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SP8794 Schematic ( PDF Datasheet ) - GEC PLESSEY

Teilenummer SP8794
Beschreibung 2-MODULUS EXTENDER
Hersteller GEC PLESSEY
Logo GEC PLESSEY Logo 



Gesamt 4 Seiten
		
SP8794 Datasheet, Funktion
SP8794
60MHz48 (2-MODULUS EXTENDER)
ADVANCE INFORMATION
DS3676-1·2
The SP8794 is a divide-by-eight counter designed for use
with 2-modulus dividers. It increases the minimum division
ratio of the 2-modulus divider while retaining the same difference
in division ratio. The device is suitable for use in low power
frequency synthesis interfacing to CMOS or TTL.
FEATURES
s Very Low Power
s Control Input and Counter Output will Interface Directly
to TTL or CMOS
s Interfaces to GPS SP8000 Series Programmable
2-Modulus Dividers
QUICK REFERENCE DATA
s Supply Voltage: 5·0V
s Power Consumption: 40mW
s Temperature Range: 255°C to 1125°C (A Grade)
230°C to 170°C (B Grade)
ABSOLUTE MAXIMUM RATINGS
Supply voltage
Open collector output voltage
Storage temperature range
Max. junction temperature
Max. clock input voltage
Output sink current
8V
12V
265°C to 1150°C
1175°C
2·5V p-p
10mA
CLOCK INPUT
CLOCK INPUT
VCC
CONTROL INPUT
VEE
78 1
62
54 3
CONTROL OUTPUT
COUNTER OUTPUT
NC CM8
Fig. 1 Pin connections - bottom view
ORDERING INFORMATION
SP8794 A CM
SP8794 B CM
SP8794 AC CM
CONTROL 2
OUTPUT
CONTROL
INPUT
6
DQ
DQ
CK CK
VCC
1
DQ
DQ
CK CK
DQ
DQ
CK CK
OUTPUT
STAGE
3 OPEN COLLECTOR
COUNTER OUTPUT
87
CLOCK INPUT CLOCK INPUT
5
VEE (0V)
NOTE:
NEGATIVE GOING OUTPUT
SHOULD CLOCK FOLLOWING STAGE
Fig. 2 Functional diagram


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