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參數(shù)資料
| 型號(hào)： | 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(yè)數(shù)： | 1/9頁(yè) |
| 文件大小： | 242K |
| 代理商： | LA7780M |
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
Overview
The LA7780M is a downconverter for QPSK data
demodulation for digital CATV transmission. This IC
integrates a preamplifier, an AGC amplifier, a mixer, an
oscillator, a post-amplifier, and other circuits in a single
chip, and provides all the functions required from cable
signal input through output to the A/D converter.
Features
Since a preamplifier is built in, the LA7780M has
adequate sensitivity to handle the input signal from the
cable directly.
(Input signal level:–30 to +30 dBm)
Both internal and external AGC are supported as the
AGC amplifier drive technique.
The output amplitude of the post amplifier used to drive
the A/D converter is 2 Vp-p (typical).
Applications can be designed to use either a crystal or an
inductor oscillator.
Functions
Preamplifier
AGC amplifier
Mixer
Oscillator
Post amplifier
IF AGC (internal/external)
AGC detector
Package Dimensions
unit: mm
3108-MFP24D
0.25
24
13
15.3
1
0.67
0.4
1.27
7
9
1
0
2
2
0
Monolithic Linear IC
LA7780M
D1698RM (OT) No. 5268-1/9
SANYO: MFP24D
[LA7780M]
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
QPSK Downconverter for CATV Systems
Ordering number : EN5268A
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
V
CC
max
V max
Pins 5, 6, and 17
7.0
V
Circuit voltage
Pins 4, 12, and 24
V
CC
30
V
I
4
I
13
I
16
The pin 4 output current
mA
Circuit current
The pin 13 sink current
2
mA
The pin 16 sink current
Ta
≤
70°C
2
mA
Allowable power dissipation
Pd max
540
mW
Operating temperature
Topr
–20 to +70
°C
Storage temperature
Tstg
–55 to +150
°C
Specifications
Maximum Ratings
at Ta = 25°C
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參數(shù)描述 |
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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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