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Texas Instruments TLC320AC01CPM
- Part No.:
- TLC320AC01CPM
- Manufacturer:
- Texas Instruments
- Category:
- CODECS
- Package:
- 64-LQFP
- Datasheet:
-
TLC320AC01CPM.pdf
- Description:
- IC CODEC AUDIO 14 BIT 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,721
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Product details
Overview
TLC320AC01CPM from Texas Instruments is a single-supply, 14-bit analog interface circuit (AIC) integrating synchronous ADC and DAC channels, sixth-order switched-capacitor antialiasing and reconstruction filters, (sin x)/x compensation, and a programmable serial interface for DSP interfacing. It operates at up to 43.2 kHz sampling rate with 70 dB typical signal-to-distortion ratio and supports master, slave, and linear-codec timing modes in audio-band signal processing applications.
For engineers reviewing the TLC320AC01CPM datasheet, TLC320AC01CPM pinout, TLC320AC01CPM application, or TLC320AC01CPM equivalent, key selection considerations include its dual-channel synchronous operation, programmable filter bandwidths (3.6–10.8 kHz), differential architecture, 5-V single supply, and register-configurable gain/phase/filter settings for modems, speech processors, and industrial data acquisition systems.
Technical Context
The TLC320AC01CPM implements a fully synchronous dual-channel architecture: ADC and DAC operate concurrently within the same frame-sync interval using 2s-complement data format. Its internal timing is derived from MCLK (up to 10.368 MHz), with programmable division via A/B/A′ registers to generate FCLK (144–432 kHz) and sampling rates (7.2–43.2 kHz).
Filtering uses a sixth-order elliptic switched-capacitor antialiasing input filter plus a three-pole continuous-time stage, and a sixth-order elliptic reconstruction filter followed by (sin x)/x correction and another three-pole continuous-time stage. Analog loopback, phase adjustment, and free-run mode are software-controllable via eight internal registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit ADC and DAC - enables 84 dB theoretical SNR for high-fidelity audio and measurement-grade signal conversion |
| Sampling Rate | 7.2–43.2 kHz - configurable via B-register programming; max ADC rate 43.2 kHz, max DAC rate 25 kHz per datasheet Note 3 |
| Signal-to-Distortion Ratio | 70 dB typical - measured at VDD = 5 V, fs = 8 kHz, defining usable dynamic range in voiceband applications |
| Filter Bandwidth | 3.6–10.8 kHz - programmable low-pass cutoff via B-register; supports standard modem and telephony bands |
| Power Supply | Single 5-V supply - eliminates need for dual ±5 V rails; typical power dissipation is 100 mW |
| Interface Protocol | Serial port with FS/SCLK/DIN/DOUT - supports master, slave, and codec-emulation timing modes for flexible DSP integration |
| Analog Architecture | Fully differential throughout - reduces common-mode noise and improves PSRR in noisy industrial environments |
Pinout & Package
Package: PM (Plastic Leaded Chip Carrier), 48-pin, surface-mount. Pin-compatible with TLC320AC02CPM but with distinct electrical specifications per Appendix C of SLAS057D.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN+, IN− | Differential ADC input | Primary analog input pair; supports programmable gains of 0/6/12 dB or squelch; requires external biasing via VMID |
| AUX IN+, AUX IN− | Secondary ADC input | Alternative differential input path; selectable via Analog Configuration Register (Register 5) |
| OUT+, OUT− | Differential DAC output | Drives 3-V peak into 600-Ω differential load; supports 0/−6/−12 dB or squelch gain settings |
| DIN, DOUT | Serial data I/O | 2s-complement data transfer synchronized to SCLK; DOUT outputs ADC results or register reads |
| FS, FSD | Frame sync I/O | FS initiates data transfer; FSD is delayed active-low output for daisy-chaining slaves (programmable delay via Register 7) |
| MCLK, SCLK | Clock inputs | MCLK drives all internal logic; SCLK clocks serial data-internally generated in master mode, externally supplied in slave mode |
