Details

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BUY HT8698 https://www.utsource.net/itm/p/8416199.html

Parameter	Description	Value
Operating Voltage (VDD)	Supply voltage range	2.0V to 5.5V
Operating Current	Current consumption in active mode	2mA (Typical)
Standby Current	Current consumption in standby mode	1μA (Typical)
Audio Input	Differential input for audio signal	Max 0.6VRMS
Output Power	Maximum output power into 8Ω speaker	1W
SNR (Signal-to-Noise Ratio)	Ratio of signal power to noise power	90dB
THD+N (Total Harmonic Distortion + Noise)	Distortion level at 1kHz, 1W into 8Ω	0.5%
Package Type	Type of package	SOP-8
Operating Temperature	Temperature range for operation	-40°C to +85°C

Instructions for HT8698

1. Power Supply Connection:

   • Connect the VDD pin to a power supply within the specified operating voltage range (2.0V to 5.5V).
   • Ensure a stable power supply by using appropriate decoupling capacitors near the VDD pin.

2. Audio Input Configuration:

   • Connect the audio source to the differential input pins (AIN+ and AIN-). The maximum input signal should not exceed 0.6VRMS.

3. Speaker Connection:

   • Connect an 8Ω speaker to the output pins. The HT8698 can deliver up to 1W of power to the speaker.

4. Standby Mode:

   • To enter standby mode, set the STBY pin low. This reduces current consumption to approximately 1μA.
   • Return to active mode by setting the STBY pin high.

5. Thermal Considerations:

   • Ensure adequate heat dissipation if operating at higher powers or in high ambient temperatures.
   • Keep the device within the specified operating temperature range (-40°C to +85°C).

6. PCB Layout Recommendations:

   • Place the HT8698 close to the power supply and ground planes to minimize noise.
   • Use short and wide traces for power and ground connections to reduce resistance and inductance.

7. Protection Circuits:

   • Implement necessary protection circuits such as overcurrent protection and thermal shutdown to safeguard the device under abnormal conditions.

(For reference only)