LC7537N datasheet(2/11 Pages) SANYO

No de pièce	LC7537N

Description	Electronic Volume Control System for Audio Equipment

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Fabricant	SANYO [Sanyo Semicon Device]

Site Internet	https://www.sanyo-av.com/us/

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Absolute Maximum Ratings at Ta = 25°C, VSS = 0 V, VDD = ≥ VCC > VSS ≥ VEE

No. 2169-2/11

LC7537N, 7537AN, 7537NE

Pin Assignments

Equivalent Circuit Block Diagram

Specifications

Note: 1. A1000 pF or larger capacitor should be added on between each individual power supply terminal and VSS.

2. When the microcomputer side control signals rise faster than VDD for the LC7537, a 2 kΩ or higher resistor should be inserted midway on each of

the DI, CLK, and CE lines.

3. When mounting the QIP package on the board, do not dip the entire package in solder. Only the LC7537NE may be dipped directly in solder during

mounting.

Item

Symbol

Condition

Rating

Unit

Maximum supply voltage

VDD – VEE max

VDD, VEE : VEE ≥ –8 V

16

V

VCC max

VCC : VDD ≥ VCC

VSS – 0.3 to VSS + 7

V

Input supply voltage

VI1

DI, CLK, CE

VSS – 0.3 to VDD + 0.3

V

VI2

INIT

VSS – 0.3 to VDD + 0.3

V

Allowable power dissipation

Pd max

Ta

≤ 85˚C, (LC7537N, 7537AN)

200

mW

Ta

≤ 85˚C, (LC7537NE)

300

mW

Operating temperature

Topr

–40 to +85

˚C

Storage temperature

Tstg *3

–50 to +125

˚C

Allowable Operating Conditions at Ta = 25°C, VSS = 0 V, VDD = ≥ VCC > VSS ≥ VEE

Item

Symbol

Condition

Rating

Unit

Supply voltage *1

VDD – VEE

VEE ≥ –7.5 V

4.5 to 15

V

VCC

4.5 to 5.5

V

Input high–level voltage

VIH1 *2

DI, CLK, CE

0.8 VCC to VCC

V

VIH2

INIT

0.8 (VDD – VEE) + VEE to VDD

V

Input low–level voltage

VIL1 *2

DI, CLK, CE

VSS to 0.2 VCC

V

VIL2

INIT

VEE to 0.2 (VDD – VEE) + VEE

V

Input signal amplitude

VIN

VEE to VDD

VP-P

Input pulse width

tøW

1 min

µs

setup time

tset up

1 min

µs

Hold time

thold

1 min

µs

Operating frequency

fopg

up to 330

kHz

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