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d a t a sh eet preliminary speci?cation supersedes data of 1998 may 18 2000 may 19 discrete semiconductors UZZ9000 sensor conditioning electronic
2000 may 19 2 philips semiconductors preliminary speci?cation sensor conditioning electronic UZZ9000 features one chip fully integrated signal conditioning ic accuracy better than 1 together with kmz41 in 100 angle range temperature range from - 40 to 150 c adjustable angle range adjustable zero point. general description the UZZ9000 is an integrated circuit that combines two sinusoidal signals (sine and cosine) into one single linear output signal. when used in conjunction with the magnetoresistive sensor kmz41 it provides a measurement system for angles up to 180 . the UZZ9000 can also be used for other applications in which an angle has to be calculated from a sine and a cosine signal. a typical application would be any kind of resolver application. the two input signals are converted into the digital domain with two separate ad-converters. a cordic algorithm performs the inverse tangent transformation. since todays applications typically require analog output signals (e.g. potentiometers), the resulting signal is transferred back to the analog domain. the UZZ9000 enables the user to set both the angle range and the zero point offset. these ranges are set by external voltage dividers. pinning notes 1. connected to ground. 2. pin to be left unconnected. symbol pin description +v o2 1 sensor 2 positive differential input +v o1 2 sensor 1 positive differential input v dd2 3 digital supply voltage v ss 4 digital ground gnd 5 analog ground rst 6 reset of the digital part; note 1 test1 7 for production test; note 1 test2 8 note 2 data_clk 9 trim-mode data-clock; note 1 smode 10 serial mode programmer; note 1 test3 11 note 2 v out 12 output voltage var 13 angle-range input set v of?n 14 offset input set offs2 15 offset trimming input sensor 2 offs1 16 offset trimming input sensor 1 v dda 17 analog supply voltage gnd 18 analog ground test4 19 for production test; note 1 test5 20 for production test; note 1 v dd1 21 digital supply voltage t out 22 test output - v o2 23 sensor 2 negative differential input - v o1 24 sensor 1 negative differential input quick reference data note 1. v dda , v dd1 and v dd2 must be connected to the same supply voltage. symbol parameter conditions min. typ. max. unit v dda supply voltage note 1 4.5 5 5.5 v v dd1 supply voltage note 1 4.5 5 5.5 v v dd2 supply voltage note 1 4.5 5 5.5 v i cctot total supply current - 13 15 ma a angle range in 10 steps with kmz41 30 - 180 deg a accuracy with ideal input signal; range = 100 0.45 -- deg
2000 may 19 3 philips semiconductors preliminary speci?cation sensor conditioning electronic UZZ9000 limiting values in accordance with the absolute maximum rating system (iec 60134). thermal characteristics esd sensitivity symbol parameter conditions min. max. unit v dda supply voltage - 0.3 +6 v v dd1 supply voltage - 0.3 +6 v v dd2 supply voltage - 0.3 +6 v v pin voltage at all pins - 0.3 v dd v t stg storage temperature - 55 +150 c t j operating temperature 125 to 150 c; max 200 hours - 40 +150 c symbol parameter value unit r th j-a thermal resistance from junction to ambient 80 k/w symbol parameter conditions value unit esd esd sensitivity human body model 2 kv machine model 150 v
2000 may 19 4 philips semiconductors preliminary speci?cation sensor conditioning electronic UZZ9000 electrical characteristics t amb = - 40 to +150 c; v dd = 4.5 to 5.5 v; typical characteristics for t amb =25 c and v dd = 5 v unless otherwise speci?ed. symbol parameter conditions min. typ. max. unit v dda supply voltage 4.5 5 5.5 v v dd1 supply voltage 4.5 5 5.5 v v dd2 supply voltage 4.5 5 5.5 v i dd supply current without load - 10 15 ma (+v o )-( - v o ) differential input voltage referred to v dd 6.6 - 28 mv/v common mode range referred to v dd 490 - 510 mv/v lost magnet threshold referred to v dd - 3 - mv/v f ext external clock frequency for trim interface 0.1 - 1 mhz f int internal clock frequency t j = - 40 to 150 c 2.3 4 5.7 mhz c load output load -- 50 pf with series resistance >300 w -- 200 nf v reset switching voltage threshold for power on/off between falling and rising v dd 2.8 - 4.5 v hysteresis - 0.3 - v out output voltage range for valid ranges lower bound 5 - 6% v dd upper bound 94 - 95 % v dd v d diagnostic area for irregular