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NJW1124

Voice Switched Speakerphone circuit

Japan Radio Corporation  

NJW1124

! TYPICAL CHARACTERISTICS

Receive AMP THD+N vs Input Voltage

(V+=3.3V, RL=5.1kΩ , Gain=0dB , Rf=3kΩ, Ri=3kΩ, BW:400Hz-30kHz)

10

1

0.1

0.01

0.01

85℃

-40℃

25℃

0.1

1

10

Input Voltage [Vrms]

Mic AMP THD+N vs Input Voltage

(V+=3.3V,MUT=0.3V, RL=5.1kΩ , Gain=40dB , Rf=300kΩ, Ri=3kΩ, BW:400Hz-30kHz)

10

Receive AMP THD+N vs Input Voltage

(V+=4.0V, RL=5.1kΩ , Gain=0dB , Rf=3kΩ, Ri=3kΩ, BW:400Hz-30kHz)

10

1

0.1

-40℃

0.01

85℃

25℃

0.001

0.01

0.1

1

10

Input Voltage [Vrms]

Mic AMP THD+N vs Input Voltage

(V+=4.0V,MUT=0.3V, RL=5.1kΩ , Gain=40dB , Rf=300kΩ, Ri=3kΩ, BW:400Hz-30kHz)

10

85℃

1

(MUT=0.3V)

85℃

(MUT=0V)

25℃

-40℃

0.1

0.0001

0.001

0.01

0.1

Input Voltage [Vrms]

Mic AMP THD+N vs Input Voltage

(V+=3.3V,MUT=0.3V, RL=5.1kΩ , Gain=40dB , Rf=300kΩ, Ri=3kΩ, BW:400Hz-30kHz)

10

1

0.1

0.01

0.01

85℃

85℃ (MUT=0.3V)

(MUT=0V)

25℃

-40℃

0.1

1

10

Input Voltage [Vrms]

85℃

1

(MUT=0.3V)

85℃

(MUT=0V)

25℃

-40℃

0.1

0.0001

0.001

0.01

0.1

Input Voltage [Vrms]

Mic AMP THD+N vs Input Voltage

(V+=4.0V,MUT=0.3V, RL=5.1kΩ , Gain=40dB , Rf=300kΩ, Ri=3kΩ, BW:400Hz-30kHz)

10

1

85℃

0.1

(MUT=0.3V)

85℃

(MUT=0V)

-40℃

25℃

0.01

0.001

0.01

0.1

1

10

Input Voltage [Vrms]

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