TLV320AIC20CPFBG4

Codecs Overview

The TLV320AIC20CPFBG4 is a low-power, highly integrated, programmable 16-bit, dual-channel CODEC manufactured by Texas Instruments. It features two 16-bit oversampling sigma-delta A/D converters and two 16-bit D/A converters with a maximum sampling rate of 26 Ksps when using internal filters, or up to 104 Ksps with filters bypassed. The device operates on separate analog and digital supplies: AVDD ranges from 2.7 V to 3.6 V, DVDD from 1.65 V to 1.95 V, and IOVDD from 1.1 V to 3.6 V. It provides typical signal-to-noise ratios of 84 dB for the ADC and 92 dB for the DAC over a 13-kHz bandwidth. Packaged in a 48-TQFP (7x7) format, it supports commercial temperature operation from 0°C to 70°C.

Codecs Feature Summary

• Integrates stereo 16-bit oversampling sigma-delta A/D and D/A converters with selectable FIR/IIR digital filters.
• Includes built-in analog functions such as microphone amplifiers, handset/headset drivers, an 8-ohm speaker driver, and programmable gain amplifiers.
• Features a SMARTDM serial port for glueless interface to DSPs and a flexible 2-wire host port supporting I2C or S2C protocols.
• Supports extensive power management with hardware/software control for independent section shutdown.

Codecs Applications

• Wireless accessories
• Hands-free car kits
• VOIP systems
• Speech processing

Codecs Procurement Notes

Verify the specific suffix 'PFBG4' indicates the lead-free RoHS-compliant version in the 48-TQFP package. Confirm the 'C' designation aligns with the required commercial operating temperature range of 0°C to 70°C. Cross-reference the manufacturer part number against current datasheet revisions to ensure pinout and electrical specifications remain unchanged.

Codecs Selection Notes

Select this component for voice-band applications requiring high integration and low power consumption. Ensure the system design accommodates the separate analog, digital, and I/O supply voltage requirements. Verify that the available master clock frequency allows for the desired sampling rate configuration within the PLL constraints if fine sampling is needed.

Codecs Part Context

This device belongs to the TLV320AIC2x family, which includes variants like the AIC20, AIC21, AIC24, and AIC25. The 'K' suffix variants offer industrial temperature ratings, while the 'C' suffix denotes commercial grade. The 'G4' suffix typically signifies lead-free packaging compliant with environmental directives.

Codecs Replacement Considerations

Direct replacements within the same family include TLV320AIC20IPFBG4 (industrial temp) or TLV320AIC21/24/25 variants if specific analog output configurations differ. Check datasheet differences regarding built-in speaker drivers or input/output pin assignments before substitution.