MIKROE-2454

MIKROE-2454 Datasheet

From MikroElektonika Documentation

Part	Datasheet
MIKROE-2454	MIKROE-2454 (pdf)

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StereoAmp click From MikroElektonika Documentation StereoAmp click functions as a stereo amplifier and features two LM48100Q-Q1 Boomer ICs by Texas Instruments. It is ideal for battery powered devices, automotive audio devices, hands-free kits, computers, MP3 players, etc The LM48100Q-Q1 is a single supply, mono, 1.3W audio power amplifier with output fault detection and I2C volume control. StereoAmp click Contents 1 Features and usage notes Input and Output Volume control Bridge-tied load for more voltage Shutdown mode Fault detection 2 Pinout diagram 3 Programming 4 Resources Features and usage notes StereoAmp click key features: Input Voltage Range V to VDD = V Output Power at VDD W at VDD = 5 V, RL = 8 Ω, THD+N 1% Low power shut down mode uA I2C Volume and Mode Control Input Mixer and Multiplexer Output fault detection Short circuit and thermal protection Individual 32-step volume control I2C interface 3.5mm input audio jack Screw terminals for speaker output Runs on either 3.3V or 5V power supply StereoAmp click LM48100Q-Q1 datasheet Interface I2C Power supply 3.3V or 5V Product StereoAmp click page Schematic StereoAmp click schematic Input and Output The click has a 3.5mm input jack next to the two pairs of screw terminals. The screw terminals are outputs intended for connecting passive speakers. Volume control Each LM48100Q-Q1 is used for one channel, left or right. Both input paths have their own independent, 32-step volume control. The mixer, volume control and device mode select are controlled through an I2C compatible interface. Bridge-tied load for more voltage BTL or a bridge-tied load is an output configuration where the speakers are connected bridged between two audio amplifier outputs. In a single-ended configuration one side of the load is connected to the ground. Here both channels are connected, but one has an inverted signal. Compared to a single-ended configuration BTL has two times more voltage swing across the load speakers . The doubled voltage swing means four times more power to the speakers. This is ideal for applications and devices where due to battery size the supply voltage is lower. Shutdown mode The IC has an I2C selectable low power shutdown mode that disables the device, reducing current consumption to 0.01uA. Fault detection The output fault detection system can sense load conditions and protect the device during short circuit events and detect open circuit conditions. The LM48100Q-Q1 output fault diagnostics are controlled through the I2C interface. Pinout diagram This table shows how the pinout on StereoAmp click corresponds to the pinout on the mikroBUS socket. Notes mikroBUStm Notes Fault detection left channel FAULT_L 1 AN PWM 16 NC 2 RST INT 15 FAULT_R Fault detection right channel TX 14 NC 4 SCK RX 13 NC 5 MISO SCL 12 SCL I2C clock

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StereoAmp click

From MikroElektonika Documentation

StereoAmp click functions as a stereo amplifier and features two LM48100Q-Q1 Boomer ICs by Texas Instruments. It is ideal for battery powered devices, automotive audio devices, hands-free kits, computers, MP3 players, etc

The LM48100Q-Q1 is a single supply, mono, 1.3W audio power amplifier with output fault detection and I2C volume control.

StereoAmp click

Contents
1 Features and usage notes Input and Output Volume control Bridge-tied load for more voltage Shutdown mode Fault detection
2 Pinout diagram 3 Programming 4 Resources

Features and usage notes

StereoAmp click key features:

Input Voltage Range V to VDD = V Output Power at VDD W at VDD = 5 V, RL = 8 Ω, THD+N 1% Low power shut down mode uA I2C Volume and Mode Control Input Mixer and Multiplexer Output fault detection Short circuit and thermal protection Individual 32-step volume control I2C interface 3.5mm input audio jack Screw terminals for speaker output Runs on either 3.3V or 5V power supply

StereoAmp click

LM48100Q-Q1 datasheet

Interface I2C

Power supply
3.3V or 5V

Product StereoAmp click page

Schematic StereoAmp click schematic

Input and Output

The click has a 3.5mm input jack next to the two pairs of screw terminals. The screw terminals are outputs intended for connecting passive speakers.

Volume control

Each LM48100Q-Q1 is used for one channel, left or right. Both input paths have their own independent, 32-step volume control. The mixer, volume control and device mode select are controlled through an I2C compatible interface.

Bridge-tied load for more voltage

BTL or a bridge-tied load is an output configuration where the speakers are connected bridged between two audio amplifier outputs. In a single-ended configuration one side of the load is connected to the ground. Here both channels are connected, but one has an inverted signal. Compared to a single-ended configuration BTL has two times more voltage swing across the load speakers .

The doubled voltage swing means four times more power to the speakers. This is ideal for applications and devices where due to battery size the supply voltage is lower.

Shutdown mode

The IC has an I2C selectable low power shutdown mode that disables the device, reducing current consumption to 0.01uA.

Fault detection

The output fault detection system can sense load conditions and protect the device during short circuit events and detect open circuit conditions. The LM48100Q-Q1 output fault diagnostics are controlled through the I2C interface.

Pinout diagram

This table shows how the pinout on StereoAmp click corresponds to the pinout on the mikroBUS socket.

Notes
mikroBUStm

Notes

Fault detection left channel FAULT_L 1 AN

PWM 16 NC
2 RST INT 15 FAULT_R Fault detection right channel

TX 14 NC
4 SCK RX 13 NC
5 MISO SCL 12 SCL

I2C clock

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived MIKROE-2454 Datasheet file may be downloaded here without warranties.

Datasheet ID: MIKROE-2454 649491