input signal 0 - 4% v dd 96 - 100 % v dd a accuracy with ideal input signal; range = 100 0.45 -- degree res resolution range = 100 0.1 -- degree t on power up time -- 20 ms t r response time to 95% of ?nal value - 0.7 1.2 ms v lm sensor voltage lost magnet threshold 12 15 20 mv functional description the UZZ9000 is a mixed signal ic for angle measurement systems. the UZZ9000 has been designed for the double sensor kmz41. it combines two analog signals (sine and cosine) into a linear output signal. the analog measurement signals on the ic input are converted to digital data by two adcs. each adc is a sigma-delta modulator employing a 4th order continuous time architecture with an over-sampling ratio of 128 to achieve high resolution. the converter output is a digital bit-stream with an over-sampling frequency of typically 500 khz. the bit-stream is fed into a decimation filter which performs both low pass filtering and down-sampling. the ic has two input channels each of which has its own adc and decimation filter. the two decimation filter outputs are 15-bit digital words at a lower frequency of typically 3.9 khz which is the typical sampling frequency of the sensor system. the digital representations of the two signals are then used to calculate the current angle by the alu. this calculation is carried out using the so-called cordic algorithm. the angle is represented by a 13-bit resolution. a dac converts the digital signal back to the analog domain.
2000 may 19 5 philips semiconductors preliminary speci?cation sensor conditioning electronic UZZ9000 handbook, full pagewidth mhb694 adc1 decimation filter alu dac output angle range offset data-clk smode control oscillator + v o1 - v o1 adc2 reset UZZ9000 reset decimation filter + v o2 - v o2 fig.1 block diagram. the following list gives a short description of the relevant block functions: 1. the adc block contains two sigma delta ad converters, sensor offset correction circuitry and the circuitry required for the sensitivity and offset adjustment of the chip output voltage curve. 2. the decimation filter block comprises two digital low pass decimation filters convert the low resolution high speed bit stream output from the adcs into a low speed digital word. 3. the alu block derives an angle value from the two digital inputs using the cordic algorithm. 4. the dac converts the output of the alu block to an analog signal. 5. the control block provides the clock and the control signals for the chip. 6. the reset block supplies a reset signal during power-up and power-down when the power supply is below a certain value. 7. the oscillator generates the master clock. angle range selection in order to accommodate varying applications, both the mechanical input angular range of the UZZ9000 and the zero point of the output curve are user programmable. this section describes how to select a desired mode. the output curve is adjusted by changing the angular range as shown in fig.2. without any zero point offset, the ramp-up starts at mechanical 0 ( a 1=0 ). when using a kmz41 sensor, the maximum angular range da is 0 to 180 . for the UZZ9000, smaller angular ranges can be set. in this case, a 2 becomes smaller than 180 and the output curve is clipped at this position. the location of discontinuity x d (change from lower to upper clipping area) depends on the adjusted range and can be calculated as follows: in order to compensate for tolerances, the zero point of the output curve can be shifted by 5? in steps of 0.5 . the effect of this measure is shown in fig.3. now a 1 is no longer identical with mechanical 0?, but with the zero point shift x off . consequently, the location of discontinuity x d can be calculated as follows: x d da 180 da C 2 -------------------------- + = x d x off da + 180 da C 2 -------------------------- + =
2000 may 19 6 philips semiconductors preliminary speci?cation sensor conditioning electronic UZZ9000 handbook, full pagewidth mhb695 a 1 a / 180 ( 360 ) 0 a 2 da db db v out fig.2 output curve for different angular ranges. when using mr sensors (kmz41), the signal period is 0 ? to 180 ? as the signals are proportional to sin2 a and cos2 a . handbook, full pagewidth mhb696 a 1 a / 180 ( 360 ) 0 a 2 da db db v out x off fig.3 output curve for different angular ranges including a zero point offset. when using mr sensors (kmz41), the signal period is 0 ? to 180 ? as the signals are proportional to sin2 a and cos2 a .
