SAW Components
Description
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SAW Components
Data Sheet B3874
SAW Components Low-Loss Filter Data Sheet
B3874 71,1 MHz
Ceramic package DCC18
Features
s s s s
Low-loss IF filter for CDMA base station Temperature stable Ceramic SMD package Unbalanced or balanced operation
Terminals
s Gold plated
Dimensions in mm, approx.
weight 0,8 g Pin configuration 1 10 6 5 3, 8 2, 4, 7, 9 Input or balanced input Input ground or balanced input Output or balanced output Output ground or balanced output Ground Case ground
Type B3874
Ordering code B39710-B3874-U210
Marking and Package according to C61157-A7-A54
Packing according to F61074-V8166-Z000
Electrostatic Sensitive Device (ESD)
Maximum ratings Operable temperature range Storage temperature range DC voltage Source power
T Tstg VDC Ps
–40 / +85 –40 / +85 5 10 2
˚C ˚C V dBm May 06, 2004
SAW Components Low-Loss Filter Data Sheet
Characteristics Operating temperature range: Terminating source impedance: Terminating load impedance: T = 0 to +85 ˚C ZS = 50 Ω and external matching network ZL = 50 Ω and external matching network
B3874 71,1 MHz
min.
Nominal frequency Minimum insertion attenuation 3,75 dB bandwidth αrel Amplitude ripple (p-p) Phase Linearity (rms) Absolute group delay Group delay ripple (p-p) ≤ 3,75 dB
typ.
71,1 9,0
max.
— 11,0 MHz dB
fN
αN
— —
B3,75dB
∆α ∆ϕ τ ∆τ αrel
1,18 — — — —
1,24 0,5 1,3 3,1 320
— 1,0 2,0 — 450
MHz dB deg µs ns
fN ± 525 kHz fN ± 630 kHz fN ± 630 kHz fN ± 525 kHz
Relative attenuation (relative to αN) 31,0 MHz .
.
.
fN − 4900 kHz fN − 4900 kHz .
.
.
fN − 900 kHz fN − 900 kHz .
.
.
fN − 750 kHz fN + 750 kHz .
.
.
fN + 900 kHz fN + 900 kHz .
.
.
fN + 4900 kHz fN + 4900 kHz .
.
.
500 MHz Input Return loss Output Return loss 3rd-order intercept point Temperature coefficient of frequency Turnover temperature
1) Temperature 1)
45 26 15 15 26 45 8 10
60 29 18 17 29 60 11 15 — –0,036 35
— — — — — — — — — — —
dB dB dB dB dB dB dB dB dB ppm/K2 ˚C
fN ± 525 kHz fN ± 525 kHz IP3 TCf T0
35 — —
depen...
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