19-6186; Rev 0; 3/12 DS1088C 固定频率EconoOscillator™ 概述 DS1088C低成本时钟发生器无需外部定时元件，即可输出 方波。固定频率振荡器经过工厂校准，工作在133MHz频 率。器件具有关断引脚，适用于功耗敏感应用。 应用 打印机 复印机 特性 S工厂编程，133MHz方波发生器 S单输出 S无需外部定时元件 S2.7V至3.6V供电 S关断模式 S宽工作温度范围(-20°C至+85°C) 汽车远程信息处理 典型工作电路 计算机外设 POS终端 电缆调制解调器 定购信息在数据资料的最后给出。 133MHz OUTPUT OUT VCC VCC DNC DS1088C DNC VCC PDN GND GND VCC DECOUPLING CAPACITORS (0.1µF AND 0.01µF) EconOscillator是Maxim Integrated Products, Inc.的商标。 相关型号以及配合该器件使用的推荐产品，请参见：china.maximintegrated.com/DS1088C.related。 本文是英文数据资料的译文，文中可能存在翻译上的不准确或错误。如需进一步确认，请在您的设计中参考英文资料。 有关价格、供货及订购信息，请联络Maxim亚洲销售中心：10800 852 1249 (北中国区)，10800 152 1249 (南中国区)， 或访问Maxim的中文网站：china.maximintegrated.com。 DS1088C 固定频率EconoOscillator™ Absolute Maximum Ratings Storage Temperature Range............................. -55°C to +125°C Lead Temperature (TDFN only; soldering, 10s)..............+300°C Soldering Temperature (reflow).......................................+260°C (Voltages relative to ground.) Voltage Range on VCC..........................................-0.5V to +6.0V Voltage Range on PDN............................ -0.5V to (VCC + 0.5V)* Operating Temperature Range........................... -20°C to +85°C *Not to exceed +6.0V. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Recommended Operating Conditions (TA = -20NC to +85NC, unless otherwise noted.) PARAMETER SYMBOL Supply Voltage VCC High-Level Input Voltage (PDN) VIH Low-Level Input Voltage (PDN) VIL CONDITIONS (Note 1) MIN TYP 2.7 0.7 x VCC -0.3 MAX UNITS 3.6 V VCC + 0.3 V 0.3 x VCC V DC Electrical Characteristics (VCC = 2.7V to 3.6V, TA = -20NC to +85NC, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX VCC 0.4 UNITS High-Level Output Voltage (OUT) VOH IOH = -4mA, VCC = MIN Low-Level Output Voltage (OUT) VOL IOL = 4mA 0.4 V High-Level Input Current (PDN) IIH VCC = 3.6V 1 FA Low-Level Input Current (PDN) IIL VIL = 0V Supply Current (Active) Standby Current (Power-Down) ICC ICCQ V -1 VCC = 3.6V, CL = 15pF, fO = 133MHz FA 15 Power-down mode 24 mA 10 FA MAX UNITS Oscillator Characteristics—TDFN (VCC = 2.7V to 3.6V, TA = -20NC to +85NC, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP Output Frequency Range Available fO Output Frequency Tolerance ∆fO fO VCC = 3.3V, TA = +25NC (Note 2) -0.3 +0.3 % Voltage Frequency Variation ∆fV fO Over voltage range, TA = +25NC (Note 3) -0.35 +0.35 % Temperature Frequency Variation ∆fT fO Over temperature range, VCC = 3.3V (Notes 4, 5) -20NC to +25NC -0.7 +0.7 +25NC to +85NC -0.5 +0.5 -1.0 +1.0 Frequency Variation Over Voltage and Temperature Maxim Integrated ∆fV,T fO 133.3 Over voltage and temperature range MHz % % 2 DS1088C 固定频率EconoOscillator™ Oscillator Characteristics—WLP (VCC = 2.7V