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參數(shù)資料
| 型號： | LA4587M |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 0.021 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP48 |
| 封裝： | QIP-48 |
| 文件頁數(shù)： | 4/18頁 |
| 文件大?。?/td> | 407K |
| 代理商： | LA4587M |
Operation Description
.
The input amplifiers are inverting amplifiers. The gain and HPF characteristics can be adjusted through an external C-R
(input impedance).
.
The AMSS comparator outputs pulses for an input waveform that satisfies certain set conditions (frequency and voltage
level).
.
When AMSS is not used, the input pins (pins 24 and 25) are connected to VREF (pin 33).
Notes on the ripple filter
.
The RF SVRR can be adjusted by an external capacitor connected to pin 44.
→ 39 dB
4.7 F
→ 42 dB
10 F
→ 47 dB
.
It is recommended that external transistors be equivalent to the 2SB1295 with hFE 6 rank and upward.
Note on power output
.
The power amplifier output and the common amplifier output are connected by a resistor of approximately 160
.
Notes on power mute
.
Power mute turns off the fixed current that is supplied to the power section.
.
The output DC when power mute is on is the VREF electric potential (0.75 V).
.
The output impedance when power mute is on is approximately 10 k
.
Input
Output
LA4587M
No.5204-12/18
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