My Inquiry
My Account
Texas Instruments TLC320AC01CFNR
- Part No.:
- TLC320AC01CFNR
- Manufacturer:
- Texas Instruments
- Category:
- CODECS
- Package:
- 28-LCC (J-Lead)
- Datasheet:
-
TLC320AC01CFNR.pdf
- Description:
- IC AUDIO BAND CODEC 14BIT 28PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:1,967
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLC320AC01CFNR 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 port for DSP interfacing. It operates in master, slave, or codec emulation modes with 7.2–21.6 kHz conversion rates and supports differential audio signal conditioning in industrial and telecom applications.
For engineers reviewing the TLC320AC01CFNR datasheet, TLC320AC01CFNR pinout, TLC320AC01CFNR application, or TLC320AC01CFNR equivalent, key selection considerations include its 14-bit resolution, 70 dB typical signal-to-distortion ratio, programmable filter bandwidths up to 10.8 kHz, and support for 5-V single-supply operation with differential input/output architecture.
Technical Context
The TLC320AC01CFNR implements a dual-channel synchronous architecture: the ADC channel includes a sixth-order elliptic low-pass antialiasing filter followed by a single-pole high-pass filter and three-pole continuous-time stage; the DAC channel features a sixth-order elliptic reconstruction filter, second-order (sin x)/x correction, and identical continuous-time output stage. Both channels share a common MCLK-driven timing engine and operate in 2s-complement format.
Control is register-based via an 8-register set (0–8), enabling configuration of sampling rate (via A/B/A′ counters), filter bandwidth (B register), amplifier gains (Register 4), analog path routing (Register 5), digital mode functions (Register 6), and frame-sync delay (Register 7). Hardware control terminals FC0/FC1 support secondary communication requests and phase adjustments without software intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit ADC and DAC - enables 84 dB theoretical SNR for high-fidelity audio and precision instrumentation digitization |
| Signal-to-Distortion Ratio | 70 dB typical - meets requirements for voice-band modems and speech processing systems |
| Filter Bandwidth | Programmable up to 10.8 kHz - supports full telephony bandwidth (0.3–3.4 kHz) with margin for anti-aliasing |
| Conversion Rate | 7.2–21.6 kHz - configurable via B register to match host DSP frame rates and clock domains |
| Power Dissipation | 100 mW typical at 5 V - suitable for thermally constrained embedded designs without active cooling |
| Analog Supply | Single 5-V supply for ADC/DAC sections - eliminates need for dual ±5 V rails in legacy analog front ends |
| Output Drive | Differential 3-V peak into 600-Ω load - directly interfaces with transformer hybrids in line-card and modem designs |
Pinout & Package
Package: 28-pin SOIC (FN package), RoHS-compliant, surface-mount. Pinout validated per SLAS057D datasheet Section 1.3 and 1.4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN+, IN− | Differential ADC input | Primary analog input pair with programmable gain (0/6/12 dB); requires external biasing via VMID |
| AUX IN+, AUX IN− | Secondary ADC input | Alternative differential input path selectable via Register 5; supports summing with primary inputs |
| OUT+, OUT− | Differential DAC output | Capable of 3-V peak swing into 600-Ω balanced load; supports single-ended use with buffered VMID reference |
| 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 provides delayed sync for cascaded slave devices (programmed via Register 7) |
| MCLK, SCLK | Clock inputs | MCLK drives all internal logic; SCLK clocks serial data-generated internally (master) or externally (slave/codec) |
| RESET, PWR DWN | Control inputs | Asynchronous reset initializes registers to defaults; PWR DWN enables low-power state while preserving configuration |
| ADC VMID, DAC VMID | Analog mid-rail references | Buffered midsupply outputs requiring bypass capacitors; serve as bias references for differential input/output stages |
Key Features
| Feature | Design Value |
|---|---|
| Dual synchronous 14-bit ADC/DAC | Enables real-time full-duplex audio processing with matched latency and jitter performance across both paths |
| Programmable sixth-order elliptic filters | Provides sharp roll-off (−70 dB at 2× bandwidth) without external components-reduces BOM count and layout area |
