CMOS LSI
Ordering number : EN4929A
63096HA (OT)/62095HA (OT) No. 4929-1/11
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
Two-Channel Electronic Volume Control
LC75366, 75366M
Overview
The LC75366 (DIP20) and the LC75366M (MFP20) are
electronic volume controls that can be controlled by serial
input data and provide volume, balance and loudness
functions.
Features
Silicon gate CMOS process for low switching noise
Functions
Volume: 0 dB to 68 dB (in 2 dB steps) and
;
36 positions.
A balance function can be implemented by controlling
the left and right channel volume settings independently.
Loudness: Taps are provided at the 20 dB positions in
the 10 dB step resistor ladder used by the volume
control function. A loudness function can be
implemented by attaching external RC circuits at these
tap points.
An address selection pin (the S pin) allows two
LC75366 chips to be used on the same bus.
Serial data input: Supports CCB* format communication
with the system controller.
Package Dimensions
unit: mm
3021B-DIP20
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.
unit: mm
3036B-MFP20
Specifications
Absolute Maximum Ratings
at Ta = 25C, V
SS
= 0 V
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
V
DD
max
V
DD
12
V
Maximum input voltage
V
IN
max1
CL, DI, CE, S
V
SS
0.3 to V
DD
+ 0.3
V
V
IN
max2
L10dBIN, L2dBIN, R10dBIN, R2dBIN
V
SS
0.3 to V
DD
+ 0.3
V
Allowable power dissipation
Pd max
Ta
85C
140
mW
Operating temperature
Topr
40 to +85
C
Storage temperature
Tstg
50 to +125
C
[LC75366]
SANYO: DIP20
SANYO: MFP20
[LC75366M]
Allowable Operating Ranges
at Ta = 25C, V
SS
= 0 V
Electrical Characteristics
at Ta = 25C, V
SS
= 0 V
Pin Assignment
No. 4929-2/11
LC75366, 75366M
Parameter
Symbol
Conditions
min
typ
max
Unit
THD (1)
V
IN
= 1 Vrms, f = 1 kHz, all settings flat overall,
0.006
%
Total harmonic distortion
V
DD
= 9 V
THD (2)
V
IN
= 1 Vrms, f = 20 kHz, all settings flat overall,
0.015
%
V
DD
= 9 V
Crosstalk
CT
V
IN
= 1 Vrms, f = 20 kHz, all settings flat overall,
85
dB
Rg = 1 k
Output at maximum attenuation
V
O
min
V
IN
= 1 Vrms, f = 20 kHz, volume setting:
,
80
dB
with a 470 F capacitor between L/R Vref and V
SS
Total resistance
R
VOL
(1)
10 dB steps
28.2
47
65.8
k
R
VOL
(2)
2 dB steps
12
20
28
k
L10dBIN, R10dBIN, LCT1, L2dBIN, R2dBIN, RCT1,
Output off leakage current
Ioff
L10dBOUT, R10dBOUT, LCT2, L2dBOUT, R2dBOUT,
10
+10
A
RCT2, LVref, RVref
Input high level current
I
IH
VI = V
DD
(CL, CE and DI pins)
10
A
Input low level current
I
IL
VI = V
SS
(CL, CE and DI pins)
10
A
Output noise voltage
V
N
All settings flat overall (IHF-A), V
DD
= 9 V, Rg = 1 k
2
10
V
Current drain
I
DD
V
DD
V
SS
= 11 V
1
mA
CT1
180
300
420
Analog switch on resistance
R
ON
For use between CT2 and Vref
90
150
210
(Design target value)
0 dB,
0.6
1.0
1.4
k
Other than the above
6.0
10.0
14.0
k
Parameter
Symbol
Conditions
Ratings
Unit
Supply voltage
V
DD
V
DD
4.0 to 11.0
V
Input high level voltage
V
IH
(1)
CL, DI, CE
0.3 V
DD
+ 1 to V
DD
V
V
IH
(2)
S
0.8 V
DD
to V
DD
V
Input low level voltage
V
IL
(1)
CL, DI, CE
V
SS
to 0.2 V
DD
V
V
IL
(2)
S
V
SS
to 0.2 V
DD
V
Input voltage amplitude
V
IN
L10dBIN, L2dBIN, R10dBIN, R2dBIN
V
SS
to V
DD
Vp-p
Input pulse width
t
W
CL
1 or longer
s
Setup time
t
set up
CL, DI, CE
1 or longer
s
Hold time
t
hold
CL, DI, CE
1 or longer
s
Operating frequency
fop
CL
Up to 500
kHz
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