TA2011S
2002-10-21
1
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA2011S
Mic Amp IC
The TA2011S is suitable for audio mic amplifier of portable
cassette tape recorder and karaoke.
Features
• Built in ALC DET Circuit.
• Built in NFB resistance. (Voltage gain is fixed):
G
v = 47dB (typ.)
f = 1 kHz, ALC OFF
• ALC Level: Vout (ALC) = 0.6 Vrms (typ.)
• ALC Range: RALC = 58dB (typ.)
• Operating Supply Vol tage Range:
V
CC (opr) = 4~14 V (Ta = 25°C)
• When the ALC circuit is off, pin 6 must be connected directly to ground.
Block Diagram
Weight: 0.7 g (typ.)
TA2011S
2002-10-21
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Maximum Ratings (Ta = 25°C)
Characteristics Symbol Rating Unit
DC supply voltage VCC 14 V
Power dissipation PD (Note) 900 mW
Operating temperature Topr −25~75 °C
Storage temperature Tstg −55~150 °C
Note: Derated above Ta = 25°C in the proportion of 7.2 mW/°C.
Electrical Characteristics
(unless otherwise specified, VCC = 7 V, f = 1 kHz, RL = 10 kΩ, ALC = OFF, Ta = 25°C)
Characteristics Symbol
Test
Circuit Test Condition Min Typ. Max Unit
Quiescent current ICCQ ― V
in = 0, ALC ON ― 4.4 8.0 mA
Voltage gain Gv ― ― 45.5 47 48.5 dB
Maximum output voltage Vom ― THD = 1% 1.0 1.3 ― Vrms
Total harmonic distortion THD ― Vout = 0.3 Vrms
BW = 400 Hz~30 kHz ― 0.2 0.5 %
ALC level Vout (ALC) ― V
in = 0.0178 Vrms (−35dBV) 0.5 0.6 0.7 Vrms
ALC range RALC ― 3dB up 40 58 ― dB
Attack time TATK ― Vin = 1.41 mVrms (−57.0dBV)
→ 0.014 Vrms (−37.0dBV) ― 0.05 ― s
Recovery time TRCV ― Vin = 0.014 Vrms (−37.0dBV)
→ 0.447 mVrms (−67.0dBV) ― 2 ― s
Ripple rejection ratio R.R. ― f = 100 Hz, Vripple = 0.1 Vrms −30 −46 ― dB
Input resistance RIN ― ― ― 20 ― kΩ
Equivalent input noise voltage Vni ― BW = 20 Hz~20 kHz
Gv = 47dB, Rg = 2.2 kΩ― 1.4 3.0 µV
Test Circuit
TA2011S
2002-10-21
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TA2011S
2002-10-21
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TA2011S
2002-10-21
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Package Dimensions
Weight: 0.7 g (typ.)
TA2011S
2002-10-21
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Handbook” etc..
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000707EB
A
RESTRICTIONS ON PRODUCT USE