| RESET, PWR DWN | Control inputs | Asynchronous reset initializes registers to defaults (16-kHz rate, 7.2-kHz BW); PWR DWN enables low-power standby with state retention |
| MON OUT | Monitor output | High-impedance buffered copy of analog input path; gain programmable to 0/−8/−18 dB or squelch |
Key Features
| Feature | Design Value |
|---|---|
| Programmable filter bandwidth | 3.6–10.8 kHz via B-register - enables compliance with ITU-T V.22/V.32 modem standards without external filtering |
| Synchronous dual-channel operation | ADC and DAC share identical frame-sync timing - eliminates inter-channel latency skew critical for echo cancellation and real-time control loops |
| (sin x)/x error correction | Integrated in DAC reconstruction path - compensates for zero-order hold droop, preserving amplitude flatness up to Nyquist frequency |
| Hardware-programmable phase shift | Adjustable sampling point via A′ register (0–255 × MCLK period) - allows fine-tuning of sampling instant to mitigate clock jitter effects |
| Three operating modes | Stand-alone (self-clocked), master-slave (one master coordinates multiple AICs), and codec emulation (host-controlled timing) - supports scalable system architectures |
Applications
| Modem Data Interface | Voiceband Signal Processing |
|---|---|
Use Scenario: Full-duplex V.32/V.34 modem front end interfacing with TMS320C5x DSP. IC Role / Device Role / Timing Role: Dual-channel AIC providing simultaneous 14-bit ADC/DAC conversion synchronized to DSP serial port; handles antialiasing/reconstruction and (sin x)/x correction. Use Value: Eliminates need for external op-amps, filters, and level-shifting circuitry; supports 9.6–33.6 kbps data rates with <70 dB THD+N. |
Use Scenario: Speech encoder/decoder in industrial voice recorder with analog microphone and speaker interface. IC Role / Device Role / Timing Role: Stand-alone AIC generating its own MCLK-derived timing; processes 8-kHz sampled voice with programmable 3.6-kHz low-pass filtering. Use Value: Single-chip solution reduces BOM count and PCB area; differential I/O rejects EMI in factory-floor acoustic environments. |
| DSP-Based Spectral Analyzer | Industrial Process Monitoring |
Use Scenario: Real-time FFT-based vibration analysis system using TMS320C6713 DSP and piezoelectric sensor inputs. IC Role / Device Role / Timing Role: Master-mode AIC acquiring 14-bit sensor data at 21.6 kHz; provides MON OUT for analog trigger signal generation. Use Value: Programmable high-pass pole (15 Hz) removes DC offset from transducer signals; 70 dB dynamic range captures weak harmonics amid mechanical noise. |
Use Scenario: Analog I/O module in PLC rack acquiring 4–20 mA current-loop sensor signals and driving analog actuators. IC Role / Device Role / Timing Role: Slave-mode AIC synchronized to central controller's codec timing; interfaces with isolated input/output stages via IN+/IN− and OUT+/OUT−. Use Value: Differential architecture rejects ground-loop noise; register-controlled gain scaling accommodates varying sensor sensitivities without hardware changes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog interface circuit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC320AC02CPM | Functionally identical architecture but tighter AC specs: 72 dB min SNR vs. 70 dB typ; lower THD+N; higher gain accuracy per Appendix C | Better suited for high-fidelity audio or precision instrumentation where >70 dB dynamic range is mandatory | Select TLC320AC02CPM when datasheet-minimum SNR and THD+N must be guaranteed across temperature |
| TLV320AIC10IPFB | Successor-generation 16-bit sigma-delta AIC; integrated PGA, headphone driver, and enhanced digital filters; requires 3.3-V supply | Supports wider bandwidth (20 kHz), lower power (35 mW), and modern DSP interfaces (I²S, left-justified), but not pin-compatible | Choose TLV320AIC10IPFB for new designs requiring higher resolution, lower power, or I²S compatibility-requires PCB redesign |
Compared with TLC320AC02CPM, the TLC320AC01CPM offers slightly relaxed AC performance but identical register mapping and timing behavior; compared with TLV320AIC10IPFB, it provides legacy pinout and 5-V compatibility at the cost of resolution and power efficiency.
