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8N0DV85BA-0161CDI

型号：

8N0DV85BA-0161CDI

品牌：

IDT[ INTEGRATED DEVICE TECHNOLOGY ]

页数：

16 页

PDF大小：

872 K

下载PDF手册
LVCMOS Dual-Frequency Programmable  
VCXO  
IDT8N0DV85  
DATA SHEET  
General Description  
Features  
The IDT8N0DV85 is a LVCMOS Dual-Frequency Programmable  
VCXO with very flexible frequency and pull-range programming  
capabilities. The device uses IDT’s fourth generation FemtoClock®  
NG technology for an optimum of high clock frequency and low  
phase noise performance. The device accepts 2.5V or 3.3V supply  
and is packaged in a small, lead-free (RoHS 6) 6-lead ceramic 5mm  
x 7mm x 1.55mm package.  
• Fourth generation FemtoClock® NG technology  
• Programmable clock output frequency from 15.476MHz to  
260MHz  
• Two factory-programmed output frequencies  
• Frequency programming resolution is 218Hz and better  
• Absolute pull-range (APR) programmable from 4.5 to  
754.5ppm  
The device can be factory-programmed to any two frequencies in the  
range of 15.476MHz to 260MHz to the very high degree of frequency  
precision of 218Hz or better. The output frequency is selected by the  
FSEL pin. The extended temperature range supports wireless  
infrastructure, telecommunication and networking end equipment  
requirements.  
• One 2.5V or 3.3V LVCMOS clock output  
• RMS phase jitter @ 156.25MHz (12kHz - 20MHz): 0.65ps (typical)  
• RMS phase jitter @ 156.25MHz (1kHz - 40MHz): 0.94ps (typical)  
• 2.5V or 3.3V supply voltage  
• -40°C to 85°C ambient operating temperature  
• Lead-free (RoHS 6) 6-lead ceramic 5mm x 7mm x 1.55mm  
package  
Block Diagram  
Pin Assignment  
VC 1  
FSEL 2  
GND 3  
FemtoClock® NG  
VCO  
1950-2600MHz  
6 V  
CC  
PFD  
&
LPF  
÷P  
OSC  
114.285 MHz  
÷N  
Q
5 DNU  
4 Q  
2
÷MINT, MFRAC  
IDT8N0DV85  
6-lead ceramic 5mm x 7mm x 1.55mm  
package body  
A/D  
VC  
9
7
25  
CD Package  
Top View  
Configuration Register (ROM)  
(Frequency, Pull range, Polarity)  
Pulldown  
FSEL  
IDT8N0DV85ACD REVISION A AUGUST 14, 2012  
1
©2012 Integrated Device Technology, Inc.  
IDT8N0DV85 Data Sheet  
LVCMOS Dual-Frequency Programmable VCXO  
Pin Description and Characteristic Tables  
Table 1. Pin Descriptions  
Number  
Name  
VC  
Type  
Description  
1
2
3
4
Input  
Input  
VCXO Control Voltage input.  
FSEL  
GND  
PulldownNOTE1  
Frequency select pin. See Table 3B for function. LVCMOS/LVTTL interface levels.  
Power supply pin.  
Power  
Output  
Clock output. LVCMOS interface levels.  
Q
5
6
Do not use.  
DNU  
VCC  
Power  
Power supply pin.  
NOTE 1.Pulldown refers to internal input resistors. See Table 2, Pin Characteristics, for typical values  
Table 2. Pin Characteristics  
Symbol  
Parameter  
Test Conditions  
Minimum  
Typical  
5.5  
10  
Maximum  
Units  
pF  
FSEL  
VC  
CIN  
Input Capacitance  
pF  
CPD  
Power Dissipation Capacitance  
Input Pulldown Resistor  
VCC = 3.465V or 2.625V  
8
pF  
RPULLDOWN  
50  
kΩ  
Ω
VCC = 3.3V  
14  
ROUT  
Output Impedance  
Q
VCC = 2.5V  
17  
Ω
Function Tables  
Table 3A. Output Frequency  
15.476MHz to 260MHz  
NOTE. Supported output frequency range. The output frequency can be programmed to any frequency in this range and to a precision of  
218Hz.  
