MSM7534

E2U0020-28-81 ¡ Semiconductor MSM7533H/7533V/7534 ¡ Semiconductor 2ch Single Rail CODEC This version: Aug. 1998 MSM7533H/7533V/7534 Previous version: Nov. 1996 GENERAL DESCRIPTION The MSM7533 and MSM7534 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 MSM7533 and MSM7534 are best suited for an analog interface to an echo canceller DSP used in digital telephone terminals, digital PABXs, and hands free terminals. FEATURES Single power supply: +5 V Power consumption Operating mode: 35 mW Typ. 74 mW Max. VDD = 5 V Power save mode: 7 mW Typ. 16 mW Max. VDD = 5 V Power down mode: 0.05 mW Typ. 0.3 mW Max. VDD = 5 V ITU-T Companding law MSM7533H: m-law MSM7534: A-law MSM7533V: m/A-law pin selectable Built-in PLL eliminates a master clock The PCM interface can be switched between 2 channel serial/parallel Transmission clock: 64/128/256/512/1024/2048 kHz 96/192/384/768/1536/1544/200 kHz (During 2 channel serial mode, the 64 and 96 kHz clocks are disabled) Adjustable transmit gain Built-in reference voltage supply Analog output can directly drive a 600 W line transformer Package options: 20-pin plastic skinny DIP (DIP20-P-300-2.54-S1) (Product name : MSM7533...