B39860-B4874-Z710

B4874 EPCOS | Alldatasheet

Document overview

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Technical content

IF Filters for Narrowband Cellular Phones Series/Type: B4874 The following products presented in this data sheet are being withdrawn. For further information please contact your nearest EPCOS sales office, which will also support you in selecting a suitable substitute. The addresses of our worldwide sales network are presented at www.epcos.com/sales. Ordering Code Substitute ProductDate of Withdrawal Deadline Last Orders Last Shipments B39860B4874Z710 2003-03-07 2003-07-31 2003-09-30

2 May 08, 2001

85,38 MHzLow Loss Filter for Mobile Communication Data Sheet Ceramic packageQCC10B Dimensions in mm, approx. weight 0,23 g

Features

■ Low-loss IF filter for mobile telephone ■ Channel selection in AMPS/D-AMPS systems ■ Filter surface passivated ■ High stopband attenuation ■ Low insertion loss ■ Balanced or unbalanced operation possible ■ Package forSurfaceM ountedTechnology (SMT ) Terminals ■ Ni, gold plated Pin configuration

10 Input

5 Output

9 Balanced input or input ground

4 Balanced output or output ground

1,3,6,8 Case ground 2,7 Not connected ElectrostaticSensitiveD evice (ESD ) Type Ordering code Marking and Package according to Packing according to B4874 B39860-B4874-Z710 C61157-A7-A49 F61064-V8035-Z000 Maximum ratings Operable temperature range T – 30/+ 85 ˚C Storage temperature rangeTstg – 40/+ 85 ˚C DC voltage VDC 13 V Source power Ps 10 dBm

3 May 08, 2001

85,38 MHzLow Loss Filter for Mobile Communication Data Sheet Characteristics Operating temperature range: T = -30˚C ... 85˚C Terminating source impedance: ZS = 1000Ω || 2600 nH Terminating load impedance: ZL = 1000Ω || 2600 nH 1)Temperature dependance offc: fc(T) =fc(T0)(1 +TC f(T –T0)2) min. typ. max. Nominal frequency fN — 85,38 — MHz 3 dB Bandwidth +-14 — — kHz Minimum insertion attenuation α min — 3,0 4,5 dB (including losses in the matching network) Amplitude ripple(p-p) Δα fN – 12,0 kHz ... fN + 12,0 kHz — 0,3 1,5 dB Group delay ripple (p-p) Δτ fN – 12,0 kHz ... fN + 12,0 kHz — 3,0 10,0 µs Relative attenuation(relative toα min) α rel fN ± 14,0 kHz — 0,5 3,0 dB fN ± 60,0 kHz ... fN ± 120,0 kHz 25 32 — dB fN ± 120,0 kHz 45 57 — dB fN ± 120,0 kHz ... fN ± 2,5 MHz 40 57 — dB Impedance within the passband Input: ZIN = R IN ||C IN — 1000 || 1,4 — Ω || pF Output:ZOUT = R OUT ||C OUT — 1000 || 1,4 — Ω || pF Temperature coefficient of frequency 1) TC f — – 0,036 — ppm/K 2 Turnover temperature T0 —2 5 — ˚ C

4 May 08, 2001

85,38 MHzLow Loss Filter for Mobile Communication Data Sheet Test matching networks to 50Ω (element values depend on pcb layout) a) Unbalanced - unbalanced matching network b) Balanced - balanced matching network Input: Pin 10 Output: Pin 5 L s1 = 390 nH C p2 = 4,7 pF C p3 = 4,7 pF Ls4 = 390 nH Input: Pins 10 and 9 Output: Pins 5 and 4 C s1 = 8,2 pF C s2 = 8,2 pF Lp1 = 680 nH Lp2 = 680 nH C s3 = 10 pF C s4 = 8,2 pF Note : The balanced - balanced network is realized using M/A-COM 1:4 baluns TP-103. The insertion attenuation of each balun is 0,4 dB at fN . The loss of the baluns is not included in the specified filter insertion attenuation. S-Parameters of the M/A-COM 1:4 baluns TP-103 are available on re- quest. The level of ultimate suppression may be limited by electromagnetic feedthrough depending on the layout of the pcb and the arrangement of the matching components. The above mentioned characteristics can be realized either in balanced or in unbalanced mode of operation. For more details see our application note PCB Layout for Highly Selective IF Filters.

5 May 08, 2001

85,38 MHzLow Loss Filter for Mobile Communication Data Sheet Normalized transfer function (passband, measured single ended - single ended) Normalized transfer function (wideband, measured single ended - single ended)

6 May 08, 2001

85,38 MHzLow Loss Filter for Mobile Communication Data Sheet Published by EPCOS AG Surface Acoustic Wave Components Division, OFW E MF P.O. Box 80 17 09, D-81617 München  EPCOS AG 1999. All Rights Reserved. As far as patents or other rights of third parties are concerned, liability is only assumed for compo- nents per se, not for applications, processes and circuits implemented within components or assemblies. The information describes the type of component and shall not be considered as assured characteristics. Terms of delivery and rights to change design reserved. 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.