WM8778 Datasheet – 24-bit, 192kHz, Stereo Audio CODEC

Part Number : WM8778

Function : 24-bit, 192kHz Stereo CODEC

Package : 28-lead SSOP Type

Manufacturers : Wolfson Microelectronics plc

Image :

WM8778 datasheet

 

Description :

The WM8779 is a high performance, stereo audio CODEC. It is ideal for surround sound processing applications for home hi-fi, DVD-RW and other audio visual equipment.

Text :
24-bit, 192kHz Stereo CODEC WM8778

Description

The WM8778 is a high performance, stereo audio CODEC. It is ideal for surround sound processing applications for home hi-fi, DVD-RW and other audio visual equipment. The stereo 24-bit multi-bit sigma delta ADC has programmable gain with automatic level control. Digital audio output word lengths from 16-32 bits and sampling rates from 32kHz to 96kHz are supported. A stereo multi-bit sigma delta DAC is used with digital audio input word lengths from 16-32 bits and sampling rates from 32kHz to 192kHz. A multiplexor after the DAC allows the selection of either an external analogue input or DAC playback into the line outputs. The WM8778 supports fully independent sample rates for the ADC and DAC. The audio data interface supports I2S, left justified, right justified and DSP formats. The device is controlled in software via a 2 or 3 wire serial interface which provides access to all features including volume controls, mutes, and de-emphasis facilities. It can also be controlled in hardware which gives access to the most commonly used features. Control interface selection is done via the MODE pin (trilevel).

Features

• Audio Performance − 108dB SNR (‘A’ weighted @ 48kHz) DAC − 102dB SNR (‘A’ weighted @ 48kHz) ADC

• DAC Sampling Frequency: 32kHz – 192kHz

• ADC Sampling Frequency: 32kHz – 96kHz

• Stereo ADC input analogue gain adjust from +24dB to –21dB in 0.5dB steps

• ADC digital gain from -21.5dB to -103dB in 0.5dB steps

• Programmable Automatic Level Control (ALC) or Limiter on ADC input.

• Stereo DAC with analogue line outputs.

• 3-Wire SPI Compatible or 2-wire Serial Control Interface

• Hardware Control Mode

• Master or Slave Clocking Mode

• Analogue Bypass Path Feature

• 2.7V to 5.5V Analogue, 2.7V …

Other data sheets within the file :

WM8778SEDS-RV, WM8778SEDS-V

WM8778 Datasheet PDF Download

 

WM8778 pdf

 

NJM2035D Datasheet PDF – Stereo Modulator, JRC

Part Number : NJM2035D

Function : Stereo Modulator

Package : DIP 14, DMP 14 Type

Manufacturers : Japan Radio Corporation

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NJM2035D datasheet

 

Description :

The NJM2035D is an integrated circuit used to generate a stereo composite signal and obtain switching output and 19kHz pilot signal due to two input audio signal and 38kHz X-tal and a few external CR. The NJM2035 operates at 1.5V battery typically and even at 1.2V obtains separation more than 25dB.

Blockdiagram and Pinouts :

Features :

1. Low Operating Voltage

2. Low Operating Current

3. High separation

NJM2035D Datasheet PDF Download


NJM2035D pdf

Other data sheets within the file : NJM2035, NJM2035M, NJM2035M-T1, NJM2035M-T2

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