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參數(shù)資料
| 型號： | LA1780 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Single-Chip Tuner IC for Car Radios |
| 中文描述： | 單芯片調(diào)諧器IC的汽車收音機 |
| 文件頁數(shù)： | 11/38頁 |
| 文件大?。?/td> | 764K |
| 代理商： | LA1780 |
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No. 5724-11/38
LA1780M
Pin No.
Function
Description
Equivalent circuit
Forced
SD: 2.5 V
SD circuit
IF counter
buffer
FM
S-meter
AM
S-meter
Outputs a 1-mA
current during AM
reception
Stereo
indicator
Seek/stop
switching
Continued from preceding page.
Continued on next page.
This pin functions both as the IF
counter buffer (AC output) and as
the seek/stop switch pin.
The voltage V23 switches
between the following three
modes.
During FM reception:
5 V:
Seek mode
2.5 V: Forced SD mode
0 V:
Reception mode
AM reception
(two modes: 0 and 5 V)
5 V:
Seek mode
0 V:
Reception mode
23
IF counter buffer seek/stop
switching
24
AM/FM signal meter
Fixed-current drive signal meter
output
In AM mode, pin 32 outputs a
1-mA current. Thus the HCC
circuit is turned off.
32
Dedicated FM signal meter
FM reception: the voltage V23
switches between three modes
as follows.
5 V:
The SD pin operates linked
to the IF counter buffer.
2.5 V: Forced SD mode: operates
as the SD pin.
0 V:
Reception mode: stereo
indicator
AM reception: (two modes: 0 and 5 V)
5 V:
Operates as the seek SD pin.
0 V:
Reception mode. Not used.
26
Stereo indicator for the SD pin
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相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LA1780M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Single-Chip Tuner IC for Car Radios |
| LA1780MA-A-MPB-E | 制造商:ON Semiconductor 功能描述:ANALOG CAR RADIO TUNER - Trays 制造商:Rochester Electronics LLC 功能描述: 制造商:ON Semiconductor 功能描述:FTRAY - ANALOG CAR RADIO TUNER |
| LA1781M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:For Car Radios Single-Chip Tuner IC |
| LA1781M_09 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:For Car Radios Single-Chip Tuner IC |
| LA1781MA-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: |
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