ROHM BD3814FV Technical Note

BD3814FV is a one-chip sound processor that integrates functions such as volume, bass, and treble, necessary for AV receivers, home theater systems, and mini-audio systems.


ROHM BD3814FV Technical Note - cover page
Brand
ROHM
Category
Other Electronics
Document type
Application Note
Language
English
Pages
11
File format
PDF
File size
365 KB
Published
04 June, 2012
Updated
30 September, 2023
MD5 checksum
C2FC6BF7D3C8EE67B0726448CA5A78B2

About this manual

The BD3814FV is a single‑chip sound processor that integrates volume, bass, and treble functions for AV receivers, home‑theater systems, and mini‑audio devices. It uses a Bi‑CMOS process to achieve low distortion, low noise, and a wide dynamic range.

The document lists detailed electrical characteristics, timing requirements, control data formats, and example application circuits, along with ordering information and safety notes for designers.

What's inside

  • Description
  • Features
  • Applications
  • Absolute maximum ratings
  • Operating conditions
  • Electrical characteristics
  • Timing chart
  • Basic configuration of control data format
  • Application circuit
  • Reference data

Specifications

Dynamic range132 dB
Maximum output voltage4.3 Vrms (Vcc=7V, VEE=-7V, RL=10kΩ)
Master volume range0 to -95 dB per channel
Operating temperature range-20 °C to +75 °C
Storage temperature range-55 °C to +125 °C
Input impedance14–26 kΩ

Frequently asked questions

What is the maximum output voltage of the BD3814FV?

The maximum output voltage is 4.3 Vrms when VCC=7 V, VEE=‑7 V, and the load is 10 kΩ.

How should power be applied when turning the device on?

VEE and VCC should be powered on simultaneously, or VEE first followed by VCC; powering VCC first can cause excessive current.

What is the dynamic range of the BD3814FV?

The device provides a dynamic range of 132 dB.

What is the recommended operating temperature range?

The recommended operating temperature range is –20 °C to +75 °C.

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