SY89429A(1998) データシートの表示（PDF） - Micrel
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SY89429A Datasheet PDF : 9 Pages
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Micrel
BLOCK DIAGRAM
+5.0V
ClockWorks™
SY89429A
10-25MHz
Fundamental
Crystal
or
PECL
Source
FREF
÷8
OSC
PHASE DETECTOR
PLL
VCO
÷M
400 – 800
MHz
PECL
÷N
FOUT
3 WIRE
INTERFACE
SERIAL
INTERFACE
LOGIC
PARALLEL
CONFIG INFO
TEST
DETAILED BLOCK DIAGRAM
2
LOOP_FILTER
3
LOOP_REF
FREF
÷8
PHASE DETECTOR
10–25MHz
Fundamental
Crystal
or
PECL
Source
4
XTAL1
OSC
5
XTAL2
28
S_LOAD
7
P_LOAD
27
S_DATA
26
S_CLOCK
NOTE:
Pin numbers reference PLCC pinout.
9-BIT ÷ M
COUNTER
L = LATCH
H = Transparent
LATCH
01
9-BIT SR
8 -> 16
9
M[8:0]
+5.0V
1
VCC_QUIET
+5.0V
6, 21
VCC1
VCO
400-800
MHz
1
0
T110
÷N
(2,4,8,16)
VCC_OUT
LATCH
01
2-BIT SR
FOUT ÷ 4 — 7
S_CLOCK ÷ M — 6
LATCH LOW — 5
FOUT — 4
÷M— 3
FREF — 2
HIGH — 1
3-BIT SR
0
17,18
2
N[1:0]
19,22
2
+5.0V
25
24
FOUT
23
FOUT
20
TEST
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