73K212AL overview
73K212AL is a component documented by TDK Electronics. The PDF description identifies it as "V.22, V.21, Bell 212A, Bell 103 Single-Chip Modem with Integrated Hybrid." This guide condenses the most useful engineering information from the available PDF so that designers and sourcing teams can identify the checks that still need confirmation in the original document.
Datasheet snapshot
- Manufacturer: TDK Electronics
- Part number: 73K212AL
- Category: IC
- Datasheet length: 26 Pages
Key features noted in the PDF
- Includes features of 73K222AL single-chip modem
- One-chip CCITT V.22, V.21, Bell 212A and Bell 103 standard compatible modem data pump
- Full-duplex operation at 0-300 bit/s (FSK) or 600 and 1200 bit/s (DPSK)
- On chip 2-wire/4-wire hybrid driver and off- hook relay buffer driver
- Serial or parallel microcontroller control interface
- Interfaces directly with standard microcontroller (8048, 80C51 typical)
- Serial port for data transfer
Specifications and operating details
The following points were extracted from the PDF text. Check the associated conditions, notes and limits in the complete document before using a value in a design.
- In Bell 212A mode, the 73K222BL provides the normal Bell 212A and Bell 103 functions and employs a 2225 Hz answer tone.
- The 73K222BL in V.22 mode produces either 550 or 2100 Hz answer tone, and allows 600 bit/s V.22 or 0-300 bit/s V.21 operation.
- It operates from a single +5 V supply.
- Internal pattern generators are also included for self-testing. (continued) Includes features of 73K222AL single-chip modem One-chip CCITT V.22, V.21, Bell 212A and Bell 103 standard compatible modem data pump Full-duplex operation at 0-30.
- In addition, an off hook relay driver with 40 mA drive capability is also included to allow use of commonly available mechanical telecom relays.
- V.22, V.21, Bell 212A, Bell 103 Single-Chip Modem with Integrated Hybrid Serial data from the demodulator is passed first through the data descrambler and then through the SYNC/ASYNC converter.
- The Bell 212A standard defines synchronous operation only at 1200 bit/s.
Topics covered by the datasheet
The document includes sections related to:
- DESCRIPTION
- FEATURES
- ORDERING INFORMATION
Engineering review checklist
- Verify capacitance tolerance, rated voltage, temperature range and any DC-bias derating.
- Check ESR, ripple-current capability, lifetime and polarity requirements under worst-case conditions.
- Confirm package dimensions, land pattern and reflow or mounting limits for the selected ordering code.
Always confirm values against the latest manufacturer-controlled datasheet, especially when qualifying a substitute or releasing a production BOM.
View the complete PDF and model record
Open the 73K212AL datasheet and model details to review the complete PDF, document pages and available product information.
Source attribution
Adapted from the PDF associated with this DigiCamel model page.
Source model URL: https://www.digicamel.com/product.php?slug=73k212al-tdk-electronics