UTC LAG668 LINEAR INTEGRATED CIRCUIT RADIO AND CASSETTE RECORDER CIRCUIT DESCRIPTION The UTC LAG668 is a monolithic integrated circuit, designed for portable radio cassette. FEATURES *1-Chip IC for headphone stereo SOP-28 BLOCK DIAGRAM 27 26 25 24 23 22 21 19 20 18 14 17 16 15 13 Power Amp Pre Amp Attenuator Motor Control 1/2 Vcc Bias Control 1/2 Vcc V/I Power Amp Pre Amp 1 2 UTC 3 28 Attenuator 4 5 6 Power Amp 7 8 9 11 10 12 UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R110-012,A UTC LAG668 LINEAR INTEGRATED CIRCUIT PIN CONFIGURATION VBPRE 1 28 GNDPRE 1IN+ 2 27 2IN+ 1IN- 3 26 2IN- INFPRF 4 25 2NFPRE IOUTPRE 5 24 2OUTPRE ATT1 6 23 ATT2 CONVOL 7 22 PREOFF VREF 8 21 VCCPRE 1OUTP 9 20 VCC GNDP 10 19 2OUTP VBP 11 18 MOOFF GNDMD 12 17 VCCMO VCON 13 16 CONT MOON 14 15 CONS PIN NO. SYMBOL DESCRIPTION PIN NO. SYMBOL DESCRIPTION 1 VBPRE Pre Amp Bias Voltage 15 CONS Speed Control 2 1 IN+ Channel 1 “ +” Input 16 CONT Torqul Control 3 1 IN - Channel 1 “ -” Input 17 VCCMO Motor Power Control 4 1 NFPRE Feedback 5 1 OUTPRE Pre Amp Output 6 ATT 1 Attenuator 7 CONVOL Volume Control 8 VREF Reference Voltage 9 1 OUTP 10 GNDP 11 VBP 12 GNDMD Motor GND 26 2 IN- Channel 2 “ -” Input 13 VCON Motor Control Voltage 27 2 IN+ Channel 2 “ +” Input 14 MOON Motor Forced Start 28 GNDPRE Pre GND UTC 1 18 MOOFF 19 2 OUTP 20 VCC Supply Voltage 21 VCCPRE Supply Voltage 22 PREOFF 23 ATT 2 Attenuator Power GND 24 2 OUTPRE Pre Amp Output Power Amp Bias Voltage 25 2 NFPRE Feedback 1 1 Power Amp Output 1 Motor Forced Stop Power Amp Output 2 Pre Amp Off UNISONIC TECHNOLOGIES CO., LTD. 2 2 2 2 QW-R110-012,A UTC LAG668 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS(Ta=25°C) PARAMETER Supply Voltage Power Dissipation Operating Voltage Operating Temperature Storage Temperature SYMBOL VALUE UNIT Vcc Pd Vop Topr Tstg -0.3~+7.5 750 2~5 -20~+65 -40~+125 V mW V °C °C AMPLIFIER ELECTRICAL CHARACTERISTICS(Ta=25°C) PARAMETER Supply Current PRE-AMPLIFIER Open Loop Gain Close Loop Gain Maximum Output Voltage Total Harmonic Distortion Output Noise Voltage Input Impedance Cross Talk between CH Output Voltage when Pre-Off Output Impedance when Pre-Off Input Impedance when Pre-Off Attenuator Maximum Input Voltage Maximum Attenuation Attenuation Error Input Impedance Control Ternimal Input Impedance Power Amplifier Voltage Gain Channel Voltage Difference Maximum Output Power I Maximum Output Power II Total Harmonic Distortion Cross Talk between CH Output Noise Voltage Ripple Rejection Pre + Pulse Boost + Power Noise SYMBOL TEST CONDITIONS Icc Vin=0V, IM=0mA Gvo Gvc Vom THD Von Vo=-10dBm, RL=∞ Vo=-10dBm THD=10% Vout=100mVrms Vin=0, Rg=2.2k, BPF(30~20k) Vout=-10dBm Rg=2.2k, Vout=-10dBm Vin=100mVrms Zin CT Vooff Rooff Rloff Vimax Vamax Vaerr Zia Zicot 40 0.45 18 30 TYP MAX UNIT 18 25 mA 72 42 0.6 0.05 150 44 0.5 300 22 -50 10 10 Vcont=Min Vcont=Max Pout=5mW Vcont=Max THD=10%, RL=32Ω THD=10%, RL=16Ω Pout=5mW Pout=5mW Rg=2.2k, Vcont=Max Vcc=3V, 100Hz, 100mVp-p Vin=0V, Rg=2.2k, Vcont=Max* *Vcc=3V, f=1kHz, RL=16Ω, unless otherwise specified. UTC GV ∆GV Pom 1 Pom 2 THD CT Von RR Vnto MIN 0.2 66 0 20 30 20 31 kΩ dB dB kΩ kΩ Vrms dB dB kΩ kΩ 200 100 36 dB dB Vrms % µVrms 38 0 28 40 3 0.5 30 1 37 3 2 2 6 UNISONIC TECHNOLOGIES