SANYO LC75396NE Datasheet
Overview
The LC75396NE is an electronic volume control system
providing control over volume, balance, 5-band equalizer,
and input switching based on serial inputs.
Functions
• Volume control:
The chip provides 81 levels of volume attenuation: in 1dB step between 0 dB and –79 dB and –∞.
Independent control over left front/rear and right
front/rear channels provides balance control.
• Equalizer:
The chip provides control in 2-dB steps over the range
between +10 dB and –10 dB. Four of the five bands
have peaking equalization; the remaining one, shelving
equalization.
• Selector:
The left and right channels each offer a choice of five
inputs. The L5 and R5 inputs can be turned on and off
independently. An external constant determines the
amplification for the input signal.
• Serial data input
— Supports CCB* format communication with the
system controller.
Features
• Built-in buffer amplifiers reduce the number of external
parts required.
• Silicon gate CMOS process reduces the noise of built-in
switch.
•V
DD
/2 reference voltage generation circuit built in.
Package Dimensions
unit: mm
3159-QFP64E
CMOS IC
50698RM (OT) No. 5914-1/19
SANYO: QFP64E
[LC75396NE]
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Single-Chip Electronic Volume Control System
LC75396NE
Ordering number : EN5914
• 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
11 V
Maximum input voltage V
IN
max
CL, DI, CE, L1 to L5, R1 to R5, LTIN, RTIN, LFIN, RFIN, V
SS
– 0.3 to
V
LRIN, RRIN V
DD
+ 0.3
Allowable power dissipation Pd max Ta ≤ 75°C, with PC board 550 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
No. 5914-2/19
LC75396NE
Parameter Symbol Conditions
Ratings
Unit
min typ max
Supply voltage V
DD
V
DD
6.0 10.5 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
CL, DI, CE, L1 to L5, R1 to R5, LTIN, RTIN,
V
SS
V
DD
Vp-p
LFIN, RFIN, LRIN, RRIN
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 = – 30 to + 75°C, VSS= 0 V
Parameter Symbol Conditions
Ratings
Unit
min typ max
[Input block]
Input resistance Rin L1 to L5, R1 to R5 50 kΩ
Clipping level Vcl LSELO, RSELO: THD = 1.0% 3.00 Vrms
Output load resistance R
L
LSELO, RSELO 10 kΩ
[Volume control block]
Input resistance Rin LFIN, LRIN, RFIN, RRIN 100 kΩ
[Equalizer control block]
Control range Geq Max, boost/cut ±8 ±10 ±12 dB
Step resolution Estep 1 2 3 dB
Internal feedback resistance Rfeed 17 28 39 kΩ
[Overall characteristics]
Total harmonic distortion THD V
IN
= 1 Vrms, f = 1 kHz, with all controls flat overall 0.01 %
Crosstalk CT
V
IN
= 1 Vrms, f = 1 kHz, with all controls flat overall,
80 dB
Rg = 1 kΩ
Output noise voltage
VN1 With all controls flat overall, BW = 20 to 20kHz 2.9 µV
V
N
2
GEQ F1 Band = +10dB, With all controls overall, BW = 20 to 20kHz
17 µV
Output at maximum attenuation V
O
min VIN= 1 Vrms, f = 1 kHz, main volume –∞ –90 dB
Current drain I
DD
VDD– VSS= 10.5 V 46.5 55.8 mA
Input high level current I
IH
CL, DI, CE, VIN= 10.5 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
Sample Application Circuit
No. 5914-3/19
LC75396NE
Test Circuits
Total Harmonic Distortion
No. 5914-4/19
LC75396NE
Output Noise Voltage
No. 5914-5/19
LC75396NE
Crosstalk
No. 5914-6/19
LC75396NE
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