HIP9020 Datasheet, PDF (1/4 Pages) Intersil Corporation – Programmable Quad Buffer with Pre and Post Scaler Dividers

HIP9020
October 1993
Programmable Quad Buffer with
Pre and Post Scaler Dividers
Features
Description
• Sine Wave Speedometer Input
• Input Limiting . . . . . . . . . . . ±0.25V to ±100V (with 40kΩ)
• Over Voltage Protection
• Current Limiting
• Programmable Prescaler 1, 6 - 11
• Post Scaler Frequency Divide by 1 or 2
• Drivers with 15mA/24V Capability
• Outputs 4 Separate Square Waves
• Internal Regulator and Bias Source
• 0kHz to 6kHz Input Signal Range
• -40^oC to +125^oC Operating Temperature Range
Applications
• Prescaler
• Buffer/Limiter
• Signal Interface
• Automotive Speedometer
• Automotive Speed Control
• Automotive Tachometer
Ordering Information
The HIP9020 is a Vehicle Speed Sensor (V_SS) Buffer IC. It
receives sinusoidal vehicle speed information from a
speedometer signal source. The signal is amplified and
squared before frequency processing is done. The circuit
provides pin programmable integer prescaler and postscaler
dividers to scale the output frequencies. The prescaler
divider output of the frequency doubler is mode selected for
1 and 6 through 11. The postscaler mode is selected to the
Output 3 with a divide by 1 or 2. The four V_OX outputs are
open collector drivers.
Speed Sensor Input (SSI) - When current limited with a
40kΩ source impedance from the vehicle speed sensor, the
SSI input is capable of functioning over a wide range of input
signal. The limiter and squaring action is derived from the
zero crossing of the input signal. The signal is converted into
a square wave with a controlled hysteresis squaring
amplifier.
Power Supply - The power supply pin 2 input is intended to
operate from a 5.0V ± 0.3V source. The internal reference
sources are derived from a temperature stable bandgap;
including an optional 5.7V shunt regulator which may be
used as shown in Figure 2.
Output Drivers - Each output driver is an open NPN collector
with a zener clamp level of typically 35V and short circuit
current limiting. Each output is capable of sinking 15mA of
current.
PART
NUMBER
HIP9020AP
HIP9020AB
TEMPERATURE
RANGE
-40^oC to +125^oC
-40^oC to +125^oC
PACKAGE
14 Lead Plastic DIP
20 Lead Plastic SOIC (W)
Pinouts
HIP9020 (PDIP)
TOP VIEW
GND 1
V_CC 2
POSS 3
SSI 4
BUF 5
PRSO 6
POSI 7
14 VO1
13 VO2
12 VO3
11 VO4
10 PRSS–A
9 PRSS–B
8 PRSS–C
HIP9020 (SOIC)
TOP VIEW
GND 1
V_CC 2
NC 3
POSS 4
SSI 5
BUF 6
NC ₇
NC 8
PRSO 9
POSI 10
20 VO1
19 NC
18 NC
17 ^VO2
16 VO3
15 ^VO4
14 PRSS–A
13 NC
12 PRSS–B
11 PRSS–C
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
10-54
File Number 2790.2