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ADM1064ACP Datenblatt(PDF) 1 Page - Analog Devices |
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ADM1064ACP Datenblatt(HTML) 1 Page - Analog Devices |
1 / 32 page Super Sequencer™ with Voltage Readback ADC ADM1064 Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.326.8703 © 2004 Analog Devices, Inc. All rights reserved. FEATURES Complete supervisory and sequencing solution for up to 10 supplies 10 supply fault detectors enable supervision of supplies to better than 1% accuracy 5 selectable input attenuators allow supervision: Supplies up to 14.4 V on VH Supplies up to 6 V on VP1–4 5 dual-function inputs, VX1–5: High impedance input to supply fault detector with thresholds between 0.573 V and 1.375 V General-purpose logic input 10 programmable output drivers (PDO1–10): Open collector with external pull-up Push/pull output, driven to VDDCAP or VPn Open collector with weak pull-up to VDDCAP or VPn Internally charge-pumped high drive for use with external N-FET (PDO1–6 only) Sequencing engine (SE) implements state machine control of PDO outputs: State changes conditional on input events Enables complex control of boards Power-up and power-down sequence control Fault event handling Interrupt generation on warnings Watchdog function can be integrated in SE Program software control of sequencing through SMBus 12-bit ADC for readback of all supervised voltages 2 auxiliary (single-ended) ADC inputs Reference input, REFIN, has 2 input options: Driven directly from 2.048V (±0.25%) REFOUT pin More accurate external reference for improved ADC performance Device powered by the highest of VP1–4, VH for improved redundancy User EEPROM: 256 bytes Industry-standard 2-wire bus interface (SMBus) Guaranteed PDO low with VH, VPn = 1.2 V 40-lead 6 mm × 6 mm LFCSP and 48-lead 7 mm × 7 mm TQFP packages FUNCTIONAL BLOCK DIAGRAM PDO7 PDO8 PDO9 PDO10 PDOGND VDDCAP VDD ARBITRATOR GND VX1 VX2 VX3 VX4 VX5 VP1 VP2 VP3 VP4 VH AGND PROGRAMMABLE RESET GENERATORS (SFDs) DUAL- FUNCTION INPUTS (LOGIC INPUTS OR SFDs) SEQUENCING ENGINE CONFIGURABLE OUTPUT DRIVERS (HV CAPABLE OF DRIVING GATES OF N-CHANNEL FET) CONFIGURABLE OUTPUT DRIVERS (LV CAPABLE OF DRIVING LOGIC SIGNALS) PDO1 PDO2 PDO3 PDO4 PDO5 PDO6 SDA SCL A1 A0 SMBus INTERFACE REFOUT REFIN AUX2 AUX1 REFGND VREF 12-BIT SAR ADC EEPROM ADM1064 Figure 1. APPLICATIONS Central office systems Servers/routers Multivoltage system line cards DSP/FPGA supply sequencing In-circuit testing of margined supplies GENERAL DESCRIPTION The ADM1064 is a configurable supervisory/sequencing device that offers a single-chip solution for supply monitoring and sequencing in multiple supply systems. In addition to these functions, the ADM1064 integrates a 12-bit ADC which can be used to accurately read back up to 12 separate voltages. (continued on Page 3) |
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