CS289
Package Pin Description: continued
PACKAGE PIN #
PIN SYMBOL
FUNCTION
20L SO
12
13
18
19
20
14L PDIP
9
10
11
12
13
14
S
Q
OUT
S
Q
IN
V
REG
V
COS
V
CC
Pwr Gnd
Buffered square wave output signal.
Speed or RPM input signal.
Voltage regulator output.
Cosine output signal.
Supply voltage.
Power Ground connection.
Note 1: V
sine
measured V
sine
to V
Z
. V
COS
measured V
COS
to V
Z
. All other voltages specified are measured to ground.
Note 2: Max PWR dissipation
≤V
CC
X I
CC
- (V
2
I
sine
+ V12 I
COS
).
Typical Performance Characteristics
Output Angle in Polar Form
Charge Pump Output Voltage
Relationship of EΘ,
Θ
and Frequency
+
COSINE
OUTPUT
7.1
V
P
COS
Θ
6
F/V Output (V)
5
4
3
Θ
V
P
SIN
Θ
–
V
Z
+
SINE OUTPUT
2.1
F/V
OUT
= 2.0V + FREQ X C
T
X R
T
X V
REG
0
45˚
90˚
135˚
180˚
225˚ 270˚
–
Frequency/Output Angle (°)
Function Generator Output Voltage
2.1
4.5
3.5
V
SINE
V
SINE
, V
COS
(V)
2.5
1.5
V
Z
-1.5
-2.5
-3.5
-4.5
0
45˚
90˚ 135˚ 180˚ 225˚
Tachometer Angular Deflection (°)
270˚
4.5V
4.5V
V
COS
3.8
5.45
7.1
3
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
