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Texas Instruments DIT4192IPW
- Part No.:
- DIT4192IPW
- Manufacturer:
- Texas Instruments
- Category:
- Audio Special Purpose
- Package:
- 28-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DIT4192IPW.pdf
- Description:
- IC LINE DRIVER 28TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:283
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Product details
Overview
DIT4192IPW 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, supporting both software-controlled register configuration and hardware pin-strapped operation. Key confirmed parameters include 192kHz max sampling rate, TSSOP-28 package, +5V core supply (VDD), +2.7V to +5V I/O supply (VIO), and Bi-Phase Mark encoded differential output (TX+/TX–) for professional/consumer audio interconnect.
For engineers reviewing the DIT4192IPW datasheet, DIT4192IPW pinout, DIT4192IPW application, or DIT4192IPW equivalent, this page delivers verified technical context on dual-mode control (software/hardware), AES-3 frame formatting, master clock rate selection (128fS–512fS), channel status buffer handling, and differential line driver interface design-critical for digital mixing consoles, broadcast studio gear, and high-resolution A/V receivers.
Technical Context
The DIT4192IPW implements a full AES-3 encoder that multiplexes linear PCM audio, 192-bit channel status, user, and validity data into a Bi-Phase Mark encoded bitstream. Its dual operational modes are mutually exclusive: Software Mode uses a 4-wire serial control port (CS/CCLK/CDIN/CDOUT) to access 8-bit control registers and a block-sized channel status buffer; Hardware Mode replaces register access with dedicated pins (CSS/COPY/C/L/FMT0/FMT1/M/S) for fixed-function configuration.
Audio serial interface supports I²S, Left-Justified, and Right-Justified formats at up to 192kHz, with programmable word length (16/18/20/24-bit) and SYNC/SCLK edge polarity in Software Mode. The integrated differential line driver delivers compliant AES-3 output levels (VDD – 0.7V to VDD for VOH, 0 to 0.7V for VOL at ±30mA) and supports transformer-coupled twisted-pair or optical transmission via TX+ and TX– outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| AES-3 Compliance | Fully compliant with AES-3, IEC-60958, and EIAJ CP1201 physical and protocol layers-ensures interoperability with professional audio equipment and consumer receivers. |
| Max Sampling Rate | 192kHz-supports high-resolution audio formats including DVD-Audio and SACD playback paths. |
| Master Clock Range | 128fS, 256fS, 384fS, or 512fS (up to 25MHz)-enables flexible clock sourcing from PLLs or crystal oscillators across common audio sample rates. |
| Supply Voltages | VDD = +4.5V to +5.5V (nominal +5V); VIO = +2.7V to VDD-allows mixed-voltage system integration with 3.3V logic and 5V core domains. |
| Line Driver Output | Differential TX+/TX– with ±30mA drive capability and rail-to-rail swing-meets AES-3 voltage compliance for 110Ω balanced cable transmission. |
| Operating Temperature | –40°C to +85°C-qualified for industrial-grade deployment in broadcast consoles and embedded A/V systems. |
| Power Dissipation | 175mW dynamic at 192kHz-enables thermally constrained PCB layouts without forced cooling in compact enclosures. |
Pinout & Package
TSSOP-28 package (PW suffix), 4.4mm × 9.7mm body, 0.65mm pitch, exposed thermal pad not present. Pinout differs between Software Mode (MODE = 0) and Hardware Mode (MODE = 1); both configurations share critical I/O including MCLK (6), RST (15), TX– (17), TX+ (18), VDD (19), DGND (8/16), SCLK (11), SYNC (12), SDATA (13), and MODE (28).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TX+ / TX– | Differential AES-3 output driver pair | Deliver Bi-Phase Mark encoded signal compliant with AES-3 electrical specifications; require external 110Ω termination and optional isolation transformer. |
| MCLK (6) | Master clock input | Provides timing reference for internal AES-3 encoding and audio serial port; must be stable 25MHz max, with 40–60% duty cycle. |
| RST (15) | Hardware reset input (active low) | Forces internal registers to default state and grounds TX+/TX– outputs until first SYNC rising edge; minimum pulse width 500ns. |
| SCLK / SYNC / SDATA (11/12/13) | Audio serial port interface | 3-wire synchronous interface supporting I²S/Left/Right-justified formats; configurable as master (outputs clocks) or slave (inputs clocks). |
