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Part: DIT4192IPW
Category:
Multimedia
-> Audio
-> Transmitters
-> Digital Audio Transmitters
Description: ti DIT4192, 192 KHZ Digital Audio Transmitter
Company: Texas Instruments, Inc.
Datasheet: Download DIT4192IPW datasheet File size : 108 kB
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Datasheet text preview:
DIT4192
DIT41 92
SBOS229B DECEMBER 2001 REVISED JUNE 2003
192kHz Digital Audio Transmitter
FEATURES
q COMPLIANT WITH AES-3, IEC-60958, AND EIAJ CP1201 INTERFACE STANDARDS q SUPPORTS SAMPLING RATES UP TO 192kHz q SUPPORTS MONO-MODE OPERATION q ON-CHIP DIFFERENTIAL LINE DRIVER q FLEXIBLE AUDIO SERIAL INTERFACE: -Master or Slave Mode Operation -Supports I2S, Left-Justified, and Right-Justified Data Formats q S O F T W A R E MODE VIA SERIAL CONTROL INTERFACE: -Block Sized Buffer for Channel Status Data -Auto Increment Mode for Block Sized Write and Read Operations q H A R D W A R E MODE ALLOWS OPERATION WITHOUT A MICROCONTROLLER q CRC CODE GENERATION FOR PROFESSIONAL MODE q MASTER CLOCK RATE: 128fS, 256fS, 384fS, or 512fS q +5V CORE SUPPLY (VDD) q +2.7V TO VDD LOGIC I/O SUPPLY (VIO) q PACKAGE: TSSOP-28
APPLICATIONS
q q q q q q q q q DIGITAL MIXING CONSOLES DIGITAL MICROPHONES DIGITAL AUDIO WORKSTATIONS BROADCAST STUDIO EQUIPMENT EFFECTS PROCESSORS SURROUND-SOUND DECODERS AND ENCODERS A/V RECEIVERS DVD, CD, DAT, AND MD PLAYERS AUDIO TEST EQUIPMENT
DESCRIPTION
The DIT4192 is a digital audio transmitter designed for use in both professional and consumer audio applications. Transmit data rates up to 192kHz are supported. The DIT4192 supports both software and hardware operation, which makes it suitable for applications with or without a microcontroller. A flexible serial audio interface is provided, supporting standard audio data formats and easy interfacing to audio DSP serial ports.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
Copyright © 2001-2003, Texas Instruments Incorporated
www.ti.com
ABSOLUTE MAXIMUM RATINGS(1)
Power-Supply Voltage, VDD ..... +6.5V VIO ...... +6.5V Input Current .. ±10mA Digital Input Voltage .......... 0.2V to +5.5V Digital Output Voltage ........... 0.2V to (VDD + 0.2V) Power Dissipation ........ 300mW Operating Temperature Range ..... 40°C to + 85°C Storage Temperature ..... 55°C to +125°C Lead Temperature (soldering, 5s) ....... +260°C Package Temperature (IR re-flow, 10s) ....... +235°C NOTE: (1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not implied.
ELECTROSTATIC DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
PACKAGE /ORDERING INFORMATION
PRODUCT DIT4192 PACKAGE-LEAD TSSOP-28 PACKAGE DESIGNATOR(1) PW SPECIFIED TEMPERATURE RANGE 40°C to +85°C PACKAGE MARKING DIT4192IPW ORDERING NUMBER DIT4192IPW DIT4192IPWR TRANSPORT MEDIA, QUANTITY Rails, 50 Tape and Reel, 2000
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NOTE: (1) For the most current specifications and package information, refer to our web site at www.ti.com.
