UTC22241

UTC22241 DUAL EQULIAZER AMPLIFIER WITH ALC DESCRIPTION LI NEAR I NTEGRATED CI RCUI T The UTC22241 is a monolithic integrated circuit consisting of dual equalizer amplifier with ALC ,and it is suitable for stereo radio cassette tape recorders. FEATURES *Dual equalizer amplifier with built-in ALC circuit *Low noise VNI=1.0µV(Typical) *High open loop voltage gain:Gv=80dB(typical) *Good ALC response balance between channels *Not necessary the input coupling capacitor *Not necessary diode or transistor for ALC *Built in power supply muting circuit *Minimum number of external parts required SIP-9 BLOCK DIAGRAM Channel 1 MUTE Channel 2 ALC 1 NF1 2 IN1 3 4 5 6 Vcc 7 Out2 8 IN2 9 NF2 OUT1 GND ALC ABSOLUTE MAXIMUM RATINGS(Ta=25°C ) Characteristic Supply Voltage Operating Temperature Storage Temperature Power dissipation Symbol Vcc Topr Tstg PD Value 16 -20 to +75 -20 to 125 550 Unit V °C °C W YOUW ANG ELECTRONI CS CO. LTD 1 Free Datasheet http://www.datasheet4u.com/ UTC22241 ELECTRICAL CHARACTERISTICS Characteristic Quiescent circuit current Open loop voltage gain Closed loop Voltage Gain Output Voltage Total Harmonic Distortion Input resistance ALC Range ALC Balance Input Noise voltage LI NEAR I NTEGRATED CI RCUI T Symbol ICCQ Gvo Gvc Vo THD Ri ∆VALC CBALC VNI (Ta=25°C,Vcc=7V,f=1kHz, unless otherwise specified) Test Condition Vi=0 Vo=0.3V Vo=0.3V THD=1% Vo=0.3V RG=3.9kΩ,THD=10% Vi=1mV RG=2.2kΩ BW(-3dB)=20Hz~20kHz Min 1.5 70 45 0.6 15 40 Typ. 3.5 80 48 1....