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Texas Instruments DIT4192IPWR
- Part No.:
- DIT4192IPWR
- Manufacturer:
- Texas Instruments
- Category:
- Audio Special Purpose
- Package:
- 28-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DIT4192IPWR.pdf
- Description:
- IC LINE DRIVER 28TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,342
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Product details
Overview
The DIT4192IPWR from Texas Instruments is a 192kHz digital audio transmitter IC compliant with AES-3, IEC-60958, and EIAJ CP1201 standards. It functions as a complete serial-to-AES-3 encoder with on-chip differential line driver, supports up to 192kHz sampling rates, operates from +5V core and +2.7V–+5V I/O supplies, and is used in professional broadcast consoles and consumer A/V receivers.
For engineers reviewing the DIT4192IPWR datasheet, DIT4192IPWR pinout, DIT4192IPWR application, or DIT4192IPWR equivalent, key selection considerations include its dual-mode operation (software/hardware), flexible audio serial interface (I²S/Left/Right-justified), integrated Bi-Phase Mark encoding, differential TX+/TX– outputs, and TSSOP-28 package compatibility with industrial temperature range (–40°C to +85°C).
Technical Context
The DIT4192IPWR implements a full AES-3 encoder with multiplexed audio, channel status, user, and validity data, followed by Bi-Phase Mark encoding and differential line driving. Its dual control architecture supports both software mode (serial control port with 16-bit header protocol) and hardware mode (dedicated configuration pins), enabling deployment with or without a microcontroller.
It features a programmable master clock input (MCLK) supporting 128fS, 256fS, 384fS, or 512fS rates up to 25MHz, and an audio serial port configurable as Master or Slave with SYNC/SCLK frame synchronization at up to 192kHz. The line driver outputs (TX+, TX–) deliver compliant differential signals for twisted-pair or optical transmission.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| AES-3 Compliance | Fully compliant with AES-3, IEC-60958, and EIAJ CP1201 - ensures interoperability with professional and consumer digital audio equipment. |
| Max Sampling Rate | 192kHz - supports high-resolution audio formats including DVD-Audio and studio-grade recording systems. |
| Master Clock Input | 25MHz max, selectable 128fS/256fS/384fS/512fS - enables precise timing alignment with diverse audio source clocks. |
| Supply Voltages | VDD = +4.5V to +5.5V (core); VIO = +2.7V to VDD (I/O) - allows mixed-voltage system integration with 3.3V or 5V logic domains. |
| Differential Output Driver | TX+/TX– with VOH ≥ VDD – 0.4V, VOL ≤ 0.7V at ±30mA - meets AES-3 electrical requirements for balanced cable transmission. |
| Operating Temperature | –40°C to +85°C - qualified for industrial and broadcast equipment environments without derating. |
| Power Dissipation | 175mW dynamic at 192kHz - enables compact thermal design in dense PCB layouts. |
Pinout & Package
TSSOP-28 package with exposed pad (PW designation), 0.65mm pitch, 9.7mm × 4.4mm body size, JEDEC MO-153 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 10, 14, 20, 21, 23, 24, 26 | No Connection | Internally unconnected; must remain floating or grounded per layout guidelines - no routing or loading permitted. |
| 2 (CDOUT) | Control Data Output | Tri-state serial output for software mode register/buffer reads; requires CS low and CCLK falling edge timing. |
| 3 (CCLK) | Control Clock Input | Rising edge clocks CDIN data in; falling edge clocks CDOUT data out - defines 16-bit header + data transfer timing. |
| 4 (CDIN) | Control Data Input | Serial input for software mode writes; MSB-first, accepts 16-bit header + 8-bit register/buffer data. |
| 5 (CS) | Control Chip Select | Active-low enable for serial control port - must be asserted before CCLK edges to initiate valid transactions. |
| 6 (MCLK) | Master Clock Input | Primary timing reference for AES-3 encoding and audio port; max 25MHz, duty cycle 40–60%. |
| 7 (VIO) | I/O Power Supply | Supplies all digital I/O buffers (CCLK, CDIN, CDOUT, etc.); independent of VDD for voltage translation. |
| 8, 16 (DGND) | Digital Ground | Common return for digital logic and control circuitry - must be connected to low-impedance ground plane. |
| 9 (RXP) | AES-3 Encoded Input | External AES-3 data source input for bypass mode; selected via BYPASS bit in Control Register 01H. |
| 11 (SCLK) | Audio Serial Clock | I/O pin for audio data clock - configured as input (Slave) or output (Master) based on M/S control bit or pin. |
| 12 (SYNC) | Audio Frame Sync | I/O pin for frame synchronization - rate equals sampling frequency (fS), up to 192kHz. |
| 13 (SDATA) | Audio Serial Data In | Input for PCM audio data (16/18/20/24-bit, two's complement, MSB-first) - supports I²S, Left/Right-justified formats. |
