Micrel
FREQUENCY SELECTION TABLE
FREQSEL1
0
0
0
0
1
1
1
1
FREQSEL2
0
0
1
1
0
0
1
1
FREQSEL3
0
1
0
1
0
1
0
1
SY87701L
fVCO/fRCLK
1
2
4
6
8
12
16
24
fRCLK Data Rates (Mbps)
750 – 1250
375 – 625
188 – 313
125 – 208
94 – 157
63 – 104
47 – 78
32 – 52
REFERENCE FREQUENCY SELECTION
ABSOLUTE MAXIMUM RATINGS(1, 2)
DIVSEL1
0
0
1
1
DIVSEL2
0
1
0
1
fRCLK/fREFCLK
8
10
16
20
LOOP FILTER COMPONENTS(1)
R5
C3
PLLSP
PLLSN
SONET
R5 = 80Ω
C3 = 1.5µF (X7R Dielectric)
Wide Range
R5 = 350Ω
C3 = 0.47µF (X7R Dielectric)
Symbol
Rating
Value
Unit
VCC
VI
IOUT
Tstore
TA
θJA
Power Supply
Input Voltage
Output Current
–Continuous
–Surge
Storage Temperature
Operating Temperature
Thermal Resistance
@still air
–0.5 to +7.0
–0.5 to VCC
50
100
–65 to +150
–40 to +85
80 single
layer board,
46 multi-layer
V
V
mA
°C
°C
°C/W
NOTES:
1. Permanent device damage may occur if ABSOLUTE MAXIMUM RATINGS
are exceeded. This is a stress rating only and functional operation is not
implied at conditions other than those detailed in the operational sections
of this data sheet. Exposure to ABSOLUTE MAXIMUM RATING conditions
for extended periods may affect device reliability.
2. Airflow of 500LFPM recommended.
R6
C4
PLLRP
PLLRN
SONET
R6 = 50Ω
C4 = 1.0µF (X7R Dielectric)
Wide Range
R6 = 680Ω
C4 = 0.47µF (X7R Dielectric)
NOTE:
1. Suggested Values. Values may vary for different applications.
5