| MODE (28) | Control mode select | Hardwired low = Software Mode (serial control port active); hardwired high = Hardware Mode (dedicated config pins active). |
| VDD (19) / VIO (7) | Power supplies | VDD powers core logic (+5V nominal); VIO powers all digital I/O buffers (+2.7V to VDD)-decoupling capacitors required per TI layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Dual Control Architecture | Software Mode enables full register-level configuration via 4-wire serial port; Hardware Mode eliminates microcontroller dependency using discrete logic-level inputs. |
| Flexible Audio Serial Interface | Supports I²S, Left-Justified, and Right-Justified formats with programmable word length (16–24-bit) and SYNC/SCLK edge polarity-simplifies integration with diverse DSPs and ADCs. |
| On-Chip AES-3 Encoder | Generates full 192-bit channel status blocks, embeds user/validity bits, and performs Bi-Phase Mark encoding-reduces external logic and PCB area vs. discrete encoder solutions. |
| Differential Line Driver | Integrated 110Ω-output impedance driver meets AES-3 voltage swing and common-mode rejection requirements-eliminates need for external line drivers or transformers in basic implementations. |
| Channel Status Handling | Software Mode provides 24-byte block-accessible buffer with auto-increment writes/reads; Hardware Mode offers parallel pin-strapped or serial C-input loading-enables real-time status updates in live audio systems. |
Applications
| Digital Mixing Consoles | Digital Audio Workstations |
|---|---|
Use Scenario: Real-time routing and summing of multichannel 192kHz audio streams in live broadcast environments. IC Role / Device Role / Timing Role: Digital audio transmitter converting DSP-processed I²S data into AES-3 format for stagebox or router interconnection. Use Value: Enables deterministic low-latency transmission with full channel status embedding for source identification and copy protection signaling. | Use Scenario: High-fidelity audio recording and playback in PC-based production systems with external converters. IC Role / Device Role / Timing Role: AES-3 transmitter bridging PCIe/USB audio interface ASICs to professional monitor controllers and ADAT expanders. Use Value: Supports 24-bit/192kHz resolution with CRC generation for professional mode-ensuring bit-perfect transport over long cable runs. |
| Broadcast Studio Equipment | A/V Receivers |
Use Scenario: Embedding metadata and channel status in multi-format ingest pipelines for playout servers and automation systems. IC Role / Device Role / Timing Role: Format converter and serializer for SMPTE ST 2110-30 or legacy AES3 distribution networks. Use Value: Hardware Mode allows fixed-function operation without host CPU overhead-critical for deterministic timing in 24/7 broadcast infrastructure. | Use Scenario: HDMI-to-AES3 conversion in premium home theater receivers supporting Dolby TrueHD and DTS-HD Master Audio. IC Role / Device Role / Timing Role: Digital audio transmitter accepting SPDIF/I²S from HDMI receiver and generating AES-3 output for external DACs or powered speakers. Use Value: On-chip differential driver simplifies board layout and improves EMC performance compared to single-ended SPDIF interfaces. |
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 up to 216kHz sampling rate; includes jitter reduction circuitry; requires external line driver for AES-3 compliance. | Targeted at high-end audio DACs and CD transports where ultra-low jitter is prioritized over integrated driver simplicity. | Select AK4117VN when system-level jitter budget is tighter than ±50ps and external transformer coupling is acceptable. |
| CS8416-CQZ | Single-supply operation (3.3V only); no integrated line driver; supports S/PDIF and AES-3 formats via pin-selectable mode. | Designed for cost-sensitive consumer electronics where PCB space and BOM count are constrained, and S/PDIF compatibility is required. | Choose CS8416-CQZ for 3.3V-only designs needing dual-format flexibility but willing to add external driver circuitry. |
Compared with AK4117VN and CS8416-CQZ, the DIT4192IPW uniquely integrates a compliant differential line driver and dual-mode control-reducing component count and enabling both microcontroller-based and standalone operation in professional audio infrastructure.
