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參數(shù)資料
| 型號： | DS4026S+WCN |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 1/14頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC OSC TCXO 25MHZ 16-SOIC |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 45 |
| 類型： | 溫度 - 補償晶體振蕩器（TCXO） |
| 頻率： | 25MHz |
| 電源電壓： | 3.135 V ~ 3.465 V |
| 電流 - 電源： | 1.5mA |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 16-SOIC（0.295"，7.50mm 寬） |
| 包裝： | 管件 |
| 供應商設備封裝： | 16-SOIC W |
| 安裝類型： | 表面貼裝 |
General Description
The DS4026 is a temperature-compensated crystal
oscillator (TCXO) that provides ±1ppm frequency stabili-
ty over the -40°C to +85°C industrial temperature range.
The DS4026 is also available in Stratum 3 versions (see
the
Ordering Information—Stratum 3 table). Each device
is factory calibrated over temperature to achieve the
±1ppm frequency stability. Standard frequencies for the
device include 10, 12.8, 19.44, 20, 38.88, 40, and
51.84MHz. Contact the factory for custom frequencies.
The DS4026 provides excellent phase-noise characteris-
tics. The output is a push-pull CMOS square wave with
symmetrical rise and fall times. In addition, the DS4026
is designed to provide a maximum frequency deviation
of less than ±4.6ppm over 20 years. The device also
provides an I2C interface to allow pushing and pulling
of the output frequency by a minimum of ±8ppm
(±5ppm for 10MHz) with typical 1ppb resolution.
The DS4026 implements a temperature-to-voltage con-
version with a nonlinear relationship. The output from
the temperature-to-voltage converter is used to drive
the voltage-controlled crystal oscillator to compensate
for frequency change.
The device implements an on-chip temperature sensor
lookup table, and a digital-to-analog converter (DAC) to
adjust the frequency. An I2C interface used to commu-
nicate with the DS4026 performs temperature readings
and frequency push-pull.
Applications
Reference Clock Generation
Wireless
Telecom/Datacom/SATCOM
Test and Measurement
Features
±1ppm Frequency Accuracy Over -40°C to +85°C
Standard Frequencies: 10, 12.8, 19.44, 20, 38.88,
40, 51.84MHz
Stratum 3 Frequencies: 10, 12.8, 19.2, 20MHz
Maximum ±4.6ppm Deviation Over 20 Years
Minimum ±8ppm (±5ppm for 10MHz) Digital
Frequency Tuning Through I2C Interface
Surface-Mount 16-Pin SO Package
Pb Free/RoHS Compliant
DS4026
10MHz to 51.84MHz TCXO
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
GNDA
VCCD
FOUT
GNDD
SCL
SDA
GND
N.C.
TOP VIEW
VREF
VCC
N.C.
VOSC
GNDOSC
N.C.
DS4026
+
Pin Configuration
Rev 2; 4/08
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
+
Denotes a lead(Pb)-free/RoHS-compliant package.
*The top mark will include a “+” for a lead(Pb)-free/RoHS-compliant device.
Ordering Information continued at end of data sheet.
Ordering Information
PART
TEMP RANGE
OUTPUT (fC)
(MHz, CMOS)
PIN-PACKAGE
TOP MARK*
DS4026S+ACC
0°C to +70°C
10.00
16 SO
DS4026-ACC
DS4026S+ACN
-40°C to +85°C
10.00
16 SO
DS4026-ACN
DS4026S+BCC
0°C to +70°C
12.80
16 SO
DS4026-BCC
DS4026S+BCN
-40°C to +85°C
12.80
16 SO
DS4026-BCN
DS4026S+ECC
0
°C to +70°C
16.80
16 SO
DS4026-ECC
DS4026S+ECN
-40
°C to +85°C
16.80
16 SO
DS4026-ECN
DS4026S+FCC
0
°C to +70°C
16.384
16 SO
DS4026-FCC
DS4026S+FCN
-40
°C to +85°C
16.384
16 SO
DS4026-FCN
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