CO., LTD. dB dB mW mW % dB mVrms dB mVrms 3 QW-R110-012,A UTC LAG668 LINEAR INTEGRATED CIRCUIT MOTOR ELECTRICAL CHARACTERISTICS(Ta=25°C) PARAMETER SYMBOL Current Consumption Starting Current Reference Voltage Reference Voltage Change I Reference Voltage Change II Reference Voltage Change III Current Factor Current Factor Change I Current Factor Change II Current Factor Change III Saturation Voltage at Forced ON Input Impedance at Forced ON Pin Leakage Current at Forced OFF Input Impedance at Forced OFF Pin IMC IMS Vref Vref 1 Vref 2 Vref 3 K K1 K2 K3 VCEsa Rion UTC IML Ricon TEST CONDITIONS MIN 500 0.72 Vcc=2.1~5V Im=25~250mA Ta=-10~50°C 32 Vcc=2.1~5V Im=25~250mA Ta=-10~50°C IM=200mA, Pin 14=Vcc TYP MAX UNIT 3 5 0.8 0.05 0.01 0.01 38 0.5 0.05 0.02 0.87 mA mA V %/V %/mA %/°C 43 0.6 5.6 200 33 UNISONIC TECHNOLOGIES CO., LTD. %/V %/mA %/°C V KΩ µA KΩ 4 QW-R110-012,A UTC LAG668 LINEAR INTEGRATED CIRCUIT TEST CIRCUIT 1 NOTE1 : SW12,SW12 R1,R’ =33kΩ R2,R2’ =5.1kΩ R3,R3’ =200kΩ R2,R2,=5.1kΩ C1,C’ =0.1µF NOTE2 : UTC See figure 1/2 for SW UNISONIC TECHNOLOGIES CO., LTD. 5 QW-R110-012,A UTC LAG668 LINEAR INTEGRATED CIRCUIT TEST CIRCUIT 2 UTC UNISONIC TECHNOLOGIES CO., LTD. 6 QW-R110-012,A UTC LAG668 LINEAR INTEGRATED CIRCUIT FIGURE 1 Item Symbol SW No. TEST CONDITION 1 2 3,3’ 4 5 6 7 8 9 10 11 12,12’ 13,13’ Vcc=3V,f=1kHz,RL=16Ω c c a b b a b b b a a a a Im=0mA b b b b b a b b b a a b b Vo=244mV b b b b b a a b b a a b b THD=10% b b b b b a b b b a a b b Vo=400mV c c b b b a b b b a a b b B.P.F.(30-20kHz) b-c c-b b b b a b b b a a b b Vo=244mV b b b a b a b b b a a b b Vin=100mV a a c a b a b b b a a b a Vr=Min, THD=10%, a a c a b a b b b a a b a a a c a b a b b b a a b a Pout=5mV a a c a b a b b b a a b a VR=MAX a a c a b b a b b a a b a RL=32Ω,THD=10% a a c a a a b b b a a b a RL=16Ω,THD=10% AMP Supply Icc Current Pre AMP Open Loop Gvo Gain Maximum Vom Output Voltage Total THD Harmonic Distortion Output Von Noise Voltage Cross Talk CT between CH Output Vooff Voltage when PreOff Attenuator Maximum Vimax Input Voltage Maximum Vamax Attenuation Power AMP GV Voltage Gain Channel ¡ ÷ GV Voltage Difference Maximum Pom 1 Output Power I Maximum Pom 2 Output Power II UTC UNISONIC TECHNOLOGIES CO., LTD. 7 QW-R110-012,A UTC LAG668 LINEAR INTEGRATED CIRCUIT FIGURE 2 Item Symbol SW No. TEST CONDITION 1 2 3,3’ 4 5 6 7 8 9 10 11 12,12’ 13,13’ a c c a b a b b b a a b a Pout=5mV a-c c-a c a b a b b b a a b a Pout=5mV c c c b b a b b b a a b a VR=MIN c c b a b a b b b a a b b VR=MAX c c a b b a b b b a a b a VR=MAX, BB ON c c a a b a b a b a a a a Im=0mA c c a a b a b a b a a a a c c a a b a b a b a a a a Im=100mA c c a a b a b a b a a a a Im=100mA,Vcc=2.1-5V c c a a b a b a b a a a a Vcc=3V,Im=25-250mA c c a a b a b a b a a a a Im=200mA c c a a a a b a b a a a a POWER AMP Total THD Harmonic Distortion Cross Talk CT between CH Output Von Noise Voltage Ripple RR Rejection Pre + Pulse Vnto Boost + Power Noise Motor Current IMC Consumption Starting IMS Current Reference Vref Voltage Reference Vref 1 Voltage Change I Reference Vref 2 Voltage Change II Saturation VCEsa Voltage at Forced ON Input Ricon Impedance at Forced OFF Pin *Note: a=ON, b=OFF UTC UNISONIC TECHNOLOGIES CO., LTD. 8 QW-R110-012,A