IDT8N0DV85ACD REVISION A AUGUST 14, 2012  
2
©2012 Integrated Device Technology, Inc.  
IDT8N0DV85 Data Sheet  
LVCMOS Dual-Frequency Programmable VCXO  
Principles of Operation  
Frequency Configuration  
The block diagram consists of the internal 3RD overtone crystal and  
oscillator which provide the reference clock fXTAL of 114.285MHz.  
The PLL includes the FemtoClock NG VCO along with the  
Pre-divider (P), the feedback divider (M) and the post divider (N). The  
P, M, and N dividers determine the output frequency based on the  
fXTAL reference. The feedback divider is fractional supporting a huge  
number of output frequencies. Internal registers are used to hold up  
to two different factory pre-set configuration settings. The  
configuration is selected via the FSEL pin. Changing the FSEL  
control results in an immediate change of the output frequency to the  
selected register values. The P, M, and N frequency configurations  
support an output frequency range 15.476MHz to 260MHz.  
An order code is assigned to each frequency configuration and the  
VCXO pull-range programmed by the factory (default frequencies).  
For more information on the available default frequencies and order  
codes, please see the Ordering Information Section in this document.  
For available order codes, see the FemtoClock NG Ceramic-Package  
XO and VCXO Ordering Product Information document.  
For more information on programming capabilities of the device for  
custom frequency and pull-range configurations, see the FemtoClock  
NG Ceramic 5x7 Module Programming Guide.  
The devices use the fractional feedback divider with a delta-sigma  
modulator for noise shaping and robust frequency synthesis  
capability. The relatively high reference frequency minimizes phase  
noise generated by frequency multiplication and allows more efficient  
shaping of noise by the delta-sigma modulator. The output frequency  
is determined by the 2-bit pre-divider (P), the feedback divider (M)  
and the 7-bit post divider (N). The feedback divider (M) consists of  
both a 7-bit integer portion (MINT) and an 18-bit fractional portion  
(MFRAC) and provides the means for high-resolution frequency  
generation. The output frequency fOUT is calculated by:  
Table 3B. Frequency Selection  
Input  
FSEL  
0 (default)  
1
Selects  
Frequency 0  
Frequency 1  
1
MFRAC + 0.5  
------------  
f
= f  
⋅
⋅ MINT + ------------------------------------- (1)  
OUT  
XTAL  
P ⋅ N  
18  
2
IDT8N0DV85ACD REVISION A AUGUST 14, 2012  
3
©2012 Integrated Device Technology, Inc.  
IDT8N0DV85 Data Sheet  
LVCMOS Dual-Frequency Programmable VCXO  
Absolute Maximum Ratings  
NOTE: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These ratings are stress  
specifications only. Functional operation of product at these conditions or any conditions beyond those listed in the DC Characteristics or AC  
Characteristics is not implied. Exposure to absolute maximum rating conditions for  
extended periods may affect product reliability.  
