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參數(shù)資料
| 型號： | LA1780M |
| 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(jī) |
| 文件頁數(shù)： | 20/38頁 |
| 文件大?。?/td> | 764K |
| 代理商： | LA1780M |
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Usage Notes
1. Notes on V
CC
and Ground
2. Notes on AM Coil Connection
The V
CC
used for the first oscillator coil connected to pin 7 must be at the same potential as pin 61.
Connect to the IFT connected with pin 45, and to the MIX coil connected with pin 54. V
CC
must be at the same
potential as pin 40.
3. AM/FM Switching
Pin 6 is also used as the FM front end and RF AGC V
CC
4. Relationship between Pin 23 and Pin 26
FM mode
Pin 26 functions as both the stereo indicator and the SD pin.
Pin 23: DC-input seek/stop pin (control pin)
AC output IF counter buffer pin
The Pin 23 Control Function and the Relationship between Pin 23 and Pin 26
No. 5724-20/38
LA1780M
Pin 40
V
CC
for the FM IF, AM, NC, MPX, and MRC blocks
Ground for the FM IF and AM blocks
Pin 25
Pin 14
Ground for the NC, MPX, and MRC blocks
Pin 61
V
CC
for the FM front end, AM first mixer, and first oscillator blocks
V
CC
for the FM front end and AGC blocks, and the AM/FM switching pin
Ground for the FM front end, first mixer, and first oscillator blocks
*
Pin 6
Pin 3
Pin 6 voltage
Mode
8
FM
OPEN
AM
Between 0 and a few
thousand Ohms.
IF counter buffer
SW1
SW2
Pin 23 voltage
Pin 26
Pin 26
OPEN
OPEN
5 V
IF counter buffer on
SD
ON
OPEN
2.5 V
OFF
High-speed SD
—
ON
Under 0.7 V
OFF
Stereo indicator
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| LA1780 | Single-Chip Tuner IC for Car Radios |
| LA1781M | Single-Chip Tuner IC for Car Radios |
| LA1784 | Single-Chip Tuner IC for Car Radios |
| LA1784M | Single-Chip Tuner IC for Car Radios |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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: |
| LA1781MD-A-MPB-E | 制造商:ON Semiconductor 功能描述:ANALOG CAR RADIO TUNER - Trays |
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