2000 may 19 7 philips semiconductors preliminary speci?cation sensor conditioning electronic UZZ9000 angle range setting to select one of 16 different angular ranges, an external voltage (see table 1) must be applied to pin 13 of the UZZ9000 (var). during the ics initialisation phase, which directly follows power-on reset or an external reset, this voltage is read and then converted into the digital domain. the digital value is stored until the next reset state occurs. consequently, the angular range cannot be changed during normal operation but is still fixed after initialisation phase. note that the voltage at pin 13 must be ratiometric to v dda and also stable over temperature and lifetime. this is ensured, for instance, when providing this voltage via a (trimmable) resistor divider connected to v dda , which is the analog supply of the UZZ9000. the following defines the % value of the supply voltage v dda that must be supplied to pin 13 to select a certain range. when using the 30 angular range, a constant zero point offset of 15 is added. consequently, when using the 30 range, the zero point offset can be programmed between 10 and 20 only (see zero point offset setting). table 1 de?nition of voltages to set UZZ9000 angular ranges zero point offset setting to adjust the zero point offset or to set it to 0 , an external voltage has to be applied to the UZZ9000 at pin 14 (voffin). the function is similar to that described previously. after reset the voltage is read, converted into the digital domain and then stored until another reset state occurs. consequently, the zero point offset cannot be adjusted without a reset. it is recommended to use a resistor divider connected to v dda to generate this voltage. table 2 defines the allowed voltage ranges as a percentage of the supply v dda . table 2 de?nition of voltages to set a certain zero point offset offset trimming to achieve a linear output characteristic, it is necessary to adapt the offsets of the two input signals to the input stage of the UZZ9000. for this reason a sensor offset cancellation procedure has been implemented in the UZZ9000 which is started by sending a special serial data protocol to the UZZ9000. this trimming procedure is required for both input signals. angular range ( ) min. (%) nom. (%) max. (%) unit (%) 0 to 30 33.47 33.73 33.99 v dda 0 to 40 35.69 35.95 36.21 v dda 0 to 50 37.91 38.17 38.43 v dda 0 to 60 40.14 40.40 40.66 v dda 0 to 70 42.36 42.62 42.88 v dda 0 to 80 44.58 44.84 45.10 v dda 0 to 90 46.80 47.06 47.32 v dda 0 to 100 49.02 49.28 49.54 v dda 0 to 110 51.25 51.51 51.77 v dda 0 to 120 53.47 53.73 53.99 v dda 0 to 130 55.69 55.95 56.21 v dda 0 to 140 57.91 58.17 58.43 v dda 0 to 150 60.13 60.39 60.65 v dda 0 to 160 62.36 62.62 62.88 v dda 0 to 170 64.58 64.84 65.10 v dda 0 to 180 66.80 67.06 67.32 v dda zero point offset ( ) min. (%) nom. (%) max. (%) unit (%) - 5 33.47 33.73 33.99 v dda -4. 5 35.14 35.40 35.66 v dda - 4 36.80 37.06 37.32 v dda - 3.5 38.47 38.73 38.99 v dda - 3 40.13 40.39 40.65 v dda - 2.5 41.80 42.06 42.32 v dda - 2 43.47 43.73 43.99 v dda - 1.5 45.13 45.39 45.65 v dda - 1 46.80 47.06 47.32 v dda - 0.5 48.60 48.72 48.98 v dda 0 50.13 50.39 50.65 v dda 0.5 51.80 52.06 52.32 v dda 1 53.46 53.72 53.98 v dda 1.5 64.58 55.39 55.65 v dda 2 56.79 57.05 57.31 v dda 2.5 58.46 58.72 58.98 v dda 3 60.13 60.39 60.65 v dda 3.5 61.79 62.05 62.31 v dda 4 63.46 63.72 63.98 v dda 4.5 65.12 65.38 65.64 v dda 5 66.79 67.05 67.31 v dda
2000 may 19 8 philips semiconductors preliminary speci?cation sensor conditioning electronic UZZ9000 trim interface the serial interface used to switch the UZZ9000 into trim mode consists of the two terminals smode (pin 10) and data_clk (pin 9). the structure of this protocol is shown in fig.4. all signal levels at data_clk and smode must be selected according to the requirements listed in table 3. the following points must be taken into account with regard to the asynchronous protocol. the protocol starts with a falling edge at the smode, which must occur at a high data_clk level. the following five bits are used to code the message sent to the UZZ9000. they are transferred via the smode and are sampled with the rising edge of the data_clk. during the fifth high level output of data_clk (counted from the start condition onwards), a rising edge must appear at the smode and the data_clk follows this with one more change to low level in order to successfully complete the protocol. handbook, full pagewidth mhb697 data_clk (input at pin 9) smode (input at pin 