DIT4192 Datasheet Review
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Created a project doc
DIT4192IPW Datasheet Review
Date: 2026-07-15 Official Texas Instruments datasheet: https://www.ti.com/lit/ds/symlink/dit4192.pdf
Completed the DIT4192IPW review and applied only the requested symbol-organization properties: pin orientation, section, and terminal order. I also updated the Datasheet URL to the official TI PDF and created the detailed report here: DIT4192IPW Datasheet Review.
Open items:
- MPN property is still
DIT4192_PW_28; datasheet/orderable MPN isDIT4192IPW/DIT4192IPWR. - Symbol matches the datasheet Software Mode pin table; Hardware Mode alternate pin functions are not represented.
- Pin Type and detailed Pin Description properties remain incomplete because the requested edit scope was orientation/section/order only.
Suggested next steps:
- Update the MPN property to
DIT4192IPW. - Populate Pin Type and Pin Description from the datasheet.
- Decide whether to document or support Hardware Mode alternate pin functions.
Fix metadata and pins
Update MPN property
Populate pin details
Add hardware aliases
Run validation check
Refine this doc
Ask about this doc
DIT4192IPW Datasheet Review
Date: 2026-07-15
Datasheet source
Official Texas Instruments datasheet: https://www.ti.com/lit/ds/symlink/dit4192.pdf
The part metadata was updated so the Datasheet URL points to the official TI DIT4192 PDF.
Part metadata review
Table
| Field | Current project value | Datasheet / TI value | Status |
|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | OK |
| Manufacturer Part Number | DIT4192_PW_28 | DIT4192IPW; tape-and-reel variant DIT4192IPWR | Mismatch / naming issue |
| Part type | Integrated Circuit | 192 kHz digital audio transmitter | OK |
| Package | PW28 / TSSOP-28 footprint | TSSOP-28, package designator PW | OK |
| Pin count | 28 terminals / 28 footprint pads | 28 pins | OK |
| Description | TI 192 kHz digital audio transmitter with AES-3 / IEC-60958 / EIAJ CP1201 support | Matches datasheet description/features | OK |
| Datasheet URL | https://www.ti.com/lit/ds/symlink/dit4192.pdf | Official TI datasheet | OK |
Key datasheet specs
- Function: 192 kHz digital audio transmitter for professional and consumer audio.
- Standards: AES-3, IEC-60958, EIAJ CP1201.
- Audio formats: I2S, left-justified, right-justified.
- Control modes: software serial-control mode and hardware pin-control mode.
- Master clock: 128 fS, 256 fS, 384 fS, or 512 fS; maximum MCLK frequency 25 MHz.
- Core supply: VDD = 4.5 V to 5.5 V, nominal 5 V.
- I/O supply: VIO = 2.7 V to VDD.
- Dynamic supply current at 192 kHz: IDD typ 30 mA; IIO typ 1.5 mA at VIO = 3.3 V or 3 mA at VIO = 5 V.
- Output driver: on-chip differential line driver on TX+ and TX-.
- Operating temperature: -40°C to +85°C.
- Package: PW TSSOP-28, JEDEC MO-153 family.
Applied symbol organization assignments
The following properties were assigned directly to the schematic terminals without changing pin numbers, replacing pins, or remapping pins.
