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參數(shù)資料
| 型號(hào)： | LA1145M |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | FM IF System (Quadrature Detector) for Car Radio |
| 中文描述： | 如果系統(tǒng)（正交探測(cè)器）車用收音機(jī)調(diào)頻 |
| 文件頁(yè)數(shù)： | 9/17頁(yè) |
| 文件大?。?/td> | 335K |
| 代理商： | LA1145M |
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SD Output Circuit
1.
LA1145 SD output differs from the LA1140’s pin substitute SD output as shown below. The SD output on the LA1145 does
not operate in conjunction with the soft mute characteristics.
1)
LA1140
2)
LA1145
As shown, the SD output is the logical AND of the band mute and S-meter comparator outputs.
2.
Signal search using the SD output circuit
2-1 The transition response characteristics of the SD output circuit depends on the time constants of pins 15, 16, 17 and 8.
As the SD output transition response characteristics are determined by the pin with the largest time constant, erroneous
stopping will result when a search time is less than the largest one.
2-2 Band mute range circuit time constant (pin 8)
An equivalent circuit to the band circuit is shown below.
Hole detector
Signal meter
Mute driver
Band mute
output
Hole detector
Signal meter
Mute driver
Bandmute
output
Comparator
Exhibit hysteresis
Mute switch circuit
LA1145, 1145M
No. 2725-9/17
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相關(guān)代理商/技術(shù)參數(shù) |
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| LA1145M-TLM-E | 功能描述:射頻接收器 CAR RADIO FM IF SYSTEM RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel |
| LA1150 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| LA1150N | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:FM IF Amplifier for Car Radio |
| LA-115-24-02-00-00 | 功能描述:熱電組件 Liquid Air 113W 5.8A 139W 300x152mm RoHS:否 類型:Air to Air Assembly 制冷功率:58 W 最大電流:6.2 A 最大電壓:12 V 制造商:Laird Technologies / Thermal Solutions |
| LA1160 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
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