Item  
Rating  
Supply Voltage, VCC  
Inputs, VI  
3.63V  
-0.5V to VCC + 0.5V  
-0.5V to VCC + 0.5V  
49.4°C/W (0 mps)  
-65°C to 150°C  
Outputs, VO  
Package Thermal Impedance, θJA  
Storage Temperature, TSTG  
DC Electrical Characteristics  
Table 4A. Power Supply DC Characteristics, VCC = 3.3V 5ꢀ, TA = -40°C to 85°C  
Symbol  
VCC  
Parameter  
Test Conditions  
Minimum  
Typical  
3.3  
Maximum  
3.465  
Units  
V
Power Supply Voltage  
Power Supply Current  
3.135  
ICC  
135  
163  
mA  
Table 4B. Power Supply DC Characteristics, VCC = 2.5V 5ꢀ, TA = -40°C to 85°C  
Symbol  
VCC  
Parameter  
Test Conditions  
Minimum  
Typical  
2.5  
Maximum  
2.625  
Units  
V
Power Supply Voltage  
Power Supply Current  
2.375  
ICC  
124  
148  
mA  
Table 4C. LVCMOS/LVTTL DC Characteristic, VCC = 3.3V 5ꢀ or VCC = 2.5V 5ꢀ, TA = -40°C to 85°C  
Symbol  
Parameter  
Test Conditions  
Minimum  
Typical  
Maximum  
VCC + 0.3  
VCC + 0.3  
0.8  
Units  
V
V
CC = 3.3V  
CC = 2.5V  
2
VIH  
Input High Voltage  
V
1.7  
-0.3  
-0.3  
V
VCC = VIN = 3.465V  
CC = VIN = 2.5V  
V
VIL  
Input Low Voltage  
V
0.7  
V
IIH  
IIL  
Input High Current  
Input Low Current  
FSEL  
FSEL  
VCC = VIN = 3.465V or 2.625V  
150  
µA  
µA  
V
VCC = 3.465V or 2.625V, VIN = 0V  
-5  
VCC = 3.465V  
2.6  
1.8  
VOH  
VOL  
Output High Voltage  
Output Low Voltage  
Q
Q
VCC = 2.625V  
V
VCC = 3.465V or 2.625V  
0.6  
V
IDT8N0DV85ACD REVISION A AUGUST 14, 2012  
4
©2012 Integrated Device Technology, Inc.  
IDT8N0DV85 Data Sheet  
LVCMOS Dual-Frequency Programmable VCXO  
AC Electrical Characteristics  
Table 5A. VCXO Control Voltage Input (V ) Characterisitics, VCC = 3.3V 5ꢀ or 2.5V 5ꢀ, TA = -40°C to 85°C  
C
Symbol Parameter  
Test Conditions  
Minimum  
Typical  
Maximum  
Units  
ppm/V  
ppm/V  
ppm/V  
ppm/V  
ppm/V  
ppm/V  
ppm/V  
ppm/V  
ppm/V  
ppm/V  
%
ADC_GAIN[5:0] = 000001  
ADC_GAIN[5:0] = 000010  
ADC_GAIN[5:0] = XXXXXX  
ADC_GAIN[5:0] = 111110  
ADC_GAIN[5:0] = 111111  
ADC_GAIN[5:0] = 000001  
ADC_GAIN[5:0] = 000010  
ADC_GAIN[5:0] = XXXXXX  
ADC_GAIN[5:0] = 111110  
ADC_GAIN[5:0] = 111111  
BSL Variation; NOTE 4  
7.57  
15.15  
Oscillator Gain, NOTE 1, 2, 3  
VCC = 3.3V  
25 · ADC_GAIN ÷ VCC  
469.69  
477.27  
KV  
10  
20  
Oscillator Gain, NOTE 1, 2, 3  
VCC = 2.5V  
25 · ADC_GAIN ÷ VCC  
620  
630  
0.1  
LVC  
Control Voltage Linearity  
Modulation Bandwidth  
VC Input Resistance  
-1  
+1  
BW  
100  
kHz  
RVC  
500  
kΩ  
VCNOM  
Nominal Control Voltage  
VCC÷2  
V
Control Voltage Tuning  
Range; NOTE 4  
VC  
0
VCC  
V
NOTE: Electrical parameters are guaranteed over the specified ambient operating temperature range, which is established when the  
device is mounted in a test socket with maintained transverse airflow greater than 500lfpm. The device will meet specifications after  
thermal equilibrium has been reached under these conditions.  
NOTE 1: VC = 10% to 90% of VCC  
.
NOTE 2: Nominal oscillator gain: Pull range divided by the control voltage tuning range of 3.3V.  
E.g. for ADC_GAIN[6:0] = 000001 the pull range is 12.5ppm, resulting in an oscillator gain of 25ppm ÷ 3.3V = 7.57ppm/V.  
