SANYO LC7535M Datasheet

Overview

The LC7535M is an electronic volume and loudness
control IC that provides volume, balance, and loudness
functions with a minimal number of external components
and that can be controlled electronically.

Functions

• Volume: Provides 81 positions from 0 dB to –79 dB in

1-dB steps and –∞. A balance function can be
implemented by controlling the left and right volume
levels independently.

• Loudness: A loudness function can be implemented by
attaching external capacitors at the output tap provided
at the –20-dB position in the 5-dB step volume control.

• S (select) pin: Up to two LC7535M chips can be used on
the same bus.

• Serial data input: The LC7535M supports
communication with the controller in the CCB format.

Feature

• High voltage-handling capacity: ±16 V.

Package Dimensions

unit: mm

3216A-MFP30S

CMOS IC

53098RM (OT) No. 5760-1/9

SANYO: MFP30S

[LC7535M]

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

Electronic Volume/Loudness Control with Serial Data

Control and High Voltage-Handling Capacity

LC7535M

Ordering number : EN5760

• CCB is a trademark of SANYO ELECTRIC CO., LTD.

• CCB is SANYO’s original bus format and all the bus
addresses are controlled by SANYO.

Parameter Symbol Conditions Ratings Unit

V

DD

max VEE≤ VSS< VCC< V

DD

VSSto VSS+ 18 V

Maximum supply voltage V

EE

max VEE≤ VSS< VCC< V

DD

VSS– 18 to V

SS

V

V

CC

max VEE≤ VSS< VCC< V

DD

VSSto VSS+ 7 V

V

IN

max1 CL, DI, CE 0 to VCC+ 0.3 V

Maximum input voltage V

IN

max2 L5dBIN, R5dBIN, L1dBIN, R1dBIN VEE– 0.3 to VDD+ 0.3 V

V

IN

max3 S VCC– 0.3 to VDD+ 0.3 V
Allowable power dissipation Pd max Ta ≤ 75°C 250 mW
Operating temperature Topr –30 to +75 °C
Storage temperature Tstg –40 to +125 °C

Specifications

Absolute Maximum Ratings at Ta = 25°C, VSS= 0 V

Parameter Symbol Conditions

Ratings

Unit

min typ max

V

DDVDD

VCC+ 4.5 16 V

Supply voltage V

EE

V

EE

–16 0 V

V

CCVCC

4.5 5 5.5 V

Input high-level voltage

V

IH

1 CL, DI, CE 0.8 V

CC

V

CC

V

V

IH

2 S 0.8 × (VDD– VCC) + V

CC

V

DD

V

Input low-level voltage

V

IL

1 CL, DI, CE V

SS

0.2 V

CC

V

V

IL

2S V

CC

0.2 × (VDD– VCC) + V

CC

V

Allowable Operating Ranges at Ta = 25°C, VSS= 0 V

Continued on next page.

No. 5760-2/9

LC7535M

Continued from preceding page.

Parameter Symbol Conditions

Ratings

Unit

min typ max

Input voltage amplitude V

IN

L5dBIN, R5dBIN, L1dBIN, R1dBIN V

EE

V

DD

Vp-p

Input pulse width t

øw

CL 1 µs

Setup time t

set up

CL, DI, CE 1 µs

Hold time t

hold

CL, DI, CE 1 µs

Operating frequency t

opg

CL 500 kHz

Parameter Symbol Conditions

Ratings

Unit

min typ max

Total harmonic distortion THD

V

IN

= 1 Vrms, f = 1 kHz,

0.002 %

With all tone control settings flat, V

DD

– VEE= 30 V

V

IN

= 1 Vrms, f = 1 kHz,

Crosstalk C

T

With all tone control settings flat, RG = 1 kΩ, 70 dB
V

DD

– VEE= 30 V

Output at maximum attenuation V

Omin

VIN= 1 V rms, f = 1 kHz, with the volume set at –∞,

–95 dB

V

DD

– VEE= 30 V

Output noise voltage V

N

With all tone control settings flat, Rg = 1 kΩ

2 10 µV

IHF-A, V

DD

– VEE= 30 V

Total resistance

Rvol1 5-dB volume control block 75 kΩ
Rvol2 1-dB volume control block 20 kΩ

L5dBIN, R5dBIN, LCT1, RCT1, LCT2, RCT2, L5dBOUT,

Output off leakage current I

OFF

R5dBOUT, L1dBIN, R1dBIN, L1dBOUT, R1dBOUT, LVM, –10 +10 µA
RVM

Input high-level current I

IH

CL, DI, CE : VIN= V

CC

10 µA

Input low-level current I

IL

CL, DI, CE : VIN= V

SS

–10 µA

Current drain

I

DD

VDD= 16 V 1 mA

I

CC

VCC= 5.5 V 1 mA

Electrical Characteristics at Ta = 25°C, VSS= 0 V

Equivalent Circuit

Sample Application Circuit

No. 5760-3/9

LC7535M

Test Circuit
Total Harmonic Distortion

With an identical circuit for the right channel