Availability
DIT4192IPW is available at Aetrix Electronics and suitable for digital mixing consoles, broadcast studio equipment, and high-resolution A/V receivers requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for DIT4192IPW 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 leader specializing in analog, embedded processing, and high-performance signal chain solutions, with decades of leadership in audio interface ICs.
The DIT4192IPW belongs to TI's professional audio transmitter product line, engineered specifically for robust, standards-compliant digital audio transport in broadcast, studio, and high-end consumer equipment where reliability and interoperability are non-negotiable.
FAQ
What is the maximum sampling frequency supported by the DIT4192IPW?
The DIT4192IPW supports a maximum sampling frequency of 192kHz, validated across all operating modes and compliant with AES-3 and IEC-60958 standards. This capability is confirmed in the Electrical Characteristics table under "SYNC Frequency" (195.3050kHz upper limit) and General Description section of the SBOS229B datasheet. At 192kHz, the DIT4192IPW maintains full channel status block generation, Bi-Phase Mark encoding, and differential output drive integrity without degradation.
Does the DIT4192IPW include an integrated line driver for AES-3 output?
Yes, the DIT4192IPW includes an on-chip differential line driver with dedicated TX+ and TX– outputs. As specified in the Electrical Characteristics table, it delivers VOH of VDD – 0.7V to VDD and VOL of 0 to 0.7V at ±30mA load-meeting AES-3 voltage compliance for 110Ω balanced transmission. No external driver is required for basic implementation, though transformer coupling is recommended for galvanic isolation in professional installations.
How does the DIT4192IPW handle channel status data in Software Mode versus Hardware Mode?
In Software Mode, channel status data is loaded via the serial control port into a 24-byte block-accessible buffer with auto-increment addressing. In Hardware Mode, channel status is set either through dedicated pins (CSS=0: COPY/C/L/AUDIO/EMPH) or serially via the C input (CSS=1). The DIT4192IPW documentation confirms these two distinct pathways in the Channel Status Data Input section, with no functional overlap-the mode is strictly determined by the MODE pin state.
What master clock frequencies are supported by the DIT4192IPW for a 96kHz sampling rate?
For a 96kHz sampling rate, the DIT4192IPW supports master clock frequencies of 12.288MHz (128fS), 18.432MHz (256fS), and 24.576MHz (384fS), as explicitly listed in Table I of the SBOS229B datasheet. The 512fS option (30.72MHz) exceeds the device's 25MHz MCLK maximum rating and is therefore invalid. Selection is configured via CLK0/CLK1 bits in Software Mode or pins in Hardware Mode.
Can the DIT4192IPW operate without a microcontroller?
Yes, the DIT4192IPW supports Hardware Mode operation (MODE = 1) with no microcontroller required. In this mode, configuration is handled entirely through dedicated pins-including FMT0/FMT1 for audio format, M/S for master/slave, and CSS/COPY/L for channel status-enabling direct logic-level control in fixed-function audio systems like broadcast routers or standalone encoders.
DIT4192IPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 28-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- 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:
- -
DIT4192IPW FAQ
1.How can I place an order for DIT4192IPW through Aetrix?
Please submit a Request for Quotation (RFQ) for DIT4192IPW 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 DIT4192IPW reliable?
The price and inventory of DIT4192IPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DIT4192IPW is usually 5 days.
3.What payment methods are accepted for DIT4192IPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DIT4192IPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DIT4192IPW?
DIT4192IPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DIT4192IPW 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 DIT4192IPW?
For technical support, including DIT4192IPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DIT4192IPW requirements.
6.How does Aetrix verify that DIT4192IPW is sourced from the original manufacturer or authorized distributors?
All DIT4192IPW 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 DIT4192IPW meets industry standards.
7.What is the process for return or replacement of DIT4192IPW?
All DIT4192IPW units undergo pre-shipment inspection (PSI). If there is an issue with DIT4192IPW, 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 DIT4192IPW part is unused and in its original packaging.
Return procedure for DIT4192IPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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