NOTE 3: For best phase noise performance, use the lowest KV that meets the requirements of the application.  
NOTE 4: BSL = Best Straight Line Fit: Variation of the output frequency vs. control voltage VC, in percent. VC ranges from 10% to 90% VCC  
.
IDT8N0DV85ACD REVISION A AUGUST 14, 2012  
5
©2012 Integrated Device Technology, Inc.  
IDT8N0DV85 Data Sheet  
LVCMOS Dual-Frequency Programmable VCXO  
Table 5B. AC Characterisitics, VCC = 3.3V 5ꢀ or 2.5V 5ꢀ, TA = -40°C to 85°C  
Symbol  
fOUT  
fI  
Parameter  
Test Conditions  
Minimum Typical Maximum  
Units  
MHz  
ppm  
ppm  
ppm  
ppm  
ppm  
ppm  
ppm  
ppm  
ppm  
ps  
Output Frequency Q  
Initial Accuracy  
15.476  
260  
10  
100  
50  
20  
3
Measured at 25°C  
Option Code = A or B  
fS  
fA  
fT  
Temperature Stability  
Aging  
Option Code = E or F  
Option Code = K or L  
Frequency drift over 10 year life  
Frequency drift over 15 year life  
Option Code A or B (10 year life time)  
Option Code E or F (10 year life time)  
Option Code K or L (10 year life time)  
5
113  
63  
33  
Total Stability  
tjit(cc)  
Cycle-to-Cycle Jitter NOTE 1, 2, 3  
Period Jitter, RMS; NOTE 1, 2, 3  
20  
tjit(per)  
3.3  
ps  
fOUT = 156.25MHz,  
Integration Range: 12kHz - 20MHz  
0.65  
0.94  
0.65  
0.90  
1.05  
ps  
ps  
ps  
RMS Phase Jitter (Random)  
NOTE 4  
tjit(Ø)  
f
OUT = 156.25MHz,  
Integration Range: 1kHz - 40MHz  
RMS Phase Jitter (Random)  
NOTE 4, 5  
tjit(Ø)  
Integration Range: 12kHz - 20MHz  
ΦN(100)  
ΦN(1k)  
Single-side Band Phase Noise  
Single-side band phase noise  
Single-side band phase noise  
fOUT = 156.25MHz, 100Hz from Carrier  
fOUT = 156.25MHz, 1kHz from Carrier  
fOUT = 156.25MHz, 10kHz from Carrier  
fOUT = 156.25MHz, 100kHz from Carrier  
fOUT = 156.25MHz, 1MHz from Carrier  
fOUT = 156.25MHz, 10MHz from Carrier  
20% to 80%  
-65  
-96  
dBc/Hz  
dBc/Hz  
dBc/Hz  
dBc/Hz  
dBc/Hz  
dBc/Hz  
ps  
ΦN(10k)  
-117  
-126  
-138  
-144  
ΦN(100k) Single-side band phase noise  
ΦN(1M) Single-side band phase noise,  
ΦN(10M) Single-side band phase noise,  
tR / tF  
odc  
Output Rise/Fall Time  
Output Duty Cycle  
175  
45  
715  
55  
%
tSTARTUP Device Start-up Time After Power-up  
Output Frequency Settling Time After  
20  
ms  
tSET  
FSEL0 and FSEL1 Values are  
Changed  
1
ms  
NOTE: Characterized with VC in linear range.  
NOTE: XTAL parameters (Initial Accuracy, temperature Stability, Aging and Total Stability) are guaranteed by manufacturing.  
NOTE: Electrical parameters are guaranteed over the specified ambient operating temperature range, which is established when the device is  
mounted in a test socket with maintained transverse airflow greater than 500 lfpm. The device will meet specifications after thermal equilibrium  
has been reached under these conditions.  
NOTE 1: This parameter is defined in accordance with JEDEC standard 65.  
