Crystal oscillator
Product Number (please contact us)
Programmable Voltage Controlled Oscillator (VCXO)
X1G004541xxxx00
Output: LV-PECL
VG7050EAN
Frequency range : 50 MHz to 800 MHz
-9
(Tuning resolution: 2.2 ~ 2.8 x10 )
Supply voltage : 2.5 V / 3.3 V
External dimensions : 7.0 5.0 1.5 mm (8 pins)
-6
Absolute Pull Range : 0 to 180 x 10 (12 steps selectable)
Features
2
User-specified one startup frequency, APR and 7-bit I C address
2
Actual size
User Programming : I C Interface
Low jitter PLL technology
Applications
SONET/SDH, OTN, GbE, Fibre Channel
Specifications (characteristics)
Item Symbol Specifications Conditions / Remarks
2
Output frequency range f0 50 MHz to 800 MHz It can be changed by I C
Supply voltage V D: 2.5 V 0.125 V, C: 3.3 V 0.33 V
CC
Storage temperature T_stg -55 C to +125 C Store as bare product after packing
Operating temperature T_use -40 C to +85 C
-6
Frequency tolerance *1 f_tol 50 10 Includes frequency aging (10 years)
Current consumption I 90 mA Max. OE Active, L_ECL=50
CC
40 mA Max. OE Inactive, Output Standby: Hi-Z mode
Disable current I_dis
70 mA Max. OE Inactive, Output Standby: Fix mode
-6
0 to 180 x10 VC = 1.65 V 1.35 V (VCC = 3.3 V)
Absolute pull range APR
-6
0 to 180 x10 VC = 1.25 V 1.00 V (VCC = 2.5 V)
Control voltage tuning range VC 0 to VCC
Frequency change polarity - Positive slope
Symmetry SYM 45 % to 55 % At outputs crossing point
V VCC-1.025 V Min.
OH
Output voltage DC characteristics
V VCC-1.62 V Max.
OL
Output load condition L_ECL 50 Termination to VCC - 2.0 V
V 70% VCC Min.
IH
Input voltage
OE, SDA and SCL
V 30% VCC Max.
IL
Rise time / Fall time tr/tf 400 ps Max. Between 20% and 80% of (VOH-VOL)
Start-up time t_str 10 ms Max. Time at minimum supply voltage to be 0 s
*1 Frequency tolerance includes initial frequency tolerance, temperature variation, supply voltage change, reflow drift and 10 years aging at +25 C.
Product name VG7050 EAN SM18xxxx C J G H P Z
(Standard form)
Model
Output (E: LV-PECL)
Parameter Designator (VG7050EAN: SM18xxxx)
Supply voltage (C: 3.3 V Typ., D: 2.5 V Typ.)
-6
Frequency tolerance (J: 50 10 )
Operating temperature (G: -40 ~ +85C)
OE Function (H: Active High, L: Active Low)
Absolute Pull Range (P: Programmable)
Output Standby Type (F: Fix (OUT=L, OUTN=H), Z: High-Z)
Phase Jitter
Offset Frequency 125.00 MHz 156.25 MHz 250.00 MHz 425.00 MHz 622.08 MHz 669.33 MHz 794.73 MHz
12 kHz to 20 MHz 0.30 ps 0.26 ps 0.26 ps 0.25 ps 0.26 ps 0.26 ps 0.26 ps
Phase jitter*2
20 kHz to 50 MHz 0.30 ps 0.27 ps 0.27 ps 0.26 ps 0.27 ps 0.27 ps 0.27 ps
Typ.
50 kHz to 80 MHz 0.29 ps 0.27 ps 0.27 ps 0.26 ps 0.27 ps 0.27 ps 0.27 ps
*2 In order to achieve optimum jitter performance, it is recommended that the capacitor (0.1 F + 10 F) between V and GND pin should be placed as close to the V pin
CC CC
as possible.
Crystal oscillator
Block diagram
OE Function / OE Standby Type
Frequency output Oscillator Stop
OE Function OE Standby Type
OE pin
OE pin OUT,OUTN state
H: High Active H or OPEN L
Z: High-Z High Impedance
L: Low Active L or OPEN H
H: High Active H or OPEN L
F: Fix OUT=L, OUTN=H
L: Low Active L or OPEN H
External dimensions (Unit: mm) Footprint (Recommended) (Unit: mm)
E SM180001
CHZ3XFC
Pin Connection
In order to achieve optimum jitter performance, it is
recommended that the capacitor (0.1 F + 10 F)
1 Vc between VCC and GND pin should be placed as close to
the VCC pin as possible.
2 OE
3 GND
4 OUT
5 OUTN
6 Vcc
7 SDA
8 SCL