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See Technical Specifications

TAS6422EQDKQRQ1

Amplifier IC 2-Channel (Stereo) Class D 56-HSSOP

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

TAS6422EQDKQRQ1
Datasheet:

TAS6422EQDKQRQ1 Datasheet (PDF)
Type:

Class D
Output Type:

2-Channel (Stereo)
Max Output Power x Channels @ Load:

75W x 2 @ 4Ohm
Voltage - Supply:

4.5V ~ 26.4V

Email: [email protected]

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Tel: +852 95804164

TAS6422EQDKQRQ1 General Description

The TAS6422E-Q1 device is a two-channel digital-input Class-D audio amplifier that implements a 2.1 MHz PWM switching frequency enabling a cost-optimized solution in a very small PCB size, full operation down to 4.5 V for start/stop events, and exceptional sound quality with up to 40 kHz audio bandwidth.

The devices adds EMI management features including spread-spectrum to assist in system level EMI challenges.

The output switching frequency can be set either above the AM band, which eliminates AM-band interferences and reduces output filtering and cost, or below the AM band to optimize efficiency.

The device has a built-in load diagnostic function for detecting and diagnosing misconnected outputs as well as detection of AC-coupled tweeters to help to reduce test time during the manufacturing process.

The TAS6422E-Q1 Class-D audio amplifier is designed for use in automotive head units and external amplifier modules. For pin compatible one, two and four-channel devices see the the Device Options table.

Key Features

AEC-Q100 Qualified for automotive applications
- Temperature grade 1: –40°C to +125°C T_A
Advanced load diagnostics
- DC Diagnostics run without input clocks
- AC Diagnostic for tweeter detection with impedance and phase response
Easily meets CISPR25-L5 EMC specifications
Audio inputs
- 2 Channel I²S or 4/8-channel TDM input
- Input sample rates: 44.1 kHz, 48 kHz, 96 kHz
- Input formats: 16-bit to 32-bit I²S, and TDM
Audio Outputs
- Two-channel bridge-tied load (BTL)
- Single-channel parallel BTL (PBTL)
- Up to 2.1 MHz output switching frequency
- 45 W, 10% THD+N Into 2 Ω at 14.4 V BTL
- 75 W, 10% THD+N Into 4 Ω at 25 V BTL
- 150W, 10% THD+N Into 2 Ω at 25V PBTL
Audio performance into 4 Ω at 14.4 V BTL
- THD+N < 0.02% at 1 W
- 42 µV_RMS output noise
- –90 dB crosstalk
Load diagnostics
- Output open and shorted load
- Output-to-battery or ground shorts
- Line output detection up to 6 kΩ
- Host-independent operation
Protection
- Output current limiting and short protection
- 40 V Load dump
- Open ground and power tolerant
- DC offset
- Over-temperature
- Undervoltage and overvoltage
General Operation
- 4.5 V to 18 V supply voltage
- I²C Control with 4 address options
- Latched & Non-Latched Clip Detect
- Enhanced EMI Management

Specifications

Category	Integrated Circuits (ICs)LinearAmplifiersAudio Amplifiers	Series	-
Type	Class D	Output Type	2-Channel (Stereo)
Max Output Power x Channels @ Load	75W x 2 @ 4Ohm	Voltage - Supply	4.5V ~ 26.4V
Features	-	Mounting Type	Surface Mount
Operating Temperature	-40°C ~ 125°C (TA)	Base Product Number	TAS6422
Audio input type	Digital Input	Architecture	Class-D
Speaker channels (max)	Stereo	Rating	Automotive
Power stage supply (max) (V)	26.4	Power stage supply (min) (V)	4.5
Load (min) (Ω)	2	Output power (W)	75
THD + N at 1 kHz (%)	0.02	Iq (typ) (mA)	84
Control interface	I2C	Closed/open loop	Closed
Analog supply (min) (V)	4.5	Analog supply voltage (max) (V)	26.4
Sampling rate (max) (kHz)	96	PSRR (dB)	75
Operating temperature range (°C)	-40 to 125	Pin Count	56
Last Modified Date	Mar 7, 2023 5:25 PM UTC