SY24145BQHC (SY6045BQHC)

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
Input type	Digital
Channel(#)	2
Vs (min)(V)	4.5
Vs (max)(V)	28
Load (min)(Ω)	4
Po(W/Ch)	20
THD+N (%)(1kHz 1W)	0.041
SNR (dB)	101
Features	18 band EQ, 3 band and post DRC
Package	QFN6×6-40
Operating temperature range(°C)	-10 to 85

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.