TA7784P Просмотр технического описания (PDF) - Unisonic Technologies
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TA7784P Datasheet PDF : 4 Pages
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UTC TA7784P LINEAR INTEGRATED CIRCUIT
APPLICATION INFORMATION
1.Forward/Reverse select switch
1） Threshold voltage: Pin 3 is coupled to the base of
Q1( PNP-Tr) as Fig. 1 The threshold voltage is 0~0.3V
at reverse stage and is 1.1~Vcc at the Forward stage.
2） The recommended Forward/ Reverse select circuit is
shown in Fig. 2
3） I3(Fig. 1)=12µA,Ta=25°C。
2.Equalizer control switch
Pin 15 is coupled to the base of Q2( PNP Tr) as shown
Fig. 3. The emitter potential of Q2 is 2.6V. The threshold
voltage is 21~Vcc at Metal EQ stage and is 0~1.2V at the
Normal EQ stage.
IE=100 µA
3
I3
30~50W
3
1µF
Fig 1
1.5V
F
R
3.C2/C3/C4/C5
Capacitor C2~C5 may be required for preventing a
instability caused by the pattern layout or interference of
external high frequency signal.
2.6V
15
Fig 2
Fig 3
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UTC UNISONIC TECHNOLOGIES CO., LTD. 4
QW-R110-010,A
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