Ordering number : ENA2153
LC75106V
CMOS LSI
Digital Echo LSI with Built-in
Mic Amplifier
Overview
http://onsemi.com
The LC75106V is a digital echo LSI for karaoke. It has the microcomputer control mode (I
2
C BUS control) and non-
control mode. Therefore, various karaoke systems can be made.
This LSI has 2ch mic amplifier (with ALC), volume of 2ch mic, echo feed back volume and echo volume.
In addition, when the stereo signal internal connected mode has the function of the vocal cancellation etc.
The karaoke system can be constructed with this LSI.
Functions
•
2ch mic amplifier (with built-in Auto Level Control)
•
Volume of 2ch mic
•
With built-in for digital echo memory 32kbit
•
Feedback volume for digital echo
•
Digital echo volume
•
Mic mixing function
•
Vocal cancellation
•
With built-in oscillation circuit
•
I
2
C bus control
Application
•
Mini component audio and other
* I
2
C Bus is a trademark of Philips Corporation.
Semiconductor Components Industries, LLC, 2013
June, 2013
N1412HKPC 20121030-S00001 No. A2153-1/15
LC75106V
Specifications
Absolute Maximum Ratings
at Ta = 25°C, Analog GND = 0V
Parameter
Maximum power supply voltage
Allowable consumption power
Operating temperature range
Storage temperature range
Symbol
VDD max
Pd max
Ta
Tstg
VDD
Ta
≤
70°C *
Conditions
Ratings
+8.0 to +10.0
500
-20 to +70
-40 to +125
unit
V
mW
°C
°C
*
Mounted reference PCB (114.3mm
×
76.1mm
×
1.6mm, glass epoxy resin)
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating
Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
DC Electrical Characteristics Ratings
at Ta = 25°C, VSS = 0V
Operating Condition/Ta
= 25°C
Parameter
Recommended supply voltage
Range of operating supply voltage
Symbol
VDD
VDDopg
Pin name
VDD
VDD
VDD=9.0V
8.0
Conditions
min
typ
9.0
10.0
max
unit
V
V
Electric Characteristics/Ta
= 25°C, VDD = 9.0V, fin = 1kHz, VIN = 1mVrms = 0dB, RL = 10kΩ
Parameter
Current without signal
Clock frequency
Control data Hi Level voltage
Control data Low Level voltage
Control data Input pulse width
Control data Hold time
Control data Operation frequency
Symbol
IDDO
FCLK
VIH
VIL
tφW
thold
fopg
Pin name
VDD
OSC
SCL, SDA
SCL, SDA
SCL, SDA
SCL, SDA
SCL, SDA
OSC Ex.R=30kΩ
1.72
2.0
0.0
1.0
1.0
500
2.45
Conditions
min
typ
max
60
3.19
3.5
0.5
unit
mA
MHz
V
V
μs
μs
kHz
AC Electrical Characteristics
(Reference data: No measurement)
Parameter
Symbol
Pin name
Conditions
min
typ
max
unit
[Mic-AMP] Input=MICIN1/MICIN2, Output=MICOUT1/MICOUT2, VIN=-48dBV, VALC=VREF – 1.414V, Mic-AMP NF Ex.R=680Ω, ALC Ex.C=2.2μF
Mic Gain
Max output voltage
Total harmonic distortion rate1
Total harmonic distortion rate 2
Output noise voltage
ALC attack time
ALC release time
Input impedance
Output impedance
VGM2
VoTM
THDM1
THDM2
VNOM
TaA
TaR
ZiM
ZoM
MICOUT1/2
MICOUT1/2
MICOUT1/2
MICOUT1/2
MICOUT1/2
MICOUT1/2
MICOUT1/2
MICIN1/2
MICOUT1/2
Mic-AMP NF Ex.R=680Ω
Mic Gain=+38dB, THD=1%,
Filter=A-filter, ALC=OFF
Mic Gain=+38dB, ALC=OFF,
VO=-10dBV, Filter=A-filter
Mic Gain=+38dB, ALC=ON, VO=0dBV,
VIN=-32dBV, Filter=A-filter
Mic Gain=+38dB, Filter=A-filter
Mic Gain=+38dB, ALC=ON, VO=0dBV,
VIN=-32dBV
Mic Gain=+38dB, ALC=ON, VO=0dBV,
VIN=-32dBV
+34.0
1.75
+37.0
+42.0
dB
Vrms
0.07
0.1
-74.0
60
6.0
45
60
1.5
0.5
1.0
-65.0
%
%
dBV
ms
s
75
3.0
kΩ
kΩ
Mic-Gain=+38dB, ALC=OFF,
VO=0dBV
0.75
[Digital ECHO] Stereo signal outside connection modes, Input=SUMIN, Output=ECHOOUT, VIN=-10dBV, Delay Time=100ms, Mic Volume 1/2=0dB,
Feedback Volume=-∞
Delay time
Output Gain
Max output voltage
Total harmonic distortion rate
Output noise voltage
Input impedance
Output impedance
DT
VGE
VoE
THDE
VNOE
ZiE
ZoE
ECHOOUT
ECHOOUT
ECHOOUT
ECHOOUT
ECHOOUT
SUMIN
ECHOOUT
FCLK=2.45MHz
THD=10%, Filter=A-filter
Filter=A-filter
Filter=A-filter
75
-4.5
1.5
100
-2.0
125
+0.5
ms
dB
Vrms
0.7
-65
45
60
60
2.0
-55
75
75
%
dBV
kΩ
kΩ
Delay time=100ms, VO=0dBV
45
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No. A2153-2/15
LC75106V
Continued from the previous page.
