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 ²V
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 EQ,
Q
and Frequency
+
V COS
Q
P
F/V Output (V)
7.1
6
COSINE
OUTPUT
Q
V
P
SIN
Q
5
4
3
Ð
V
Z
+
SINE OUTPUT
2.1
F/V
OUT
= 2.0V + FREQ X C
T
X R
T
X V
REG
0
45û
90û
135û
180û
225û
270û
Ð
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
45û
90û 135û 180û 225û
Tachometer Angular Deflection (°)
270û
4.5V
4.5V
V
COS
3.8
5.45
7.1
3
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
