TP11368V/NOPB

Telecom Overview

The TP11368V/NOPB is an octal Adaptive Differential Pulse Code Modulation (ADPCM) transcoder compatible with ITU G.726 and ANSI T1.301 standards. It supports bit rates of 40, 32, 24, and 16 kbps. The device processes up to 16 independent half-duplex channels or 8 full-duplex channels within an 8 kHz frame. Each channel allows individual configuration for encoding or decoding. Data transfers occur via serial double-buffered registers using interrupt-based operations. The component operates on a single +5V supply with typical power consumption of 6 mW per full-duplex channel.

Telecom Feature Summary

• Supports CCITT G.726 compatibility at multiple bit rates and ANSI T1.301 compliance
• Enables individually configurable channels supporting both full and half duplex modes
• Features selectable µ-law or A-law PCM coding with asynchronous master clock operation
• Includes on-chip power-on reset and TTL/CMOS compatible inputs and outputs

Telecom Applications

• E1 trunk pair gain systems
• Voice and voice band data transmission transcoding
• Telecommunications interface circuits requiring ADPCM processing

Telecom Procurement Notes

Verify the specific ordering suffix V indicates the 28-pin PLCC package variant. Confirm that NOPB denotes lead-free status compliant with RoHS directives. Ensure the source documentation matches the SNAS568 literature number for accurate electrical specifications. Cross-reference pin assignments with the Plastic Leaded Chip Carrier physical dimensions provided in the datasheet.

Telecom Selection Notes

Select this component when designing systems requiring ITU G.726 compliant ADPCM conversion. Verify that the application requires a single 5V supply and asynchronous clocking capabilities. Consider the 28-pin PLCC package constraints for PCB layout. Evaluate if the 8-channel full-duplex capacity meets the system's bandwidth requirements without additional multiplexing.

Telecom Part Context

This part belongs to the TP113 series of adaptive differential PCM processors originally developed by National Semiconductor and now managed by Texas Instruments. The TP11368 specifically provides octal channel processing capabilities compared to other variants like the TP11362 which offers quad channel processing. The NOPB suffix aligns with industry-wide environmental compliance standards adopted during the transition period.

Telecom Replacement Considerations

Public confirmed substitute part numbers include TP11368V and TP11368N. These variants share identical functional specifications but differ in package type. The TP11368V utilizes a 28-pin PLCC package while the TP11368N uses a 24-pin DIP package. No other functional substitutes are documented in the official datasheet.