- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄67321 > 5962-0423502KXC SYNCHRO OR RESOLVER TO DIGITAL CONVERTER, CQFP52 PDF資料下載
參數(shù)資料
| 型號(hào)： | 5962-0423502KXC |
| 元件分類： | 位置變換器 |
| 英文描述： | SYNCHRO OR RESOLVER TO DIGITAL CONVERTER, CQFP52 |
| 封裝： | 0.956 X 0.956 INCH, 0.100 INCH HEIGHT, HERMETIC SEALED, CERAMIC, QFP-52 |
| 文件頁(yè)數(shù)： | 1/23頁(yè) |
| 文件大?。?/td> | 259K |
| 代理商： | 5962-0423502KXC |
當(dāng)前第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)
SCD5028-1 Rev J
FEATURES
Radiation performance
- Total Dose: 1Mrad (Si)
- SEL Immune: >100MeV-cm2/mg
+5VDC power only
Programmable: By using a few non critical external resistors and capacitors
- Resolution: 10, 12, 14 or 16 bit resolution
- Bandwidth
- Tracking rate
Low power: +5V @ 20 mA typ
45 to 30,000 Hz carrier frequency range
Accuracy to 5.3 Arc Minutes
Differential instrument amplifiers resolver input
-55° to +125°C Operating Temperature
Digital interface logic voltage of 3.3V to 5V
Packaging – Hermetic
- 52 Pin Ceramic QUAD flat package (CQFP), .956" SQ x .10"Ht max
- Weight: 5.0g max
Evaluation board available for test and evaluation. See Aeroflex Application note AN5028-1
Standard Microcircuit Drawing (SMD): 5962-0423501/02
NOTE: Aeroflex Plainview does not currently have a DSCC Certified Radiation Hardened Assurance Program
ACT5028B 16-Bit Monolithic Tracking
Standard Products
Rad Tolerant Resolver-To-Digital Converter
APPLICATIONS
This single chip Resolver-to-Digital Converter (RDC) is used in shaft angle control systems, and is suitable for space
or other radiation environments that require >1MRad (Si) total dose tolerance. The part is latchup free in heavy ion
environments (e.g., geosynchronous orbits) and is estimated to experience SEU induced errors of less than 15
minutes of arc at a rate of 1 per device per 2 years when operating dynamically.
THEORY OF OPERATION
The ACT5028B converter is a single CMOS Type II tracking resolver to digital converter monolithic chip. It is
implemented using precision analog circuitry and digital logic. For flexibility, the converter bandwidth, dynamics
and velocity scaling are externally set with passive components. Refer to Figure 1, ACT5028B Block Diagram.
The converter is powered from +5VDC. Analog signals are referenced to signal ground, which is nominally VCC/2.
The converter consists of three main sections; the Analog Control Transformer (CT), the Analog Error Processor
(EP) and the Digital Logic Interface.
The CT has two analog resolver inputs (Sin and Cos) that are buffered by high impedance input instrumentation type
amplifiers and the 16 bit digital word which represents the output digital angle. The CT performs the ratiometric
trigonometric computation of:
SIN(A) sin(wt) COS(B) – COS(A) sin(wt) SIN(B) = SIN(A-B) sin(wt)
Utilizing amplifiers, switches, logic and resistors in precision ratios. “A” represents the resolver angle, “B“
represents the digital angle and sin(wt) represents the resolver reference carrier frequency.
The Error Processor is configured as a critically damped Type II loop. The AC error, SIN (A-B) sin (wt) is full wave
demodulated using the reference squared off as its drive. This DC error is integrated in an analog integrator yielding
a velocity voltage which in turn drives a Voltage Controlled Oscillator (VCO). This VCO is an incremental integrator
(constant voltage input to position rate output) which, together with the velocity integrator, forms a Type II loop. A
lead is inserted to stabilize the loop and a lag is inserted at a higher frequency to attenuate the carrier frequency
ripple. The error processor drives the 16 bit digital output until it nulls out. Then angle “A” = “B”. The digital output
equals angle input to the accuracy of the precision control transformer. The various error processor settings are done
with external resistors and capacitors so that the converter loop dynamics can be easily controlled by the user.
The digital logic interface has a separate power line, VLI/O that sets the interface logic 1 level. It can be set anywhere
from +3V to the +5V power supply.
September 30, 2008
www.aeroflex.com/RDC
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 5962-0423501KXA | SYNCHRO OR RESOLVER TO DIGITAL CONVERTER, CQFP52 |
| 5962-0423501KXC | SYNCHRO OR RESOLVER TO DIGITAL CONVERTER, CQFP52 |
| 5962-0520601QZC | PROPRIETARY METHOD ADC, CQFP128 |
| 5962-0520601VZX | PROPRIETARY METHOD ADC, CQFP128 |
| 5962-0520601VZC | PROPRIETARY METHOD ADC, CQFP128 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 5962-0423801KXA | 制造商:International Rectifier 功能描述:Module DC-DC 1-OUT 3.3V 3.03A 10W 7-Pin Case S 制造商:International Rectifier 功能描述:SINGLE CHANNEL 3.3 VOLT - Bulk |
| 5962-0423901KXA | 制造商:International Rectifier 功能描述:MICROCIRCUIT, HYBRID,5 VOLT,SINGLE CHANNEL,DC/DC CONVERTEER - Bulk |
| 5962-0424201KXA | 制造商:International Rectifier 功能描述:Module DC-DC 2-OUT 5V/-5V 1.6A 10W 7-Pin Case S 制造商:International Rectifier 功能描述:CONVERTER +/-5 VOLT, DUAL - Bulk |
| 5962-0425101HXC | 制造商:International Rectifier 功能描述:DC/DC CONVERTER, DUAL CHANNEL, +/-15 VOLT, HYBRID - Bulk |
| 5962-0520801QXC | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Rad Hard 512K x 8 5V Tolerant Very Low Power CMOS SRAM |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。