32.768kHz output Tuning fork Quartz Crystal Oscillator IC

Transcription

1 32.768kHz output Tuning fork Quartz Crystal Oscillator IC GENERAL DESCRIPTION PACKAGE OUTLINE The NJU6229 is a CMOS oscillator IC which is designed for kHz tuning fork quartz unit. The NJU6229 is ultra-small IC realizing to micro size oscillator NJU6229XC-V unit. The oscillation current is ultra-low power consumption 1.00μA(TYP). This is applicable for the portable devices requiring small sized and low power XO module. The operating voltage is from 1.62 to 5.50V. The 3-state output buffer is C-MOS compatible of fan-out. FEATURES Oscillation Frequency kHz Wide Operating Voltage 1.62 to 5.50V Low power consumption 1.00μA ( =1.80V, No load) Output Disable Function 3-State Output Buffer Variable Pull-up Resistance on-die Oscillation Capacitors Cg and Cg on-die Package Outline Die/Diced Wafer C-MOS Technology BLOCK DIAGRAM Regulator Rf Cg Cd Level Shifter 3-State Buffer OSC Detector 2016/7/01 ( 1 / 7 )

2 LINE-UP TABLE Type No. Type A Version Type C NJU6229 A C PAD LOCATION Type A ( For Flip Chip Bonding ) Type C ( For Wire Bonding ) 1 VSS 6 FOUT 1 VDD 6 FOUT Y 2 VDD 5 2 VSS X COORDINATES Pad No. X Y Starting Point: Die Center Unit[μm] Die Size: x 0.534mm Die Thickness (WS/C-V): μm Die Substrate: leve Pad size: Type-A: 80 x 80μm Type-C: 80 x 80μm PART NUMBER NJU Version Device name WS-V: Diced Wafer (130µm) C-V: Chip (130μm) 2016/7/01 ( 2 / 7 )

3 TERMINAL DESCRIPTION SYMBOL FUNCTION 3-state Output Buffer Control Terminal H or OPEN Output of f 0 L High-Z Quartz Crystal Connecting Terminals GND Terminal (Vss=0V) Frequency Output =1.62 to 5.50V FUNCTIONAL DESCRIPTION Output Disable Function When Terminal goes Low, the Terminal output becomes High impedance. Oscillator High(Open) Frequency output Normal operation Low Hi-Z Normal operation Variable Pull-up Resistance The Terminal pull-up resistance changes in response to the input level. When is tied LOW level, the pull-up resistance is large, reducing the current consumed by the resistance. When is left open circuit, the pull-up resistance is small, which increases the input susceptibility to external noise. However, the pull-up resistance ties the Terminal High level to prevent external noise from unexpectedly stopping the output. ABSOLUTE MAXIMUM RATINGS ( =0V, Ta=25 C) PARAMETER SYMBOL RATING UNIT Supply Voltage -0.5 to +6.0 V Input Voltage V IN -0.5 to +0.5 V Output Voltage V O -0.5 to +0.5 V Input Current I IN 10 ma Output Current I O 25 ma Operating Temperature Range Topr -40 to to +125(Note3) C Storage Temperature Range Tstg -55 to +150 C Note1) If the supply voltage( ) is less than 6.0V, the input voltage must not over the level though 6.0V is limit specified Note2) Decupling capacitor should be connected between and due to the stabilized operation for the circuit. Note3) Apply to > 2.25V Condition. 2016/7/01 ( 3 / 7 )

4 ELECTRICAL CHARACTERISTICS (Ta=+25 C) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNIT Operating Voltage Ta=-40 to +85 O C f OSC Ta=-40 to +125 O C =32.768kHz V Input Voltage V IN V Output Voltage V OUT 0 - V ( =1.62 to 5.50V, =0V, Ta=+25 C) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNIT =1.80V, No Load =2.50V, No Load VDD=3.30V, No load Operating Current I DD =5.00V, No load =1.80V, CL=15pF µa =2.50V, CL=15pF =3.30V, CL=15pF =5.00V, CL=15pF VDD=1.80V, =, No load Oscillation Stopping Current I STB VDD=2.50V, =, No load VDD=3.30V, =, No load µa VDD=5.00V, =, No load High level Output Voltage Low level Output Voltage Input Voltage 3-state Off Leakage Current V OH I OH =-400uA, =1.62V~3.63V -0.4 V V OL I OL =400uA, =1.62V~3.63V 0.4 V V IH 0.7 V V IL 0.3 V I OZ =, = or ±0.1 µa 2016/7/01 ( 4 / 7 )

5 ( =1.62 to 5.50V, =0V, Ta=+25 C) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNIT Feedback Resistance Rf 25 MΩ Internal Capacitor Cg fosc=32.768khz 7 pf Cd fosc=32.768khz 8.5 pf Output Signal Symmetry SYM Ta=-40 to +85 O C Ta=-40 to +125 O C VDD=2.25 to 5.5V / Output Signal Rise Time tr C L =15pF 0.1 to ns Output Signal Fall Time tf C L =15pF 0.9 to ns Output Disable time t POZ C L =15pF, R L =1kΩ 500 ns Output Enable Time t PZO C L =15pF 50 µs Oscillation Start up t OSC ms Time Note4) The oscillation frequency range has used NJRC s standard crystal for measurement. However it is not guaranteed. (Refer to EXAMPLE OF CRYSTAL PARAMETERS FOR MEASUREMENT CIRCUITS) % (1)Output Signal 5 Vdd(V) t OSC Time(ms) 2016/7/01 ( 5 / 7 )

6 EXAMPLE OF CRYSTAL PARAMETERS FOR MEASUREMENT CIRCUITS L1 C1 R1 f0[khz] R1[Ω] L1[H] C1[fF] C0[pF] C k MEASUREMENT CIRCUITS (1) Operating Current, Standby Current, Output Signal Symmetry, Output Signal Rise/Fall Time (C L =15pF) 1/2 H L I DD : Open I STB : Short C L=No Load / 15pF 90% 50% 10% tr tf (2) Input Current Note5) A (3) Output Disable Time (C L =15pF,R L =1kΩ) Pulse Generator Note5) R L=1kΩ C L=15pF 0.2 t POZ 0.1V 50Ω 2016/7/01 ( 6 / 7 )

7 (4) Output Enable Time (C L =15pF) Pulse Generator Pulse Generator Note5) C L=15pF V OH 0.8 t PZO 50Ω 50Ω (5) Start up time t OSC Note5) Note5) Decoupling capacitor between and is, should shorten the wiring as much as possible [CAUTION] The specifications on this data book are only given for information, without any guarantee as regards either mistakes or omissions. The application circuits in this data book are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. 2016/7/01 ( 7 / 7 )

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