384
Motor driver ICs
Reversible motor driver
BA6208 / BA6208F
The BA6208 and BA6208F are monolithic ICs used for driving reversible motors. They allow control of reversible motors
in cassette players and other electrical equipment by using TTL-level logic signals.
The ICs contain a logic section, which controls forward and reverse rotations as well as forced stop, and an output power
section, which can supply an output current of up to 100mA (typical) according to the logic control.
Features
1) Motor driving power transistors are built in (100mA
typically).
2) Brake is applied when stopping the motor (when in-
puts A and B are both HIGH level).
3) Built-in diode to absorb surge currents.
4) Very low standby circuit current when inputs A and B
are both LOW level.
5) Wide range of operating supply voltage (4.5
15.0V).
6) Direct control with the TTL logic.
Absolute maximum ratings (Ta = 25
C)
Recommended operating conditions (Ta = 25
C)
Input truth table
hk3370/hk3470
harman/kardon
79
Содержание HK 3370
Страница 24: ...4 BLOCK DIAGRAM HK3370 HK3470 24...
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Страница 71: ...3 Circuit Description CPU IC401 uPD780204GF 1 Pin Configuration hk3370 hk3470 harman kardon 71...
Страница 75: ...1 1 1 1 1 1 MANUAL TUNING UP DOWN MANUAL TUNING UP DOWN KEY OFF 1 2 3 1 4 5 6 75...
Страница 76: ...1 2 3 1 4 5 6 1 2 3 1 3 1 1 2 2 3 1 4 5 6 AUTO TUNING UP DOWN POWER ON 76...
Страница 77: ...4 Pheriperal IC Operation 1 FUNCTION IC LC7821 1 3 77...
Страница 82: ...HI M602H0 REMOTE RECEIVER hk3370 hk3470 harman kardon 82...
Страница 84: ...hk3370 hk3470 harman kardon 84...
Страница 85: ...IC 603 LA3401 hk3370 hk3470 harman kardon 85...
Страница 86: ...hk3370 hk3470 harman kardon 86...
Страница 87: ...hk3370 hk3470 harman kardon 87...
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Страница 91: ...hk3370 hk3470 harman kardon 91...
Страница 102: ...Front End FE601 FTA3 509HA U S A Version Front End FE601 FTA4 460H E U Version hk3370 hk3470 harman kardon 102...
Страница 103: ...hk3370 hk3470 harman kardon 103...
Страница 104: ...HK3370 HK3470 P C BOARD MAIN MAIN 104...
Страница 105: ...HK 3370 P C BOARD AMP AMP 105...
Страница 106: ...P C BOARD AMP HK 3470 AMP 106...
Страница 107: ...P C BOARD FRONT FRONT HK3370 HK3470 107...
Страница 108: ...P C BOARD TUNER VR HP COIL TUNER VR HP COIL HK3370 HK3470 108...
Страница 109: ...HK3370 HK3470 P C BOARD TONE POWER SW LED TONE POWER SW LED 109...
Страница 110: ...HK 3370 SCHEMATIC DIAGRAM MAIN 110...
Страница 111: ...SCHEMATIC DIAGRAM MAIN HK 3370...
Страница 112: ...HK 3370...
Страница 113: ...SCHEMATIC DIAGRAM MAIN HK3470 113...
Страница 114: ...SCHEMATIC DIAGRAM MAIN HK3470...
Страница 115: ...HK3470...
Страница 116: ...SCHEMATIC DIAGRAM AMP TONE ETC HK3 POWER AMP TONE VR LED POWER SW POWER LED HK 3370 HK 3470 116...
Страница 117: ...SCHEMATIC DIAGRAM FRONT HK3370 HK3470 117...
Страница 118: ...SCHEMATIC DIAGRAM FRONT HK3370 HK3470...
Страница 119: ...HK3370 HK3470...
Страница 120: ...SCHEMATIC DIAGRAM TUNER VR HP HK 3370 HK 3470 HEAD PHONE TUNER 120...
Страница 121: ...12 WIRING DIAGRAM HK 3370 HK 3470 121...
Страница 122: ...HK 3370 122...
Страница 123: ...HK 3470 123...