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IC manufacturers ISSI

IC manufacturers (79)

ISSI IS31AP2111

2×20W STEREO DIGITAL (I2S) AUDIO AMPLIFIER WITH 20 BANDS EQ FUNCTIONS

Overview

Topology Buck Converter
Input voltage 10-26 V
IC revision A

Description

The IS31AP2111 is a digital I2S interface audio amplifier capable of driving a pair of 8Ω speakers at 20W when operating from a 24V supply. Due to itsClass-D output drive stage; it can operate without an external heat-sink or fan.

The IS31AP2111 integrates advanced audio processing capabilities, such as volume control, 20 bands speaker EQ, audio mixing, 3D surround andDynamic Range Control (DRC). These functions are fully programmable via a simple I2C control interface.

Robust protection circuits are provided to protect the IS31AP2111 from damage due to accidental or erroneous operating conditions. Because of its digital design, the IS31AP2111 is more tolerant to noise and PVT (Process, Voltage, and Temperature) variation than the analog Class-AB or Class-D audio amplifier counterpart. It has a robust anti-pop circuit for pop freeoperation during power ON. It integrates protection features for short circuit and over temperature.

The IS31AP2111 is available in a thermally enhanced eTSSOP-24 package.

Features

  • 16/18/20/24-bits input with I2S, Left-alignment and Right alignment data format
  • PSNR & DR (A-weighting)speaker: 99dB (PSNR), 104dB (DR) @24V
  • Multiple sampling frequencies (FS)
  • 32kHz / 44.1kHz / 48kHz and
  • 64kHz / 88.2kHz / 96kHz and
  • 128kHz / 176.4kHz / 192kHz
  • System clock = 64x, 128x, 192x, 256x, 384x,
  • 512x, 576x, 768x, 1024x Fs
  • 64x~1024x FS for 32kHz / 44.1kHz / 48kHz
  • 64x~512x FS for 64kHz / 88.2kHz / 96kHz
  • 64x~256x FS for 128kHz / 176.4kHz / 192kHz
  • Supply voltage 3.3V for digital circuit 10V~26V for speaker driver
  • speaker output power at 24V
  • 10W × 2CH into 8Ω @0.24% THD+N for stereo
  • 20W × 2CH into 8Ω @0.38% THD+N for stereo
  • Sound processing including:
  • 20 bands parametric speaker EQ
  • Volume control (+24dB ~ -103dB, 0.125dB/step),
  • Dynamic range control (DRC)
  • Dual band dynamic range control
  • Power clipping
  • 3D surround sound
  • Channel mixing
  • Noise gate with hysteresis window Bass/Treble tone control
  • DC-blocking high-pass filter
  • Anti-pop design
  • Short circuit and over-temperature protection
  • I2C control interface with selectable device address
  • Support hardware and software reset
  • Internal PLL
  • LV Under-voltage shutdown and HV Under-voltage detection
  • Power saving mode

Typical applications

  • Wireless audio
  • Boom-box, CD and DVD receiver, docking system
  • TV audio
  • Powered speaker

Products

Order Code Data­sheet Downloads Product series L
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
Size Version Packaging Samples
7447709220
IGS STP ALT EAG CAD LTS PSP SPE CAD WE-PD SMT Power Inductor 22 5.3 6.5 23 28 10 1210 Standard
74477420
STE ALT EAG CAD LTS PSP SPE IGS CAD WE-PD2 SMT Power Inductor 100 0.57 0.68 510 650 7.5 5848
450301014042
STE ALT EAG IGS CAD WS-SLTV THT Mini Slide Switch, Opposite Side Connection 10x2.5 mm 0.5 Bulk
Order Code Data­sheet
7447709220
74477420
450301014042
Samples
Order Code Data­sheet Downloads Product series L
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
Size Version Packaging Samples