5.0 mm x 3.2 mm Package Pinout ............................................................................................................................................... 1
Ordering Information .................................................................................................................................................................... 2
Device Configurations and Pin-outs ............................................................................................................................................. 9
Pin-out Top Views................................................................................................................................................................. 9
Test Circuit Diagrams for LVCMOS and Clipped Sinewave Outputs ......................................................................................... 10
Frequency Stability ............................................................................................................................................................. 16
Output Frequency and Format............................................................................................................................................ 16
Output Frequency Tuning ................................................................................................................................................... 16
Pin 1 Configuration (OE, VC, or NC) .................................................................................................................................. 17
Control Voltage Bandwidth ................................................................................................................................................. 20
Pull Range and Average Pull Range .................................................................................................................................. 22
Output Frequency ............................................................................................................................................................... 23
2
I C Control Registers .......................................................................................................................................................... 25
Serial Interface Configuration Description .......................................................................................................................... 28
Serial Signal Format ........................................................................................................................................................... 28
Parallel Signal Format ........................................................................................................................................................ 29
Parallel Data Format ........................................................................................................................................................... 29
2
I C Timing Specification ...................................................................................................................................................... 31
2
I C Device Address Modes ................................................................................................................................................. 32
Schematic Example ............................................................................................................................................................ 33
Dimensions and Patterns ........................................................................................................................................................... 34
Additional Information ................................................................................................................................................................ 36
Revision History ......................................................................................................................................................................... 37
Rev 1.05
Page 3 of 38
www.sitime.com
SiT5156
1 MHz to 60 MHz, ±0.5 to ±2.5 ppm, Elite Platform™ Super-TCXO
Electrical Characteristics
All Min and Max limits are specified over temperature and rated operating voltage with 15 pF output load unless otherwise
stated. Typical values are at 25°C and 3.3V Vdd.
Table 1. Output Characteristics
Parameters
Nominal Output Frequency Range
Operating Temperature Range
Symbol
F_nom
T_use
Min.
1
-20
-40
-40
Frequency Stability over
Temperature
Initial Tolerance
Supply Voltage Sensitivity
F_stab
–
–
–
F_init
F_Vdd
–
–
–
–
Output Load Sensitivity
F_load
–
–
–
Frequency vs. Temperature Slope
ΔF/ΔT
–
–
–
Dynamic Frequency Change during
Temperature Ramp
One-Year Aging
20-Year Aging
F_dynamic
–
–
–
F_1y
F_20y
–
–
Typ.
–
–
–
–
–
–
–
–
±7.10
±11.83
±28.40
±0.81
±1.35
±3.24
±15
±25
±60
±0.13
±0.21
±0.50
±1
±2
Max.
60
+70
+85
+105
±0.5
±1.0
±2.5
±1
±16.25
±32.50
±65.0
±2.75
±5.50
±11.00
±25
±50
±100
±0.21
±0.42
±0.83
–
–
Unit
MHz
°C
°C
°C
ppm
ppm
ppm
ppm
ppb
ppb
ppb
ppb
ppb
ppb
ppb/°C
ppb/°C
ppb/°C
ppb/s
ppb/s
ppb/s
ppm
ppm
Initial frequency at 25°C at 48 hours after 2 reflows
当地时间4月25日,欧盟委员会宣布了一系列措施,增加公共和私人投资人工智能( AI ),以让 AI 服务于欧洲人,为社会经济变化做好准备,并提升欧洲在这一领域的竞争力。下面就随网络通信小编一起来了解一下相关内容吧。 当天欧盟委员会副主席Andrus Ansip援引一份数据指出,2016年欧洲企业对 AI 投资金额为40亿美元,而同时期亚洲、美国分别为120亿美元和230亿美元。在A...[详细]
无人经济当道,从无人机送货、无人车、无人银行、无人酒店、无人仓储,以至于无人工厂、无人商店等,背后无非都是人工智(Artificial Intelligence;AI)与物联网(Internet of Things;IoT)技术整合后的各式智能物联(AIoT)创新运用。其中,无人商店最贴近一般大众的消费生活,且具有颠覆电商平台及传统零售百货业的实体经营模式,更受到商业市场的重视。 电商大...[详细]