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HIP9010AB の電気的特性と機能

HIP9010ABのメーカーはIntersil Corporationです、この部品の機能は「Engine Knock Signal Processor」です。


製品の詳細 ( Datasheet PDF )

部品番号 HIP9010AB
部品説明 Engine Knock Signal Processor
メーカ Intersil Corporation
ロゴ Intersil Corporation ロゴ 




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HIP9010AB Datasheet, HIP9010AB PDF,ピン配置, 機能
Data Sheet
HIP9010
November 1998 File Number 3601.4
Engine Knock Signal Processor
The HIP9010 is used to provide a method of detecting
premature detonation or “Knock” in automotive engines.
A block diagram of this IC is shown in Figure 1. The chip
alternately selects one of the two sensors mounted on the
engine block. Two programmable bandpass filters process
the signal from both sensors, and divides the signal into two
channels. When the engine is not knocking, programmable
gain adjust stages are set to ensure that both the reference
channel and the knock channel contain similar energies.
This technique ensures that the detection system is
comparatively immune to changes in the engine background
noise level. When the engine is knocking, the energy in the
knock channel increases.
Ordering Information
TEMP.
PART NUMBER RANGE (oC)
PACKAGE
HIP9010AB
-40 to 125 20 Ld SOIC (W)
PKG.
NO.
M20.3
Features
• Two Sensor Inputs
• Microprocessor Programmable
• Accurate and Stable Filter Elements
• Digitally Programmable Gain
• Digitally Programmable Time Constants
• Digitally Programmable Filter Characteristics
• On-Chip Clock
• Operating Temperature Range -40oC to 125oC
Applications
• Engine Knock Detector Processor
• Analog Signal Processing where Controllable Filter
Characteristics are Required
Pinout
HIP9010
(SOIC)
TOP VIEW
VDD
GND
VMID
INOUT
1
2
3
4
NC 5
NC 6
INT/HOLD 7
CS 8
OSCIN 9
OSCOUT 10
20 S0IN
19 S0FB
18 S1FB
17 S1IN
16 NC
15 NC
14 TEST
13 SCK
12 MOSI
11 MISO
4-1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999

1 Page





HIP9010AB pdf, ピン配列
HIP9010
Absolute Maximum Ratings
DC Logic Supply, VDD . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to +7.0V
Output Voltage, VO . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to +7.0V
Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7V (Max)
Operating Conditions
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . -40oC to 125oC
Thermal Information
Thermal Resistance (Typical, Note 1)
θJA (oC/W)
SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
115
Maximum Storage Temperature Range, TSTG . . . . -65oC to 150oC
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . .150oC
Maximum Lead Temperature (Soldering) . . . . . . . . . . . . . . . 300oC
At distance 1/16in ± 1/32in (1.59mm ± 0.79mm) from case
for 10s (Max) (SOIC - Lead Tips Only)
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
1. θJA is measured with the component mounted on an evaluation PC board in free air.
Electrical Specifications VDD = 5V, ±5%, GND = 0V, Clock Frequency 4MHz, ±0.5%, TA = -40oC to 125oC,
Unless Otherwise Specified
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNITS
DC ELECTRICAL CHARACTERISTICS
Quiescent Supply Current
Midpoint Voltage, Pin 3
Midpoint Voltage, Pin 3
Input Leakage, Pin 14
Internal Pull-Up Resistance, Pin 14
Leakage of Pins 7, 8, 12 and 13
Low Input Voltage, Pins 7, 8, 12 and 13
High Input Voltage, Pins 7, 8, 12 and 13
Low Level Output, Pin 11
Leakage Pin 11
Low Level Output, Pin 10
High Level Output, Pin 10
INPUT AMPLIFIERS
IDD
VMID
VMID
ILTEST
RTEST
IL
VIL
VIH
VOL
IL
VOL
VOH
VDD = 5.25V, GND = 0V
VDD = 5.0V, IL = 2mA Source
VDD = 5.0V, IL = 0mA
Measured at VDD = 5.0V
VDD = 5.0V, I Measure = 15µA
Measured at GND and VDD = 5V
ISOURCE = 4mA
Measured at GND and VDD = 5V
ISOURCE = 500µA, VDD = 5V
ISINK = -500µA, VDD = 5V
3 7.5 12 mA
2.3 2.45 2.55
V
2.4 2.5 2.6
V
- - 3 µA
30 100 200 K
- - ±3 µA
- - 30 % of VDD
70 -
- % of VDD
0.01 - 0.30 V
- - ±10 µA
- - 1.5 V
4.4 -
-V
S0FB and S1FB High Output Voltage
S0FB and S1FB Low Output Voltage
S0FB and S1FB Closed Loop
VOUTHI
VOUTLO
ACL
100µA ISINK, VDD = 5V
100µA ISOURCE, VDD = 5V
Input Resistor = 1M,
Feedback Resistor = 49.9k
4.7 4.9
-
V
- 15 200 mV
-25 -26 -27 dB
S0FB and S1FB Closed Loop
ACL Input Resistor = 47.5k,
Feedback Resistor = 475k
18 20 21 dB
ANTIALIASING FILTER
Response 1kHz to 20kHz,
Referenced to 1kHz
BW Test Mode, 70mVRMS Input to S0FB or - -2 - dB
S1FB, Output Pin 4
Attenuation at 180kHz
Referenced to 1kHz
ATEN Test Mode, 70mVRMS Input to S0FB or -10
-15
-
dB
S1FB, Output Pin 4
PROGRAMMABLE FILTERS
Peak to Peak Voltage Output
Filters Q (Note 2)
VOUTP-P Run Mode
Q Run Mode
3.5 4.0
- 2.5
- VP-P
-Q
PROGRAMMABLE GAIN AMPLIFIERS
Percent Amplifier Gain Deviation
Per Table 2
%G Run Mode
- ±1 - %
4-3


