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参数资料
| 型号： | LA1776M |
| 厂商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分类： | 调谐器 |
| 英文描述： | 2-BAND, AUDIO TUNER, PQFP64 |
| 封装： | 14 X 14 MM, QFP-64 |
| 文件页数： | 7/41页 |
| 文件大小： | 547K |
| 代理商： | LA1776M |
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Pin No.
Pin
Description
Equivalent circuit
No.8085-15/41
LA1776M
Continued on next page.
Continued from preceding page.
31
30
FM
detector
output
AM
detector
output
VCC
10 k
R
0.22
F
Noise
canceller
50 k
+
30
31
Noise canceller input
AM/FM detector output
Pin 30 is the noise canceller input. The input
impedance is 50 k
Pin 31 is the AM and FM detector output
In FM mode, this is a low-impedance output.
In AM mode, the output impedance is 10 k
.
The AM detection output can be modified by
adjusting the value of R.
32
29
VCC
VSM
10 k
1000 pF
32
IF S-meter output
FM S-meter output block
33
SOFT
MUTE
Band
muting
SEEK
OFF
VCC
0.022
F
C1
10 k
50 k
MUTE
AMP.
SD circuit
33
Mute drive output
The muting time constant is determined by an
external RC circuit as described below.
Attack time: TA = 10 k
× C1
Release time: TR = 50 k
× C1
Noise convergence adjustment
The noise convergence when V33 is 2 V will be
about 40 dB.
(The basis can be varied from 5 to 35 dB for a 1
kHz 22.5 kHz deviation output.)
*: There is no hole detection function.
Muting off function
The muting function is turned off by a 4 k
resistor
between pin 33 and ground.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LA1776M_09 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Single-Chip Tuner IC for Car Radios |
| LA1776M-MPB-E | 功能描述:调谐器 RoHS:否 制造商:NXP Semiconductors 功能: 噪声系数: 工作电源电压: 最小工作温度: 最大工作温度: |
| LA177B/HG-2 | 制造商:LIGITEK 制造商全称:LIGITEK electronics co., ltd. 功能描述:LED ARRAY |
| LA177B-1-SRG | 制造商:LIGITEK 制造商全称:LIGITEK electronics co., ltd. 功能描述:LED ARRAY |
| LA177B-HG-2 | 制造商:LIGITEK 制造商全称:LIGITEK electronics co., ltd. 功能描述:LED ARRAY |
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