Overview

The LA8604M is a narrowband FM IF stage IC that incorporates all the functional blocks for a complete IF stage, including noise filtering, making it ideal for use in cordless telephones.

The LA8604M comprises a second-stage oscillator, a mixer, an IF amplifier, an FM detector, and noise detector, amplifier and rectifier circuits. A signal level meter output which is linear over a wide dynamic range of up to 70dB is also incorporated.

The LA8604M operates from a 2.4 to 6V supply and is available in 24-pin MFPs.

Features

• On-chip mixer, IF amplifier and limiter.

• On-chip noise filter buffer.

• 70dB (typ) signal level meter linearity.

• Signal level meter output buffer.

• 2.4 to 6V supply.

• 24-pin MFP.