NOTE 2: Tested at supply voltage VCC = 3.3V 5%.  
NOTE 3: Applies to output frequencies: 15.476, 19.44, 25, 33.33, 74.174, 74.25, 100, 106.25, 122.88, 125, 150, 155.52, 156.25, 161.132,  
176.8328, 187.5, 200, 212.5, 250 and 260MHz.  
NOTE 4: Refer to phase noise plot.  
NOTE 5: Applies to output frequencies: 25, 33.33, 100, 106.25, 122.88, 125, 148.5, 150, 155.52, 156.25, 161.132, 164.3555, 166.62875,  
176.8328, 187.5, 212.5 and 250MHz.  
IDT8N0DV85ACD REVISION A AUGUST 14, 2012  
6
©2012 Integrated Device Technology, Inc.  
IDT8N0DV85 Data Sheet  
LVCMOS Dual-Frequency Programmable VCXO  
Typical Phase Noise at 156.25MHz (12kHz - 20MHz)  
Offset Frequency (Hz)  
IDT8N0DV85ACD REVISION A AUGUST 14, 2012  
7
©2012 Integrated Device Technology, Inc.  
IDT8N0DV85 Data Sheet  
LVCMOS Dual-Frequency Programmable VCXO  
Parameter Measurement Information  
1.25V+5%  
1.65V+5%  
SCOPE  
SCOPE  
V
CC  
V
CC  
Qx  
Qx  
GND  
GND  
1.25V+5%  
1.65V+5%  
3.3V LVCMOS/LVTTL Output Load AC Test Circuit  
2.5V LVCMOS/LVTTL Output Load AC Test Circuit  
Phase Noise Plot  
80%  
tF  
80%  
tR  
20%  
20%  
Q
Offset Frequency  
f1  
f2  
RMS Phase Jitter =  
1
*
Area Under Curve Defined by the Offset Frequency Markers  
2 * * ƒ  
Output Rise and Fall Time  
RMS Phase Jitter  
VOH  
VCC  
2
VREF  
Q
tPW  
VOL  
tPERIOD  
1σ contains 68.26% of all measurements  
2σ contains 95.4% of all measurements  
3σ contains 99.73% of all measurements  
4σ contains 99.99366% of all measurements  
6σ contains (100-1.973x10-7)% of all measurements  
tPW  
x 100%  
odc =  
Histogram  
Reference Point  
(Trigger Edge)  
tPERIOD  
Mean Period  
(First edge after trigger)  
Output Duty Cycle/Pulse Width/Period  
RMS Period Jitter  
IDT8N0DV85ACD REVISION A AUGUST 14, 2012  
8
©2012 Integrated Device Technology, Inc.  
IDT8N0DV85 Data Sheet  
LVCMOS Dual-Frequency Programmable VCXO  
Applications Information  
Recommendations for Unused Input Pins  
Inputs:  
LVCMOS Pins  
The control pin has an internal pulldown; additional resistance is not  
required but can be added for additional protection. A 1kΩ resistor  
can be used.  
IDT8N0DV85ACD REVISION A AUGUST 14, 2012  
9
©2012 Integrated Device Technology, Inc.  
IDT8N0DV85 Data Sheet  
LVCMOS Dual-Frequency Programmable VCXO  
Schematic Layout  
Figure 1 shows an example of IDT8N0DV85 application schematic.  
In this example, the device is operated at VCC = 3.3V. The schematic  
example focuses on functional connections and is intended as an  
example only and may not represent the exact user configuration.  
Refer to the pin description and functional tables in the datasheet to  
ensure the logic control inputs are properly set. For example FSEL  
can be configured from an FPGA instead of set with pull up and pull  
down resistors as shown.  
As with any high speed analog circuitry, the power supply pins are  
vulnerable to random noise, so to achieve optimum jitter performance  
isolation of the VCC pin from the power supply is required. In order to  
achieve the best possible filtering, it is recommended that the  
placement of the filter components be on the device side of the PCB  
as close to the power pins as possible. If space is limited, the 0.1µF  
capacitor on the VCC pin must be placed on the device side with  
direct return to the ground plane though vias. The remaining filter  
components can be on the opposite side of the PCB.  
