Datasheet > 821024

821024

更新时间： 2024-11-11 01:10:11

品牌	Logo	应用领域
艾迪悌 - IDT		PC
页数	文件大小	规格书
14页	696K
描述
QUAD NON-PROGRAMMABLE PCM CODEC

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数据手册

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821024 数据手册

QUAD NON-PROGRAMMABLE

PCM CODEC

821024

DATASHEET

DESCRIPTION

FEATURES

• 4 channel CODEC with on-chip digital ﬁlters

• Selectable A-law or μ-law companding

• Master clock frequency selection: 2.048 MHz, 4.096 MHz or

8.192 MHz

The IDT821024 is a single-chip, four channel PCM CODEC with on-

chip ﬁlters. The device provides analog-to-digital and digital-to-analog

conversions and supports both a-law and μ−law companding. The digital

ﬁlters in IDT821024 provides the necessary transmit and receive ﬁltering for

voice telephone circuit to interface with time-division multiplexed systems.

All of the digital ﬁlters are performed in digital signal processors operating

from an internal clock, which is derived from MCLK. The ﬁxed ﬁlters set

the transmit and receive gain and frequency response.

- Internal timing automatically adjusted based on MCLK and frame

sync signal

• Separate PCM and master clocks

• Single PCM port with up to 8.192 MHz data rate (128 time slots)

• Transhybrid balance impedance hardware adjustable via external

components

• Transmit gains hardware adjustable via external components

• Low power +5.0 V CMOS technology

In the IDT821024 the PCM data is transmitted to and received from the

PCM highway in time slots determined by the individual Frame Sync signals

(FSR_nand FSX_n, where n = 1-4) at rates from 256 KHz to 8.192 MHz. Both

Long and Short Frame Sync modes are available in the IDT821024.

The IDT821024 can be used in digital telecommunication applications

such as PBX, Central Ofﬁce Switch, Digital Telephone and Integrated

Voice/Data Access Unit.

• +5.0 V single power supply

• Package available: 32 pin PLCC, 44 pin TQFP

FUNCTIONAL BLOCK DIAGRAM

821024 REVISION A JUNE 25, 2014

12 3 4 5 6 7...14

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与821024相关器件

型号	品牌	获取价格	描述	数据表
82-10-24	APITECH	获取价格	0MHz - 3000MHz RF/MICROWAVE FIXED ATTENUATOR
821024_14	IDT	获取价格	QUAD NON-PROGRAMMABLE PCM CODEC
821024J8	IDT	获取价格	PCM Codec, A/MU-Law, 1-Func, CMOS, PQCC32, PLASTIC, LCC-32
821024JG	IDT	获取价格	QUAD NON-PROGRAMMABLE PCM CODEC
821024JG8	IDT	获取价格	PCM Codec, A/MU-Law, 4-Func, CMOS, PQCC32
821024PP	IDT	获取价格	PCM Codec, A/MU-Law, 1-Func, CMOS, PQFP44, TQFP-44
821024PPG	IDT	获取价格	QUAD NON-PROGRAMMABLE PCM CODEC
82102C	MURATA	获取价格	Miniature Surface Mount Power Inductors
82-10-31	APITECH	获取价格	Fixed Attenuator, 0MHz Min, 3000MHz Max
82-10-32	APITECH	获取价格	Fixed Attenuator, 0MHz Min, 3000MHz Max