| (sin x)/x correction on DAC path | Compensates for zero-order hold droop, improving passband flatness and reducing harmonic distortion above 3 kHz |
| Monitor output with selectable gain | MON OUT provides real-time analog monitoring of ADC input at 0/−8/−18 dB or squelch-supports debug and level detection |
| Hardware-configurable master/slave operation | M/S pin selects mode; FC0/FC1 enable phase-shift and secondary comms without CPU overhead-critical for deterministic timing |
Applications
| Modem Analog Front End | Voice-Band DSP Interface |
|---|---|
Use Scenario: Full-duplex V.34/V.90 modem line interface with echo cancellation and adaptive equalization. IC Role / Device Role / Timing Role: ADC digitizes received analog line signals; DAC reconstructs transmit signals; synchronous 16-bit serial interface aligns with TMS320C5x DSP timing. Use Value: Integrated antialiasing and reconstruction filters eliminate four external op-amp filter stages; 70 dB SNR ensures clean symbol decision in noisy PSTN environments. |
Use Scenario: Real-time speech coding/decoding in embedded VoIP gateway using TI C54x DSP. IC Role / Device Role / Timing Role: Stand-alone AIC mode generates MCLK-derived SCLK/FS; provides 8-kHz sampling with 3.6-kHz filter bandwidth matching G.711 μ-law requirements. Use Value: Programmable gain on IN+/IN− and MON OUT enables automatic level control and signal integrity verification without external PGA or test points. |
| Industrial Data Acquisition Channel | Acoustic Signal Analyzer Front End |
Use Scenario: 14-bit precision acquisition of vibration or pressure sensor outputs in PLC analog I/O modules. IC Role / Device Role / Timing Role: ADC channel conditioned for low-noise differential sensing; DAC used for calibrated analog output generation or self-test stimulus. Use Value: Differential architecture rejects common-mode noise on long sensor cables; 100 mW power enables integration into space-constrained DIN-rail enclosures. |
Use Scenario: Portable spectral analyzer capturing 0–10 kHz acoustic spectra from microphone preamps. IC Role / Device Role / Timing Role: Configured for 21.6 kHz sampling and 10.8 kHz filter bandwidth to maximize Nyquist zone; auxiliary inputs route calibration tones. Use Value: Sixth-order elliptic filter achieves >60 dB stopband attenuation at 12 kHz-enabling accurate FFT bin separation without post-processing windowing artifacts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog interface circuit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC320AC02CFNR | Functionally identical but specified for wider temperature range (−40°C to 85°C) and tighter AC specs (e.g., 72 dB min SNR vs. 70 dB typ) | Better suited for extended-temperature industrial or automotive cabin applications where thermal stability is critical | Select TLC320AC02CFNR when operating beyond 0–70°C or requiring guaranteed minimum SNR over full temp range |
| TLV320AIC10IPFB | Successor device with 16-bit resolution, lower power (35 mW), sigma-delta architecture, and integrated PLL-but requires 3.3-V I/O and different register map | Designed for modern low-voltage portable audio systems; lacks native 5-V compatibility and direct register compatibility | Choose TLV320AIC10IPFB only for new designs targeting reduced power and higher resolution; not drop-in compatible |
Compared with TLC320AC01CFNR, TLC320AC02CFNR offers enhanced thermal robustness and guaranteed AC performance, while TLV320AIC10IPFB delivers higher resolution and efficiency at the cost of architectural and voltage-level incompatibility-making TLC320AC01CFNR optimal for legacy 5-V DSP-based systems requiring proven reliability in commercial temperature range.
Availability
TLC320AC01CFNR is available at Aetrix Electronics and suitable for modem design, voice-band DSP interfacing, industrial data acquisition, and acoustic signal analysis requiring stable component supply and long-term obsolescence management.
Supply support for TLC320AC01CFNR 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 digital signal technologies with over 50 years of innovation in mixed-signal ICs.
The TLC320AC01CFNR belongs to TI's legacy analog interface circuit (AIC) product line, designed specifically to simplify audio-band signal interfacing between analog sensors/transducers and TMS320-series DSPs in telecom and industrial systems.
FAQ
What is the maximum supported sampling rate for the TLC320AC01CFNR ADC and DAC channels?
