參數(shù)資料
型號: SAA5290ZP
廠商: NXP Semiconductors N.V.
英文描述: One page Economy Teletext/TV microcontroller
中文描述: 一頁經(jīng)濟(jì)圖文電視/電視微控制器
文件頁數(shù): 28/33頁
文件大?。?/td> 360K
代理商: SAA5290ZP
February 1995
28
Philips Semiconductors
Preliminary specification
One page Economy Teletext/TV
microcontroller
SAA5290
Clock generator
The oscillator circuit of the SAA5290 is a single-stage
inverting amplifier in a Pierce oscillator configuration. The
circuitry between OSCIN and OSCOUT is basically an
inverter biased to the transfer point. A crystal must be
used as the feedback element to complete the oscillator
circuitry. It is operated in parallel resonance. OSCIN is the
high gain amplifier input and OSCOUT is the output. To
drive the SAA5290 externally OSCIN is driven from an
external source and OSCOUT is left open-circuit.
Fig.7 Oscillator circuit.
(1) The values of C1 and C2 depend on the crystal specification:
C1 = C2 = 2C
L
.
handbook, halfpage
MLC110
OSCOUT
OSCIN
OSCGND
C1
(1)
C2
(1)
Fig.8 Oscillator circuit driven from external source.
handbook, halfpage
MLC111
OSCOUT
OSCIN
OSCGND
not connected
external clock
not connected
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SAA5290ZP/NV 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:One page Economy Teletext/TV microcontroller
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SAA5291AH 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Economy teletext and TV microcontrollers
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