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DIT4192
www.ti.com
SBOS229B
ELECTRICAL CHARACTERISTICS
All specifications at TA = +25°C, VDD = +5V, and VIO = 3.3V unless otherwise noted. DIT4192IPW PARAMETER DIGITAL CHARACTERISTICS Applies to All Digital I/O Except TX+ and TX High-Level Input Voltage, VIH Low-Level Input Voltage, VIL High-Level Output Voltage, VOH Low-Level Output Voltage, VOL Input Leakage Current OUTPUT DRIVER CHARACTERISTICS Applies Only to TX+ and TX High-Level Output Voltage, VOH Low-Level Output Voltage, VOL SWITCHING CHARACTERISTICS Master Clock and Reset Master Clock (MCLK) Frequency Master Clock (MCLK) Duty Cycle Reset (RST) Active Low Pulse Width Serial Control Port Timing CCLK Frequency Stereo Mode Mono Mode Serial Control Data Setup Time, tSDS Serial Control Data Hold Time, tSDH CS Falling to CCLK Rising, tCSCR CCLK Falling to CS Rising, tCFCS CCLK Falling to CDOUT Data Valid, tCFDO CS Rising to CDOUT High Impedance, tCSZ Audio Serial Interface Timing SYNC Frequency (or Frame Rate) SYNC Clock Period tSYNCP SYNC High/Low Pulse Width, tSYNCHL SCLK Frequency SCLK Clock Period, tSCLKP SCLK High/Low Pulse Width, tSCLKHL SYNC Edge to SCLK Edge, tSYSK Audio Data Setup Time, tADS Audio Data Hold Time, tADH C, U, and V Input Timing C/U/V Data Setup Time, tCUVS C/U/V Data Hold Time, tCUVH POWER-SUPPLY Operating Voltage VDD V IO Supply Current IDD, Quiescent IDD, Power-Down Mode IDD, Dynamic (at 192kHz operation) IIO, Quiescent IIO, Power-Down Mode IIO, Dynamic (at 192kHz operation) IIO, Power-Down Mode IIO, Quiescent IIO, Dynamic (at 192kHz operation) Power Dissipation PD, Quiescent PD, Power-Down Mode PD, Dynamic (at 192kHz operation) TEMPERATURE RANGE Operating Range Storage Range VDD = +5V VDD = +5V VDD = +5V VIO = +3.3V VIO = +3.3V VIO = +3.3V VIO = +5V VIO = +5V CONDITIONS MIN TYP MAX UNITS
IO = 4mA IO = +4mA
0.7 · VIO 0 0.8 · VIO 0 1
V IO 0.2 · VIO 0.1 · VIO 10
V V V V µA
IO = 30mA IO = +30mA
VDD 0.7 0
VDD 0.4 0.4
VDD 0.7
V V
40 500
25 60
MHz % ns
fS = Sampling Frequency fS = Sampling Frequency 12 8 15 12
128 · fS 64 · fS
12 10 195.3050 5.12 2.56 25 40 18 15 15 15 15 15
MHz MHz ns ns ns ns ns ns kHz µs µs MHz ns ns ns ns ns ns ns
+4.5 +2.7
+5
+5.5 VDD
V V µA µA mA µA µA mA µA µA mA µW µW mW
25 2 30 15 15 1.5 250 250 3 100 100 175 40 55 +85 +125
VDD = +5V VDD = +5V VDD = +5V
°C °C
DIT4192
SBOS229B
www.ti.com
3
PIN CONFIGURATION: Software Mode (MODE = 0)
Top View TSSOP
PIN CONFIGURATION: Hardware Mode (MODE = 1)
Top View TSSOP
NC CDOUT CCLK CDIN CS MCLK VIO DGND RXP NC SCLK SYNC SDATA NC
1 2 3 4 5 6 7 8 9 10 11 12 13 14 DIT4192
28 MODE 27 U 26 NC 25 BLS 24 NC 23 NC 22 INT 21 NC 20 NC 19 VDD 18 TX+ 17 TX 16 DGND 15 RST
CSS COPY/C L CLK1 CLK0 MCLK VI O DGND FMT0 FMT1 SCLK SYNC SDATA M/S
1 2 3 4 5 6 7 8 9 10 11 12 13 14 DIT4192
28 MODE 27 U 26 V 25 BLS 24 BLSM 23 EMPH 22 AUDIO 21 MONO 20 MDAT 19 VDD 18 TX+ 17 TX 16 DGND 15 RST
PIN DESCRIPTIONS: Software Mode
PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 NAME NC CDOUT CCLK CDIN CS MCLK V IO DGND RXP NC SCLK SYNC SDATA NC RST DGND T X TX+ VDD NC NC INT NC NC BLS NC U MODE PIN DESCRIPTION No Connection Control Port Data Output, Tri-State Control Port Data Clock Input Control Port Serial Data Input Control Port Chip Select Input, Active LOW Master Clock Input Digital I/O Power Supply, +2.7V to VDD Nominal Digital Ground AES-3 Encoded Data Input No Connection Audio Serial Port Data Clock I/O Audio Serial Port Frame SYNC Clock I/O Audio Serial Port Data Input No Connection Reset Input, Active LOW Digital Ground Transmitter Line Driver Output Transmitter Line Driver Output Digital Core Power Supply, +5V Nominal No Connection No Connection Open Drain Interrupt Output, Active LOW. Requires 10k pull-up resistor to VIO. No Connection No Connection Block Start I/O No Connection User Data Input Control Mode Input. Set MODE = 0 for Software Mode operation.
