CS4101 Datasheet, PDF (3/8 Pages) Cherry Semiconductor Corporation – Precision Air-Core Tach/Speedo Driver with Separate Function Generator Input

Electrical Characteristics: continued
PARAMETER
TEST CONDITIONS
s Function Generator Section: continued
Function Generator Error
Function Generator Error
Function Generator Error
Function Generator Error
Function Generator Error
Function Generator Error
Function Generator Gain
13.1V ² V_CC ² 16V
13.1V ² V_CC ² 11V
13.1V ² V_CC ² 9V
25¡C ² T_A ² 80¡C
25¡C ² T_A ² 105¡C
Ð40¡C ² T_A ² 25¡C
T_A = 25¡C Q vs F/V_OUT
MIN
TYP
-2.5
0
-1
0
-3
0
-3
0
-5.5
0
-3
0
60
77
MAX
+2.5
+1
+3
+3
+5.5
+3
95
PACKAGE LEAD #
20L
1
2
3
4
5, 6, 15, 16
7, 14, 17
8
9
10
11
12
13
18
19
20
Package Lead Description
LEAD SYMBOL
FUNCTION
CP+
SQ_OUT
FREQ_IN
BIAS
Gnd
NC
COS+
COS-
V_CC
F_GEN
SIN-
SIN+
V_REG
F/V_OUT
CP-
Positive input to charge pump.
Buffered square wave output signal.
Speed or rpm input signal.
Test point or Zero adjustment.
Ground Connections.
No Connection.
Positive cosine output signal.
Negative cosine output signal.
Ignition or battery supply voltage.
Function generator input signal.
Negative sine output signal.
Positive sine output signal.
Voltage regulator output.
Output voltage proportional to input signal frequency.
Negative input to charge pump.
UNIT
deg
deg
deg
deg
deg
deg
¡/V
Typical Performance Characteristics
Figure 1: Function Generator Output Voltage
vs Degrees of Deflection
7
6
5
4
COS
3
2
1
0
-1
-2
-3
-4
-5
-6
SIN
-7
0
45
90
135
180
225
270
315
Degrees of Deflection (°)
Figure 2: Charge Pump Output Voltage vs Output Angle
F/V_OUT = 2.0V + 2 FREQ ´ C_T ´ R_T ´ (V_REG - 0.7)
7
6
5
4
3
2
1
0
0
45
90
135
180
225
270
315
Frequency/Output Angle (°)
3