45-W, 2-MHz Analog Input 4-Channel Automotive Class-D Audio Amplifier
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TPA6404-Q1 Product Details
The TPA6404-Q1 device is afour-channel analog-inputClass-D audio amplifier that implements a 2.1 MHz PWM switching frequency that enables a costoptimized solution in a very small 4.5 cm2 PCB size, full operation downto 4.5 V for start/stop events, and exceptional sound quality with up to 100 kHz audiobandwidth.
The TPA6404-Q1 Class-D audio amplifier has an optimal design for use inentry level automotive head units that provide analog audio input signals as part of their systemdesign.
The Class-D topology dramatically improves efficiency over traditional linear amplifiersolutions.
The output switching frequency operates above the AM band,which eliminates the AM band interference and reduces the output filter size and cost.
The device is offered in a 56 pin HSSOP package with the exposed thermal pad up.
- Advanced Load Diagnostics
- AC Diagnostic for Tweeter Detection with Impedance and Phase Response
- Integrated sine wave Generator
- Easy to meet CISPR25-L5 EMC specification
- AEC-Q100 Qualified With the Following Results for Automotive Applications:
- Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
- Device HBM ESD Classification Level: 3A
- Device CDM ESD Classification Level: C4B
- Audio Inputs
- 4 Channel Differential Analog Input
- Four I2C-Controlled Gain Options
- High Input Impedance for Low Value AC-coupling Capacitor
- Audio Outputs
- Four-Channel Bridge-Tied Load (BTL), with Option of Parallel BTL (PBTL)
- Up to 2.1 MHz Output Switching Frequency
- 27 W, 10% THD into 4 Ω at 14.4 V
- 45 W, 10% THD into 2 Ω at 14.4 V
- 85 W, 10% THD into 1 Ω at 14.4 V PBTL
- Audio Performance into 4 Ω at 14.4 V, 1 kHz
- THD+N < 0.01%
- 42 µVRMS 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
- Runs without Input Clocks
- Output Current Limiting
- Output Short Protection
- 40 V Load Dump
- Fortuitous 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
- Clip Detection and Thermal Foldback
|SubFamily||Speaker amps||Control interface||I2C|
|Audio input type||Analog Input||Closed/open loop||Closed|
|Architecture||Class-D||Approx. price||3.54 | 1ku|
|Speaker Channels||4||Analog supply||18|
|Power stage supply||18||Power to parallel bridge tied load||83|
|Output power||45||Sampling Rate|
|SNR||Operating temperature range||-40 to 125|
|THD + N @ 1 kHz||0.01||Rating||Automotive|
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Estimated Delivery Time: Oct 24 - Oct 29 days (choose Expedited at checkout).
Shipping & Payment
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|REGISTERED AIR MAIL||
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|Terms of payment||Hand Fee||Payment Site|
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