821024JG Renesas

821024 QUAD NON-PROGRAMMABLE PCM CODEC DATASHEET DESCRIPTION FEATURES 4 channel CODEC with on-chip digital lters The IDT821024 is a single-chip, four channel PCM CODEC with on- Selectable A-law or -law companding chip lters. The device provides analog-to-digital and digital-to-analog conversions and supports both a-law and law companding. The digital Master clock frequency selection: 2.048 MHz, 4.096 MHz or lters in IDT821024 provides the necessary transmit and receive ltering for 8.192 MHz voice telephone circuit to interface with time-division multiplexed systems. - Internal timing automatically adjusted based on MCLK and frame All of the digital lters are performed in digital signal processors operating sync signal from an internal clock, which is derived from MCLK. The xed lters set Separate PCM and master clocks the transmit and receive gain and frequency response. Single PCM port with up to 8.192 MHz data rate (128 time slots) In the IDT821024 the PCM data is transmitted to and received from the Transhybrid balance impedance hardware adjustable via external PCM highway in time slots determined by the individual Frame Sync signals components (FSR and FSX , where n = 1-4) at rates from 256 KHz to 8.192 MHz. Both n n Long and Short Frame Sync modes are available in the IDT821024. Transmit gains hardware adjustable via external components The IDT821024 can be used in digital telecommunication applications Low power +5.0 V CMOS technology such as PBX, Central Of ce Switch, Digital Telephone and Integrated +5.0 V single power supply Voice/Data Access Unit. Package available: 32 pin PLCC, 44 pin TQFP FUNCTIONAL BLOCK DIAGRAM 821024 REVISION A JUNE 25, 2014 1 2014 Integrated Device Technology, Inc.821024 DATA SHEET PIN CONFIGURATIONS PCLK IIN1 5 29 TSC IIN2 6 28 DGND VOUT2 7 27 DX VCCA 8 26 32-Pin VCCD IREF 9 25 PLCC DR AGND 10 24 FSR1 VOUT3 11 23 FSX1 IIN3 12 22 FSR2 IIN4 13 21 NC 33 1 IIN2 NC 32 2 VOUT2 TSC 31 3 NC DGND 30 4 NC 44-Pin NC 29 5 VCCA TQFP DX 28 6 IREF VCCD 27 7 AGND DR 26 8 NC FSR1 25 9 NC FSX1 24 10 VOUT3 FSR2 23 11 IIN3 QUAD NON-PROGRAMMABLE 2 REVISION A 06/25/14 PCM CODEC 12 IIN1 IIN4 44 13 VOUT1 VOUT4 43 14 NC 14 VOUT1 NC 42 4 VOUT4 15 CNF 15 CNF NC 41 3 A/ 16 NC 16 PDN1 A/ 40 2 FSX4 17 PDN1 17 PDN2 NC 39 1 FSR4 18 PDN2 18 PDN3 FSX4 38 32 FSX3 19 PDN3 19 PDN4 FSR4 37 31 FSR3 20 PDN4 20 MCLK FSX3 36 30 FSX2 21 MCLK FSR3 35 22 PCLK FSX2 34