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Part No.	B3863
Manufacturer	EPCOS
Size	108 Kbytes
Pages	7 pages
Description	SAW Components Low-Loss Filter 72,9746 MHz

Datasheet Summary with AI

# IF Filters for Basestations

## Product Withdrawal
️· Ordering Code: B39730B3863U210
️· Substitute Product: Not specified
️· Date of Withdrawal: 2006-12-01
️· Deadline for Last Orders: 2007-02-28
️· Last Shipments: 2007-05-31
️· Contact EPCOS sales office for substitutes.

## SAW Components B3863: 72.9746 MHz Low-Loss Filter
️· Data Sheet: B3863
️· Package: Ceramic DCC18

## Features
️· Low-loss IF filter for CDMA base station
️· Temperature stable
️· Ceramic SMD package
️· Supports unbalanced or balanced operation
️· Gold plated terminals

## Pin Configuration
️· 1: Input or balanced input
️· 10: Input ground or balanced input
️· 6: Output or balanced output
️· 5: Output ground or balanced output
️· 3, 8: Ground
️· 2, 4, 7, 9: Case ground

## Maximum Ratings
️· Operable temperature range: -40 to +85 ˚C
️· Storage temperature range: -40 to +85 ˚C
️· DC voltage: 0 V
️· Source power: 0 dBm

## Characteristics
️· Operating temperature range: -40 to +85 ˚C
️· Terminating source impedance: 50 Ω
️· Terminating load impedance: 50 Ω

## Key Specifications
️· Nominal frequency (fN): 72.9746 MHz
️· Minimum insertion attenuation (αN): 22.0 dB
️· 2.5 dB bandwidth (B2.5dB): 2.48 - 1.54 MHz
️· Amplitude ripple (p-p): 1.7 - 2.2 dB
️· Temperature coefficient of frequency (TCf): -0.036 ppm/K

## Test Matching Network
️· Cp1: 47 pF
️· Ls2: 470 nH || 1.2 pF || 1.2 pF
️· Ls3: 330 nH || 2.2 pF || 2.7 pF
️· Cp4: 100 pF