Audio Interface

Item

 

Specification

 

 

Audio

Realtek ALC272 Azalia Codec and Amplifier G1454

Controller

 

 

 

 

 

• Features

HD Audio

 

• SNR > 85,High-performance DACs with 95dB SNR (A-Weighting), ADCs with

 

 

85dB SNR (A-Weighting)

 

Internal Digital Microphone

 

• Two speakers, max. 1W output for each

 

• Meets performance and function requirements for Microsoft WLP 3.10, and stricter

 

 

performance

 

• requirements for future WLP

 

• Two stereo DAC support 16/20/24-bit PCM for two independent playback (multiple

 

 

streaming)

 

• Two stereo ADC supports 16/20/24-bit PCM format for two independent recording

 

• All DACs support independent 44.1k/48k/96k/192kHz sample rate

 

• All ADCs support independent 44.1k/48k/96k/192kHz sample rate

 

• Two independent SPDIF outputs support 16/20/24-bit format and 44.1k/48k/88.2k/

 

 

96k/192kHz rate

 

• All analog jack ports except MONO, BEEP-IN and HP-OUT are stereo input and

 

 

output re-tasking

 

• Supports line level mono output

 

• Supports analog PCBEEP input, and features an integrated digital BEEP

 

 

generator

 

• Support two stereo digital microphone input for microphone array AEC/BF

 

 

application

 

• Each stereo digital microphone interface has its own clock output to support

 

 

independent sample rate

 

• Supports legacy analog mixer architecture

 

Built-in five headphone amplifiers on port-A and port-D, port-E, port-F and port-I.

 

• Headphone amplifier on port-I (HP-OUT) is designed to drive output without

 

 

external DC blocking

 

capacitors

 

• Software selectable 2.5V and 3.2V reference output for microphone bias

 

• Software selectable boost gain (+10/+20/+30dB) for analog microphone input

 

• Two jack detection pins; each supports detection of up to 4 jacks

 

• Supports two GPIO (General Purpose Input/Output) pins (pin sharing with digital

 

 

microphone

 

interface)

 

• Supports EAPD (External Amplifier Power Down) control for external amplifier

 

• Supports anti-pop mode when analog power AVDD is on and digital power is off

 

• Supports 1.5V~3.3V scalable I/O for HD Audio link

 

48-pin LQFP ‘Green’ package

 

 

 

Power and Keyboard Controller

Item

Specification

 

 

Controller

KB926

 

 

Total number of keypads

86/87/91

 

 

Windows logo key

Yes

 

 

Chapter 1

25

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Packard Bell LJ61 manual Audio Interface Specification, Power and Keyboard Controller Specification

LJ61 specifications

The Packard Bell LJ61 is a versatile laptop designed to meet the needs of everyday computing and multimedia entertainment. Known for its sleek design and solid performance, the LJ61 stands out in the competitive laptop market with a unique blend of features that cater to both casual users and more demanding tasks.

One of the primary characteristics of the Packard Bell LJ61 is its display. With a 15.6-inch screen, the laptop offers a vibrant resolution that enhances the visual experience. The LED backlight technology provides sharp colors and better contrast, making it ideal for watching movies or working on photo editing tasks. The larger screen size also allows for improved multitasking, providing enough space to comfortably view multiple applications.

Under the hood, the LJ61 is equipped with various processor options, including Intel and AMD configurations. Depending on the specific model, users can expect performance levels suitable for daily tasks such as browsing the web, streaming videos, or working on documents. The choice between different processors means that buyers can select the version that best meets their performance needs and budget.

Memory and storage options further enhance the LJ61’s appeal. Many configurations come with 4GB of RAM, which is adequate for most everyday applications, while some higher-end models may offer up to 8GB. Additionally, the laptop features a hard drive with storage options ranging from 500GB to 1TB, providing ample space for files, applications, and multimedia content.

The laptop is designed with connectivity in mind. It comes equipped with multiple USB ports, HDMI output, and an SD card reader, allowing users to connect a variety of peripherals and external devices. Wireless connectivity options such as Wi-Fi and Bluetooth are also integral features, enabling seamless access to the internet and connectivity with other devices.

Battery life is another consideration, and the LJ61 is built to keep users mobile. While battery performance can vary based on usage, the laptop aims to provide enough power to last through several hours of typical usage.

Overall, the Packard Bell LJ61 combines a stylish design with functional features that cater to a wide variety of users. Its balance of performance, display quality, and connectivity options make it a solid choice for students, professionals, and casual users alike. Whether for work or leisure, the LJ61 is designed to enhance the computing experience.