PIN DESCRIPTIONS: Hardware Mode
PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 NAME CSS COPY/C L CLK1 CLK0 MCLK VIO DGND FMT0 FMT1 SCLK SYNC SDATA M/S RST DGND T X TX+ VDD MDAT MONO AUDIO EMPH BLSM BLS V U MODE PIN DESCRIPTION Channel Status Data Mode Input Copy Protect Input or Channel Status Serial Data Input Generation Status Input Master Clock Rate Selection Input Master Clock Rate Selection Input Master Clock Input Digital I/O Power Supply, +2.7V to VDD Nominal Digital Ground Audio Data Format Control Input Audio Data Format Control Input Audio Serial Port Data Clock I/O Audio Serial Port Frame SYNC Clock I/O Audio Serial Port Data Input Audio Serial Port Master/Slave Control Input Reset Input, Active LOW Digital Ground Transmitter Line Driver Output Transmitter Line Driver Output Digital Core Power-Supply, +5V Nominal Mono Mode Channel Data Selection Input Mono Mode Enable Input, Active HIGH Audio Data Valid Control Input, Active LOW Pre-Emphasis Status Input, Active LOW Block Start Mode Control Input Block Start I/O Validity Data Input User Data Input Control Mode Input. Set MODE = 1 for Hardware Mode Operation.
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DIT4192
www.ti.com
SBOS229B
GENERAL DESCRIPTION
The DIT4192 is a complete digital audio transmitter, suitable for both professional and consumer audio applications. Sampling rates up to 192kHz are supported. The DIT4192 complies with the requirements for the AES-3, IEC-60958, and EIAJ CP1201 interface standards. Figures 1 and 2 show the block diagrams for the DIT4192 when used in Software and Hardware control modes. The MODE input (pin 28) determines the control model used to configure the DIT4192 internal functions. In Software mode, a serial control port is used to write and read on-chip control registers and status buffers. In Hardware mode, dedicated control pins are provided for configuration and status inputs. The DIT4192 includes an audio serial port, which is used to i n t e r f a c e to standard digital audio sources, such as
Analog-to-Digital (A/D) converters, Digital Signal Processors (DSPs), and audio decoders. Support for Left-Justified, RightJustified, and I2S data formats is provided. The AES-3 encoder creates a multiplexed bit stream, containing audio, status, and user data. See Figure 3 for the multiplexed data format. The data is then Bi-Phase Mark encoded and output to a differential line driver. The line driver outputs are connected to the transmission medium, be it cable or fiber optics. In the case of twisted-pair or coaxial cable, a transformer is commonly used to couple the driver outputs to the transmission line. This provides both isolation and improved common-mode rejection. For optical transmission, the TX+ (pin 18) driver output is connected to an optical transmitter module. See the Applications Information section of this data sheet for details regarding output driver circuit configurations.
RXP U SYNC SCLK SDATA Audio Serial Port Line Driver TX+ TX
AES-3 Encoder
RST
Reset Logic
Serial Control Interface, Control Registers, and Channel Status Data Buffers
Clock Generator
MCLK
Control Port BLS INT
FIGURE 1. Software Mode Block Diagram.
SYNC SCLK SDATA M/S FMT0 FMT1
Audio Serial Port
AES-3 Encoder
Line Driver
TX+ TX
MCLK RST Reset Logic CUV Data Buffer Clock Generator CLK0 CLK1 CSS COPY/C L AUDIO EMPH U V BLSM BLS MONO MDAT
FIGURE 2. Hardware Mode Block Diagram.
DIT4192
SBOS229B
www.ti.com
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