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SiT9121 Schematic ( PDF Datasheet ) - SiTime

Teilenummer SiT9121
Beschreibung 1-220 MHz High Performance Differential Oscillator
Hersteller SiTime
Logo SiTime Logo 




Gesamt 8 Seiten
SiT9121 Datasheet, Funktion
SiT9121
1-220 MHz High Performance Differential Oscillator
The Smart Timing Choice
Features
Any frequency between 1 MHz and 220 MHz accurate to 6 decimal
places
LVPECL and LVDS output signaling types
0.6ps RMS phase jitter (random) over 12 kHz to 20 MHz bandwidth
Frequency stability as low as ±10 ppm
Industrial and extended commercial temperature ranges
Industry-standard packages: 3.2x2.5, 5.0x3.2 and 7.0x5.0 mmxmm
For frequencies higher than 220 MHz, refer to SiT9122 datasheet
Applications
10GB Ethernet, SONET, SATA, SAS, Fibre Channel,
PCI-Express
Telecom, networking, instrumentation, storage, servers
Electrical Characteristics
Parameter and Conditions
Supply Voltage
Output Frequency Range
Frequency Stability
First Year Aging
10-year Aging
Operating TemperatureRange
Input Voltage High
Input Voltage Low
Input Pull-up Impedance
Start-up Time
Symbol
Min.
Typ.
Max.
Unit
Condition
LVPECL and LVDS, Common Electrical Characteristics
Vdd 2.97 3.3 3.63
V
2.25 2.5 2.75
V
2.25 – 3.63 V Termination schemes in Figures 1 and 2 - XX ordering code
f 1 – 220 MHz
F_stab
-10
+10 ppm
-20 – +20 ppm Inclusive of initial tolerance, operating temperature, rated power
-25 – +25 ppm supply voltage, and load variations
-50 – +50 ppm
F_aging1
-2
+2 ppm 25°C
F_aging10
-5
+5 ppm 25°C
T_use
-40
+85 °C Industrial
-20 – +70 °C Extended Commercial
VIH 70%
– Vdd Pin 1, OE or ST
VIL
30%
Vdd Pin 1, OE or ST
Z_in – 100 250 Pin 1, OE logic high or logic low, or ST logic high
T_start
2
– – Pin 1, ST logic low
6 10 ms Measured from the time Vdd reaches its rated minimum value.
Resume Time
Duty Cycle
T_resume
DC
Current Consumption
OE Disable Supply Current
Output Disable Leakage Current
Standby Current
Maximum Output Current
Output High Voltage
Output Low Voltage
Output Differential Voltage Swing
Rise/Fall Time
OE Enable/Disable Time
RMS Period Jitter
Idd
I_OE
I_leak
I_std
I_driver
VOH
VOL
V_Swing
Tr, Tf
T_oe
T_jitt
RMS Phase Jitter (random)
T_phj
Current Consumption
OE Disable Supply Current
Differential Output Voltage
Idd
I_OE
VOD
In Standby mode, measured from the time ST pin
– 6 10 ms crosses 50% threshold.
45 – 55 % Contact SiTime for tighter dutycycle
LVPECL, DC and AC Characteristics
– 61 69 mA Excluding Load Termination Current, Vdd = 3.3V or 2.5V
– – 35 mA OE = Low
– – 1 µA OE = Low
– – 100 µA ST = Low, for all Vdds
– – 30 mA Maximum average current drawn from OUT+ or OUT-
Vdd-1.1 – Vdd-0.7 V See Figure 1(a)
Vdd-1.9 – Vdd-1.5 V See Figure 1(a)
1.2 1.6 2.0
V See Figure 1(b)
300 700
ps 20% to 80%, see Figure 1(a)
– – 115 ns f = 212.5 MHz - For other frequencies, T_oe = 100ns + 3 period
– 1.2 1.7 ps f = 100 MHz, VDD = 3.3V or 2.5V
– 1.2 1.7 ps f = 156.25 MHz, VDD = 3.3V or 2.5V
– 1.2 1.7 ps f = 212.5 MHz, VDD = 3.3V or 2.5V
0.6
0.85
ps
f = 156.25 MHz, Integration bandwidth = 12 kHz to 20 MHz, all
Vdds
LVDS, DC and AC Characteristics
– 47 55 mA Excluding Load Termination Current, Vdd = 3.3V or 2.5V
– – 35 mA OE = Low
250 350 450 mV See Figure 2
SiTime Corporation
Rev. 1.07
990 Almanor Avenue, Sunnyvale, CA 94085
(408) 328-4400
www.sitime.com
Revised January 4, 2016






SiT9121 Datasheet, Funktion
SiT9121
1-220 MHz High Performance Differential Oscillator
The Smart Timing Choice
Dimensions and Patterns
Package Size – Dimensions (Unit: mm)[1]
3.2 x 2.5x 0.75 mm
Recommended Land Pattern (Unit: mm)[2]
3.2±0.05
#6 #5
#4
2.20
#4 #5
#6
2.25
YXXXX
#1 #2
#3
0.75±0.05
#3 #2
#1
0.6
0.65 1.05
5.0 x 3.2 x 0.75 mm
#6 #5
#4
#4 #5
#6
YXXXX
#1 #2
#3
0.75±0.05
#3 #2
#1
7.0 x 5.0x 0.90 mm
7.0±0.10
#6 #5 #4
5.08
#4 #5
#6
5.08
YXXXX
#1 #2
#3
#3 #2
#1
1.40
1.60
Notes:
1. Top Marking: Y denotes manufacturing origin and XXXX denotes manufacturing lot number. The value of “Y” will depend on the assembly location of the device.
2. A capacitor of value 0.1 µF between Vdd and GND is recommended.
Rev. 1.07
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