821024J Integrated Device Technology (Idt), 821024J Datasheet

no-image

821024J

Manufacturer Part Number
821024J
Description
Audio Codec 4ADC / 4DAC 32-Pin PLCC
Manufacturer
Integrated Device Technology (Idt)
Type
PCMr
Datasheet

Specifications of 821024J

Package
32PLCC
Number Of Channels
4ADC /4 DAC
Number Of Dacs
4
Operating Supply Voltage
5 V

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
821024JIDT
Manufacturer:
IDT
Quantity:
7
FEATURES
FUNCTIONAL BLOCK DIAGRAM
The IDT logo is a registered trademark of Integrated Device Technology, Inc
INDUSTRIAL TEMPERATURE RANGE
2003 Integrated Device Technology, Inc.
4 channel CODEC with on-chip digital filters
Selectable A-law or -law companding
Master clock frequency selection: 2.048 MHz, 4.096 MHz or
8.192 MHz
- 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
+5.0 V single power supply
Package available: 32 pin PLCC, 44 pin TQFP
VOUT2
VOUT3
VOUT4
VOUT1
MCLK
IREF
CNF
IIN2
IIN3
IIN4
IIN1
Reference Circuits
Anolog Front End
Anolog Front End
Anolog Front End
Anolog Front End
QUAD NON-PROGRAMMABLE
PCM CODEC
Clock
CH1
CH2
CH3
CH4
&
DSP
1
DESCRIPTION
chip filters. The device provides analog-to-digital and digital-to-analog
conversions and supports both a-law and
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.
the PCM highway in time slots determined by the individual Frame Sync
signals (FSR
MHz. Both Long and Short Frame Sync modes are available in the
IDT821024.
such as PBX, Central Office Switch, Digital Telephone and Integrated Voice/
Data Access Unit.
The IDT821024 is a single-chip, four channel PCM CODEC with on-
In the IDT821024 the PCM data is transmitted to and received from
The IDT821024 can be used in digital telecommunication applications
n
and FSX
PCM Interface
PCM TSA 1
PCM TSA 2
PCM TSA 3
PCM TSA 4
Control
n
, where n = 1-4) at rates from 256 KHz to 8.192
FEBRUARY 9, 2009
law companding. The digital
PDN 1~ 4
PCLK
A
FSX1
FSR1
FSX2
FSR2
FSX3
FSR3
FSX4
FSR4
TSC
DR
DX
IDT821024
DSC-6034/4

Related parts for 821024J

821024J Summary of contents

Page 1

FEATURES 4 channel CODEC with on-chip digital filters Selectable A-law or -law companding Master clock frequency selection: 2.048 MHz, 4.096 MHz or 8.192 MHz - Internal timing automatically adjusted based on MCLK and frame sync signal Separate PCM and master ...

Page 2

IDT821024 QUAD NON-PROGRAMMABLE PCM CODEC PIN CONFIGURATIONS IIN1 IIN2 VOUT2 VCCA IREF AGND VOUT3 IIN3 IIN4 1 IIN2 2 VOUT2 VCCA 6 IREF 7 AGND VOUT3 11 IIN3 5 6 ...

Page 3

IDT821024 QUAD NON-PROGRAMMABLE PCM CODEC PIN DESCRIPTION Pin Number Name I/O PLCC TQFP AGND -- 10 7 VCCA -- 8 5 DGND -- 27 30 VCCD -- FSR1 23 25 ...

Page 4

IDT821024 QUAD NON-PROGRAMMABLE PCM CODEC PIN DESCRIPTION (cont’d) Pin Number Name I/O PLCC TQFP PDN1 2 39 PDN2 PDN3 32 37 PDN4 31 36 CNF 14, 15, 17 ...

Page 5

IDT821024 QUAD NON-PROGRAMMABLE PCM CODEC FUNCTIONAL DESCRIPTION The IDT821024 contains four channel PCM CODEC with on chip digital filters. It provides the four-wire solution for the subscriber line circuitry in digital switches. The device converts analog voice signal to digital ...

Page 6

IDT821024 QUAD NON-PROGRAMMABLE PCM CODEC OPERATING THE IDT821024 The following descriptions about operation applies to all four channels of the IDT821024. Power-on Sequence and Master Clock Configuration To power on the IDT821024 users should follow this sequence: 1. Apply ground; ...

Page 7

IDT821024 QUAD NON-PROGRAMMABLE PCM CODEC ABSOLUTE MAXIMUM RATINGS Rating Com’I & Ind’I Power Supply Voltage Voltage on Any Pin with Respect to Ground Package Power Dissipation Storage Temperature NOTE: Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause ...

Page 8

IDT821024 QUAD NON-PROGRAMMABLE PCM CODEC TRANSMISSION CHARACTERISTICS 0dBm0 is defined as 0.6832Vrms for A-law and 0.6778 Vrms for -law, both for 600 dBm0, 1020 Hz sine wave; the input amplifier is set for unity gain. The digital input is a ...

Page 9

IDT821024 QUAD NON-PROGRAMMABLE PCM CODEC Distortion Parameter Description STD Transmit Signal to Total Distortion Ratio X A-law : Input level = 0 dBm0 Input level = -30 dBm0 Input level = -40 dBm0 Input level = -45 dBm0 -law : ...

Page 10

IDT821024 QUAD NON-PROGRAMMABLE PCM CODEC Interchannel Crosstalk Parameter Description XT Transmit to Receive Crosstalk X-R XT Receive to Transmit Crosstalk R-X XT Transmit to Transmit Crosstalk X-X XT Receive to Receive Crosstalk R-R Intrachannel Crosstalk Parameter Description XT Transmit to ...

Page 11

IDT821024 QUAD NON-PROGRAMMABLE PCM CODEC TIMING CHARACTERISTICS Clock Parameter Description t1 PCLK Duty Cycle t2 PCLK Rise and Fall Time t3 MCLK Duty Cycle t4 MCLK Rise and Fall Time t5 PCLK Clock Period Transmit Parameter Description t11 Data Output ...

Page 12

IDT821024 QUAD NON-PROGRAMMABLE PCM CODEC PCLK t15 FSX/ FSR DX DR TSC Figure 3. PCM Interface Timing for Short Frame Mode PCLK FSX/ FSR DX DR TSC Figure 4. PCM Interface Timing for Long Frame Mode Time Slot 1 2 ...

Page 13

ORDERING INFORMATION XXXXXX Device Type Data Sheet Document History 01/16/2002 pgs 02/21/2002 pgs. 1-4, 13 09/10/2002 pg. 8 01/08/2003 pgs 04/03/2003 pg. 1 02/09/2009 pg. 13 removed IDT from orderable part number CORPORATE HEADQUARTERS 2975 Stender ...

Related keywords