M52342SP 데이터 시트보기 (PDF) - MITSUBISHI ELECTRIC
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M52342SP Datasheet PDF : 14 Pages
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Pin 13 (QIF OUTPUT / INTER OUTPUT)
driving current
: 0.5mA
terminal voltage : 2.45V
13
MITSUBISHI ICs (TV)
M52342SP
PLL-SPLIT VIF/SIF IC
In both the split and intercarrier system, the carrier signal
to SIF provided from pin 15 through an emitter follower.
Pin 14 (VCC)
VCC
14
The recommended supply voltage is 5V or 9 to 12V.
In the case of 5V supply, it should be tied to pin 17.
In the case of 9 to 12V supply, a regulated output of 5V
are available in pin 17.
Pin 15, Pin 16 (VCO COIL)
850Ω
850Ω
466Ω
15
16
466Ω
Connecting a tuning coil and capacitor to these pins enables
an oscillation.
The tuning capacitor of about 30pF is recommended.
The oscillation frequency is tuned in f0.
In the actual adjustment, the coil is tuned so that the AFT
voltage is reached to Vcc/2 with f0 as an input.
The printed pattern around these pins should be designed
carefully to prevent an pull-in error of VCO, caused by the leakage
interference from the large signal level oscillator to adjacent pins.
The interconnection should be designed as short as possible.
In case the printed pattern has the interference problem, a capacitor
of about 1pF is connected between pin 15 or 16 and GND so as to
cancel the interference and keep enough pull-in range even
in a weak electric field.
Pin 17 (REG. OUTPUT)
17
12.1kΩ
3.8kΩ
It is a regulated 5V output which has current drive
capability of approximately 15 mA.
12
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