CS8190 Cherry Semiconductor Corporation, CS8190 Datasheet

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CS8190

Manufacturer Part Number
CS8190
Description
Manufacturer
Cherry Semiconductor Corporation
Datasheet

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Rev. 11/21/96
Supply Voltage (<100ms pulse transient) .........................................V
Operating Temperature .............................................................Ð40¡C to +105¡C
Storage Temperature..................................................................Ð40¡C to +165¡C
Junction Temperature .................................................................Ð40¡C to+150¡C
ESD (Human Body Model) .............................................................................4kV
Lead Temperature Soldering
The CS8190 is specifically designed
for use with air-core meter move-
ments. The IC provides all the func-
tions necessary for an analog
tachometer or speedometer. The
CS8190 takes a speed sensor input
and generates sine and cosine relat-
ed output signals to differentially
drive an air-core meter.
Many enhancements have been
added over industry standard
Wave Solder(through hole styles only).............10 sec. max, 260¡C peak
Reflow (SMD styles only).............60 sec. max above 183¡C, 230¡C peak
Precision Air-Core Tach/Speedo Driver
FREQ
SQ
COS +
COS -
BIAS
CP+
Gnd
Gnd
V
OUT
CC
IN
(continuous)..............................................................V
Output
COS
Absolute Maximum Ratings
Comp.
+
Ð
Input
Charge Pump
Ð
+
+
Ð
Description
Block Diagram
with Return to Zero
High Voltage
Protection
Func.
Gen.
tachometer drivers such as the
CS289 or LM1819. The output uti-
lizes differential drivers which elim-
inates the need for a zener reference
and offers more torque. The device
withstands 60V transients which
decreases the protection circuitry
required. The device is also more
precise than existing devices allow-
ing for fewer trims and for use in a
speedometer.
Regulator
Voltage
V
7.0V
REG
+
Ð
CS8190
Ð
+
+
Ð
Output
SINE
1
F/V
CP-
V
Gnd
Gnd
SINE+
SINE-
REG
OUT
CC
CC
= 60V
= 24V
2000 South County Trail, East Greenwich, RI 02818
Tel: (401)885-3600 Fax: (401)885-5786
FREQ
Cherry Semiconductor Corporation
SQ
FREQ
COS+
Web Site: www.cherry-semi.com
COS-
SQ
COS+
CP+
COS-
Gnd
Gnd
Direct Sensor Input
High Output Torque
Low Pointer Flutter
High Input Impedance
Overvoltage Protection
Return to Zero
V
Email: info@cherry-semi.com
OUT
CP+
Gnd
(internally fused leads)
Gnd
Gnd
Gnd
Package Options
V
OUT
CC
IN
(internally fused leads)
CC
IN
1
2
3
4
5
6
7
8
10
Features
1
2
3
4
5
6
7
8
9
16 Lead PDIP
20 Lead SOIC
A
15
10
16
14
13
12
11
9
20
19
18
17
16
15
14
13
12
11
¨
CP-
F/V
V
Gnd
Gnd
BIAS
SINE+
SINE-
CP-
F/V
V
Gnd
Gnd
Gnd
Gnd
Company
SIN+
SIN-
BIAS
REG
REG
OUT
OUT

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CS8190 Summary of contents

Page 1

... The CS8190 is specifically designed for use with air-core meter move- ments. The IC provides all the func- tions necessary for an analog tachometer or speedometer. The CS8190 takes a speed sensor input and generates sine and cosine relat- ed output signals to differentially drive an air-core meter. Many enhancements have been ...

Page 2

Electrical Characteristics: PARAMETER Supply Voltage Section I Supply Current Normal Operation Range CC Input Comparator Section Positive Input Threshold Input Hysteresis Input Bias Current * 0V ² V Input Frequency Range Input Voltage Range in series with ...

Page 3

PARAMETER Function Generator Section: continued Function Generator Error * 0¡ to 305¡ Reference Figures Function Generator Error Function Generator Error 13.1V ² V Function Generator Error 13.1V ² V Function Generator Error Function Generator ...

Page 4

Figure 3: Output Angle in Polar Form SINE+ SINE- Ð Ð SIN+ SIN ARCTAN V Ð V -7V COS+ COS- Nominal Angle vs. Ideal Angle (After calibrating at ...

Page 5

... Circuit Description and Application Notes The CS8190 has an undervoltage detect circuit that dis- ables the input comparator when V 8.0V(typical). With no input signal the F/V output volt- age decreases and the needle moves towards zero. A sec- ond undervoltage detect circuit at 6 ...

Page 6

... C2 should be large enough to ensure that the pointer always returns to the 0¡ position rather than 360¡ under all operating conditions. Figure 7 shows how the CS8190 and the CS8441 are used to produce a Speedometer and Odometer circuit. V REG R3 0 ...

Page 7

... Note 6: Additional filtering on the FREQ An alternative solution is to use the CS4101 which has a separate function generator input lead and can be driven directly from a DC source CS8190 - + BIAS Figure 9. Driving the CS8190 from an external DC voltage using an Op Amp Buffer CP+ CP+ CP ...

Page 8

... REF: JEDEC MS-001 REF: JEDEC MS-013 Ordering Information Part Number Description CS8190ENF16 16L PDIP (internally fused leads) CS8190EDWF20 20L SOIC (internally fused leads) CS8190EDWFR20 20L SOIC (internally fused leads) (tape & reel) Rev. 11/21/96 Package Specification D Thermal Data English R QJC Min ...

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