FEDL7533V-01

Issue Date: Jun. 22, 2012

MSM7533V

2ch Single Rail CODEC

GENERAL DESCRIPTION

The MSM7533V is 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 MSM7533V is 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

• ITU-T Companding law

MSM7533V: μ/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)

/* DIP PKG is End Of Life.

24-pin plastic SOP (SOP24-P-430-1.27-K)

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