Availability
TLC320AC01CPM is available at Aetrix Electronics and suitable for modems, voiceband signal processors, and industrial data acquisition systems requiring stable component supply, long-term obsolescence management, and traceable sourcing for legacy design support.
Supply support for TLC320AC01CPM 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 technologies, with decades of expertise in precision signal chain solutions.
The TLC320AC01CPM belongs to TI's legacy analog interface circuit (AIC) product line, designed specifically for synchronous audio-band data conversion between analog sensors/actuators and DSPs in telecom, industrial, and instrumentation applications.
FAQ
What is the maximum sampling rate supported by the TLC320AC01CPM?
The TLC320AC01CPM supports a maximum ADC sampling rate of 43.2 kHz and a maximum DAC rate of 25 kHz, as specified in Note 3 of Table 1–1 in the SLAS057D datasheet. Exceeding these rates causes incomplete conversions and erroneous output data from the TLC320AC01CPM.
Does the TLC320AC01CPM require external antialiasing filters?
No, the TLC320AC01CPM integrates a sixth-order elliptic switched-capacitor antialiasing filter and a three-pole continuous-time stage, eliminating the need for external analog filters when operating within its specified filter bandwidths (3.6–10.8 kHz). External filtering is only required if the B register is programmed below 10 (per Note 2) or above 20 (per Note 1) in the TLC320AC01CPM datasheet.
How does the FSD pin function in a multi-AIC master-slave configuration?
In master-slave mode, the FSD pin of the TLC320AC01CPM outputs a delayed version of the master's FS signal, with delay programmable via Register 7 (FSD register). This delayed frame-sync signal connects to the FS input of the next slave device, enabling precise daisy-chained synchronization across multiple TLC320AC01CPM units without external timing logic.
Can the TLC320AC01CPM operate with a 3.3-V supply?
No, the TLC320AC01CPM is specified only for 5-V operation (VDD = 5 V) per Section 3.2 "Recommended Operating Conditions" in SLAS057D. Its internal references, amplifier headroom, and digital logic thresholds are designed for 5-V rail; operation at 3.3 V is not characterized and may result in failure of ADC/DAC conversion or serial communication in the TLC320AC01CPM.
What is the purpose of the MON OUT pin on the TLC320AC01CPM?
The MON OUT pin provides a high-impedance buffered copy of the analog input signal path before ADC conversion. Its gain is programmable to 0 dB, −8 dB, −18 dB, or squelch (mute) via Register 4, enabling non-intrusive monitoring, analog trigger generation, or feedback loop injection without loading the primary input stage of the TLC320AC01CPM.
TLC320AC01CPM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 64-LQFP
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Audio
- Data Interface:
- Serial
- Resolution (Bits):
- 14 b
- Number of ADCs / DACs:
- 1 / 1
- Sigma Delta:
- No
- S/N Ratio, ADCs / DACs (db) Typ:
- -
- Dynamic Range, ADCs / DACs (db) Typ:
- -
- Voltage - Supply, Analog:
- 4.5V ~ 5.5V
- Voltage - Supply, Digital:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-LQFP (10x10)
TLC320AC01CPM FAQ
1.How can I place an order for TLC320AC01CPM through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC320AC01CPM 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 TLC320AC01CPM reliable?
The price and inventory of TLC320AC01CPM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC320AC01CPM is usually 5 days.
3.What payment methods are accepted for TLC320AC01CPM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC320AC01CPM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC320AC01CPM?
TLC320AC01CPM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC320AC01CPM 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 TLC320AC01CPM?
For technical support, including TLC320AC01CPM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC320AC01CPM requirements.
6.How does Aetrix verify that TLC320AC01CPM is sourced from the original manufacturer or authorized distributors?
All TLC320AC01CPM 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 TLC320AC01CPM meets industry standards.
7.What is the process for return or replacement of TLC320AC01CPM?
All TLC320AC01CPM units undergo pre-shipment inspection (PSI). If there is an issue with TLC320AC01CPM, 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 TLC320AC01CPM part is unused and in its original packaging.
Return procedure for TLC320AC01CPM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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