si5351 Silicon Laboratories, si5351 Datasheet - Page 5

• Manufacturer Part Number: si5351
• Description: Si5350a Factory-programmable Cmos Clock Generator
• Manufacturer: Silicon Laboratories

Table 3. DC Characteristics
(V
Table 4. AC Characteristics
(V
Parameter
Core Supply Current
Output Buffer Supply Current
Input Current
Parameter
Power-up Time
Output Enable Time
Output Phase Offset
Spread Spectrum Frequency
Deviation
Spread Spectrum Modulation
Rate
VCXO Specifications (Si5351B only)
VCXO Control Voltage Range
VCXO Gain (configurable)
VCXO Control Voltage Linearity
VCXO Pull Range (configu-
rable)
VCXO Modulation Bandwidth
VCXO Period Jitter
VCXO Cycle-Cycle Jitter
VCXO RMS Phase Jitter
PLL Input Frequency Range
*Note: Contact Silicon Labs for 2.5 V VCXO operation.
DD
DD
= 2.5 V ±10%, or 3.3 V ±10%, T
= 2.5 V ±10%, or 3.3 V ±10%, T
A
A
= –40 to 85°C)
= –40 to 85°C)
Symbol
Symbol
SS
SS
P
f
I
I
T
CLKIN
CLKIN
KVL
DDOx
T
STEP
PR
I
I
Vc
Kv
RDY
DD
VC
OE
MOD
DEV
From OEB assertion to valid clock
Vc = 10–90% of V
output, C
From V
Power Down (PDN = V
Enabled 3 outputs
Enabled 8 outputs
CLKIN, SDA, SCL
put clock, C
Test Condition
Vc = 10–90% of V
Rev. 0.1
DD
Vin < 3.6 V
Test Condition
L
C
f
Center spread
Down spread
CLKn
V
= 15 pF, f
L
= V
DD
= 5 pF
VC
DDmin
= 3.3 V*
> 1 MHz
L
DD
= 15 pF,
CLKn
, V
to valid out-
DD
DD
DD
> 1 MHz
= 3.3 V
)
Min
—
—
—
—
—
—
–0.1
±0.1
Min
±40
30
30
–5
10
—
—
—
—
—
—
—
0
Si5351A/B/C
Typ
2.5
20
25
50
—
—
V
31.5
Typ
357
8.5
DD
10
60
—
—
—
—
—
50
—
1
0
/2
Max
26
38
10
30
—
4
±330
Max
–2.5
±1.5
18.5
V
250
110
100
10
10
33
+5
95
—
—
DD
ps/step
ps rms
ppm/V
Unit
ps pk-
mA
mA
mA
MHz
µA
µA
µA
Unit
ppm
kHz
kHz
ms
µs
ps
pk
%
%
%
V
5