10) tout (output at pin 22) 12345 stop condition status bit start condition t1 t0 fig.4 protocol used to set UZZ9000 into trim mode. table 3 de?nition of the trim interface signals how to enter the trim mode the status bits to be transmitted to the UZZ9000 are shown in table 4. note that a complete protocol has to be sent before normal operation can be resumed. the trim mode can also be exited by resetting the device. after entering one of the trim modes and provided there is a dynamic input signal, a square wave output is visible at the terminal t out (pin 22). parameter min. nom. max. unit UZZ9000 supply voltage 4.5 5 5.5 v low level of data_clk, smode 0 - 5%v dd high level of data_clk, smode 95 - 100 %v dd rise and fall time of data_clk and smode signal edges (10 to 90% v dd ) and (90 to 10% v dd ) 8 -- ns data_clk frequency 0.1 - 1 mhz
2000 may 19 9 philips semiconductors preliminary speci?cation sensor conditioning electronic UZZ9000 table 4 programming of trim modes mode status bits 12345 enter trim mode for sensor input channel 1 0 0 0 1 0 enter trim mode for sensor input channel 2 0 0 1 0 0 leave trim mode for either input channel 0 0 0 0 0 reset in addition to the external reset pin (pin 6), the uzz9001 provides an internal power-up/ power-down reset logic which continuously monitors the supply voltage. when the supply voltage increases and reaches a safe level, reset becomes inactive and the device starts initialization. when the supply voltage exceeds the safe voltage level, the device is reset immediately. this internal reset logic can be over-ridden by the external pin res (pin 6) in all modes and at any time. the reset pin res (pin 6) is active when in the high position. it is internally pulled to ground and therefore need not be connected if the function is not required. diagnostic the UZZ9000 provides powerful diagnostics features that allow the user to recognize certain failures of the device or system. a failure will occur when the output voltage v out either rises above or falls below the normal operation range. either one of the diagnostic areas is reached during any of the following conditions 1. short circuit between v out and gnd (r < 1 w ). 2. short circuit between v out and v dd (r<1 w ). 3. disconnection of v dd when the load is pulled down. 4. disconnection of gnd when the load is pulled up. 5. invalid input signal from the sensor, e.g. magnet lost. this failure is assumed when the offset corrected input signal of sensor 1 and sensor 2 is below 15 mv. the internal pull-up and pull-down resistors in the output buffer block ensure that v out will be pulled to one of the power supplies when the other supply is disconnected so v out reaches the diagnostic region even when there is no output load. if the external load is a pull-down resistor, then the device enters into the diagnostic area if v dd is disconnected, but not if v ss is disconnected. similarly, if the load is a pull-up resistor, then the device will enter the diagnostic area if v ss is disconnected, but not if v dd is disconnected. it is not necessary to connect an output load to the UZZ9000. after recovering from short circuit to ground or supply voltage, the chip returns undamaged to the normal operation mode. there is no time limitation regarding short circuit of v out . measurement dynamics the UZZ9000 includes an on-chip rc oscillator that generates the clock for the whole device. consequently, no external clock supply is required for the measurement system. the nominal clock frequency of the on-chip oscillator is 4 mhz at room temperature. it varies with temperature change. at - 40 c the clock frequency may decrease to 2.3 mhz. at higher temperatures however, a frequency up to 5.7 mhz may be reached. this influences the dynamics of measurements. from an application point of view, two different effects have to be distinguished: the system delay, which means how long it takes until a changed input signal is recognized at the output, and the measurement update rate. the system delay is mainly caused by the settling time of the low pass decimation filter, which depends on the maximum frequency content (shape) of the input signals and the clock frequency. the following maximum values can be expected for the entire system delay. the measurement update rate, however, is directly related to the oscillator frequency. at room temperature, a new value is available every 0.26 ms. when taking the entire temperature range into account, update rates between 0.45 and 0.18 ms are possible. (see table 5).