to 3.6V, TA = -20NC to +85NC, unless otherwise noted.) PARAMETER Output Frequency SYMBOL CONDITIONS MIN TYP MAX 133.3 fO Output Frequency Tolerance ∆fO fO VCC = 3.3V, TA = +25NC (Note 2) Voltage Frequency Variation ∆fV fO Over voltage range, TA = +25NC (Note 3) Temperature Frequency Variation ∆fT fO Over temperature range, VCC = +3.3V (Notes 4, 5) Frequency Variation Over Voltage and Temperature ∆fT fO Over voltage and temperature range UNITS MHz -3 +3 % -3.5 +3.5 % -20NC to +25NC -7 +7 +25NC to +85NC -5 +5 -10 +10 % MAX UNITS % AC Electrical Characteristics (VCC = 2.7V to 3.6V, TA = -20NC to +85NC, unless otherwise noted.) PARAMETER Power-Up Time OUT Disabled After Entering Power-Down Mode Load Capacitance Output Duty Cycle (OUT) SYMBOL CONDITIONS MIN TYP tPOR + tSTAB (Note 6) 100 Fs tPDN (Note 7) 7 Fs CL (Note 8) 50 pF 60 % 15 40 Note 1: All voltages are referenced to ground. Note 2: Typical frequency shift due to aging is within ±0.2%. Aging stressing includes level 1 moisture reflow preconditioning (24hr +125°C bake, 168hr +85°C/85%RH moisture soak, and three solder reflow passes +240°C +0°C/-5°C peak) followed by1000hr (max) VCC biased +125°C OP/L, 1000hr unbiased +150°C bake, 1000 temperature cycles at -55°C to +125°C and 168hr +121°C/2 ATM steam/unbiased autoclave. Note 3: This is the change in output frequency due to changes in voltage at TA = +25°C. Note 4: Guaranteed by design. Note 5: This is the change in output frequency due to changes in temperature from the +25°C frequency at VCC = 3.3V. Note 6: This indicates the time elapsed between power-up and the output becoming active. An on-chip delay is intentionally introduced to allow the oscillator to stabilize. tSTAB is equivalent to approximately 512 clock cycles and will depend on the programmed oscillator frequency. Note 7: Output disabled in two cycles or less of the output frequency. Note 8: Output voltage swings may be impaired at high frequencies combined with high-output loading. Maxim Integrated 3 DS1088C 固定频率EconoOscillator™ 典型工作特性 (VCC = 3.3V, TA = +25°C, unless otherwise noted.) ACTIVE SUPPLY CURRENT vs. SUPPLY VOLTAGE 9 8 7 6 5 15 7 6 5 5 30 55 10 9 3.1 6 3.3 3.5 2.9 2.7 3.3 3.1 SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) SHUTDOWN SUPPLY CURRENT vs. TEMPERATURE FREQUENCY ERROR vs. SUPPLY VOLTAGE FREQUENCY ERROR vs. TEMPERATURE 2.1 2.0 1.9 1.8 1.7 0.10 0.05 0 -0.05 -0.10 1.5 5 30 55 -0.20 80 2.9 2.7 TEMPERATURE (°C) 3.1 3.3 DS1088E toc06 -0.2 TA = +25°C CL || RL = 1.8pF || 500Ω -20 55 30 5 SUPPLY VOLTAGE (V) 80 TEMPERATURE (°C) DUTY CYCLE vs. TEMPERATURE 56 DS1088C toc07 56 55 VCC = 3.3V 55 54 54 DUTY CYCLE (%) DUTY CYCLE (%) -0.1 -0.4 3.5 DUTY CYCLE