Table
| Pin | Schematic pin name | Datasheet software-mode name/function | Section | Orientation | Terminal order | Check |
|---|---|---|---|---|---|---|
| 1 | NC | NC, no connection | NC | Left | 19 | OK for software mode |
| 2 | CDOUT | Control Port Data Output, tri-state | Control | Right | 13 | OK |
| 3 | CCLK | Control Port Data Clock Input | Control | Left | 9 | OK |
| 4 | CDIN | Control Port Serial Data Input | Control | Left | 8 | OK |
| 5 | *CS | CS, active-low Control Port Chip Select Input | Control | Left | 10 | OK; active-low notation differs only by using * prefix |
| 6 | MCLK | Master Clock Input | Interface | Left | 3 | OK |
| 7 | VIO | Digital I/O power supply, +2.7 V to VDD | Power | Top | 2 | OK |
| 8 | DGND | Digital Ground | Ground | Bottom | 27 | OK |
| 9 | RXP | AES-3 Encoded Data Input | Interface | Left | 7 | OK for software mode |
| 10 | NC | NC, no connection | NC | Left | 20 | OK for software mode |
| 11 | SCLK | Audio Serial Port Data Clock I/O | Interface | Left | 4 | OK |
| 12 | SYNC | Audio Serial Port Frame SYNC Clock I/O | Interface | Left | 5 | OK |
| 13 | SDATA | Audio Serial Port Data Input | Interface | Left | 6 | OK |
| 14 | NC | NC, no connection | NC | Left | 21 | OK for software mode |
| 15 | *RST | RST, active-low Reset Input | Control | Right | 12 | OK; active-low notation differs only by using * prefix |
| 16 | DGND | Digital Ground | Ground | Bottom | 28 | OK |
| 17 | TX- | Transmitter Line Driver Output | Output | Right | 17 | OK |
| 18 | TX+ | Transmitter Line Driver Output | Output | Right | 18 | OK |
| 19 | VDD | Digital core power supply, +5 V nominal | Power | Top | 1 | OK |
| 20 | NC | NC, no connection | NC | Right | 22 | OK for software mode |
| 21 | NC | NC, no connection | NC | Right | 23 | OK for software mode |
| 22 | *INT | INT, open-drain active-low interrupt output; requires 10 kΩ pull-up to VIO | Control | Right | 14 | OK; active-low notation differs only by using * prefix |
| 23 | NC | NC, no connection | NC | Right | 24 | OK for software mode |
| 24 | NC | NC, no connection | NC | Right | 25 | OK for software mode |
| 25 | BLS | Block Start I/O | Control | Right | 15 | OK |
| 26 | NC | NC, no connection | NC | Right | 26 | OK for software mode |
| 27 | U | User Data Input | Digital | Right | 16 | OK |
| 28 | MODE | Control Mode Input; MODE = 0 for software mode | Control | Right | 11 | OK |
Power pins were ordered first: VDD then VIO. Ground pins were ordered last: DGND pin 8 then DGND pin 16. Other pins were grouped logically between them and distributed left/right to balance the symbol.
Footprint check
The footprint is a 28-pad TSSOP/PW28-style SMD footprint.
Observed footprint characteristics from the embedded KiCad footprint asset:
- 28 SMD rectangular pads.
- Pad pitch: 0.65 mm.
- Pad size: 1.6764 mm x 0.3556 mm.
- Pad row center spacing: about 5.6388 mm.
- Silkscreen/fab value text: PW28.
- 3D model asset: PW0028A.stp.
Datasheet PW package characteristics:
- Package: PW plastic small-outline package, TSSOP-28.
- JEDEC family: MO-153.
- Body length for 28 pins: 9.60 mm to 9.80 mm.
- Body width: 4.30 mm to 4.50 mm.
- Overall width: 6.20 mm to 6.60 mm.
- Lead pitch: 0.65 mm.
- Lead width: 0.19 mm to 0.30 mm.
- Package height: 1.20 mm max.
Footprint status: pin count and pitch match the datasheet PW/TSSOP-28 package. The pad size is a PCB land-pattern dimension rather than a package lead dimension, so it is expected to be larger than the lead width. The datasheet package drawing does not provide a full recommended PCB land pattern, so the imported footprint should still be checked against the assembler/fabricator preferred IPC land pattern if this part will be manufactured.
Mismatches and flags
- MPN property mismatch: the project property currently says
DIT4192_PW_28, while the TI orderable MPN isDIT4192IPWfor tube orDIT4192IPWRfor tape-and-reel. I did not change this because the latest user instruction only asked to assign orientation/section/order properties. - Symbol represents software mode only: the schematic pin names match the datasheet Software Mode table with MODE = 0. The DIT4192 datasheet also defines a Hardware Mode pin table with alternate functions on several pins. Those hardware-mode aliases are not represented in the current symbol.
- Pin electrical type / pin description properties are incomplete: the terminals still show
Pin Type: Unspecified, and the detailed pin-description property is not populated. I did not modify these because the requested direct edit scope was orientation, section, and terminal order only. - Footprint land pattern source: the footprint appears dimensionally consistent for PW/TSSOP-28 pitch and pin count, but the TI datasheet provides package dimensions rather than a complete recommended land pattern. Confirm against the intended assembler's land-pattern rules before production.
Datasheet source
Part metadata review
Key datasheet specs
Applied symbol organization assignments
Footprint check
Mismatches and flags
