SY24145BQHC

High Performance, High Fidelity 20W Digital Audio-Power Amplifier

SY24145BQHC High Performance, High Fidelity 20W Digital Audio-Power Amplifier Datasheet

Parameters
Features
Description

Part Number	SY24145BQHC
Inputs	Digital
Ch(#)	2
Vs_min(V)	4.5
Vs_max(V)	28
Load_min(Ω)	4
Po(W/Ch)	20
THD+N(%) @ 1W	0.041
SNR(dB)	101
Features / Special Function	3 Band + Post Band DRC, 12 PEQs + 6 SPEQs, SDOUT
Package	QFN6×6-40

2CH Stereo(20W×2BTL)
2.0 BTL Mode or PBTL Mode
Support 4.5V to 28V PVDD Range
32bit Fixed-point DSP
32kHz to 96kHz Sample Rate Support (LJ/RJ/I2S)
I2C Address Selection Pin
Independent Channel Volume Controls with 48dB to Mute
SDATA Generator (I2S output)
Two DC Blocking Filters
18 PEQs or 12 PEQs + 6 SPEQs each channel for Speaker Protection and Speaker Compensation
3 Bands Dynamic Range Control plus a Post Dynamic Range Control
Four Types of Digital Filters with Different Roll-off
Loudness Control
Hard Clipper
Power Level Meter
3-wire I2S Digital Audio Interface without MCLK
Thermal, Over-Current, Short-Circuit Protection and BQ/DRC Checksum
Support Automatic Audio Sample Rate Detection

The SY24145B is a 2×20W, digital audio power amplifier for driving bridge-tied stereo speakers. One serial data input allows processing of up to two discrete audio channels and seamless integration to most digital audio processors. SY24145B is an I²S slave device receiving all clocks from external sources.

The SY24145B has a mixer and Bi-Quad filters which can be used to accomplish essential audio signal processing functions like dynamic range control, loudness control, and parametric equalization.