Parameter
Symbol
Pin name
Conditions
min
typ
max
unit
[Stereo Line] Stereo signal internal connection modes, Input=LCHIN/RCHIN, Output=LCHOUT/RCHOUT, VIN=-10dBV, Line Select=Stereo,
Mic-Volume 1/2=ECHO Volume=-∞
Output Gain
Max output voltage
Total harmonic distortion rate
Output noise voltage
Vocal removal rate
Input impedance
Output impedance
VGS
VoS
THDS
VNOS
ZiS
ZoS
VGMS
VoMS
THDMS
VNOMS
ZiMS
ZoMS
VGES
VoES
THDES
VNOES
ZiES
ZoES
Lch/RchOUT
Lch/RchOUT
Lch/RchOUT
Lch/RchOUT
Lch/RchOUT
Lch/RchIN
Lch/RchOUT
VO=0dBV
THD=1%, Filter=A-filter
Filter=A-filter
Filter=A-filter
-3.5
1.75
-1.5
+0.5
dB
Vrms
0.03
-85.0
-21.5
75
0.75
-17.5
100
1.5
0.1
-75.0
-14.5
125
3.0
%
dBV
kΩ
kΩ
[Mic Sum-AMP] Stereo signal outside connection modes, Input=IN1/IN2, Output=SUMOUT, VIN=-10dBV
Output Gain
Max output voltage
Total harmonic distortion rate
Output noise voltage
Input impedance
Output impedance
SUMOUT
SUMOUT
SUMOUT
SUMOUT
IN1/IN2
SUMOUT
VO=0dBV
THD=1%, Filter=A-filter
Filter=A-filter
Filter=A-filter
+4.0
1.75
+5.5
+7.0
dB
Vrms
0.05
-77.0
45
1.0
60
2.0
0.5
-70.0
75
4.0
%
dBV
kΩ
kΩ
[ECHO Sum-AMP] Stereo signal outside connection modes, Input=SUMIN/ECHOIN, Output=OUT, VIN=-10dBV
Output Gain
Max output voltage
Total harmonic distortion rate
Output noise voltage
Input impedance
Output impedance
OUT
OUT
OUT
OUT
SUMIN/ECHOIN
OUT
VO=0dBV
THD=1%, Filter=A-filter
Filter=A-filter
Filter=A-filter
+4.0
1.75
+5.5
+7.0
dB
Vrms
0.05
-77.0
45
1.0
60
2.0
0.5
-70.0
75
4.0
%
dBV
kΩ
kΩ
Package Dimensions
unit:mm (typ)
3247A
36
19
5.6
1
0.3
18
0.2
15.0
SANYO : SSOP36(275mil)
0.1
(0.7)
0.8
1.7max
(1.5)
0.5
7.6
No. A2153-3/15
LC75106V
Pin Descriptions
Pin No.
1
36
Pin Name
MICIN1
MICIN2
Voltage
VDD/2
Description
Mic signal input 1
Mic signal input 2
Equivalent circuit
1
36
2
35
ALC1
ALC2
Auto level control terminal 1
Auto level control terminal 2
2
35
3
34
MICNF1
MICNF2
Mic feedback signal input terminal 1
Mic feedback signal input terminal 2
3
34
4
33
MICOUT1
MICOUT2
Mic signal output terminal 1
Mic signal output terminal 2
4
33
5
32
IN1
IN2
Mic volume input terminal 1
Mic volume input terminal 2
5
32
6
VREF
Internal standard voltage
6
Continued to the next page.
No. A2153-5/15
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