Ordering number : ENA0205A LA1654C Monolithic Linear IC Time Code Reception IC http://onsemi.com Overview The LA1654C time code reception IC receives long-wave time standard broadcasts (such as the Japanese JJY and German DCF77 standards) and detects and outputs the time code superposed on the long-wave signal. Applications can automatically correct their clock's time setting by using the time code received by the LA1654C. Note that the LA1654C is a bare chip product that is not packaged. Function • RF amplifier, rectifier, detector, time code output, and standby circuit. Features • Low-voltage operation (operating VCC as low as 1.5V). • Standby mode current drain less than or equal to 0.05μA. Japan : JJY 40/60kHz Germany : DCF77 77.5kHz Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Allowable power dissipation Symbol Conditions Ratings Unit VCC max Pd max Ta ≤ 70°C 5.0 V 10 mW Operating temperature Topr -20 to +70 °C Storage temperature Tstg -40 to +125 °C Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. Recommended Operating Conditions at Ta = 25°C Parameter Symbol Conditions Ratings min typ max Unit Recommended supply voltage VCC 1.5 3.0 V Operating supply voltage range VCC op 1.1 3.6 V Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended Operating Ranges limits may affect device reliability. ORDERING INFORMATION See detailed ordering and shipping information on page 5 of this data sheet. Semiconductor Components Industries, LLC, 2014 April, 2014 42114NK/92706/12506MSOT B8-7046 No.A0205-1/5 LA1654C Operating Characteristics at Ta = 25°C, VCC = 3.0V * : Packaged in a VSON16 package and measured using the SON11T016-001-MF socket (Yamaichi Electronics Co., Ltd.) Overall Characteristics Parameter Symbol Conditions Quiescent current ICCO No input, PAD15 = 0V, PAD10 = 3V Standby mode current drain ISTB PAD15 = 3.0V Ratings min typ 30 37 max Unit 50 μA 0.05 μA AGC Amplifier Input Characteristics Parameter Symbol Input impedance Conditions ZI PAD1 Input frequency range FIN PAD1 Minimum input voltage VMIN PAD1 input level Maximum input voltage VMAX PAD1 input level Ratings min typ max 800 37.5 Unit kΩ 80.0 1 100 kHz μVrms mVrms TCO Output Characteristics - Input signal = PAD1, fin = 40kHz, PAD10 = 3V, PAD15 = 0V Parameter Symbol High-level output voltage Conditions Ratings min typ PAD11 output level Low-level output voltage VOL PAD11 output level 0.1 V Output pulse width T500 VIN = 0 to 100dBμV, AM modulation (1Hz square wave, duty = 50%, 10:1 modulation) 400 520 600 ms T800 VIN = 0 to 100dBμV, AM modulation (1Hz square wave, duty = 80%, 10:1 modulation) 600 730 800 ms T200 VIN = 0 to 100dBμV, AM modulation (1Hz square wave, duty = 20%, 10:1 modulation) 200 300 400 ms Output pulse width (800 ms input) Output pulse width (200 ms input) 3.0 Unit VOH (500 ms input) 2.9 max 0 V STB Control Characteristics Parameter Symbol Conditions Ratings min typ max Unit Standby on voltage VSH PAD15 DC voltage 2.9 3.0 Standby off voltage VSL PAD15 DC voltage 0 0.1 V V High-level pin input current ISH PAD15 = 3V 0.1 μA Low-level pin input current ISL PAD15 = 0V 0.3 μA HOLD Control Characteristics - PAD15 = 0V Parameter Symbol Conditions Ratings min typ max Unit Hold on voltage VHL PAD10 DC voltage 0 0.1 V Hold off voltage VHH PAD10 DC voltage 2.9 3.0 V High-level pin input current IHH PAD10 = 3V 0.1 μA Low-level pin input current IHL PAD10 = 0V 0.3 μA Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be indicated by the Electrical Characteristics if operated under different conditions. No.A0205-2/5 LA1654C Chip Specifications Parameter Conditions Ratings Chip size Unit mm2 1.26×2.00 330(±20) μm 127.5×127.5 μm2 105×105 μm2 Chip thickness Pad size Pad opening PAD Coordinates PAD X-Axis Y-Axis PAD P1 902 151 P2 1109 P3A P3B P4 X-Axis Y-Axis TEST PAD 776.5 1849 299.5 P9 368.5 1849 1109 717.5 P10 151 1747 1109 508.5 P11 151 1600 1109 926.5 P12 151 1453 P5 1109 1073.5 P13 151 547 P6A 1109 1282.5 P14 151 400 P6B 1109 1491.5 P15 151 253 P7 1109 1700.5 P16 368.5 151 P8 926 1849 Notes 1. The left upper corner of the Pad Layout Diagram on the following page is the origin, the X axis increases to the right and the Y axis increases in the downward direction. 2. Units : μm 3. The pad coordinates give the coordinate values of the center of the pads. 4. Both of each of the pairs P3A/P3B (VCC) and P6A/P6B (ground) must be bonded. 5. The test pads must not be connected (NC). No.A0205-3/5 LA1654C Pad Layout Diagram PCA00620 Block Diagram NFB Cap. Stand-by Switch AGC Cap. (Filter Cap.) REC Cap. TCO Hold Switch Filter Output 16 15 14 13 12 11 10 9 VCC RECTIFIER AMP AGC-AMP DECODER FILTER AGC REGULATOR VCC VCC GND VCC 2 3 4 5 6 7 8 AGC Amp-Input 1 AGC Amp-Input 2 VCC AGC Amp-Output 1 AGC Amp-Output 2 GND REC.-Input (Filter Cap.) PCA00621 1 No.A0205-4/5 LA1654C Test Circuit Diagram 0.22μF AGC HOLD 0.01μF NORMAL NORMAL STANDBY TCO 0.47μF 0.22μF 750kΩ 16 15 REGULATOR 14 13 AGC FILTER VCC AGCAMP AMP 2 3 10 4.8MΩ VCC 9 VCC 55kΩ 55kΩ RECTIFIER GND 4 5 6 7 8 A ICC 50Ω 0.47μF 11 DECODER VCC 6.6MΩ 1 12 0.1μF VCC 3.0V 0.47μF 47kΩ 40kHz crystal Signal Generator : Zo=50Ω PCA00622 ORDERING INFORMATION Device LA1654C-X1 Package Chip (Pb-Free) Shipping (Qty / Packing) 2250 / Waffle Pack ON Semiconductor and the ON logo are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. 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