ALC3261 PDF – 4 Channel, AUDIO CODEC ( Datasheet )

Part Number: ALC3261

Function: FOUR CHANNEL I2S/PCM AUDIO CODEC

Package: 48-Pin QFN Type

Manufacturer: Realtek Semiconductor

Image and pinouts :

ALC3261 pdf pinout

Description

The ALC3261 is a low power, dual I2S interface, 4 channels DAC and 2 channel ADC Audio Codec with a optimized Voice DSP integrated. The primary I2S interface connects to system host chip and its secondary I2S interface can perform as input or output device connected to external processor, blue tooth device or wireless transceiver.

The device  is a highly integration of audio subsystem chip, including two stereo DACs with 100dB SNR, one stereo ADC with 94dB SNR, stereo Class-D speaker amplifiers provides 1.5W per channel into 8Ω or 2.5W per channel into 4Ω with a 5V supply with excellent PSRR and low EMI, a mono differential earpiece amplifier is also provided, providing output from any DAC or Analog-in. [ … ]

Features

1. Two Stereo Digital-to-Analog Converters with 100dBA SNR

2. One Stereo Analog-to-Digital Converter with 94dBA SNR

3. Stereo/Mono BTL (Bridge-Tied-Load) Class-D amplifier

4. Mono differential receiver amplifier

5. Two digital microphone interfaces supported

6. Asynchronous sample rate converter (ASRC) for each interface

7. Programmable register table with two sequencers

8. 7-bands parametric equalizer (EQ) for DAC path or ADC path

ALC3261 Datasheet

92HD81 PDF Datasheet – Single-chip Audio System – IDT

Part Number: 92HD81

Function: SINGLE CHIP PC AUDIO SYSTEM

Package: 48-pad QFN Type

Manufacturer: IDT

Images:

92HD81 datasheet pdf

Description

The 92HD81 single-chip audio system is a low power optimized, high fidelity, 4-channel audio codec with integrated speaker amplifier, capless headphone amplifier, and low drop out voltage regulator. The high integration of the 92HD81 enables the smallest PCB footprint with the lowest system BOM count and cost. The integrated high-pass filter allows for speaker protection.

Features

• 4 Channels (2 stereo DACs and 2 stereo ADCs) with 24-bit resolution

• Supports full-duplex stereo audio and simultaneous VoIP

• Provides a mono output

• 2W/channel stereo speaker amplifier @ 4 ohms and 4.75V

• Two headphone amplifiers

• One capless and one non-capless retaskable

• Internal core voltage regulator

• 1.5V to 1.8V or 3.3V digital power supply options

• +5 V analog power supply option

• Dedicated BTL high pass filter for speaker

[…]

 

92HD81 Datasheet


92HD81 pdf