sl15300 SpectraLinear Inc, sl15300 Datasheet - Page 8

• Manufacturer Part Number: sl15300
• Description: Programmable Spread Spectrum Clock Generator Sscg
• Manufacturer: SpectraLinear Inc

Output Rise/Fall Time
Output Rise/Fall Time
Output Rise/Fall Time
Cycle-to-Cycle Jitter
(SSCLK – Pins 4/6/7/8 )
Cycle-to-Cycle Jitter
(SSCLK – Pins 4/6/7/8)
Power-down Time
Power-up Time
(Crystal or Clock)
Power Supply Ramp
Time
Output Enable Time
Output Disable Time
Spread Percent Range
Spread Percent Range
Spread Percent Variation
Modulation Frequency
DC Electrical Characteristics (I-Grade)
Unless otherwise stated VDD= 3.3V+/- 10%, CL=15pF and Ambient Temperature range -40 to +85 Deg C
Operating Voltage
Input Low Voltage
Input High Voltage
Output High Voltage
Output Low Voltage
Rev 1.0, August 14, 2008
Description
SPR-1
SPR-2
FMOD
ΔSS%
CCJ1
CCJ2
tPSR
tr/f5
tr/f6
tr/f7
tPD
tPU
tOE
tOD
Symbol
VOH1
VOL1
VDD
VIH
VIL
Programmable, VDD=2.5
Programmable, VDD=2.5
Programmable, VDD=2.5
FIN=30MHz, all 4 clocks are at
33MHz, +/-2.0% Spread. CL=15pF
FIN=30MHz, all 4 clocks are at
33MHz, +/-2.0% Spread. CL=15pF
Time from PD# falling edge to Hi-Z
at outputs (Asynchronous)
Time from PD# rising edge to valid
frequency at outputs
(Asynchronous)
Time for VDD reaching minimum
specified value and monolithic
power supply ramp
Time from OE falling edge to Hi-Z at
outputs (Asynchronous)
Time from OE falling edge to Hi-Z at
outputs (Asynchronous)
Center Spread, SSCLK-1/2/3/4
Down Spread, SSCLK-1/2/3/4
Variation of programmed Spread %
Programmable, 31.5 kHz standard
CL=15pF, 20 to 80% of VDD
CL=15pF, 20 to 80% of VDD
CL=15pF, 20 to 80% of VDD
VDD+/-10%
CMOS Level, if Pins 4 and 8
programmed as PD#, OE,
SSON# or FS
CMOS Level, if Pins 4 and 8
programmed as PD#, OE,
SSON# or FS.
IOH=10mA , If Pins 4, 6, 7 and
8 are programmed as
SSCLK/REFCLK
IOL=10mA, If Pins 4, 6, 7 and 8
are programmed as
SSCLK/REFCLK
Condition
VDD-0.5
+/-0.125
0.7VDD
2.97
-5.0
Min
-15
25
0
-
-
-
-
-
-
-
-
-
-
-
1.10
0.90
0.70
TBD
TBD
31.5
150
180
180
3.5
3.3
Typ
-
-
-
-
-
-
-
-
SL15300
+/-2.5
0.3VDD
-0.25
1.35
1.10
0.85
TBD
TBD
350
350
350
120
5.0
12
15
VDD
3.63
Max
0.5
Page 8 of 16
-
kHz
ms
ms
ns
ns
ns
ps
ps
ns
ns
ns
%
%
%
Unit
V
V
V
V
V