LA72680M
No.7955-2/21
Operating Conditions
at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended operating
voltage 1
VCCH
9V
Recommended operating
voltage 2
VCCL
5V
Recommended always voltage
VCCA
5V
Allowable operating voltage 1
VCCH op1
8.5 to 9.5
V
Allowable operating voltage 2
VCCL op2
4.8 to 5.3
V
Allowable operating always
voltage
VCCA op3
4.5 to 5.5
V
Electrical Characteristics
at Ta
= 25°C, VCCH=9V, VCCL=5V, VCCA=5V
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
Current dissipation
REC&EE 9V
ICCR1
No signal, Inflow current at Pin 3/54
G1D8D7:00
42
50
58
mA
Current dissipation EE 5V
ICCE1
No signal, Inflow current at Pin 15/32/36/46
G1D8D7:00
63
75
87
mA
Current dissipation REC
5V
ICCR2
No signal, Inflow current at Pin 15/32/36/46
G1D8D7:00, G1D4:1
89
105
121
mA
Current dissipation PB 9V
ICCP1
No signal, Inflow current at Pin 3/54
G1D8D7:01
9
11
13
mA
Current dissipation PB 5V
ICCP2
No signal, Inflow current at Pin 15/32/36/46
G1D8D7:01
76
90
104
mA
Current dissipation
always power supply
ICCAL
No signal, Inflow current at Pin 5,
Mute H at Pin 49
0.8
1.0
1.2
mA
EE through
(LINE IN to LINE OUT), EE mode, f=1kHz, L/R-ch
Output level 1
VO1
VIN=-28.2dBV, Gain=1 (G3 D4:0)
-10.5
-9
-7.5
dBV
Output level 2
VO2
VIN=-28.2dBV, Gain=2 (G3 D4:1)
-9.5
-8
-6.5
dBV
Output distortion
THD
VIN=-28.2dBV, Gain1, 2
0.05
0.15
%
Channel gain difference
VO
VIN=-28.2dBV, Gain1, 2
-1
0
1
dB
Maximum output level
VOM
THD=1%, Gain1, 2
7
8.5
dBV
Output noise level
VNO
Rg=1k
, JIS-A filter, Gain1
-89
-85
dBV
Mute attenuation value
MU
VIN=-18.2dBV
-91
-80
dB
Input switch cross-talk
CT
VIN=-18.2dBV
-75
-68
dB
Normal output
(LINE IN to NORMAL OUT), EE mode, f=1kHz
Output level for Normal
VONOR
VIN=-28.2dBV
-22.5
-21.5
-20.5
dBV
RFC output
(NORMAL IN to RFC OUT), f=1kHz
Output level
VOR
VIN=-21.2dBV, G2D4D3:10
-11.0
-9.5
-8.0
dBV
Output distortion
THDR
VIN=-21.2dBV, G2D4D3:10
0.05
0.2
%
ALC level (1)
VOAR1
VIN=-11.2dBV, G2D4D3:10
-7.0
-5.5
-4.0
dBv
ALC distortion (1)
THDAR1
VIN=-11.2dBV, G2D4D3:10
0.3
0.5
%
ALC level (2)
VOAR2
VIN= -11.2dBV, G2D4D3:10, G4D2:1
-3.0
-1.5
0
dBv
ALC distortion (2)
THDAR2
VIN= -11.2dBV, G2D4D3:10, G4D2:1
0.1
0.3
%
LINE AMP
(NORMAL IN to LINE OUT), EE mode, f=1kHz, Left channel and Right channel
Line amp gain
GVL
VIN=-21dBV, Gain=1 mode (G2D4:0)
11
12
13
dB
REC system
(LINE IN to VCO OUT), f=1kHz
Free-running frequency L
fOL
Input no signal
1.294
1.300
1.306
MHz
Free-running frequency R
fOR
Input no signal
1.694
1.700
1.706
MHz
Standard frequency deviation
L&R
DEV
VIN=-28.2dBV
±46
±50
±54
kHz
Carrier output level Lch
VfoL
Non modulation
380
440
500
mVp-p
FM R/Lch MIX ratio 1
MIX1
Non modulation, VfoR/VfoL, G3D7D6;01
7.1
7.6
8.1
dB
FM R/Lch MIX ratio 2
MIX2
Non modulation, VfoR/VfoL, G3D7D6;00
8.1
8.6
9.1
dB
FM R/Lch MIX ratio 3
MIX3
Non modulation, VfoR/VfoL, G3D7D6;10
9.1
9.6
10.1
dB
FM R/Lch MIX ratio 4
MIX4
Non modulation, VfoR/VfoL, G3D7D6;11
10.1
10.6
11.1
dB
Continued on next page.