2000 may 19 10 philips semiconductors preliminary speci?cation sensor conditioning electronic UZZ9000 table 5 system delay and update rates of the UZZ9000 parameter min. typ. max. unit system delay (time elapsed until 95% of the ?nal value is reached) max. signal frequency < 200 mhz -- 0.6 ms transients (step response) -- 1.2 ms measurement update rate - 40 c 0.45 -- ms 25 c (room temperature) - 0.26 - ms 150 c -- 0.18 ms
2000 may 19 11 philips semiconductors preliminary speci?cation sensor conditioning electronic UZZ9000 package outline unit a max. a 1 a 2 a 3 b p cd (1) e (1) (1) eh e ll p q z y w v q references outline version european projection issue date iec jedec eiaj mm inches 2.65 0.30 0.10 2.45 2.25 0.49 0.36 0.32 0.23 15.6 15.2 7.6 7.4 1.27 10.65 10.00 1.1 1.0 0.9 0.4 8 0 o o 0.25 0.1 dimensions (inch dimensions are derived from the original mm dimensions) note 1. plastic or metal protrusions of 0.15 mm maximum per side are not included. 1.1 0.4 sot137-1 x 12 24 w m q a a 1 a 2 b p d h e l p q detail x e z c l v m a 13 (a ) 3 a y 0.25 075e05 ms-013 pin 1 index 0.10 0.012 0.004 0.096 0.089 0.019 0.014 0.013 0.009 0.61 0.60 0.30 0.29 0.050 1.4 0.055 0.419 0.394 0.043 0.039 0.035 0.016 0.01 0.25 0.01 0.004 0.043 0.016 0.01 e 1 0 5 10 mm scale so24: plastic small outline package; 24 leads; body width 7.5 mm sot137-1 97-05-22 99-12-27
2000 may 19 12 philips semiconductors preliminary speci?cation sensor conditioning electronic UZZ9000 data sheet status note 1. please consult the most recently issued data sheet before initiating or completing a design. data sheet status product status definitions (1) objective speci?cation development this data sheet contains the design target or goal speci?cations for product development. speci?cation may change in any manner without notice. preliminary speci?cation quali?cation this data sheet contains preliminary data, and supplementary data will be published at a later date. philips semiconductors reserves the right to make changes at any time without notice in order to improve design and supply the best possible product. product speci?cation production this data sheet contains ?nal speci?cations. philips semiconductors reserves the right to make changes at any time without notice in order to improve design and supply the best possible product. definitions short-form specification ? the data in a short-form specification is extracted from a full data sheet with the same type number and title. for detailed information see the relevant data sheet or data handbook. limiting values definition ? limiting values given are in accordance with the absolute maximum rating system (iec 60134). stress above one or more of the limiting values may cause permanent damage to the device. these are stress ratings only and operation of the device at these or at any other conditions above those given in the characteristics sections of the specification is not implied. exposure to limiting values for extended periods may affect device reliability. application information ? applications that are described herein for any of these products are for illustrative purposes only. philips semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or modification. disclaimers life support applications ? these products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. philips semiconductors customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify philips semiconductors for any damages resulting from such application. right to make changes ? philips semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. philips semiconductors assumes no responsibility or liability for the use of any of these products, conveys no licence or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified.
2000 may 19 13 philips semiconductors preliminary speci?cation sensor conditioning electronic UZZ9000 notes
2000 may 19 14 philips semiconductors preliminary speci?cation sensor conditioning electronic UZZ9000 notes
2000 may 19 15 philips semiconductors preliminary speci?cation sensor conditioning electronic UZZ9000 notes
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