sta370bws STMicroelectronics, sta370bws Datasheet

sta370bws

Manufacturer Part Number

sta370bws

Description

2.1-channel 40-w High-efficiency Digital Audio System Sound Terminal??

Manufacturer

STMicroelectronics

Datasheet

1.STA370BWS.pdf (5 pages)

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Features

December 2009

For further information contact your local STMicroelectronics sales office.

Wide-range supply voltage, 7.0 V to 21.5 V

Three power output configurations:

– 2 channels of ternary PWM

– 2.1 channels of binary PWM (left, right,

Load-driving capabilities:

– 11 W into 6 Ω at 14 V, ternary

– 20 W into 4 Ω at 14 V, ternary

FFX with 100-dB SNR and dynamic range

Scalable FFX modulation index (up to 100%)

Selectable 32- to 192-kHz input sample rates

Digital gain/attenuation +48 dB to -80 dB with

step resolution:

– 0.125 dB/step from -60 dB to +48 dB

– 0.25 dB/step from -80 dB to -60 dB

Soft volume update with programmable ratio

Individual channel and master gain/attenuation

and soft/hard mute.

Two independent DRCs configurable as a

dual-band anti-clipper (B

independent limiters/compressors with

optional global DRC capability

EQ-DRC for DRC based on filtered signals

Dedicated LFE processing for bass boosting

with 0.125-dB/step resolution

Audio presets:

– 15 preset crossover filters

– 5 preset anti-clipping modes

– Preset night-time listening mode

C control with selectable device address

S input data interface

(2 x 20 W into 8 Ω at 18 V) + PWM output

(2 x 20 W into 8 Ω at 18 V) + ternary stereo

line-out

LFE) (2 x 9 W into 4 Ω + 1 x 20 W into 8 Ω

at 18 V)

2.1-channel 40-W high-efficiency digital audio system

DRC) or as

Doc ID 16884 Rev 1

Table 1.

STA370BWS

STA370BWSTR PowerSSO-36 EPD Tape and reel

Order code

Input and output channel mapping

Programmable zero-detect mute

Automatic invalid input-detect mute

Up to 8 user-programmable biquads/channel

Three coefficients banks for EQ presets storing

with fast recall via I

Extended filter dynamics +4/-4 for better sound

shaping and easier filter implementation

Bass/treble tones and de-emphasis control

Selectable high-pass filter for DC blocking

Advanced AM interference frequency

switching and noise suppression modes

F3X™ advanced PWM modulation scheme for

carrier suppression (headphone or line output)

Selectable high- or low-bandwidth

noise-shaping topologies

96-kHz internal processing sample rate with

quantization error noise shaping for very low

cut-off frequency filters

Full short-circuit protection at device power-up

Coefficient checksum with software reset

capabilities

PowerSSO-36

with exposed pad down (EPD)

Device summary

PowerSSO-36 EPD Tube

Sound Terminal™

Package

C interface

STA370BWS

Packing

www.st.com

Data brief

1/5

Related parts for sta370bws

sta370bws Summary of contents

Page 1

... Full short-circuit protection at device power-up Coefficient checksum with software reset capabilities Table 1. Device summary Order code STA370BWS PowerSSO-36 EPD Tube STA370BWSTR PowerSSO-36 EPD Tape and reel Doc ID 16884 Rev 1 STA370BWS Sound Terminal™ Data brief 2 C interface Package Packing 1/5 www ...

Page 2

... The IC can also be configured as 2.1 channels with supplied by the device plus a drive for an external FFX power amplifier, such as STA533WF or STA515W. The STA370BWS flexibility is shown by the load driving capability into 6 Ω and 20 W into 4 Ω with ternary modulation with a supply ...

Page 3

... OUT1B OUT1B 11 Vcc1 PLL_GND 12 GND1 PLL_DC 13 OUT1A OUT1A 14 GND_REG PWRDN C11 15 Vdd GND_DIG 100nF 16 CONFIG Vdd_DIG OUT3B 17 OUT3B TWARN/OUT4B OUT3A 18 OUT3A EAPD/OUT4A STA370BWS L1 22uH OUTxA C1 100nF R2 R1 6R2 22 R3 6R2 C4 330pF C6 100nF OUTxB L2 22uH L1 22uH OUTxA C1 220nF R2 R1 3R3 22 R3 3R3 ...

Page 4

... Revision history 3 Revision history Table 2. Document revision history Date 10-Dec-2009 4/5 Revision 1 Initial release. Doc ID 16884 Rev 1 STA370BWS Changes ...

Page 5

... STA370BWS Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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