Voice-band codec with 16-bit sigma-delta conversion
The TLV320AIC12CDBTRG4 is a Voice-Band codec from Texas Instruments, built around a 16-bit sigma-delta ADC and DAC in a single-channel (1 ADC / 1 DAC) configuration. It targets telephony, VoIP, and audio front-end applications where the passband is limited to roughly 300 Hz–3.4 kHz. The serial data interface keeps the pin count low on the 30-TSSOP package, but the trade-off is that the host processor must supply the bit clock and frame-sync — no embedded PLL for standalone operation.
SNR 88/92 dB and dual supply rails
ADC SNR is 88 dB typical, DAC SNR is 92 dB typical — these numbers are adequate for voice-band but would be marginal for high-fidelity music. The dynamic range tracks similarly at 85 dB (ADC) and 92 dB (DAC) typical. That means your power tree needs two regulators or LDOs — a single 3.3 V rail will not satisfy the digital core.
Active production — commercial temperature grade
Package and footprint — 30-TSSOP
Housed in a 30-TFSOP (0.173-inch, 4.40 mm width) package, the supplier device package is 30-TSSOP. Surface-mount assembly: the package is MSL-rated per TI standard for TSSOP. No exposed pad — thermal dissipation relies on the leadframe and board copper. Verify the reflow profile against the moisture sensitivity level before the first production run.