Texas Instruments TLV320AIC1107PWR

Overview

TLV320AIC1107PWR from Texas Instruments is a single-chip PCM audio codec IC performing A/D and D/A conversion, transmit/receive filtering, and volume control for voice-band systems. It operates at 2.048 MHz master clock, supports 13-bit linear or 8-bit A-law companding, delivers differential earphone output into 8–32 Ω loads, and consumes just 7 mA typical supply current in active mode - deployed in digital handsets and cordless phones.

For engineers reviewing the TLV320AIC1107PWR datasheet, TLV320AIC1107PWR pinout, TLV320AIC1107PWR application, or TLV320AIC1107PWR equivalent, key selection criteria include its 300 Hz–3.4 kHz passband compliance with CCITT G.714, programmable microphone gain via external resistors, differential earphone mute capability, and TSSOP-20 packaging suitable for space-constrained voice terminals.

Technical Context

The TLV320AIC1107PWR integrates a third-order sigma-delta analog modulator for transmit path and a second-order digital modulator/filter for receive path, both synchronized to a 2.048 MHz MCLK input. Its PLL locks to this master clock to generate internal timing for digital filters and converters, ensuring precise 8 kHz sampling rate alignment with PCM frame sync (PCMSYNC).

Transmit and receive paths each employ digital filters meeting CCITT G.714 requirements, with independent mute controls (MICMUTE/EARMUTE), selectable companding mode via LINSEL, and psophometrically weighted noise performance of −74 dBm0p (linear) and −70 dBm0p (A-law) in transmit idle channel.

Key Specifications

Pinout & Package

TLV320AIC1107PWR uses a 20-terminal TSSOP (PW) package with 0.65 mm lead pitch, JEDEC MO-153 compliant, rated for −40°C to +85°C operation and RoHS-compliant NIPDAU finish.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PCM codec applications.

Compared with TLV320AIC1107PWR, TLV320AIC10IDBT sacrifices mode flexibility and gain tuning for smaller size and lower power, while CS42L52-CNZ offers enhanced resolution and features at the cost of increased complexity and non-compatible pinout - TLV320AIC1107PWR remains optimal for compact, single-channel, standards-compliant telephony endpoints.

Availability

TLV320AIC1107PWR is available at Aetrix Electronics and suitable for digital handsets, cordless phones, and digital PABX terminals requiring stable component supply across industrial temperature ranges and long production lifecycles.

Supply support for TLV320AIC1107PWR 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 audio codec innovation.

The TLV320AIC1107PWR belongs to TI's legacy voice-band codec product line, engineered specifically for cost-sensitive, low-power telephony endpoints requiring CCITT-compliant performance in minimal footprint.

FAQ

What is the operating temperature range for TLV320AIC1107PWR?

The TLV320AIC1107PWR is rated for operation from −40°C to +85°C ambient temperature, validated per its recommended operating conditions and absolute maximum ratings. This range supports deployment in consumer handsets, office telephones, and industrial voice terminals where thermal stability is required without active cooling. All electrical specifications in the SLAS360 datasheet apply within this interval.

Does TLV320AIC1107PWR support both linear and A-law PCM formats?

Yes, TLV320AIC1107PWR supports both 13-bit linear and 8-bit A-law companded PCM formats. The selection is controlled by the LINSEL input: logic low enables linear mode with programmable volume control via RXVOL[2:0] bits, while logic high selects A-law mode with fixed 0 dB volume. This dual-mode capability allows seamless integration into both legacy telephony infrastructure and modern digital voice systems.

How is microphone gain configured on TLV320AIC1107PWR?

Microphone gain on TLV320AIC1107PWR is externally programmable using resistors R2 and R3 connected to MICGAIN+ and MICGAIN− pins. With R2 = 34 kΩ and R3 = 510 kΩ (1% tolerance), the device achieves the recommended 23.5 dB gain. Gain is calculated as 20·log(R3/R2), allowing adjustment from 0 dB to ~30 dB. The configuration is detailed in Figure 3 of the SLAS360 datasheet.

What is the power consumption of TLV320AIC1107PWR in active and power-down modes?

In active operation at 3.3 V, TLV320AIC1107PWR draws 7 mA typical supply current. In power-down mode (MCLK absent), it consumes ≤30 µA maximum, achieving ultra-low quiescent power. Power-down is automatic upon MCLK loss and can be manually triggered via RESET assertion. The device exits power-down within 10 ms after MCLK resumes and RESET is deasserted.

Can TLV320AIC1107PWR drive 8-Ω earphones directly?

Yes, TLV320AIC1107PWR's differential EAROUT+ and EAROUT− outputs are specified to drive 8–32 Ω loads directly, delivering up to 200 mW into 8 Ω at 3-dBm0 output level. The amplifier includes click-and-pop suppression and maintains ≥70 dB crosstalk rejection. No external buffer or transformer is required, simplifying design for compact voice terminals.