MSM7534RS 데이터 시트보기 (PDF) - Oki Electric Industry

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MSM7534RS

2ch Single Rail CODEC

Oki Electric Industry 

E2U0020-28-81

¡ Semiconductor ¡ Semiconductor

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Previous version: Nov. 1996

MSM7533H/7533V/7534

2ch Single Rail CODEC

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.

Power save mode:

7 mW Typ.

Power down mode: 0.05 mW Typ.

• ITU-T Companding law

74 mW Max.

16 mW Max.

0.3 mW Max.

VDD = 5 V

VDD = 5 V

VDD = 5 V

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 : MSM7533HRS)

(Product name : MSM7533VRS)

(Product name : MSM7534RS)

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

(Product name : MSM7533HGS-K)

(Product name : MSM7533VGS-K)

(Product name : MSM7534GS-K)

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