Temperature Compensated Crystal Oscillators
TCXO
MQF _
T
CMOS
Features
[ TCXO " M " and VCTCXO " VM " ]
VCTCXO
Min.
Max.
1,500
MHz
MQF _
P
PECL
MQF _
D
LVDS
VMQF _
T
CMOS
VMQF _
P
PECL
VMQF _
D
LVDS
10
MHz
1.0 pS Phase Jitter ( typical )
The (V)MQF326T , (V)MQF326P and (V)MQF326D Series are members of Mercury’s Q-Family Quick-Turn
Temperature Compensated oscillators that can be delivered within days. With low current consumption
(44 mA for PECL 212.500 MHz at 3.3V) and an integrated phase jitter performance of 1.0 pS RMS,
they have gained its precision frequency control market position by providing engineers with next-day
samples for prototypes and low cost, fast delivery for volume production ( ± 2.5 ppm over -30°C to +85°C ) .
General specifications , at Ta=+25°C
Model
Output Logic
Supply Voltage V
DD
( code )
Available Frequency Range
Load
Output Logic " High " , " 1 "
Output Logic " Low " , " 0 "
( V
DD
= + 2.5V )
Current Consumption
All values are typical and over the
operating temperatures.
(V)MQF326T
CMOS
+ 2.5 V
DD
± 5% ( voltage code " 25 " )
+ 3.3 V
DD
± 5% ( voltage code " 33 " )
10 ~ 250 MHz
15 pF
90 % V
DD
10 % V
DD
50 MHz : 24 mA
125 MHz : 28 mA
200 MHz : 30 mA
-----
50 MHz : 26 mA
125 MHz : 30mA
200 MHz : 34 mA
-----
18 mA
( typical )
1.5 nS. ( Typical ) , 3.0 nS. ( max. )
Tr / Tf : 10%
↔
90% waveform
±1.0 ppm. max. at +25°C±2°C. ( at the shipment )
(V)MQF326P
PECL
+ 2.5 V
DD
± 5% ( voltage code " 25 " )
+ 3.3 V
DD
± 5% ( voltage code " 33 " )
10 ~ 1,500 MHz
50 Ω into Vcc - 2V or Thevenin equiralent
V
DD
-
1.03 ( min.) , V
DD
- 0.6 ( max.)
V
DD
-
1.85 ( min.) , V
DD
- 1.6 ( max.)
156 MHz : 36 mA
600 MHz : 40 mA
800 MHz : 46 mA
1,000 MHz : 50 mA
156 MHz : 40 mA
600 MHz : 45 mA
800 MHz : 48 mA
1,000 MHz : 52 mA
18 mA
( typical )
0.2 nS. ( Typical ) , 0.5 nS. ( max. )
Tr / Tf : 20%
↔
80% waveform
(V)MQF326D
LVDS
+ 2.5 V
DD
± 5% ( voltage code " 25 " )
+ 3.3 V
DD
± 5% ( voltage code " 33 " )
10 ~ 1,500 MHz
100 Ω
1.4 V Typical , 1.6 V max.
1.1 V Typical , 0.9 V min.
156 MHz : 22 mA
600 MHz : 28 mA
800 MHz : 30 mA
1,000 MHz : 34 mA
156 MHz : 25 mA
600 MHz : 30 mA
800 MHz : 32 mA
1,000 MHz : 36 mA
18 mA
( typical )
0.2 nS. ( Typical ) , 0.4 nS. ( max. )
Tr / Tf : 20%
↔
80% waveform
( V
DD
= + 3.3V )
Current Consumption
All values are typical and over the
operating temperatures.
Current with Output Disabled
Rise Time / Fall Time
Initial Calibration Tolerance
± 2.5 ppm over -30°C to +85°C ( default for Quick - Turn )
Temperature ( refer to +25°C)
± 1.0 ppm over -40°C to +85°C ( available )
Aging
Frequency Stability Codes
Voltage Change
Load Change
Reflow
Duty Cycle
Start-up Time
Aging at Ta = +25°C
Storage Temperature
50 % ± 5%
5 m sec. ( max.)
± 2 ppm max. first year at 25°C ; ± 10 ppm max. over 10 years
-55°C to + 150°C
Offset
SSB Phase Noise
[ dBc / Hz ( typical ) ]
156.25 MHz
212.5 MHz
622.08 MHz
10 Hz
-65
-61
-51
100 Hz
-92
-90
-79
1K Hz
-108
-106
-97
10K Hz
-114
-110
-102
100K Hz
-117
-112
-103
1M Hz
-139
-133
-125
10M Hz
-147
-142
-134
Phase Jitter ( 12KHz ~ 20 MHz )
0.9 pS
1.2 pS
1.1 pS
± 0.2 ppm max . , for a ±5% input voltage change.
± 0.2 ppm max . , for a ±10% load condition change.
± 1.0 ppm max . , 1 reflow and measured 24 hours afterwards.
± 1.0 ppm max . , per year at 25°C
Control Voltage Function on Pad 1
Control Voltage Center and Range +1.5V ± 1.0V for both V
DD
= 2.5V and 3.3V
Frequency Pulling Range
Linearity
Transfer Function
Input Impedance
Harmonics
± 8 ppm min.
OE Control
± 1 % typical. ± 10% max.
Output Enable Function on pad 2
70% of V
DD
(min.) to enable output.
(Open connection prohibit.)
30% of V
DD
(max.) to disable output.
Positive Transfer
770 KΩ typical.
-5.0 dBc max.
Output Enable / Disable Time
200 nS. Max. / 50 nS. Max.
Mercury
www.mercury-crystal.com
■Taiwan
: Tel: (886)-2-2406-2779 / sales-tw@mercury-crystal.com
■China : Tel: (86)-512-5763-8100 / sales-cn@mercury-crystal.com
■USA : Tel: (1)-909-466-0427 / sales-us@mercury-crystal.com
87
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Temperature Compensated Crystal Oscillators
TCXO
MQF _
T
CMOS
Part Number Format and Example
Example : VMQF326D33 - 622.080 - 2.0 / -40+85
VMQF
Hold Type
" MQF "
: TCXO
326
Package
" 326 "
( 3.2 * 2.5 mm )
D
T : CMOS
P : PECL
D : LVDS
33
Supply Voltage
" 33 " for 3.3V
" 25 " for 2.5V
-
[
TCXO " M " and VCTCXO " VM " ]
VCTCXO
Min.
VMQF _
D
LVDS
Max.
1,500
MHz
MQF _
P
PECL
MQF _
D
LVDS
VMQF _
T
CMOS
VMQF _
P
PECL
10
MHz
622.080
-
2.0
/
-40+85
Operating
Center Freq. ( MHz )
Freq. Stability
(ppm)
Temperature
Range(℃)
" VMQF " :
VCTCXO
Outline Dimensions ( Unit : mm ) , Suggested pad Layout for SMDs
[ MQF326T ] , [ MQF326P ] , [ MQF326D ]
Test Circuits and Output Waveforms
CMOS
PECL
LVDS
Mercury
www.mercury-crystal.com
■Taiwan
: Tel: (886)-2-2406-2779 / sales-tw@mercury-crystal.com
■China : Tel: (86)-512-5763-8100 / sales-cn@mercury-crystal.com
■USA : Tel: (1)-909-466-0427 / sales-us@mercury-crystal.com
88
A2
51单片机
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