■ DESCRIPTION

The F4 series are timing extraction filter used in the high-grade digital transmission equipment like wide-band ISDN. The F4 series uses a single lithium tantalate piezoelectric crystal (LiTaO3) that has large electromechanical coupling coefficient, and a unique SAW resonator. That provides wide bandwidths, insertion loss, and exceptional stability in VHF band until 300MHz.

■ FEATURES

• Wide frequency range: 50 to 300MHz

• Wide band width: 0.3 to 1.0

• Low insertion loss: 6dB or less

• Excellent temperature characteristics: ±200 ppm or less (0 to 60°C)

• No adjustment is required due to small frequency deviation: ∆fo < ±500ppm

• High reliable hermetically sealed package

• Small type, and compatible with 14-pin DIP IC