B4811 EPCOS | Alldatasheet
Document overview
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Technical content
Features
- Low-loss IF filter for mobile telephone
- Channel selection in GSM, PCN systems
- Ceramic SMD package Terminals
- Gold-plated Ni Dimensions in mm, approx. weight 0,23 g Pin configuration 9,10 Input, balanced or unbalanced 4,5 Output, balanced or unbalanced
7 External Coil
1,3,6,8 Case - Ground
2 Not connected
ElectrostaticSensitiveD evice (ESD ) Type Ordering code Marking and Package according to Packing according to B4811 B39191-B4811-Z710 C61157-A7-A49 F61064-V8035-Z000 Maximum ratings Operable temperature range T – 25 /+75 ˚C Storage temperature rangeTstg – 40/+ 85 ˚C DC voltage VDC 0V Source power Ps 10 dBm source impedance 50 Ω
Preliminary format of data sheet Terms of delivery and rights to change design reserved. OFW EM EU Page 2 of 3 Nov. 18, 1998 SAW Components Data Sheet B4811 188,0 MHzLow-Loss Filter Characteristics Operating temperature range: T = -25 ˚C to + 75 ˚C Terminating source impedance: ZS = 580Ω || 210 nH Terminating load impedance: ZL = 820Ω || 255 nH External coil LC = 120 nH 1)Temperature dependance offc: fc(T) =fc(T0)(1 +TC f(T –T0)2) min. typ. max. Center frequency fc — 188,0 — MHz (center frequency between 3 dB points) Minimum insertion attenuation α min 3,5 5,0 6,5 dB (including matching network) Variation in insertion loss Δα min — 1,0 3,0 dB Amplitude ripple in passband(p-p) Δα fc -60,0 kHz .. fc+60,0 kHz — 1,0 2,0 dB fc -80,0 kHz .. fc+80,0 kHz — 1,5 3,0 dB Group delay at fc τ 3,0 4,0 5,0 µs Group delay ripple (p-p) Δτ fc -80,0 kHz .. fc+80,0 kHz — 1,0 1,5 µs Relative attenuation(relative toα min) α rel fc ± 200 kHz ... fc ± 300 kHz 6,5 8 — dB fc ± 300 kHz ... fc ± 400 kHz 18 25 — dB fc ± 400 kHz ... fc ± 600 kHz 30 40 — dB fc ± 600 kHz ... fc ± 1,6 MHz 35 48 — dB fc ± 1,6 MHz ... fc ± 3,0 MHz 36 50 — dB fc ±3,0 MHz ... fc± 75,0 MHz 42 50 — dB fc-12,0MHz 50 55 — dB Impedance at 188,0 MHz Input: ZIN = R IN ||C IN — 580 ||3,4 — Ω || pF Output:ZOUT = R OUT ||C OUT — 820 ||2,8 — Ω || pF Temperature coefficient of frequency 1) TC f — – 0,036 — ppm/K 2 Turnover temperature T0 —2 0 — ˚ C
Preliminary format of data sheet Terms of delivery and rights to change design reserved. OFW EM EU Page 3 of 3 Nov. 18, 1998 SAW Components Data Sheet B4811 188,0 MHzLow-Loss Filter Test matching network to 50Ω (element values depend on pcb layout) Transfer function C p1 = 12,0 pF C p4 = 10,0 pF Ls2 = Ls3 = 82 nH Lc = 120nH