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MPC992 Datasheet(PDF) 2 Page - Motorola, Inc

Part No. MPC992
Description  LOW VOLTAGE PLL CLOCK DRIVER
Download  8 Pages
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Maker  MOTOROLA [Motorola, Inc]
Homepage  http://www.freescale.com
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MPC992 Datasheet(HTML) 2 Page - Motorola, Inc

   
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MPC992
MOTOROLA
TIMING SOLUTIONS
BR1333 — REV 5
2
Qb1
Qb2
Qa1
Qa1
Qa0
GNDA
VCCA
VCCI
Qb0
Qb1
Qb2
PLL_EN
GNDI
25
26
27
28
29
30
31
32
15
14
13
12
11
10
9
12
345678
24
23
22
21
20
19
18
17
16
MPC992
Reset
Qa0
Qb0
FUNCTION TABLE 1
FSEL0
FSEL1
Qa
Qb
Feedback
Ratio
0
0
1
1
0
1
0
1
VCO/4
VCO/2
VCO/4
VCO/2
VCO/6
VCO/4
VCO/10
VCO/6
VCO/24
VCO/16
VCO/40
VCO/24
3:2
2:1
5:2
3:1
INPUT vs OUTPUT FREQUENCY
FSEL0
FSEL1
Qa
Qb
Int Feedback
0
0
1
1
0
1
0
1
6 (fref)
8 (fref)
10 (fref)
12 (fref)
4 (fref)
4 (fref)
4 (fref)
4 (fref)
fref
fref
fref
fref
FUNCTION TABLE 2
Control Signal
Logic ‘0’
Logic ‘1’
Reset
Outputs Enabled
Outputs Disabled
XTAL_SEL
PECL REF
XTAL REF
PLL_EN
Disabled
Enabled
VCO_SEL
High Frequency
Low Frequency
PIN DESCRIPTION
Pin Name
Function
VCO_SEL
VCO range select pin (Int Pullup)
PLL_EN
PLL bypass select pin (Int Pullup)
XTAL_SEL
Input reference source select pin (Int Pullup)
XTAL1:2
Crystal interface pins for the internal oscillator
PECL_CLK
True PECL reference clock input (Int Pulldown)
PECL_CLK
Compliment PECL reference clock input
(Int Pullup)
FSELn
Internal divider select pins (Int Pullup)
RESET
Internal flip–flop reset, true outputs go LOW
(Int Pulldown)


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