Texas Instruments TP13054ADWR

Overview

TP13054ADWR from Texas Instruments is a monolithic PCM codec and filter IC designed for full-duplex voice telephony interface in TDM systems. It integrates µ-law A/D and D/A conversion, transmit high-pass/low-pass filtering, receive low-pass filtering with (sin x)/x correction, active RC noise filters, and internal precision voltage reference. Operates at ±5 V, consumes 50 mW typical active power, and supports –40°C to 85°C industrial temperature range.

For engineers reviewing the TP13054ADWR datasheet, TP13054ADWR pinout, TP13054ADWR application, or TP13054ADWR equivalent, this device is selected for line-interface cards requiring integrated analog-to-PCM conversion, low idle noise, synchronous/asynchronous clock flexibility, and compatibility with T1/E1 carrier timing standards.

Technical Context

The TP13054ADWR implements a complete PCM codec architecture with separate transmit and receive signal paths, each including switched-capacitor band-pass and low-pass filtering, autozero circuitry, and precision voltage reference. Its dual master-clock inputs (MCLKX/MCLKR/PDN) support both synchronous (single-clock) and asynchronous (dual-clock) operation modes, with selectable 1.536 MHz, 1.544 MHz, or 2.048 MHz frequencies via BCLKR/CLKSEL logic control.

It features TTL/CMOS-compatible digital I/O, 3-state DX output enabled by FSX, open-drain TSX encoder timing pulse, and analog interfaces with VFXI± differential transmit input and VFRO single-ended receive output. Power-down mode reduces supply current to 1 mA typical and disables all analog functions while preserving digital interface readiness.

Key Specifications

Pinout & Package

TP13054ADWR is housed in a 16-pin SOIC (DW) package with gull-wing leads, 1.27 mm pitch, and JEDEC MS-012AC outline. The package supports surface-mount reflow assembly and provides thermal dissipation up to 533 mW at 85°C ambient.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PCM codec and filtering applications.

Compared with TP3054ADWR, TP13054ADWR adds extended temperature support and improved thermal robustness for uncontrolled environments; compared with MC145506P, it delivers full integration, lower component count, and guaranteed µ-law compliance without external tuning.

Availability

TP13054ADWR is available at Aetrix Electronics and suitable for T1 carrier line cards, PABX subscriber interface modules, and digital encryption terminals requiring stable component supply across industrial temperature ranges and long product lifecycles.

Supply support for TP13054ADWR 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 connectivity solutions with decades of telecom infrastructure heritage.

The TP13054ADWR belongs to TI's legacy telecom codec family, engineered specifically for analog-to-digital voice interface in carrier-grade line cards, central office switches, and industrial telephony systems.

FAQ

What is the operating temperature range for TP13054ADWR?

The TP13054ADWR is specified for operation from –40°C to +85°C, making it suitable for industrial and outdoor telecom deployments where ambient conditions exceed commercial-grade limits. This extended range is confirmed in the absolute maximum ratings table and operating conditions section of the SCTS026C datasheet, distinguishing it from the commercial-grade TP3054A variant.

Does TP13054ADWR support both synchronous and asynchronous clocking modes?

Yes, TP13054ADWR supports both modes: in synchronous mode, MCLKX serves as the master clock for both transmit and receive paths (with MCLKR/PDN grounded), while in asynchronous mode, independent MCLKX and MCLKR clocks may be applied - provided they meet frequency requirements (1.536/1.544 MHz for µ-law variants). This flexibility is documented in the "Synchronous Operation" and "Asynchronous Operation" sections of the datasheet.

What is the purpose of the TSX pin on TP13054ADWR?

The TSX pin on TP13054ADWR is an open-drain encoder timing strobe that pulses low during the encoder time slot. It provides precise synchronization for external circuitry such as sample-and-hold stages or encryption engines, aligning with the internal A/D conversion window. Its timing relationship to BCLKX is defined in the "Timing Requirements" table (td2 = 140 ns delay).

How does TP13054ADWR handle power sequencing to prevent latch-up?

TP13054ADWR requires strict power-up sequence per TI guidelines: 1) connect ANLG GND first, 2) apply VBB (–5 V), 3) apply VCC (+5 V), 4) assert power-down via MCLKR/PDN high, 5) apply clocks, 6) release power-down. Violating this risks latch-up due to parasitic SCR activation - a risk explicitly called out in the "System Reliability" section of the SCTS026C datasheet.

Is TP13054ADWR pin-compatible with National Semiconductor's TP3054A?

Yes, TP13054ADWR is pin-for-pin compatible with National Semiconductor's TP3054A, as stated in the device description: "These devices are pin-for-pin compatible with the National Semiconductor TP3054A and TP3057A, respectively." This compatibility extends to footprint, pin functions, and electrical timing - enabling drop-in replacement in existing designs originally using NS parts.