| 15 (RST) | Hardware Reset | Active-low asynchronous reset - forces TX+/TX– to ground and clears internal registers on 500ns minimum pulse. |
| 17 (TX–), 18 (TX+) | Differential Line Outputs | Compliant AES-3 differential pair - drives transformer-coupled twisted-pair or optical transmitter modules directly. |
| 19 (VDD) | Core Power Supply | +4.5V to +5.5V supply for digital core and AES-3 encoder - decoupling capacitor required near pin. |
| 22 (INT) | Interrupt Output | Open-drain active-low interrupt - requires 10kΩ pull-up to VIO; signals error or status events in software mode. |
| 25 (BLS) | Block Start I/O | Configurable as input (block start detection) or output (frame 0 indicator) - synchronized to SYNC edge per ISYNC bit. |
| 27 (U) | User Data Input | Serial input for AES-3 user data bits - sampled on SYNC edges in hardware mode; written via control port in software mode. |
| 28 (MODE) | Control Mode Select | Hardwired LOW = software mode (serial control port active); HIGH = hardware mode (dedicated config pins active). |
Key Features
| Feature | Design Value |
|---|---|
| Dual Control Architecture | Software mode (serial control port with auto-increment addressing) and hardware mode (dedicated pins) - eliminates MCU dependency in cost-sensitive designs. |
| Flexible Audio Interface | Supports I²S, Left-Justified, and Right-Justified formats with programmable word length (16/18/20/24-bit) and SYNC polarity - simplifies integration with diverse DSPs and ADCs. |
| On-Chip AES-3 Encoder | Full implementation of AES-3 frame structure including channel status, user, and validity data multiplexing plus Bi-Phase Mark encoding - removes need for external encoding logic. |
| Differential Line Driver | Integrated TX+/TX– driver meeting AES-3 electrical specs (±30mA drive, VDD-referenced thresholds) - reduces BOM count and layout complexity for balanced output stages. |
| Channel Status Handling | Software mode: 24-byte buffer accessible via serial port; hardware mode: parallel inputs (CSS/COPY/L/AUDIO/EMPH) or serial C-input - enables rapid status updates in real-time systems. |
Applications
| Digital Mixing Consoles | Digital Audio Workstations |
|---|---|
Use Scenario: Multi-channel live sound reinforcement with real-time routing and effects processing. IC Role / Device Role / Timing Role: Digital audio transmitter converting processed PCM streams into AES-3 format for stagebox or recorder interconnection. Use Value: 192kHz support enables ultra-low-latency monitoring paths; hardware mode allows fixed-function operation without host CPU overhead. | Use Scenario: High-fidelity audio editing and mastering on PC-based platforms with external converters. IC Role / Device Role / Timing Role: AES-3 interface bridge between PCIe/USB audio interface and professional monitors or ADAT gear. Use Value: Dual-mode flexibility permits software-controlled configuration during session setup and hardware-mode lock-down during playback. |
| Broadcast Studio Equipment | A/V Receivers |
Use Scenario: On-air playout systems requiring SMPTE timecode embedding and robust error handling. IC Role / Device Role / Timing Role: AES-3 transmitter with CRC generation for professional mode - ensures bit-accurate transport over long cable runs. Use Value: Integrated CRC engine validates channel status integrity; differential outputs reject common-mode noise in RF-heavy studio environments. | Use Scenario: Consumer home theater systems receiving HDMI audio and distributing to multi-zone speakers. IC Role / Device Role / Timing Role: Format converter from HDMI audio processor's I²S output to coaxial or optical S/PDIF output. Use Value: TSSOP-28 package enables compact board area; 3.3V/5V I/O compatibility simplifies interface with HDMI receiver SoCs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital audio transmitter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AK4117VN | Supports 216kHz max sampling rate; includes jitter reduction circuitry; requires external line driver. | Targeted at high-end audio DACs where jitter suppression is critical; lacks integrated differential driver. | Select AK4117VN when ultra-low-jitter performance is prioritized and external driver design is acceptable. |
| CS8416-CZZR | Single-supply 3.3V operation; supports S/PDIF and AES-3; no hardware mode; smaller TSSOP-20 package. | Optimized for space-constrained consumer electronics; limited to 100kHz max sampling rate. | Select CS8416-CZZR for cost-sensitive, 3.3V-only designs where 192kHz capability is not required. |
Compared with AK4117VN and CS8416-CZZR, the DIT4192IPWR uniquely combines 192kHz capability, integrated differential driver, and dual-mode control - making it optimal for industrial broadcast and prosumer A/V systems needing robustness, configurability, and minimal external components.
