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| 7 DOT LED LEVEL METER DRIVER S1A2288X01 INTRODUCTION The S1A2288X01 is a monolithic integrated circuit consisting of 7-dot LED level meter drivers. The S1A2288X01 employs a low noise comparator which lowers the noise in the LW, MW band to 10 dB less than the previously mentioned LED drivers. 16-DlP-300A FEATURES * * * * * * LED current can be set by an external resistor Internal detection amplifier Internal voltage regulator Constant current output Fitted with a signal detect output pin VU meter scale ORDERING INFORMATION Device S1A2288X01-D0B0 Package 16-DlP-300A Operating Temperature 20C - +70C BLOCK DIAGRAM IR1 16 IR2 15 VREG 14 OUT 13 IN(-) 12 - IN(+) 11 VCC 10 SDET 9 VREG + LED DRIVER CONSTANT CURRENT SOURCE 1 D7 2 D6 3 D5 4 D4 5 D3 6 D2 7 D1 8 GND 1 S1A2288X01 7 DOT LED LEVEL METER DRIVER ABSOLUTE MAXIMUM RATINGS (Ta = 25C) Characteristic Supply Voltage Amp Input Voltage D Terminal Output Current D Terminal Output Voltage Power Dissipation Operating Temperature Storage Temperature Symbol VCC VI ID VD PD (Ta +70C) TOPR TSTG Value 18 0 - VCC 30 VCC 650 -20 - +70 -40 - +125 Unit V V mA V mW C C ELECTRICAL CHARACTERISTICS CharacterIstic Quiescent Circuit Current Input Bias Current Input Offset Voltage Amp Gain Reference Voltage Signal Detection Output High Level Output Current 1 Outut Current 2 Output Leakage Current Symbol ICCQ IBIAS VIO GV VREF VOH (DET) IO1 IO2 ILEK VCL (ON) 1 VCL (ON) 2 VCL (ON) 3 Comparator on Level VCL (ON) 4 VCL (ON) 5 VCL (ON) 6 VCL (ON) 7 0dB Level VCL (ON) 5 VCC = 6.2V - 16V, VREF = 2.4 - 2.9V VCC = 6.2V - 16V VCL(ON)5 shall be taken for 0dB. Open Loop VCC = 6.2 ~ 16V, RL =10k RL = 10k R1 = 10k, R2 = R1 = 10k, R2 =22k R1 = 4.7k, R2 = Test Conditions R1 = 4.7k, R2 = - - Min. - - - 50 2.4 10 4.2 6.3 - -22 -11 -6.5 -3.5 - +2.5 +5 1.2 Typ. 8 -200 2 70 2.6 10.3 7.1 10.6 - -20 -10 -6 -3 0 +3 +6 1.3 Max. 12 -800 10 - 2.9 - 10.0 15.0 20 -18 -9 -5.5 -2.5 - +3.5 +7 1.45 V dB Unit mA nA mV dB V V mA mA A NOTE: Applied pin: 4, 5, 6, 7 2 7 DOT LED LEVEL METER DRIVER S1A2288X01 TEST CIRCUIT 10 F INPUT 18k R1 R2 90k VR 22K 3.3 F Vcc 4.7 F 10k 16 15 14 13 12 11 10 9 S1A2288X01 1 2 3 4 5 6 7 8 RL D6 D7 10 F D4 D5 D1 D2 D3 3 S1A2288X01 7 DOT LED LEVEL METER DRIVER NOTES 4 |
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