SP8782 查看數據表（PDF） - Mitel Networks
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SP8782 Datasheet PDF : 8 Pages
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SP8782A & B
SP8782A & B
1GHz ÷ 16/17, ÷32/33 Multi-Modulus Divider
Features
q Advanced Resynchronisation techniques to negate
loop delay effects
q CMOS compataible output capability
q Multi-Modulus division
q Available as DESC SMD 5962-9208901MPA
DS3651
Issue 2.4
June 1999
Odering Information
SP8782 A DG
SP8782 B MP
DES9208901/AC/DGAZ(SMD)
Description
The SP8782 is a multi-modulus divider which divides by 16/
17 when the Ratio Select input is low and by 32/33 when
theRatio Select input is high. When high, the modulus Control
input selects the lower division ratio (16 or 32) and the higher
ratio (17 or 33) when it is low.
The device uses resynchronisation techniques to reduce the
effects of propagation delays in frequency synthesis.
The SP8782A (ceramic DIL package) is characterised over
the full military temperature range of -55°C to +125°C, the
SP8782B (miniature plastic DIL package) over the industrial
range of -40°C to+85°C.
Absolute Maximum Ratings
Supply Voltage
Clock input level
Junction temperature
Storage temperature range:
SP8782A
SP8782B
6V
2.5V p-p
+175°C
-55°C to +150°C
-55°C to +125°C
RATIO
SELECT
VCC
1
2
CLOCK INPUT 2
CLOCK INPUT 3
÷ 16/17
÷ 32/33
7 OUTPUT
4
5
VEE
MODULUS
CONTROL
INPUT
Figure 1 Functional Diagram
1
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