The typical application of the IDT8N0DV85 is a voltage-controlled  
oscillator as part of a PLL. The two connections necessary to be  
made to the PLL are VC, the analog control voltage that sets the  
center frequency of the VCXO, and Q, which is the oscillator output.  
VC is the analog output of the PLL low pass loop filter that serves to  
remove noise from the phase detector error output.  
Power supply filter component recommendations are a general  
guideline to be used for reducing external noise from coupling into  
the devices. The filter performance is designed for a wide range of  
noise frequencies. This low-pass filter starts to attenuate noise at  
approximately 10kHz. If a specific frequency noise component is  
known, such as switching power supplies frequencies, it is  
recommended that component values be adjusted and if required,  
additional filtering be added. Additionally, good general design  
practices for power plane voltage stability suggests adding bulk  
capacitance in the local area of all devices.  
In order to achieve the best possible filtering, it is recommended that  
the placement of the filter components be on the device side of the  
PCB as close to the power pins as possible. If space is limited, the  
0.1µF capacitor in each power pin filter should be placed on the  
device side of the PCB and the other components can be placed on  
the opposite side.  
Logic Control Input Examples  
3. 3V  
Set Logic  
Input to '1'  
Set Logic  
Input to '0'  
VCC  
VCC  
FB1  
BLM18BB221SN1  
2
1
VCC  
RU1  
1K  
RU2  
Not Install  
C2  
C1  
10uF  
0. 1uF  
To Logic  
Input  
To Logic  
Input  
pins  
pins  
RD1  
RD2  
1K  
Not Install  
Analog Control Voltage  
is the low pass filtered  
output of a PLL Phase  
Detector.  
Place 0.1uF bypass  
cap directly  
adjacent to the VCC  
pin.  
U1  
VC  
1
2
3
6
VCC  
Analog Cont rol Voltage  
FSEL  
VCC  
C3  
5
4
0.1uF  
FSEL DNU  
R3  
GND  
Q
Q
33  
Q is connected to  
the VCXO input  
pin of a PLL.  
Figure 1. IDT8N0DV85 Application Schematic  
IDT8N0DV85ACD REVISION A AUGUST 14, 2012  
10  
©2012 Integrated Device Technology, Inc.  
IDT8N0DV85 Data Sheet  
LVCMOS Dual-Frequency Programmable VCXO  
Power Considerations  
This section provides information on power dissipation and junction temperature for the IDT8N0DV85.  
Equations and example calculations are also provided.  
1. Power Dissipation.  
The total power dissipation for the IDT8N0DV85 is the sum of the core power plus the power dissipation in the load(s). The following is the  
power dissipation for VCC = 3.3V +5% = 3.465V, which gives worst case results.  
•
Power (core)MAX = VCC_MAX * ICC= 3.465V * 163mA = 564.8mW  
Total Static Power:  
= Power (core)MAX = 564.8mW  
Dynamic Power Dissipation at FOUT (max)  
Total Power (FOUT_MAX) = [(CPD * N) * Frequency * (VCC)2] = [(8pF *1) * 260MHz * (3.465V)2] = 25mW  
Total Power  
Total Power  
= Static Power + Dynamic Power Dissipation  
= 564.8mW + 25mW  
= 589.8mW  
2. Junction Temperature.  
Junction temperature, Tj, is the temperature at the junction of the bond wire and bond pad, and directly affects the reliability of the device. The  
maximum recommended junction temperature is 125°C. Limiting the internal transistor junction temperature, Tj, to 125°C ensures that the bond  
wire and bond pad temperature remains below 125°C.  
