821024PP IDT, 821024PP Datasheet
821024PP
Specifications of 821024PP
Related parts for 821024PP
821024PP Summary of contents
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... Anolog Front End IIN4 VOUT4 MCLK IREF Reference Circuits CNF The IDT logo is a registered trademark of Integrated Device Technology, Inc INDUSTRIAL TEMPERATURE RANGE 2003 Integrated Device Technology, Inc. QUAD NON-PROGRAMMABLE PCM CODEC DESCRIPTION The IDT821024 is a single-chip, four channel PCM CODEC with on- chip filters ...
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... 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 32-Pin 9 PLCC 44-Pin TQFP 2 INDUSTRIAL TEMPERATURE RANGE PCLK 29 TSC 28 DGND ...
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... IREF pin. Master Clock. The Master Clock provides the clock for the DSP. It can be either 2.048 MHz or 4.096 MHz. The IDT821024 determines the MCLK frequency via the FSX inputs and makes the necessary internal adjustments automatically. The MCLK frequency must be an integer multiple of the FSX frequency. ...
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... 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 29, 32, 33, 40, 42 Channel 1/2/3/4 Power Down. When this pin is high, Channel N is powered down. ...
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... PCM frame for Channel N. The PCM Data is received serially on DR pin with the Most Significant Bit (MSB) first. Hardware Gain Setting In Transmit Path The transmit gain of the IDT821024 for each channel can be set by 2 resistors, R ing equation: The receive gain of IDT821024 is fixed and equal to 1. ...
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... PDNn is 0, Channel normal mode. In standby mode, all circuits are powered down with the analog outputs placed in high impedance state. In normal mode, each channel of the IDT821024 is able to transmit and receive both PCM and analog information. The normal mode is used when a telephone call is in progress. ...
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... 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 permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied ...
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... 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 PCM bit stream equivalent to that obtained by passing a 0 dBm0, 1020 Hz sine wave through an ideal encoder ...
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... 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 : Input level = 0 dBm0 Input level = -30 dBm0 Input level = -40 dBm0 Input level = -45 dBm0 STD ...
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... 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 Receive Crosstalk X-R XT Receive to Transmit Crosstalk R-X Min Typ Max Units 300 Hz – 3400 Hz, 0 dBm0 signal into IIN of interfering channel. ...
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... 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 Delay Time (for Short Frame Sync Mode) ...
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... 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 t14 t2 t11 BIT 1 BIT 3 BIT 4 ...
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... X Process/ Package Temperature Range for SALES: 800-345-7015 or 408-727-6116 fax: 408-492-8674 www.idt.com* The IDT logo is a registered trademark of Integrated Device Technology, Inc. 13 Blank Industrial (-40 °C to +85 °C) J Plastic Leaded Chip Carrier (PLCC, PL32) PP Thin Quad Flat Pack (TQFP, PP44) 821024 Quad Non-Programmable PCM CODEC for Tech Support: email: telecomhelp@idt ...