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參數(shù)資料
| 型號： | REJ03F0040_M61528FP |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | LEAD FREE A6832 PLCC |
| 中文描述： | 超臨界型固定式均衡器，汽車音響 |
| 文件頁數(shù)： | 15/31頁 |
| 文件大小： | 306K |
| 代理商： | REJ03F0040_M61528FP |
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M61528FP
Rev.1.1, Dec.17.2003, page 15 of 30
Soft-Changing
This IC built in the Soft-changing circuit for reduce the step-noise of Fader when internal switch changing.
By this function, Switching noise of no-signal and some signals can be reduced.
SOFT-CHANGING 1
This is the circuit which changes gain smoothly at the setup time.
This function can work as follows,
(1) At the time of Soft-changing ON.
(2) Slot15/D6=0
(3) After the last Soft-changing is completed.
For example, the movement when Fader is changed from 0dB to –6dB is shown in the right figure(ex.1).
After this IC receive the data of fader:-6dB , this circuit changes fader setting from 0dB to –6dB at a time.
Switching time is the time when it was set up with Soft-changing time.
(ex. 1) Fader : 0dB
→
-6dB changing. Soft-changing time : 33ms
Fader
0dB
Fader
-6dB
t:Soft-changing time(You may change it with serial DATA.)
*
1
)
While Soft-changing works (PIN15 output “H”)
next data isn't accepted.
*
2
)
PIN15 outputs “L”except for the time of
t=33mS
Soft-changing.
15 pin
Output
While Soft-changing works,
PIN15 output “H”
DATA
CLOCK
Slot13
The latch condition
D0toD14
D15
Soft-Changing Time
Time
83mS(41.5mS)
66mS(33mS)
41mS(20.5mS)
33mS(16.5mS)
The change of the Soft-changing time is possible by the setting of D2.
D2=“1” : The left time of the left table.
(Soft-changing time : 83mS,66mS,41mS,33mS)
D2=“0” : The right time of the left table
(Soft-changing time : 41.5mS,33mS,20.5mS,16.5mS)
D0
1
1
0
0
D1
1
0
1
0
D2
1/0
1/0
1/0
1/0
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| REJ03F0041_M61532FP | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:8ch Electronic Volume with 9 Input Selector |
| REJ03F0049_M56750FP | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:3-PHASE BRUSHLESS MOTOR DRIVER |
| REJ03F0052_M54679SP | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:2-Phase Stepper Motor Driver |
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| REJ03F0059_M61533FP | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4ch Electronic Volume with AGC |
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