Details

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BUY TEA1995T https://www.utsource.net/itm/p/12607008.html

Parameter	Symbol	Min	Typ	Max	Unit	Description
Supply Voltage	Vcc	4.5	5	5.5	V	Operating supply voltage range
Standby Current	Isb	-	10	-	渭A	Quiescent current in standby mode
Operating Current	Iop	-	30	-	mA	Typical operating current
Output Power	Pout	-	200	-	mW	Maximum output power into a 32惟 load
THD+N	THD+N	-	0.5	-	%	Total harmonic distortion plus noise at 1kHz, 1Vrms output
PSRR	PSRR	-	70	-	dB	Power supply rejection ratio at 217Hz
EMI Filter Bandwidth	BW	-	150	-	kHz	Bandwidth of the internal EMI filter
Shutdown Input Low	Vsd	0	0.8	1.2	V	Shutdown input voltage level (low)
Shutdown Input High	Vsh	2.4	2.8	3.6	V	Shutdown input voltage level (high)

Instructions for TEA1995T:

1. Power Supply Connection:

   • Connect the supply voltage (Vcc) between 4.5V and 5.5V to the Vcc pin.
   • Ensure proper decoupling capacitors are placed close to the Vcc pin to stabilize the power supply.

2. Speaker Connection:

   • Connect the speaker to the OUT+ and OUT- pins. The maximum output power is 200mW into a 32惟 load.

3. Shutdown Control:

   • Apply a voltage less than 0.8V to the SD pin to put the device into low-power shutdown mode.
   • Apply a voltage greater than 2.8V to the SD pin to activate normal operation.

4. EMI Considerations:

   • Place the TEA1995T as close as possible to the power source and ground plane to minimize EMI.
   • Use the internal EMI filter effectively by ensuring signal paths are short and direct.

5. Thermal Management:

   • Ensure adequate heat dissipation if operating near maximum power levels.
   • Place the device in an area with good airflow or use a heatsink if necessary.

6. Signal Input:

   • Connect audio signals to the IN+ and IN- pins. Ensure the input signal is within the specified voltage range to prevent distortion.

7. Testing and Verification:

   • Verify all connections before powering the device.
   • Monitor the output for correct performance and ensure no excessive distortion or noise is present.

(For reference only)