PDF《NAU82028》

83 dBV Power Supply Rejection Ratio PSRR DC PSRR

100 dB AC PSRR VRIPPLE = 0.2Vpp @217Hz

76 dB VRIPPLE = 0.2Vpp@1kHz

63 dB VRIPPLE = 0.2Vpp@10kHz

52 dB Noise Performance With A-weighted

26 ?VRMS Without A-weighted

36 ?VRMS NAU82028 Datasheet Rev0.2 Page

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2013 Absolute Maximum Ratings Parameter Symbol Condition Min Max Units DC Power Supply VDD VDD-VSS -0.30 +6.00 V Analog Input Voltage AVIN VIN-VSS -0.3 VDD+0.3 V Digital Input Voltage DVIN DVIN-VSS -0.3 VDD+0.3 V Minimum Load Resistance RL 3.2 ? Continuous Power Dissipation PO WCSP, T=25°C

530 mW Continuous Power Dissipation PO WCSP, T=85°C

275 mW Storage temperature range Tst -55 +150 °C CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely influence product reliability and result in failures not covered by warranty. Recommended Operating Conditions Parameter Symbol Condition Min Typical Max Units DC Power Supply VDD VDD-VSS 2.50 5.00 5.50 V High-level input voltage(EN pin) VIH 1.30 V Low-level input voltage(EN pin) VIL 0.35 V Operating Temperature TA -40 +25 +85 °C Digital Serial Interface Timing NAU82028 Datasheet Rev0.2 Page

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2013 Two wire control mode timing Symbol Description Min Typ Max Unit TSTAH SDA falling edge to SCL falling edge hold timing in START / Repeat START condition

600 - - ns TSTAS SCL rising edge to SDA falling edge setup timing in Repeat START condition

600 - - ns TSTOS SCL rising edge to SDA rising edge setup timing in STOP condition

600 - - ns TSCLH SCL High Pulse Width

600 - - ns TSCLL SCL Low Pulse Width 1,300 - - ns TRISE Rise Time for all 2-wire Mode Signals - -

300 ns TFALL Fall Time for all 2-wire Mode Signals - -

300 ns TSDAS SDA to SCL Rising Edge DATA Setup Time

100 - - ns TSDAH SCL falling Edge to SDA DATA Hold Time

0 -

600 ns Digital Serial Interface Electrical Characteristics Condition Min Typ. Max. Unit Test Conditions Input Leakage Current SCL, SDA -1 - +1 ?A VDD = 5.5V Input High Voltage VIH 0.7 VDD 5.5 V Input low Voltage VIL VSS 0.3 VDD V VOH (SCL, SDA) 0.9 VDD V VOL (SCL, SDA) 0.2 VDD V IOL =

1 mA SDA, SCL;

pull up resistor value 50k Ohm The following setup is used to measure the above parameters NAU82028 Datasheet Rev0.2 Page

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2013 The low pass filter is implemented by using R= 1k? and C= 4.7nF.

4 Typical Operating Characteristics Conditions: EN = VDD = 3.6V, VSS = 0V, Av = 12dB, Bandwidth = 20Hz to

22 kHz, TA =

25 °C, unless otherwise noted 0.001 0.01 0.1

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20000 THD+N [%] Frequency [Hz] THD+N vs Frequency Pout 50mW Pout 250mW Pout 1W 0.001 0.01 0.1

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200 2000

20000 THD+N [%] Frequency [Hz] THD+N vs Frequency Pout 25mW Pout 125mW Pout 500mW 0.001 0.01 0.1

1 20

200 2000

20000 THD+N [%] Frequency [Hz] THD+N vs Frequency Pout 15mW Pout 75mW Pout 200mW 0.001 0.01 0.1

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20000 THD+N [%] Frequency [Hz] THD+N vs Frequency Pout 100mW Pout 500mW Pout 2W NAU82028 Datasheet Rev0.2 Page

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2013 0.001 0.01 0.1

1 20

200 2000

20000 THD+N [%] Frequency [Hz] THD+N vs Frequency Pout 50mW Pout 250mW Pout 1W 0.001 0.01 0.1

1 20

200 2000

20000 THD+N [%] Frequency [Hz] THD+N vs Frequency Pout 30mW Pout 150mW Pout 400mW 0.001 0.01 0.1

1 10

100 0.01 0.1

1 10 THD+N [%] Output Power [W] THD+N vs Output Power VDD 2.5V VDD 3.6V VDD 5V 0.001 0.01 0.1

1 10

100 0.01 0.1

1 10 THD+N [%] Output Power [W] THD+N vs Output Power VDD 2.5V VDD 3.6V VDD 5V ZL=4?+33?H NAU82028 Datasheet Rev0.2 Page