Availability
DIT4192IPWR is available at Aetrix Electronics and suitable for digital mixing consoles, broadcast studio equipment, and A/V receivers requiring stable component supply across extended production lifecycles.
Supply support for DIT4192IPWR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, specializing in analog, embedded processing, and digital signal technologies for industrial, automotive, and communications markets.
The DIT4192IPWR belongs to TI's precision audio interface product line, designed specifically for robust, standards-compliant digital audio transmission in professional and high-fidelity consumer equipment.
FAQ
What is the maximum sampling rate supported by the DIT4192IPWR?
The DIT4192IPWR supports a maximum sampling rate of 192kHz, enabling high-resolution audio transmission for applications such as DVD-Audio, studio recording systems, and broadcast playout. This capability is confirmed in the device's Electrical Characteristics table and General Description section of the SBOS229B datasheet, where 192kHz operation is explicitly validated for dynamic power consumption and timing parameters.
Does the DIT4192IPWR include an integrated line driver?
Yes, the DIT4192IPWR includes an on-chip differential line driver with outputs TX+ (pin 18) and TX– (pin 17). As specified in the Electrical Characteristics table, it delivers VOH ≥ VDD – 0.4V and VOL ≤ 0.7V at ±30mA, fully complying with AES-3 electrical requirements. This eliminates the need for external driver circuitry in most coaxial or transformer-coupled implementations.
How does the DIT4192IPWR handle channel status data in hardware mode?
In hardware mode, the DIT4192IPWR accepts channel status data either through dedicated parallel inputs (CSS, COPY/C, L, AUDIO, EMPH) when CSS = 0, or via serial input at the C pin (pin 2) synchronized to SYNC edges when CSS = 1. Table VI and Figure 5 in the SBOS229B datasheet define the exact bit mappings and timing relationships for both configurations.
What are the power supply requirements for the DIT4192IPWR?
The DIT4192IPWR requires two supplies: VDD = +4.5V to +5.5V (nominal +5V) for the digital core and AES-3 encoder, and VIO = +2.7V to VDD for all digital I/O buffers. This dual-supply architecture allows interfacing with both 3.3V and 5V logic families without level shifters, as verified in the Absolute Maximum Ratings and Electrical Characteristics sections.
Can the DIT4192IPWR operate without a microcontroller?
Yes, the DIT4192IPWR supports hardware mode operation (MODE = 1) using dedicated configuration pins (FMT0/FMT1, CLK0/CLK1, M/S, etc.), eliminating the need for a microcontroller. Pin descriptions on pages 4–5 of SBOS229B confirm all hardware-mode control signals, and the General Description states explicitly that hardware mode "allows operation without a microcontroller."
DIT4192IPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 28-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Line Driver
- Applications:
- Pre-Amplifier, Professional Audio
- Number of Channels:
- 1
- Interface:
- SPI
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Specifications:
- Differential Output
- Mounting Type:
- Surface Mount
- Grade:
- -
DIT4192IPWR FAQ
1.How can I place an order for DIT4192IPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for DIT4192IPWR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DIT4192IPWR reliable?
The price and inventory of DIT4192IPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DIT4192IPWR is usually 5 days.
3.What payment methods are accepted for DIT4192IPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DIT4192IPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DIT4192IPWR?
DIT4192IPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DIT4192IPWR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DIT4192IPWR?
For technical support, including DIT4192IPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DIT4192IPWR requirements.
6.How does Aetrix verify that DIT4192IPWR is sourced from the original manufacturer or authorized distributors?
All DIT4192IPWR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DIT4192IPWR meets industry standards.
7.What is the process for return or replacement of DIT4192IPWR?
All DIT4192IPWR units undergo pre-shipment inspection (PSI). If there is an issue with DIT4192IPWR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DIT4192IPWR part is unused and in its original packaging.
Return procedure for DIT4192IPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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