Details

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BUY PCM1748KE/2K https://www.utsource.net/itm/p/11698716.html
IC DAC/AUDIO 24BIT 100K 16SSOP

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	VDD	-	2.7	3.3	5.5	V
Analog Output Voltage	VOUT	No load	-	2.0	-	Vpp
Signal-to-Noise Ratio (A)	SNR	1kHz, A-weighted	-	116	-	dB
Total Harmonic Distortion	THD+N	1kHz, 0dBFS, 10kΩ load	-	0.0009	-	%
Dynamic Range	DR	1kHz, A-weighted	-	116	-	dB
Power Consumption	IDD	Active, 3.3V	-	120	-	mW
Standby Current	ISB	3.3V	-	10	-	μA
Operating Temperature	Toper	-	-40	-	85	°C
Storage Temperature	Tstg	-	-40	-	85	°C

Instructions for Using the PCM1748KE/2K

1. Power Supply:

   • Ensure the supply voltage (VDD) is within the range of 2.7V to 5.5V.
   • Use a stable power source to avoid noise and instability.

2. Analog Output:

   • The analog output voltage (VOUT) is typically 2.0Vpp with no load.
   • Connect a suitable load resistor (e.g., 10kΩ) to the output to ensure proper operation.

3. Signal-to-Noise Ratio (SNR):

   • The SNR is measured at 1kHz with A-weighting and should be around 116dB.
   • This value indicates the quality of the audio signal and the level of background noise.

4. Total Harmonic Distortion (THD+N):

   • The THD+N is measured at 1kHz with a 0dBFS input and a 10kΩ load.
   • The typical value is 0.0009%, indicating very low distortion and high fidelity.

5. Dynamic Range:

   • The dynamic range is also measured at 1kHz with A-weighting and should be around 116dB.
   • This parameter reflects the range between the smallest and largest signals the device can handle without distortion.

6. Power Consumption:

   • In active mode, the power consumption is typically 120mW at 3.3V.
   • Ensure adequate heat dissipation if operating at higher temperatures or under heavy loads.

7. Standby Mode:

   • To reduce power consumption, use the standby mode where the current draw is typically 10μA at 3.3V.
   • Use the appropriate control signals to switch between active and standby modes.

8. Operating Temperature:

   • The device operates reliably within the temperature range of -40°C to 85°C.
   • Avoid exposing the device to temperatures outside this range to prevent damage.

9. Storage Temperature:

   • Store the device in a temperature-controlled environment between -40°C and 85°C to maintain its performance and longevity.

10. Handling Precautions:

    • Handle the device with care to avoid static discharge, which can damage sensitive components.
    • Follow proper soldering techniques to ensure reliable connections and avoid thermal stress.

By following these parameters and instructions, you can ensure optimal performance and reliability of the PCM1748KE/2K DAC.

(For reference only)