CS4101EN20 View Datasheet(PDF) - Cherry semiconductor

Part Name

Description

View to exact match

CS4101EN20

Precision Air-Core Tach/Speedo Driver with Separate Function Generator Input

Cherry semiconductor 

Circuit Description and Application Notes: continued

FREQIN

VREG

R3

SQOUT

VC(t)

+Ð

CT R4

+

Ð

QSQUARE

3.4V

0.25V

CP+

Q1

2.0V

Q3 CPÐ

Q2

+

Ð

RT

F/VOUT

F to V

C4

Figure 5A: Partial Schematic of Input and Charge Pump

PW

VCC

FREQIN 0

SQOUT

0

VREG

ICP+

VCP+

0

T

T-PW

Figure 5B: Timing Diagram of FREQIN and ICP

6

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