sy89423v Micrel Semiconductor, sy89423v Datasheet - Page 2

• Manufacturer Part Number: sy89423v
• Description: Sy89423v Dual High Performance Phase Locked Loop
• Manufacturer: Micrel Semiconductor

Micrel
M9999-091707
[e-mail] or [phone]
LOOP FILTER COMPONENT SELECTION
BLOCK DIAGRAM
F1X
RINA
FINA
FINA
RINA
RINB
RINB
FINB
FINB
R
(1, 2)
PHASE-FREQUENCY
PHASE-FREQUENCY
S5B
D
D
D
÷ P
DETECTOR
S1B
S2B
S3B
DETECTOR
S1A
S2A
C
(1, 2, 4, 8, 10, 12, 16, 20)
F2X
(2, 4, 8, 16)
F1B
F1A
FILTER
FILTER
LOOP
LOOP
÷ N
÷ N
A
B
F2A
F2B
VCO
VCO
2
C
R
S3A
1
0
S4B
0
1
÷ 2
÷ 2
M
M
U
X
U
X
= 1.0 F 10% (X7R dielectric)
= 560
10%
HFOUTA
HFOUTA
HFINA
HFINA
HFOUTB
HFOUTB
HFINB
HFINB
FOUTA
FOUTA
FOUTB
FOUTB
Precision Edge
SY89423V
®