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參數(shù)資料
| 型號： | LA1780M |
| 元件分類： | 調(diào)諧器 |
| 英文描述： | 2-BAND, AUDIO TUNER, PQFP64 |
| 封裝： | QFP-64 |
| 文件頁數(shù)： | 19/38頁 |
| 文件大?。?/td> | 764K |
| 代理商： | LA1780M |
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AM
This section analyzes the gain in each of the blocks in the LA1780 when the Sanyo recommended circuit is used.
Test conditions
Ambient temperature:
26°C
Antenna and mixer 1 input frequency: 1 MHz
Mixer 2 input frequency:
10.71 MHz
IF and detector input frequencies:
450 kHz
An AM dummy is attached.
When an input level such that the output becomes –35 dBm is determined, the I/O characteristics of each stage were
determined to be as follows:
Antenna input: 9.5 dB
Mixer 1 input: 25.6 dB
Mixer 2 input: 29.5 dB
IF input:
36.0 dB
Detector input: 102.0 dB
These values allow the gains in each block to be calculated as follows.
RF gain:
16.1 dB
Mixer 1 gain: 3.9 dB
Mixer 2 gain: 6.5 dB
IF gain:
66.0 dB
No. 5724-26/38
LA1780M
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LA1781M | AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64 |
| LA1784M | AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64 |
| LA1787NM | AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64 |
| LA1787NM | AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64 |
| LA1800 | AM/FM, AUDIO SINGLE CHIP RECEIVER, PDIP22 |
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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