3Pages


HIP9010AB 電子部品, 半導体
HIP9010
Description of the HIP9010 Operation
This IC is designed to be a universal digitally controlled,
analog interface between engine acoustical sensors or
accelerometers and internal combustion engine fuel
management systems. Two wideband input amplifiers are
provided that allow the use of two sensors that may be of the
piezoelectric type that can be mounted in optimum locations
on either in-line or V-type engine configurations.
Output from these amplifiers is directed from a channel
select switch into both digitally controlled filter and amplifier
channels. Both filter bandpass and gain settings are
programmable from a microprocessor. Output from the two
channels is combined in a digitally programmable integrator.
Integrator output is applied to a line driver for further
processing by the engine fuel management system.
Broadband piezoelectric ceramic transducers used for the
engine signal pickup have device capacitances in the order
of 1100pF and output voltages that range from 5mV to
8VRMS. During normal engine operation a single input
channel is selected and applied to the filters. One filter
channel processes a signal that is used to establish the
background reference level. The second channel is used to
observe the engine during the time interval that preignition
may be expected. This information is compared with the
“background” signal via the IC’s integrator and will tend to
cancel the background noise and accentuate noise due to
engine pre-detonation. Moreover, the bandpass of filter
channels can be optimized to further discriminate between
engine background and combustion noise and
pre-detonation noise.
A basic approach to engine pre-detonation systems is to only
observe engine background during the time interval that noise
is expected and if detected, retard timing. This approach does
not require the sensitivity and selectivity that is needed for a
continuously adjustable solution. Enhanced fuel economy and
performance is obtainable when this IC is coupled with a
microprocessor controlled fuel management system.
Circuit Block Description
Input Amplifiers
Two amplifiers are used to interface to the two engine
sensors. These amplifiers have a typical open loop gain of
100dB, with a typical bandwidth of 2.6MHz. The common
mode input voltage range extends to within 0.5V of either
supply rail. The amplifier output has a similar output range.
Sufficient gain, bandwidth and output swing capability was
provided to ensure that the amplifiers can handle attenuation
gain settings of 20 to 1 or -26dB. This would be needed
when high peak output signals, in the range of 8VRMS, are
obtained from the transducer. Gain settings of 10 times can
also be needed when the transducers have output levels of
5mVRMS.
In a typical application the input signal frequency may vary
from DC to 20kHz. External capacitors are used to decouple
the IC from the sensor (C1 and C2). A typical value of the
capacitors is 3.3nF. Series input resistors, R1 and R2, are
used to connect the inverting inputs of the amplifiers, (pins
20 and 17). Feedback resistors, R3 and R4, in conjunction
with R1 and R2 are used to set the gain of the amplifiers.
SENSOR
0
R3
C1 R1
PIN 20 -
VMID
+
PIN 3
PIN 19
SENSOR
1
R4
C2 R2
PIN 17 -
VMID
+
PIN 3
PIN 18
FIGURE 3. INPUT AMPLIFIER CONNECTIONS
A mid-voltage level is generated by the IC. This level is set to
be half way between VDD and ground. Throughout the IC
this level is used as a quiet, DC reference for the circuits
within the IC. This point is brought out for several reasons: it
can be used as a reference voltage, and it must be bypassed
to ensure that it is a quiet reference for the internal circuitry.
The input amplifiers are designed with power down capability,
which, when activated disables their bias circuit and their
output goes into a three-state condition. This is very important
during the test mode, in which the output terminals of the
amplifiers are driven by the outside world with test signals.
Antialiasing Filter
The IC has a 3rd order Butterworth filter with a -3dB point at
70kHz. Double poly-silicon capacitors and implanted
resistors are used to set poles in the filter. This filter is
required to have no more than 1dB attenuation at 20kHz
(highest frequency off interest) and a minimum attenuation
of 10dB at 180kHz. This filter precedes the switch capacitor
filters which run at 200kHz.
Programmable Band Pass Switched Capacitor Filters
Two identical programmable filters are used to detect the two
frequencies of interest. The Knock Frequency Filter is
programmed to pass the frequency component of the engine
knock. The Reference Frequency Filter is used to detect
background noise at a second programmed frequency. The filter
frequency is established by the characteristics of the particular
engine and transducer. By subtracting the energy component of
these two filters, we can detect if a knock has occurred.
The filters have a nominal differential gain of 4. Their
frequency is set by program words (discussed in the
Communications Protocol section). Center frequencies can
be programmed from 1.22kHz to 19.98kHz, in 64 steps. The
filter Qs are typically 2.4.
4-6

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部品番号部品説明メーカ
HIP9010AB

Engine Knock Signal Processor

Intersil Corporation
Intersil Corporation


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