SANYO LC75392, LC75392M Datasheet
Overview
The LC75392 (DIP-30SD) and the LC75392M (MFP30S) are electronic volume control ICs that provide input
and output switching, volume, and tone control functions
controlled by data transferred over a serial interface.
Functions
• Input and output switching: Four inputs and outputs can
be switched independently.
• Volume control: A balance function can be implemented
by controlling the left and right levels independently.
Each channel can be set to 0 to –20 dB in 2 dB steps,
–20 to –32 dB in 3 dB steps, –32 to –52 dB in 4 dB
steps, –52 dB to –70 dB in 4.5 dB steps, and –∞.
•Tone controls: Internal switches are provided to select
between four sets of frequency characteristics. A buffer
function can be implemented using external
components.
Features
Serial data interface: Support for control and
communication in the CCB format.
Package Dimensions
unit: mm
3196-DIP30SD
unit: mm
3216-MFP30S
CMOS LSI
Ordering number : EN5681
73097HA(OT) No. 5681-1/12
SANYO: DIP30SD
[LC75392]
SANYO: MFP30S
[LC75392M]
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
Single-Chip Electronic Volume Control System
LC75392, 75392M
• 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
Maximum supply voltage V
DD
max V
DD
12 V
Maximum input voltage V
IN
max CL, DI, CE, L1, L2, L3, L4, R1, R2, R3, R4 V
SS
– 0.3 to V
DD
+ 0.3 V
Allowable power dissipation Pd max Ta ≤ 85°C 160 mW
Operating temperature Topr –40 to +85 °C
Storage temperature Tstg –50 to +125 °C
Specifications
Absolute Maximum Ratings at Ta = 25°C, VSS= 0 V
No. 5681-2/12
LC75392, 75392M
Parameter Symbol Conditions
Ratings
Unit
min typ max
Supply voltage V
DDVDD
5.5 11.0 V
Input high-level voltage V
IH
CL, DI, CE 4.0 V
DD
V
Input low-level voltage V
IL
CL, DI, CE V
SS
1.0 V
Input voltage amplitude V
IN
L1, L2, L3, L4, R1, R2, R3, R4 V
SS
V
DD
Vp-p
Input pulse width t
øW
CL 1.0 µs
Setup time t
setup
CL, DI, CE 1.0 µs
Hold time t
hold
CL, DI, CE 1.0 µs
Operating frequency fopg CL 500 kHz
Allowable Operating Ranges at Ta = 25°C, VSS= 0 V
Parameter Symbol Conditions
Ratings
Unit
min typ max
[Input Block]
Input resistance Rin L1, L2, L3, L4, R1, R2, R3, R4 500 kΩ
[Overall]
THD1
V
IN
= 100 mV rms, f = 1 kHz,
0.013 %
Total harmonic distortion
overall, buffer mode off, flat state
THD2
VIN= 100 mV rms, f = 20 kHz,
0.013 %
overall, buffer mode off, flat state
Crosstalk CT
VIN= 1 V rms, f = 1 kHz, overall, Rg = 1 kΩ,
81 dB
buffer mode off, flat state
Output at maximum attenuation V
O
min
V
IN
= 1 V rms, f = 1 kHz, main volume set to
–80 dB
–∞, buffer mode on
V
N
1
Flat overall (IHF-A), Rg = 1 kΩ,
15 µV
Output noise voltage
buffer mode off, flat state
VN2
Flat overall (DIN-AUDIO), Rg = 1 kΩ,
22 µV
buffer mode off, flat state
Current drain I
DD
V
DD
– VSS= 11 V 7 10 mA
Input high-level current I
IH
CL, DI, CE, VIN= 10 V 10 µA
Input low-level current I
IL
CL, DI, CE, VIN= 0 V –10 µA
Electrical Characteristics at Ta = 25°C, VDD= 10 V, VSS= 0 V
Equivalent Circuit Block Diagram
Latch
Decoder
Shift register
Control
Test Circuit
Total Harmonic Distortion
No. 5681-3/12
LC75392, 75392M
Use circuit
constants identical
to those of the right
channel.
THD in
SG out
Distortion analyzer
Output Noise Voltage
No. 5681-4/12
LC75392, 75392M
Use circuit
constants identical
to those of the right
channel.
Noise meter
Loading...