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| MITSUMI Quad Differential Amp MM1366 Quad Differential Amp Monolithic IC MM1366 Outline This IC is a 0dB gain amp with 4 channels of built-in differential input and differential output. It has powerful noise removal at common mode level. Features (1) S/N can be improved for common mode noise on internal and external signal transmission due to differential input/output. (2) CMRR (common mode rejection ratio): 60 dB typ. (3) PSRR (power supply rejection ratio): 80 dB typ. (4) Consumption current 1.5mA typ. Package TSOP-20A Applications (1) Notebook PC audio Pin Description Pin No. 1 2 3 4 5 6 7 8 9 10 Pin name -OUT1 +OUT1 -IN1 +IN1 VCC +IN2 -IN2 +OUT2 -OUT2 GND1 Functions Inverting output of AMP1 Non Inverting output AMP1 Inverting input to AMP1 Non Inverting input to AMP1 Supply voltage input pin Non Inverting input to AMP2 Inverting input to AMP2 Non Inverting output of AMP2 Inverting output of AMP2 GND for AMP1, AMP2 connected to GND2. Pin No. 11 12 13 14 15 16 17 18 19 20 Pin name BIAS -OUT3 +OUT3 -IN3 +IN3 GND2 +IN4 -IN4 +OUT4 -OUT4 Functions BIAS voltage terminal BIAS voltage=VCC/2 Inverting output of AMP3 Non Inverting output of AMP3 Inverting input to AMP3 Non Inverting output of AMP3 GND for AMP3, AMP4 connected to GND1. Non Inverting output of AMP4 Inverting input to AMP4 Non Inverting output of AMP4 Inverting output of AMP4 MITSUMI Quad Differential Amp MM1366 Block Diagram Absolute Maximum Ratings Item Storage temperature Operating temperature Supply voltage Allowable loss (Ta=25C) Symbol TSTG TOPR VCCmax. Pd Ratings -40~+125 -20~+75 10 300 Units C C V mW Recommended Operating Conditions Item Operating temperature Operating voltage 1 Operating voltage 2 Symbol TOPR VOP VOPBIAS Ratings -20~+75 4.0~6.0 VOP/2 Units C V V MITSUMI Quad Differential Amp MM1366 Electrical Characteristics (Except where otherwise indicated, Ta=25C, VCC=5V, f=1kHz, VBIAS=2.5V) Item Full circuit current consumption Input impedance Input voltage (DC) Voltage gain 1 Voltage gain 2 (50kHz) Voltage gain 3 (200kHz) Differencial BIAS voltage input / output Output voltage Maximum output voltage Total Harmonic Distortion Output impedance Common mode ripple rejection ratio Power supply ripple rejection ratio 1 Power supple ripple rejection ratio 2 Output noise voltage Signal ICC ZIN Vi AV1 AV2 AV3 VB VOR Vmax. THD ZO CMRR PSRR1 PSRR2 VON RL=10k, Input 1.0VP-P f=100Hz, RL=10k, VCC=1.0VP-P f=20kHz, RL=10k, VCC=1.0VP-P Range 10Hz~110kHz BW=10Hz~110kHz 50 70 46 RL=10k, When THD=10% VBIAS=2.5V RL=10k, Input 1.0VP-P RL=10k, fIN=20Hz~10kHz RL=10k, fIN=50kHz RL=10k, fIN=200kHz Measurement conditions When non signal input,non load Input voltage=0, RL= Min. Typ. Max. Unit 0.9 37.5 1.0 -1.0 -6.0 -12 1.0 1.00 1.25 0.03 5.0 60 80 52 30 90 0.10 15.0 0 -3.0 1.5 47.0 2.4 57.5 VCC-1.0 +1.0 +1.0 12 VCC-1.0 mA k V dB dB dB mV V Vrms % dB dB dB Vrms -16.0 -12.0 -8.0 Internal Circuit MITSUMI Quad Differential Amp MM1366 Output circuit Measuring Circuit MITSUMI Quad Differential Amp MM1366 Time Waveforns AMP1 VCC +IN1 BIAS GND VCC -IN1 BIAS GND VCC +OUT1 BIAS GND VCC -OUT1 BIAS GND AMP2, AMP3, AMP4 *1 :: BIAS voltage=VCC/2 are same as AMP1. *2 MITSUMI Quad Differential Amp MM1366 Application Circuit Note 1 : This is 0dB defferential amp that have plus and minus pin at input and output. (The condition of measuring gain is single input and output.) Note 2 : The gain is 6dB at typical application circuit. Note 3 : When connect A amplifier 2 and B Amplifier 3, improve for distortion rate from THD1=-70dB to THD2=-75dB. (when +OUT3 output-10dB voltage) Characteristics Gain-Frequency 0 -2 VOUT-THD 0 -20 +OUT -OUT Gain (dB) -4 -6 -8 -10 +IN1, -OUT -12 1.0E+01 1.0E+02 1.0E+03 1.0E+04 1.0E+05 1.0E+06 THD (dB) -40 -60 -80 -100 -30 -20 -10 0 10 Frequency (Hz) VOUT (dBV) Note: The distortion rate for +IN, -OUT can be improved by -15dB as compared to +IN, -OUT. (VOUT = -10dBV) |
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