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參數(shù)資料
| 型號： | LA7780M |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | QPSK Downconverter for CATV Systems |
| 中文描述： | 調(diào)制變頻器的有線電視系統(tǒng) |
| 文件頁數(shù)： | 3/9頁 |
| 文件大?。?/td> | 242K |
| 代理商： | LA7780M |
No. 5268-3/9
LA7780M
Note 2.
Input: SG1 = 69.55 MHz, SG2 = 70.55 MHz
Other conditions:
Internal AGC mode
Pin 24 left open.
Output: The post amplifier output (pin 13)
Note 3.
Post amplifier output level = –3 dB
Remove the low-pass filter between pins 14 and 16.
(
Short the coil of 27 μH and remove the capacitors of 27 pF and 15 pF.)
Note 4.
Input: SG1 = 69.55 MHz
Note 5.
SG = 75 MHz, 20 dBm V
Note 6.
SG1 = 75 MHz, SG2 = 76 MHz,
Adjust the pin 1 level until the IM3 in the pin 4 output is 40 dB.
Output:RF1-OUT (pin 4)
V
O(IM3)
= 40 dB
Other conditions:
Internal AGC mode
Pin 24 left open.
Output: The signal level such that the post
amplifier output (pin 13) falls by –3 dB.
Point
= 20 dBmV (69.55 MHz) + 20 dBmV (70.55 MHz)
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| LA7783V-TLM-E | 制造商:Sony Semiconductor Solutions Division 功能描述: |
| LA7784 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Downconverter IC for Digital CATV |
| LA7784FN | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:For Digital CATV Down Converter IC |
| LA7784FN-TLM-E | 制造商:Sony Semiconductor Solutions Division 功能描述: |
| LA7784-MPB-E | 功能描述:上下轉(zhuǎn)換器 RoHS:否 制造商:Texas Instruments 產(chǎn)品:Down Converters 射頻:52 MHz to 78 MHz 中頻:300 MHz LO頻率: 功率增益: P1dB: 工作電源電壓:1.8 V, 3.3 V 工作電源電流:120 mA 最大功率耗散:1 W 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFP-128 |
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