The TLC320AC01CFNR ADC channel supports a maximum sampling rate of 43.2 kHz, while the DAC channel is limited to 25 kHz. These limits are defined by internal timing constraints and filter settling requirements. Operation above these rates causes incomplete conversions and erroneous output data, as confirmed in Section 1–7 Note 3 of the SLAS057D datasheet. The TLC320AC01CFNR must be configured within these bounds for reliable operation.
Does the TLC320AC01CFNR require external antialiasing filtering?
No, the TLC320AC01CFNR integrates a sixth-order elliptic switched-capacitor antialiasing filter with a three-pole continuous-time stage, eliminating the need for external analog filters under standard operating conditions. However, if the B register is programmed for values less than 10 (resulting in conversion rates >21.6 kHz), the internal filter bandwidth exceeds specification and external filtering becomes necessary-per Note 2 in Table 1–1 of the SLAS057D datasheet.
How does the FSD pin function in multi-device configurations?
The FSD (frame-sync delayed) pin on the TLC320AC01CFNR outputs an active-low frame-sync signal delayed by a user-programmed number of SCLK cycles (set via Register 7). In master-slave chains, this delayed signal drives the FS input of downstream slave devices, ensuring precise inter-device synchronization without external logic. The delay value must be written last during register programming to guarantee correct latching on the 16th SCLK falling edge.
Can the TLC320AC01CFNR operate with a 3.3-V digital supply?
No, the TLC320AC01CFNR requires a 5-V digital supply (DGTL VDD) as specified in Section 3.2 "Recommended Operating Conditions" of SLAS057D. Its digital I/O structure-including DIN, DOUT, FS, SCLK, and M/S-is designed for 5-V TTL/CMOS logic levels. Applying 3.3 V may result in unreliable register access, timing violations, or failure to enter master mode. For 3.3-V systems, consider the pin-incompatible TLV320AIC10IPFB instead.
What is the purpose of the MON OUT pin on the TLC320AC01CFNR?
The MON OUT pin provides a buffered, high-impedance analog copy of the ADC input signal path after programmable gain adjustment (0 dB, −8 dB, −18 dB, or squelch). It enables real-time signal monitoring, level detection, or diagnostic verification without loading the main signal chain. As described in Section 1.1 and Figure 6–1 of SLAS057D, MON OUT is independent of DAC activity and remains active in all operational modes of the TLC320AC01CFNR.
TLC320AC01CFNR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 28-LCC (J-Lead)
- Packaging:
- Tape & Reel (TR)
- 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:
- 28-PLCC (11.51x11.51)
TLC320AC01CFNR FAQ
1.How can I place an order for TLC320AC01CFNR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC320AC01CFNR 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 TLC320AC01CFNR reliable?
The price and inventory of TLC320AC01CFNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC320AC01CFNR is usually 5 days.
3.What payment methods are accepted for TLC320AC01CFNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC320AC01CFNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC320AC01CFNR?
TLC320AC01CFNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC320AC01CFNR 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 TLC320AC01CFNR?
For technical support, including TLC320AC01CFNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC320AC01CFNR requirements.
6.How does Aetrix verify that TLC320AC01CFNR is sourced from the original manufacturer or authorized distributors?
All TLC320AC01CFNR 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 TLC320AC01CFNR meets industry standards.
7.What is the process for return or replacement of TLC320AC01CFNR?
All TLC320AC01CFNR units undergo pre-shipment inspection (PSI). If there is an issue with TLC320AC01CFNR, 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 TLC320AC01CFNR part is unused and in its original packaging.
Return procedure for TLC320AC01CFNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC320AC01CFNR Tags
-
NAU88C22YG
Nuvoton Technology Corporation
-
TLV320AIC3100IRHBR
Texas Instruments
-
DA7212-01UM2
Renesas
-
NAU8810YG
Nuvoton Technology Corporation
-
DA7218-00U32
Renesas
-
CMX655DQ6-TR1K
CML Micro
-
SGTL5000XNLA3
NXP Semiconductors
-
TLV320AIC3104IRHBR
Texas Instruments
-
MAX9867EWV+T
Analog Devices Inc./Maxim Integrated
-
MAX9860ETG+T
Analog Devices Inc./Maxim Integrated
-
TLV320AIC3106IRGZR
Texas Instruments
-
SGTL5000XNLA3R2
NXP Semiconductors
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
