TLV320AIC1109PBS Texas Instruments Integrated Circuit (Quad Flat Packages) In Stock
TLV320AIC1109 is a single-channel PCM codec with 15-bit linear coding and A-law/mu-law companding, designed for voice-band audio processing. Operating in synchronous mode with an integrated filter stage and 1 dB gain tolerance, it interfaces directly with telecom and VoIP systems. Packaged in a 32-pin QFP for high-density surface-mount assembly.
- Manufacturer
- Texas Instruments
- Package
- Quad Flat Packages
- Pin Count
- 32
- Lifecycle
- OBSOLETE
- Datasheet
- TLV320AIC1109PBS Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $6.5493(MOQ 500)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TLV320AIC1109PBS?
- 15-bit linear PCM coding with A-law and mu-law companding for PSTN compatibility
- Integrated transmit and receive filter for voice-band signal conditioning
- Synchronous serial interface for direct connection to DSP and CODEC buses
- 1 dB maximum gain tolerance for accurate voice-level reproduction
- Single-channel full-duplex operation for telephone and VoIP handsets
- 32-pin QFP package for compact PCB layouts in communication equipment
What is TLV320AIC1109PBS used for?
The TLV320AIC1109 is designed for voice telephony applications including PSTN subscriber line interfaces, VoIP terminal adapters, and IP phone handsets that require A-law or mu-law companding per ITU-T G.711 standards. Its synchronous operation and integrated filter make it suitable for digital telephone exchange line cards and DSP-based voice processing modules. It is also used in conferencing systems and voice-band data modems where precise 15-bit PCM encoding with low gain error is required.
What are the specifications of TLV320AIC1109PBS?
| Pbfree Code | No |
| YTEOL | 0 |
| Companding Law | A/MU-LAW |
| Filter | YES |
| Gain Tolerance-Max | 1dB |
| JESD-30 Code | S-PQFP-G32 |
| JESD-609 Code | e4 |
| Linear Coding | 15-BIT |
| Number of Functions | 1 |
| Operating Mode | SYNCHRONOUS |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TQFP32,.28SQ |
| Package Shape | SQUARE |
| Package Style | FLATPACK, THIN PROFILE, FINE PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max | 0.008mA |
| Supply Voltage-Nom | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Telecom IC Type | PCM CODEC |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Quad Flat Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| HTS Code | 8542.39.00.01 |
Where can I find the TLV320AIC1109PBS datasheet?
TLV320AIC1109PBS Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TLV320AIC1109PBS?
Compatible alternatives and drop-in replacements for TLV320AIC1109PBS:
Frequently Asked Questions
What does 15-bit linear coding mean for the audio quality of the TLV320AIC1109?
The TLV320AIC1109 uses 15-bit linear PCM encoding before companding, providing a dynamic range of approximately 90 dB in linear mode before conversion to the 8-bit A-law or mu-law companded format. This ensures that the full voice-band frequency range from 300 Hz to 3400 Hz is captured with low quantization noise, meeting the SNR requirements of ITU-T G.711 telephony standards. The integrated filter limits aliasing and out-of-band noise, preserving voice intelligibility across the 4 kHz Nyquist bandwidth.
How does A-law versus mu-law companding selection affect deployment region for the TLV320AIC1109?
A-law companding is the ITU-T standard used in European and most international PSTN networks, while mu-law companding is the standard used in North American and Japanese telephone networks. The TLV320AIC1109 supports both companding laws, allowing the same hardware design to be deployed globally by configuring the appropriate mode via its control interface. Choosing the wrong companding law introduces a systematic distortion across all voice levels that degrades speech quality and fails compliance testing for PSTN or VoIP interconnect certification.
Which serial bus interface does the TLV320AIC1109 use to connect to a host DSP or microcontroller?
The TLV320AIC1109 uses a synchronous serial interface compatible with TDM and PCM highway formats, operating in synchronous mode with a frame sync and serial clock. It connects directly to DSP MCBSP ports, SoC PCM interfaces, or dedicated codec buses without requiring additional glue logic. The serial clock rate is typically 2.048 MHz for 8 kHz sample rate voice channels, consistent with E1/T1 telecom framing used in 30-channel or 24-channel PCM systems.
For a VoIP phone design, how does the TLV320AIC1109 compare to a more modern audio codec with 24-bit resolution?
For voice telephony compliant with ITU-T G.711, 15-bit linear encoding with 8-bit companded output is sufficient, and the TLV320AIC1109 is optimized for this standard without the cost or power overhead of a 24-bit wideband audio codec. Modern 24-bit codecs offer audio bandwidth from 20 Hz to 20 kHz and are better suited for music reproduction or HD voice (G.722), while the TLV320AIC1109 targets the 300 Hz to 3400 Hz narrowband voice channel with a sample rate of 8 kHz. Where wideband VoIP or HD audio is required, a 16-bit or 24-bit wideband codec such as the TLV320AIC3x family should be selected instead.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 500+ | $6.7460 | $3372.99 |
| 750+ | $6.6527 | $4989.50 |
| 1250+ | $6.5493 | $8186.65 |
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