參數(shù)資料
型號(hào)： MGM3000X
廠(chǎng)商： SIEMENS A G
元件分類(lèi)： 消費(fèi)家電
英文描述： Video Modulator for FM/AM-Audio
中文描述： SPECIALTY CONSUMER CIRCUIT, PDSO20
文件頁(yè)數(shù)： 1/23頁(yè)
文件大?。?/td> 1016K
代理商： MGM3000X
Functional Description and Application
The monolithic integrated circuit MGM 3000X is especially suitable as a modulator for
the 48 to 860 MHz frequency range.
Video recorders, cable converters, TV-converter networks, demodulators, video
generators, video security systems, amateur TV-applications and personal computers.
Circuit Description
Oscillator
The RF-oscillator is available at pins 3 - 7. The oscillator operates as a symmetrical
Colpitts circuit. The oscillator chip ground, pin 5, should be connected to ground at the
resonance circuit shielding point. An external oscillator can be injected inductively or
capacitively via pins 3 and 7. The layout of the PCB should be such as to provide a
minimum shielding attenuation between the oscillator pins 3 - 7 and modulator output
pins 15 - 17 of approximately 80 dB.
Type
Ordering Code
Package
MGM 3000X
Q67000-A5179
P-DSO-20-1 (SMD)
MGM 3000X
Q67006-A5179
P-DSO-20-1 Tape & Reel (SMD)
Video Modulator for
FM/AM-Audio
Bipolar IC
MGM 3000X
P-DSO-20-1
Features
G
FM- and AM-audio modulator
G
Audio carrier output for suppression of harmonics
G
Sync level clamping of video input signal
G
Controlling of peak white value
G
Continuous adjustment of modulation depth for
positive or negative values
G
Symmetrical mixer output with separate ground area
G
Symmetrical oscillator with separate RF-ground
G
Low spurious radiation
G
High stability of the RF-oscillator frequency
G
High stability of the audio oscillator
G
Internal reference voltage
G
12 V supply voltage
Semiconductor Group
1
12.94
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