| NJM 2070: LOW VOLTAGE POWER AMPLIFIER m= GENERAL DESCRIPTION m@ PACKAGE OUTLINE NJM2070 is a power amplification monolithic IC of wide Operating voltage range. It is applied for audio power amplifier in portable radio and handy cassette player. = FEATURES er Operating Voltage (1.8V~ 15V) gs @ Low Operating Current 4mA typ: V*=6V) 4JM20700 HJM20708 @ Package Outline DIP8&, DMP8 @ Bipolar Technology = PIN CONFIGURATION O PIN FUNCTION _ NC . +FINPUT . 7INPUT . GND . GND . OUTPUT vt . NC a [=] Le | on nau Ne L=] Le Le] NJM20700 NJM2070M New Japan Radio Co, Ltd. 5-27NJM2070 ABSOLUTE MAXIMUM RATINGS (Ta=25C) PARAMETER SYMBOL RATINGS 15 UNIT Vv Peak Current 1 A Etseet (DIP8 ) 700 Power Dissipation DMP8 ) 5 mW +0.4 Te -40~+85 40~+125 (note) At on PC board @ ELECTRICAL CHARACTERISTICS (Wt=6V, Ta=25C) PARAMETER SYMBOL TEST CONDITION MIN. | TYP. | MAX.| UNIT : Operating Voltage vr 1.8 _ i) Vv Output Voltage Vo _ 2.7 |v Operating Current lec Ri, =00 _ 4 7 mA Input Bias Current It {200 _ nA Output Power THD= 10%, [= 1kHz Po *=6V, Ri =40 0.5 0.6 |w Po Vr=4.5V, RL =40 0.32 | |W Po VFS3y, Ri =4Q 4120 jmw Po Vt=2V, Ri =40 _ 30 |mw THD= 1%, f=tkHz Po Vt=6V, Ri =40 1500 Fmw Po Vt=4.5V, Ri =40 {250 mW Total Harmonic Distortion THD Po =0.4W, RL =40, fElkHz _ 0.25; % Voltage Gain Av f= (kHz 4l 44 47 dB Input Impedance ZIN fEtkHz 100 _ _ kQ Equivalent Input Noise Voltage Vann Rs =10k0, A Curve _ 2.5 nV Vu Rs =J0k0, B=22Hz~22kHz _ 3 uv Ripple Rejection RR f= 100Hz, Cx =100uF 24 30 |dB Cut Off Frequency fy Ay =3dB from f=ikHz , {200 kHz R=8Q, Po =250mW a TYPICAL APPLICATION AND TEST cIRCUIT yt 7 0.14F INPUT 9 20k0 + 4702F 100 nF + 19 il Ri 0.22 4F wT re I m OSCILLATION PREVENTION Put in series a 1Q resistor and a 0.22 yF capacitor on paraflel to load, if the load is speaker. Recommend putting in parallel between pin 4 and pin 7, 0.1 ~F and more than 100 F capacitors with good high frequency characteristics near to the ground and supply voltage pins on parallel. 5-28 New Japan Radio Co,LtdNJM2070 = MUTING CIRCUIT Vs oO Mute ~ - Mute OFF ON , | a Ru = 50kQ : Ru O..uF INPUT 7 2 4 + 3 100 nF New Japan Radio Co, Ltd. 5-29NJM2070 MEMO New Japan Radio Co, Ltd. [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights.