PMIC

GSM/DCS1800/PCS1900 Baseband Processing Chipset

GENERAL DESCRIPTION The Analog Devices GSM Baseband Processing Chipset provides a competitive solution for GSM based Mobile Radio Systems. It is designed to be fully integrated, easy to use, and compat ible with a wide range of product solutions. Examples are GSM900, DCS1800, PCS1900 handset

Enhanced Full-Duplex Speakerphone IC

General Description Most modern speakerphones use half-duplex operation, which alternates transmission between the far-end talker and the speakerphone user. This is done to ensure stability because the acoustic coupling between the speaker and microphone is much higher in speaker phones than in

High speed and Simple 4-Bit Microcontroller

GENERAL DESCRIPTION The MSM6422 is a low-power, single-chip device implemented in complementary metal-oxide semiconductor technology. The MSM6422 can be used in place of logic ICs configured around a main CPU, or for small-scale systems such as home electronic equipment. FEATURES • ROM : 2048

BUS-CONTROLLED AUDIO MATRIX

DESCRIPTION The TEA6422 switches 6 stereo audio inputs on 3 stereo outputs. All the switching possibilities are changed through the I2C BUS. ■ 6 Stereo Inputs ■ 3 Stereo Ouputs ■ Gain Control 0 dB/Mute for each Output ■ Cascadable (2 different addresses) ■ Serial Bus Controlled ■ Very

BUS-CONTROLLED AUDIO MATRIX

DESCRIPTION The TEA6422 switches 6 stereo audio inputs on 3 stereo outputs. All the switching possibilities are changed through the I2C BUS. ■ 6 Stereo Inputs ■ 3 Stereo Ouputs ■ Gain Control 0 dB/Mute for each Output ■ Cascadable (2 different addresses) ■ Serial Bus Controlled ■ Very