STV0681
Detailed Chipset Specifications
7.5
DC characteristics
Table 11: STV0681 DC characteristics
Parameter
Description
CMOS input low voltage
Min.
Typ.
Max.
Units
V
V
V
V
V
V
V
0.35 VDD
V
V
V
V
V
V
V
II
CMOS input high voltage
0.65 VDD
IH
T+
T-
CMOS schmitt input low to high threshold voltage
CMOS schmitt input high to low threshold voltage
Threshold point
2.15
1.05
1.65
T
Output high voltage
2.4
OH
OL
Output low voltage
0.4
7.6
PLL characteristics
Table 12: STV0681 PLL characteristics
Parameter
Conditions
Symbol
Min.
Typ.
Max. Unit
Peak to peak jitters
Duty cycle
@VCOfreq = 240MHz - 312MHz
--
--
--
--
500
55
ps
%
V
45
50
3.3
Operating voltage range
Input low voltage
VDD
VIL
3
3.6
0.8
VDD
0.1
--
VDD=3.3V
VDD=3.3V
-
V
Input high voltage
Pull in Time + Locking Time
Output Slew Rate
VIH
0.7VDD
V
Ready
Tsr(Fout)
--
--
--
ms
ns
CL: Output Load (pF)
0.100+0.1082*CL
7.7
Crystal tolerance
Table 13: STV0681 crystal tolerance
Parameter
Min.
Typ.
Max.
Units
Crystal specification
Crystal frequency
50/50/10/30 (12mhz Fundamental)
12.000
MHz
ppm
ppm
°C
Frequency tolerance
Temperature stability
Operating temperature
50
50
-10
ADCS 7283313C
33/44
STMICROELECTRONICS [ ST ]
