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Specifications
SKU: 12603642
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage | VCC | - | 4 | - | 36 | V |
| Quiescent Current | IQ | VCC=15V, no load | - | 2.8 | - | mA |
| Output Current (Max) | IO | Continuous, per channel | - | - | 300 | mA |
| Output Power | POM | VCC=15V, 8Ω, THD=10% | - | 2.5 | - | W |
| Total Harmonic Distortion | THD | VCC=15V, 8Ω, 1kHz | - | 0.02 | - | % |
| Signal-to-Noise Ratio | SNR | VCC=15V, A-weighted | - | 95 | - | dB |
| Input Sensitivity | VI | VCC=15V, 8Ω, 1kHz, 1W output | - | 240 | - | mV |
| Input Impedance | ZI | - | - | 10 | - | kΩ |
| PSRR (Power Supply Rejection Ratio) | PSRR | f=1kHz | - | 75 | - | dB |
| Operating Temperature | TA | - | -40 | - | 85 | °C |
Instructions for Use:
Supply Voltage:
- The NJM2070D can operate with a supply voltage ranging from 4V to 36V. Ensure the supply voltage is within this range to avoid damage to the device.
Quiescent Current:
- The quiescent current is typically 2.8mA at a supply voltage of 15V with no load. This value helps in power consumption calculations.
Output Current:
- The maximum continuous output current per channel is 300mA. Do not exceed this limit to prevent overheating or damage.
Output Power:
- The maximum output power is 2.5W at a supply voltage of 15V and an 8Ω load with a total harmonic distortion (THD) of 10%.
Total Harmonic Distortion (THD):
- At a supply voltage of 15V, 8Ω load, and 1kHz frequency, the THD is typically 0.02%. This indicates the quality of the audio signal.
Signal-to-Noise Ratio (SNR):
- The SNR is typically 95dB at a supply voltage of 15V and A-weighted conditions. This measures the clarity of the signal relative to background noise.
Input Sensitivity:
- For a 1W output at 15V supply voltage, 8Ω load, and 1kHz frequency, the input sensitivity is typically 240mV. This helps in setting up the input levels correctly.
Input Impedance:
- The input impedance is typically 10kΩ. This is important for matching with the source impedance to ensure optimal signal transfer.
PSRR (Power Supply Rejection Ratio):
- The PSRR is typically 75dB at 1kHz. This indicates how well the device can reject variations in the power supply voltage.
Operating Temperature:
- The operating temperature range is from -40°C to 85°C. Ensure the device is used within this range to maintain performance and reliability.
Additional Notes:
- Thermal Considerations: The NJM2070D may require a heatsink if it is operated at high output power levels or in high ambient temperatures.
- Protection Circuits: The device includes internal protection circuits such as short-circuit protection and thermal shutdown to prevent damage under abnormal conditions.
- Layout Recommendations: Proper PCB layout is crucial for optimal performance. Keep power and ground traces wide and short to minimize inductance and resistance. Use bypass capacitors close to the power pins to filter out high-frequency noise.
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