AKMAK4710 Low Power SCART Audio Driver Solution

/a>STB” title=”STB”>STB” title=”STB”>STB and Blu-ray Player. This article introduces the main features of AK4710, typical connection diagram and evaluation board AKD4710 function, block diagram, and circuit diagram and component layout.

The AK4710/11’audio block accepts either single-ended or differential input from an external audio DAC. It is very flexible, with integrated volume controls that range from -6dB to +24dB for gain control. The video block includes a clamp circuit, video filters, video switches and a 75-ohm video line driver, realizing simple and low cost system construction

The AK4710/11 supports fast and slow video blanking, compatible with the European SCART standard, making the AK4710/11 ideal for a full spectrum of European digital AV products. The AK4710 is housed in a 32-pin QFN package, and the AK4711 is housed in a 36-pin QFN package.

AK4710 main features:

Audio section

􀂆 THD+N: −92dB (@2Vrms)

􀂆 Dynamic Range: 96dB (@2Vrms, A-weighted)

􀂆 Full Differential or Single-ended input for Decoder DAC

􀂆 Stereo Output for TV SCART and CINCH (2Vrms)

􀂆 Ground-Referenced Output Eliminates

DC-Blocking Capacitor and Mute Circuit

Video section

􀂆 Integrated LPF: –[email protected]

􀂆 6dB Gain for Outputs

􀂆 5ch 75ohm driver

4ch for SCART: CVBS/Y, R/C, G, B

1ch for CINCH: CVBS

􀂆 Y/Pb/Pr Option (to 6MHz)

Low-power Standby

SCART pin#16(Fast Blanking), pin#8(Slow Blanking) Output Control

Power supply

􀂆 3.3V+/−5% and 12V+/−5%

􀂆 Low Power Dissipation / Low Power Standby Mode

Package

􀂆 32pin QFN (0.4mm pitch)
AKMAK4710 Low Power SCART Audio Driver Solution
Figure 1. Block diagram of the audio part of the AK4710
AKMAK4710 Low Power SCART Audio Driver Solution
Figure 2. Block diagram of the video part of the AK4710
AKMAK4710 Low Power SCART Audio Driver Solution
Figure 3. AK4710 Video Blanking Block Diagram
AKMAK4710 Low Power SCART Audio Driver Solution
Figure 4. Typical connection diagram of AK4710

Evaluation Board AKD4710

AKD4710 is an evaluation board for quickly evaluating the AK4710, Single SCART Driver.Evaluation requires audio/video analog analyzers/generators and a power supply.

Evaluation Board AKD4710 Features:

• RCA connectors for analog audio output

• XLR connectors for analog audio input

• RCA connectors for SD video input/output

• USB connector for serial control interface
AKMAK4710 Low Power SCART Audio Driver Solution
Figure 5. Block Diagram of Evaluation Board AKD4710
AKMAK4710 Low Power SCART Audio Driver Solution
Figure 5. Evaluation Board AKD4710 Circuit Diagram (1)
AKMAK4710 Low Power SCART Audio Driver Solution
Figure 6. Evaluation Board AKD4710 Circuit Diagram (2)

AKMAK4710 Low Power SCART Audio Driver Solution
Figure 7. Evaluation Board AKD4710 Circuit Diagram (3)
AKMAK4710 Low Power SCART Audio Driver Solution
Figure 8. Evaluation Board AKD4710 Circuit Diagram (4)

AKMAK4710 Low Power SCART Audio Driver Solution
Figure 9. Evaluation Board AKD4710 Component Layout
For details, see:
http://www.asahi-kasei.co.jp/akm/en/product/ak4710/ak4710_p03e.pdf
and
http://www.asahi-kasei.co.jp/akm/en/product/ak4710/akd4710-a0-02e.pdf

The Links:   G150XNEL01 CM300DY-12H