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参数资料
| 型号： | LTC6908CDCB-1#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC OSC SILICON 10MHZ 6-DFN |
| 标准包装： | 2,500 |
| 类型： | 振荡器 - 硅 |
| 频率： | 50kHz ~ 10MHz |
| 电源电压： | 2.7 V ~ 5.5 V |
| 电流 - 电源： | 1.25mA |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 6-WFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 6-DFN-EP（2x3） |
| 安装类型： | 表面贴装 |
LTC6908-1/LTC6908-2
1
690812fa
690812 TA01b
FREQUENCY
(FUNDAMENTAL AND HARMONICS SHOWN)
150kHz
0
–10
–20
–30
–40
0
–10
–20
–30
–40
OUTPUT
(dBc)
OUTPUT
(dBc)
30MHz
SSFM DISABLED
SSFM ENABLED
Resistor Set SOT-23
Oscillator with Spread
Spectrum Modulation
The LTC6908 is an easy-to-use precision oscillator that
provides 2-outputs, shifted by either 180° or 90°. The
oscillator frequency is programmed by a single external
resistor (RSET)andspreadspectrumfrequencymodulation
(SSFM) can be activated for improved electromagnetic
compatibility (EMC) performance.
The LTC6908 operates with a single 2.7V to 5.5V supply
and provides rail-to-rail, 50% duty cycle square wave
outputs. A single resistor from 10k to 2M is used to select
an oscillator frequency from 50kHz to 10MHz (5V supply).
The oscillator can be easily programmed using the simple
formula outlined below:
fOUT =10MHz 10k/RSET
The LTC6908’s SSFM capability modulates the output
frequency by a pseudorandom noise (PRN) signal to
decrease the peak electromagnetic radiation level and
improve EMC performance. The amount of frequency
spreading is xed at ±10% of the center frequency. When
SSFM is enabled, the rate of modulation is selected by the
user. The three possible modulation rates are fOUT/16,
fOUT/32 and fOUT/64.
■ Switching Power Supply Clock Reference
■ Portable and Battery-Powered Equipment
■ Precision Programmable Oscillator
■ Charge Pump Driver
■ LTC6908-1: Complementary Outputs (0°/180°)
■ LTC6908-2: Quadrature Outputs (0°/90°)
■ 50kHz to 10MHz Frequency Range
■ One External Resistor Sets the Frequency
■ Optional Spread Spectrum Frequency Modulation
for Improved EMC Performance
■ ±10% Frequency Spreading
■ 400A Supply Current Typical (V+ = 5V, 50kHz)
■ Frequency Error ≤1.5% Max (TA = 25°C, V+ = 3V)
■ ±40ppm/°C Temperature Stability
■ Fast Start-Up Time: 260s Typical (1MHz)
■ Outputs Muted Until Stable
■ Operates from a Single 2.7V to 5.5V Supply
■ Available in Low Prole (1mm) ThinSOT and DFN
(2mm
× 3mm) Packages
APPLICATIO S
U
FEATURES
DESCRIPTIO
U
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
2.25MHz, 2.5V/8A Step-Down Regulator
TYPICAL APPLICATIO
U
CBYP
44.2k
OUT1
OUT2
fOUT = 10MHz 10k/RSET
MOD
V+
GND
SET
690812 TA01a
SVIN TRACK
LTC3418
RT
CIN
100
F
0.2
H
LTC6908-1
RUN/SS
ITH
PGOOD
SW
PGND
SGND
SYNC/MODE VFB
PVIN
820pF
1000pF
0.1
F
COUT
100
F
×2
VOUT
2.5V
8A
4.32k
2k
41.2k
2.2M
VIN
2.8V TO 5.5V
4.99k
150kHz to 30MHz Output
Frequency Spectrum
(9kHz Res BW)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC6908CDCB-2 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Resistor Set SOT-23 Oscillator with Spread Spectrum Modulation |
| LTC6908CDCB-2#TRMPBF | 功能描述:IC OSC SILICON 10MHZ 6-DFN RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 可编程计时器和振荡器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:45 系列:- 类型:温度 - 补偿晶体振荡器（TCXO） 计数:- 频率:25MHz 电源电压:3.135 V ~ 3.465 V 电流 - 电源:1.5mA 工作温度:-40°C ~ 85°C 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 包装:管件 供应商设备封装:16-SOIC W 安装类型:表面贴装 |
| LTC6908CDCB-2#TRPBF | 功能描述:IC OSC SILICON 10MHZ 6-DFN RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 可编程计时器和振荡器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:45 系列:- 类型:温度 - 补偿晶体振荡器（TCXO） 计数:- 频率:25MHz 电源电压:3.135 V ~ 3.465 V 电流 - 电源:1.5mA 工作温度:-40°C ~ 85°C 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 包装:管件 供应商设备封装:16-SOIC W 安装类型:表面贴装 |
| LTC6908CS6-1 | 制造商:Linear Technology 功能描述:RESISTOR SET SOT-23 OSCILLATOR WITH SPREAD SPECTRUM MODULATION |
| LTC6908CS6-1#PBF | 制造商:Linear Technology 功能描述:Silicon Oscillator 6-Pin TSOT-23 制造商:Linear Technology 功能描述:OSCILLATOR 10MHZ 5.5V TSOT- 制造商:Linear Technology 功能描述:OSCILLATOR, 10MHZ, 5.5V, TSOT-23-6; Operating Mode:-; Frequency:10MHz; Supply Voltage Min:2.7V; Supply Voltage Max:5.5V; Digital IC Case Style:TSOT-23; No. of Pins:6; Clock External Input:Yes; Operating Temperature Min:0C ;RoHS Compliant: Yes |
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