The equation for Tj is as follows: Tj = θJA * Pd_total + TA  
Tj = Junction Temperature  
θJA = Junction-to-Ambient Thermal Resistance  
Pd_total = Total Device Power Dissipation (example calculation is in section 1 above)  
TA = Ambient Temperature  
In order to calculate junction temperature, the appropriate junction-to-ambient thermal resistance θJA must be used. Assuming no air flow and  
a multi-layer board, the appropriate value is 49.4°C/W per Table 6 below.  
Therefore, Tj for an ambient temperature of 85°C with all outputs switching is:  
85°C + 0.590W * 49.4°C/W = 114.1°C. This is below the limit of 125°C.  
This calculation is only an example. Tj will obviously vary depending on the number of loaded outputs, supply voltage, air flow and the type of  
board (multi-layer).  
Table 6. Thermal Resistance θJA for a 6-lead Ceramic 5mm x 7mm Package, Forced Convection  
θJA by Velocity  
Meters per Second  
0
1
2
Multi-Layer PCB, JEDEC Standard Test Boards  
49.4°C/W  
44.2°C/W  
42.1°C/W  
IDT8N0DV85ACD REVISION A AUGUST 14, 2012  
11  
©2012 Integrated Device Technology, Inc.  
IDT8N0DV85 Data Sheet  
LVCMOS Dual-Frequency Programmable VCXO  
Reliability Information  
Table 7. θ vs. Air Flow Table for a 6-lead Ceramic 5mm x 7mm Package  
JA  
θJA vs. Air Flow  
Meters per Second  
0
1
2
Multi-Layer PCB, JEDEC Standard Test Boards  
49.4°C/W  
44.2°C/W  
42.1°C/W  
Transistor Count  
The transistor count for IDT8N0DV85 is: 47,414  
IDT8N0DV85ACD REVISION A AUGUST 14, 2012  
12  
©2012 Integrated Device Technology, Inc.  
IDT8N0DV85 Data Sheet  
LVCMOS Dual-Frequency Programmable VCXO  
Package Outline and Package Dimensions  
IDT8N0DV85ACD REVISION A AUGUST 14, 2012  
13  
©2012 Integrated Device Technology, Inc.  
IDT8N0DV85 Data Sheet  
LVCMOS Dual-Frequency Programmable VCXO  
Ordering Information for FemtoClock NG Ceramic-Package XO and VCXO Products  
The programmable VCXO and XO devices support a variety of  
devices options such as the output type, number of default frequen-  
cies, internal crystal frequency, power supply voltage, ambient  
temperature range and the frequency accuracy. The device options,  
default frequencies and default VCXO pull range must be specified at  
the time of order and are programmed by IDT before the shipment.  
The table below specifies the available order codes, including the  
device options and default frequency configurations. Example part  
number: the order code 8N3QV01FG-0001CDI specifies a  
contains a 114.285MHz internal crystal as frequency source,  
industrial temperature range, a lead-free (6/6 RoHS) 6-lead ceramic  
5mm x 7mm x 1.55mm package and is factory-programmed to the  
default frequencies of 100MHz, 122.88MHz, 125MHz and  
156.25MHz and to the VCXO pull range of min. ±100ppm.  
Other default frequencies and order codes are available from IDT on  
request. For more information on available default frequencies, see  
the FemtoClock NG Ceramic-Package XO and VCXO Ordering  
Product Information document.  
programmable, quad default-frequency VCXO with a voltage supply  
of 2.5V, a LVPECL output, a ±50ppm crystal frequency accuracy,  
Part/Order Numbers  
8N X X XXX X X - dddd XX X X  
Shipping Package  
8: Tape & Reel  
(no letter): Tray  
FemtoClock NG  
I/O Identifier  
Ambient Temperature Range  
“I”: Industrial: (TA = -40°C to 85°C)  
(no letter) : (TA = 0°C to 70°C)  
0: LVCMOS  
3: LVPECL  
4: LVDS  
Package Code  
CD: Lead-Free, 6/10-lead ceramic 5mm x 7mm x 1.55mm  
Number of Default Frequencies  
S: 1: Single  
D: 2: Dual  
Q: 4: Quad  
Default-Frequency and VCXO Pull Range  
See document FemtoClock NG Ceramic-Package XO and VCXO  
Ordering Product Information.  
