MSM7602

The MSM7602 is an improved version of the MSM7520 with the same basic configuration. The MSM7602 uses a 19.2 MHz clock frequency to meet PHS, the 3/5 V power supply (2.7 V to 5.5 V), and compact packaging. Also, this device adds the howling detecter control pins and main clook output pins.

MSM7603

The MSM7603 is an improved version of the MSM7602 with basically the same configuration, and offers twice the cancelable echo delay time of the MSM7602. The MSM7603 is a low-power CMOS IC device for canceling echo (in an acoustic system or telephone line) generated in a speech path.

MSM7704

The MSM7704-01/7704-02/7704-03 are two-channel CODEC CMOS ICs for voice signals ranging from 300 to 3400 Hz. These devices contain filters for A/D and D/A conversion. Designed especially for a single-power supply and low-power applications, these devices contain two-channel AD/DA converters in a single chip, and achieve a reduced footprint and a reduced number of external components. The MSM7704-01/7704-02/7704-03 are best suited for an analog interface to an echo canceller DSP used in digital telephone terminals, digital PABXs, and hands-free terminals.