground Case ground
Type LF25A
Ordering code
Marking and Package according to C61157-A7-A67
Packing according to F61074-V8088-Z000
Electrostatic Sensitive Device (ESD) Maximum ratings Operable temperature range Storage temperature range DC voltage ESD voltage
T Tstg VDC VESD
– 20 / +55 – 40 / +85 3 50
˚C ˚C V V
2
Aug 9, 2001
SAW Components Low-Loss Filter for Mobile Communication Preliminary Data
Characteristics Operating temperature range: Terminating source impedance: Terminating load impedance:
LF25A 2017,5 MHz
T = 25 ± 2 ˚C ZS = 50 Ω ZL = 50 Ω
min. typ. 2017,5 max. — MHz
Center frequency Maximum insertion attenuation 2010,0 ...2025,0 Amplitude ripple (p-p) 2010,0 ...2025,0 Input VSWR 2010,0 ...2025,0 Output VSWR 2010,0 ...2025,0 Attenuation 0,0 1840,0 1980,0 2040,0 2095,0 2120,0 2160,0 2385,0 2410,0 4000,0 ...1840,0 ...1980,0 ...1995,0 ...2095,0 ...2120,0 ...2160,0 ...2385,0 ...2410,0 ...4000,0 ...6000,0 MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz
fc
αmax MHz ∆α MHz
—
—
2,4
3,0
dB
—
0,2
0,5
dB
— — α 29 17 5 9 17 21 31 32 22 10
1,4 1,8
1,6 2,0
32 19 9 11 19 23 33 35 26 15
— — — — — — — — — —
dB dB dB dB dB dB dB dB dB dB
3
Aug 9, 2001
SAW Components Low-Loss Filter for Mobile Communication Preliminary Data
Characteristics Operating temperature range: Terminating source impedance: Terminating load impedance:
LF25A 2017,5 MHz
T = -20 to +55˚C ZS = 50 Ω ZL = 50 Ω
min. typ. 2017,5 max. — MHz
Center frequency Maximum insertion attenuation 2010,0 ...2025,0 Amplitude ripple (p-p)
fc
αmax MHz ∆α
—
—
2,7
3,5
dB
— Input VSWR 2010,0 ...2025,0 Output VSWR 2010,0 ...2025,0 Attenuation 0,0 1840,0 1980,0 2040,0 2095,0 2120,0 2160,0 2385,0 2410,0 4000,0 ...1840,0 ...1980,0 ...1995,0 ...2095,0 ...2120,0 ...2160,0 ...2385,0 ...2410,0 ...4000,0 ...6000,0 MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz α 29 16 4 5 14 21 31 32 22 10 — MHz —
0,4
1,0
dB
1,4 1,8
1,7 2,1
32 19 7 9 18 23 33 35 26 15
— — — — — — — — — —
dB dB dB dB dB dB dB dB dB dB
4
Aug 9, 2001
SAW Components Low-Loss Filter for Mobile Communication Preliminary Data
Transfer function
LF25A 2017,5 MHz
Transfer function (wideband)
5
Aug 9, 2001
SAW Components Low-Loss Filter for Mobile Communication Preliminary Data
LF25A 2017,5 MHz
Published by EPCOS AG Surface Acoustic Wave Components Division, SAW MC WT P.O. Box 80 17 09, D-81617 München © EPCOS AG 2000. All Rights Reserved. Reproduction, publication and dissemination of this brochure and the information contained therein without EPCOS’ prior express consent is prohibited. The information contained in this brochure describes the type of component and shall not be considered as guaranteed characteristics. 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
Aug 9, 2001
.