dddd  
fXTAL (MHz) PLL feedback  
Use for  
VCXO, XO  
XO  
Part Number  
Function #pins  
0000 to 0999  
1000 to 1999  
2000 to 2999  
114.285  
Fractional  
Integer  
OEfct. at  
pin  
100.000  
Fractional  
XO  
001  
003  
V01  
V03  
V75  
V76  
V85  
085  
270  
271  
272  
273  
XO  
XO  
10  
10  
10  
10  
6
OE@2  
OE@1  
OE@2  
OE@1  
OE@2  
nOE@2  
—
Last digit = L: configuration pre-programmed and not  
VCXO  
VCXO  
VCXO  
VCXO  
VCXO  
XO  
Die Revision  
A
6
6
Option Code (Supply Voltage and Frequency-Stability)  
A: VCC = 3.3V 5%, 100ppm  
B: VCC = 2.5V 5%, 100ppm  
6
OE@1  
OE@1  
OE@2  
nOE@2  
nOE@1  
XO  
6
XO  
6
E: VCC = 3.3V 5%,  
F: VCC = 2.5V 5%,  
K: VCC = 3.3V 5%,  
L: VCC = 2.5V 5%,  
50ppm  
50ppm  
20ppm  
20ppm  
XO  
6
XO  
6
NOTE: For order information, also see the FemtoClock NG Ceramic-Package XO and VCXO Ordering Product Information document.  
IDT8N0DV85ACD REVISION A AUGUST 14, 2012  
14  
©2012 Integrated Device Technology, Inc.  
IDT8N0DV85 Data Sheet  
LVCMOS Dual-Frequency Programmable VCXO  
Table 8. Device Marking  
Industrial Temperature Range (TA = -40°C to 85°C)  
Commercial Temperature Range (TA = 0°C to 70°C)  
IDT8N0DV85yA-  
ddddCDI  
IDT8N0DV85yA-  
ddddCD  
Marking  
y = Option Code, dddd=Default-Frequency and VCXO Pull Range  
IDT8N0DV85ACD REVISION A AUGUST 14, 2012  
15  
©2012 Integrated Device Technology, Inc.  
IDT8N0DV85 Data Sheet  
LVCMOS Dual-Frequency Programmable VCXO  
We’ve Got Your Timing Solution  
6024 Silver Creek Valley Road Sales  
Technical Support  
800-345-7015 (inside USA)  
netcom@idt.com  
San Jose, California 95138  
+408-284-8200 (outside USA) +480-763-2056  
Fax: 408-284-2775  
www.IDT.com/go/contactIDT  
DISCLAIMER Integrated Device Technology, Inc. (IDT) and its subsidiaries reserve the right to modify the products and/or specifications described herein at any time and at IDT’s sole discretion. All information in this document,  
including descriptions of product features and performance, is subject to change without notice. Performance specifications and the operating parameters of the described products are determined in the independent state and are not  
guaranteed to perform the same way when installed in customer products. The information contained herein is provided without representation or warranty of any kind, whether express or implied, including, but not limited to, the  
suitability of IDT’s products for any particular purpose, an implied warranty of merchantability, or non-infringement of the intellectual property rights of others. This document is presented only as a guide and does not convey any  
license under intellectual property rights of IDT or any third parties.  
IDT’s products are not intended for use in applications involving extreme environmental conditions or in life support systems or similar devices where the failure or malfunction of an IDT product can be reasonably expected to signif-  
icantly affect the health or safety of users. Anyone using an IDT product in such a manner does so at their own risk, absent an express, written agreement by IDT.  
Integrated Device Technology, IDT and the IDT logo are registered trademarks of IDT. Other trademarks and service marks used herein, including protected names, logos and designs, are the property of IDT or their respective third  
party owners.  
Copyright 2012. All rights reserved.  
厂商 型号 描述 页数 下载

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