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參數(shù)資料
| 型號(hào)： | LA6558 |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP30 |
| 封裝： | 0.400 INCH, DIP-30 |
| 文件頁(yè)數(shù)： | 10/10頁(yè) |
| 文件大?。?/td> | 85K |
| 代理商： | LA6558 |
LA6558
No.6504-9/10
Relation of MUTE and Power (P-VCC)
* Connect S-VCC and P-VCC externally.
* Connect P-GND and S-GND externally.
Various MUTE functions and output, 3.3V REG operation condition
CH1, 2, 4, 5
(BTL-AMP)
CH3, 6
(LOADING)
3.3VREG
5VREG
With IN-MUTE: L
OFF
-
OFF
With thermal shutdown operating
OFF
With VREF lowering (0.7V or less)
OFF
-
* (-) indicates no-operation for functions to which MUTE, thermal shutdown, and VREF lowering correspond.
* IN-MUTE operates for BTL-AMP (CH1, 2, 4, and 5) and 3.3VREF and 5 VREF.
* VREF lowering is effective for BTL-AMP only.
Operative for ((MUTE operation)) to BTL-AMP(CH1, 2, 4, 5) and 3.3VREF, 5VREF
IN-MUTE condition
BTL-AMP
(CH1, 2, 4, 5)
3.3VREG
5VREG
H
ON
L
OFF
Operative for ((VREF lowering)) to BTL-AMP
VREF condition
BTL-AMP
(CH1, 2, 4, 5)
VREF > 0.7(V)
ON
VREF < 0.7(V)
OFF
LOADING Block
VIN*+
(FWD)
VIN*-
(REV)
Loading output
L
Brake
L
H
Reversed (VO=-1.5×REV) *1
L
Forward (VO= 1.5×FWD) *1
H
(VO=1.5×(VFO-VRE))
* When the brake is applied, each “+” and “-” output voltage becomes VCC/2.
*1 FWD: VIN6+, VIN3+, REV: VIN6-, VIN3-.
* L voltage is L<VF(≈0.6V).
* Gain of loading (CH3, 6) is 3.5dB(TYP).
CH1(BTL AMP)
CH2(BTL AMP)
CH6(LOADING)
CH4(BTL AMP)
P-VCC
MUTE
CH5(BTL AMP)
CH3(LOADING)
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