參數(shù)資料
型號(hào)： LA1776M
元件分類： 調(diào)諧器
英文描述： 2-BAND, AUDIO TUNER, PQFP64
封裝： 14 X 14 MM, QFP-64
文件頁(yè)數(shù)： 25/41頁(yè)
文件大?。?/td> 547K
代理商： LA1776M
No.8085-31/41
LA1776M
7. Multiplex Block
7-1. Pilot Canceller
The pin 18 pilot canceller signal waveform is a 19 kHz signal in which the third harmonic is not present. Since
this signal has the same phase as the pilot signal, no capacitor is required between pin 18 and ground. Since the
third harmonic is not present, excellent pilot cancellation in both the left and right channels can be acquired by
adjusting the circuit with a variable resistor.
7-2. Separation Adjustment (pin 19)
The separation is adjusted by adjusting the sub-decoder input level with the pin 19 variable resistor VR.
Adjusting VR only changes the sub-channel modulation. It does not change the monaural (main) output level.
Degradation of high band separation in the decoder can be avoided if the impedance of the external capacitor
value (C) is made enough smaller than the impedance of VR in the sub-channel signal frequency band (23 to 53
kHz).
8. MRC Block
17
30
11
10
6800 pF
18
0.01
F 50 k
PILOT
CANCEL
GATE
Noise canceller
input
To the
multiplexer
–
19
5 k
0.047
F
C
To the
subdecoder
20 k
Larger
24
32
27
MRC
5.5 k
30 k
5.5 k
1 k
DC BUFFER
FM Vsm
FM/AM Vsm
HPF: C26, 30K
LPF: C32
Gain: R26
7
A
0.22
F
C26
3.3
F
100
10 k
100 k
1000 pF
R26
51 k
C27
C24
C32
26
+
*: When the AC component is removed with C24.
相關(guān)PDF資料
PDF描述
LA1776M 2-BAND, AUDIO TUNER, PQFP64
LA1780M 2-BAND, AUDIO TUNER, PQFP64
LA1781M AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64
LA1784M AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64
LA1787NM AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LA1776M_09 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Single-Chip Tuner IC for Car Radios
LA1776M-MPB-E 功能描述:調(diào)諧器 RoHS:否 制造商:NXP Semiconductors 功能: 噪聲系數(shù): 工作電源電壓: 最小工作溫度: 最大工作溫度:
LA177B/HG-2 制造商:LIGITEK 制造商全稱:LIGITEK electronics co., ltd. 功能描述:LED ARRAY
LA177B-1-SRG 制造商:LIGITEK 制造商全稱:LIGITEK electronics co., ltd. 功能描述:LED ARRAY
LA177B-HG-2 制造商:LIGITEK 制造商全稱:LIGITEK electronics co., ltd. 功能描述:LED ARRAY
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*