CS4121EDWFR20G Datasheet, PDF (4/12 Pages) ON Semiconductor – Low Voltage Precision Air-Core Tach/Speedo Driver

PIN FUNCTION DESCRIPTION
PACKAGE PIN #
DIP−16
SO−20L
1
1
2
2
3
3
4, 5, 12, 13 4−7, 14−17
6
8
7
9
8
10
9
11
10
12
11
13
14
18
15
19
16
20
CS4121
PIN SYMBOL
CP+
SQ_OUT
FREQ_IN
GND
COS+
COS−
V_CC
BIAS
SIN−
SIN+
V_REG
F/V_OUT
CP−
FUNCTION
Positive input to charge pump.
Buffered square wave output signal.
Speed or RPM input signal.
Ground Connections.
Positive cosine output signal.
Negative cosine output signal.
Ignition or battery supply voltage.
Test point or zero adjustment.
Negative sine output signal.
Positive sine output signal.
Voltage regulator output.
Output voltage proportional to input signal frequency.
Negative input to charge pump.
MARKING DIAGRAM AND PIN CONNECTIONS
1
CP+
SQ_OUT
FREQ_IN
GND
GND
COS+
COS−
V_CC
DIP−16
16
CP−
F/V_OUT
V_REG
GND
GND
SIN+
SIN−
BIAS
SO−20L
1
20
CP+
CP−
SQ_OUT
FREQ_IN
GND
F/V_OUT
V_REG
GND
GND
GND
GND
GND
GND
GND
COS+
SIN+
COS−
SIN−
V_CC
BIAS
A
= Assembly Location
WL
= Wafer Lot
YY
= Year
WW
= Work Week
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