Specifications
| Type | Description |
|---|---|
| Part Number | PCM1862 |
| Manufacturer | Texas Instruments |
| Product Type | ADC |
| Category | Signal Chain |
| Package Case | TSSOP-30, 7.80 mm x 4.40 mm body size |
| ADC Resolution / Function | Audio ADC |
| Channel Count | 2 channels |
| ADC Sample Rate | 8 kHz to 192 kHz |
| Signal-to-Noise Ratio | 103 dB |
| Single-Ended Full-Scale Input | 2.1 VRMS |
| Differential Full-Scale Input | 4.2 VRMS |
| Control Interface | I2C or SPI software control |
| Programmable Gain Amplifier Range | -12 dB to +32 dB |
| Digital Microphone Support | Up to 4 digital microphones |
| Power Supply Voltage | 3.3 V |
| Power Dissipation | < 85 mW |
| Audio PLL | Integrated high-performance audio PLL |
| Audio Interface Mode | Master or slave |
| Energy Detection | EnergySense audio content detector |
| PGA Clipping Control | Automatic PGA clipping suppression control |
| Input Configurations | Differential, pseudo-differential, and single-ended |
| Input Level Support | Small-mV microphone inputs to 2.1-VRMS line inputs |
| Voltage Reference | Integrated band-gap voltage reference |
| Package | TSSOP, 30 pins |
| Package Body Size | 7.80 mm x 4.40 mm |
| Datasheet Status | request_only |
Product Overview
The PCM1862 is a Texas Instruments 2-channel audio ADC for Signal_Chain designs requiring audio conversion, input flexibility, and software control. The device belongs to the PCM186x family and supports audio ADC operation with sample rates from 8 kHz to 192 kHz. For the PCM1860/62/64 condition, signal-to-noise ratio is specified as 103 dB.
Its analog front end supports differential, pseudo-differential, and single-ended configurations through the front-end mixer, multiplexer, and PGA. Single-ended full-scale input is 2.1 VRMS, while differential full-scale input is 4.2 VRMS. The input range supports small-mV microphone inputs through 2.1-VRMS line inputs without external resistor dividers. Software-controlled gain spans -12 dB to +32 dB, and automatic PGA clipping suppression control is included.
PCM1862 uses I2C or SPI software control and supports up to 4 digital microphones. The audio interface can operate as master or slave, with an integrated high-performance audio PLL. The device runs from a 3.3 V single supply, dissipates less than 85 mW under the stated condition, and includes an integrated band-gap voltage reference for high PSRR. It is supplied in a 30-pin TSSOP package with a 7.80 mm x 4.40 mm body size.
Key Features
- 2-channel audio ADC for PCM1862 device variant
- 8 kHz to 192 kHz ADC sample-rate range
- 103 dB signal-to-noise ratio under PCM1860/62/64 condition
- 2.1 VRMS single-ended full-scale input support
- 4.2 VRMS differential full-scale input support
- I2C or SPI software control interface
- Programmable gain range from -12 dB to +32 dB
- Supports up to 4 digital microphones
- 3.3 V single-supply operation
- EnergySense audio content detector for wakeup and sleep
- Automatic PGA clipping suppression control
- 30-pin TSSOP package, 7.80 mm x 4.40 mm body
Typical Applications
- Two-channel audio capture
- Microphone input front ends
- Line-level audio acquisition
- Digital microphone interface designs
- Audio systems with wakeup detection
- Master or slave audio-interface designs
- Single-supply audio conversion
- Differential audio input designs
Procurement Notes
When requesting a quote for PCM1862, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For analog and signal-chain sourcing, supply voltage, bandwidth, accuracy, noise level, package, temperature grade, input/output configuration and qualification requirements should be verified before approval.
FAQ
What type of converter is the PCM1862?
The PCM1862 is a Texas Instruments 2-channel audio ADC in the Signal_Chain category. It is part of the PCM186x family and supports audio conversion with sampling from 8 kHz to 192 kHz.
What input levels does the PCM1862 support?
The PCM1862 supports 2.1 VRMS full-scale single-ended input and 4.2 VRMS full-scale differential input. Its input level support spans small-mV microphone inputs to 2.1-VRMS line inputs without external resistor dividers.
Which control interfaces are available on PCM1862?
For the PCM1862 software-controlled device condition, control is available through I2C or SPI. The device also supports software-controlled gain from -12 dB to +32 dB and up to 4 digital microphones.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 28, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.