vs. SUPPLY VOLTAGE 53 52 51 53 52 51 50 50 TA = +25°C CL || RL = 1.8pF || 500Ω 49 2.7 2.9 3.1 3.3 SUPPLY VOLTAGE (V) Maxim Integrated 0 -0.3 TA = +25°C CL || RL = 1.8pF || 500Ω -0.15 1.6 0.1 DS1088C toc08 2.2 VCC = 3.3V 0.2 FREQUENCY ERROR (%) FREQUENCY ERROR (%) 2.3 0.15 3.5 0.3 DS1088C toc05 0.20 DS1088C toc04 VPDN = 0V VCC = 3.3V -20 11 TEMPERATURE (°C) 2.5 2.4 2.9 2.7 80 12 7 3 -20 13 8 4 3 CL = 15pF TA = +25°C 14 8 4 SHUTDOWN CURRENT (µA) CL = 1.8pF TA = +25°C DS1088C toc02 10 SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) 9 CL = 1.8pF SUPPLY CURRENT (mA) VCC = 3.3V DS1088C toc01 10 ACTIVE SUPPLY CURRENT vs. SUPPLY VOLTAGE DS1088C toc03 ACTIVE SUPPLY CURRENT vs. TEMPERATURE 49 3.5 TA = +25°C CL || RL = 1.8pF || 500Ω 48 -20 5 30 55 80 TEMPERATURE (°C) 4 DS1088C 固定频率EconoOscillator™ 引脚/焊球配置 TOP VIEW DNC DNC PDN GND 8 7 6 5 TOP VIEW DS1088C 1 2 A OUT GND B VCC PDN + DS1088C EP + 1 2 3 4 OUT VCC VCC GND WLP TDFN (3mm x 3mm) 引脚/焊球说明 引脚/焊球 名称 功能 TDFN-EP WLP 1 A1 2, 3 B1 VCC 电源。 4, 5 A2 GND 地。 6 B2 PDN 低电平有效关断。引脚为高电平时，使能振荡器。引脚为低电平时，禁止振荡器 (关断模式)。 7, 8 — DNC — Maxim Integrated — OUT EP 振荡器输出。 不连接。DNC引脚内部连接至地。 裸焊盘(TDFN封装)。内部连接至GND，连接至接地区域，将注入噪声降至最小。 不作为器件的电气连接。 5 DS1088C 固定频率EconoOscillator™ 详细说明 DS1088C低成本时钟发生器无需外部定时元件，即可输出 方波。固定频率振荡器经过了工厂校准，工作在133MHz 频率。DS1088C具有关断引脚，适用于功耗敏感应用，图1 所示为DS1088C方框图。 输出频率 应用信息 电源去耦 使用DS1088C时，为达到最佳结果，必须用0.01μF和0.1μF 高质量、陶瓷、表贴电容对电源进行去耦。表贴元件将引线 电阻降至最小，从而改善性能，并且为去耦应用提供足够的 高频响应。这些电容应尽量靠近VCC和GND引脚安装。 内部振荡器频率由工厂编程的预分频器进行分频，产生 133MHz输出频率。 关断模式 芯片信息 SUBSTRATE CONNECTED TO GROUND PDN引脚禁用内部振荡器和振荡器输出，以满足功率敏 感应用的要求。关断引脚必须在至少两个输出频率周期 +10μs的时间内保持低电平，以消除尖峰脉冲的影响。上 电时，禁用输出，直到电源稳定，并且压控振荡器产生 512个时钟周期。 VCC VCC EEPROM CONTROL PDN VOLTAGECONTROLLED OSCILLATOR 80MHz TO 160MHz PRESCALER ÷ BY 1, 2, 4...256 OUT 133MHz GND DS1088C 图1. 方框图 Maxim Integrated 6 DS1088C 固定频率EconoOscillator™ 定购信息 FREQUENCY (MHz) TEMP RANGE PIN-PACKAGE DS1088CN-133+T PART 133.3 -20NC to +85NC 8 TDFN-EP* DS1088CX-133+T 133.3 -20NC to +85NC 4 WLP +表示无铅(Pb)/符合RoHS标准的封装。 T = 卷带包装。 *EP = 裸焊盘。 封装信息 如需最近的封装外形信息和焊盘布局(占位面积)，请查询china.maximintegrated.com/packages。请注意，封装编码中的“+”、“#” 或“-”仅表示RoHS状态。封装图中可能包含不同的尾缀字符，但封装图只与封装有关，与RoHS状态无关。 封装类型 封装编码 外形编号 焊盘布局编号 8 TDFN-EP T833+2 21-0137 4 WLP W41D1+1 21-0455 90-0059 参见应用笔记1891 Maxim Integrated 7 DS1088C 固定频率EconoOscillator™ 修订历史 修订号 0 修订日期 3/12 说明 最初版本。 修改页 — Maxim北京办事处 北京8328信箱 邮政编码100083 免费电话：800 810 0310 电话：010-6211 5199 传真：010-6211 5299 Maxim不对Maxim产品以外的任何电路使用负责，也不提供其专利许可。Maxim保留在任何时间、没有任何通报的前提下修改产品资料和规格的权利。电气 特性表中列出的参数值(最小值和最大值)均经过设计验证，数据资料其它章节引用的参数值供设计人员参考。 Maxim Integrated 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-10 00 8 © 2012 Maxim Integrated Maxim标志和Maxim Integrated是Maxim Integrated Products, Inc.的商标。