
No. 5642-2/11
LA7289
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
Current drain (EE)
ICCE
No signal
10.0
12.5
15.0
mA
Current drain (playback)
ICCP
No signal
11.2
14.0
16.8
mA
Current drain (record)
ICCR
No signal
9.6
12.0
14.4
mA
[Equalizer amplifier]
Open-circuit voltage gain
VGOE
VO = –6dBV
58.4
64.4
–
dB
Input noise voltage
VNIE
Rg = 620
, DIN audio filter
–
1.0
1.8
Vrms
[Line Amplifier]
Voltage gain (PB input)
VGLP
VO = –6dBV
20.1
20.6
21.1
dB
Voltage gain (LINE input)
VGLL
VO = –6dBV
20.1
20.6
21.1
dB
Voltage gain (TUNER input)
VGLT
VO = –6dBV
20.1
20.6
21.1
dB
Harmonic distortion
THDL
VO = –6dBV
–
0.05
0.3
%
Output noise voltage
VNOL
Rg = 620
, DIN audio filter
––75
–69
dBV
Maximum output voltage
VOML
THD = 1%
1.7
2.5
–
Vrms
Output voltage when ALC operating
VOA
VIN = –25dBV
–7
–6
–5
dBV
ALC effect
ALC
VIN = –25dBV to –5dBV
–
13
dB
Total harmonic distortion when ALC operating
THDA
VIN = –25dBV
–
0.05
0.6
%
[Record Amplifier]
Voltage gain
VGCR
VO = –6dBV
13.5
14.0
14.5
dB
Harmonic distortion
THDR
VO = –6dBV
–
0.05
0.3
%
Maximum output voltage
VOMR
THD = 1%
1.7
2.5
–
Vrms
[REC/EE Switching Circuit]
Record mode hold voltage
VRR
The pin 19 DC voltage
3.6
–
6.0
V
EE mode hold voltage
VRE
The pin 19 DC voltage
0
–
1V
[Muting Circuit]
On state hold voltage
VMON
The pin 18 DC voltage
3.6
–
6.0
V
Off state hold voltage
VMOFF
The pin 18 DC voltage
0
–
1V
Muting attenuation
MP, ML, MT
80
90
–
dB
(PB, LINE. TUNER)
[PB, LINE. TUNER Switching Circuit]
PB mode hold voltage
VLP
The pin 17 DC voltage
3.6
–
6.0
V
LINE mode hold voltage
VLL
The pin 17 DC voltage
1.8
–
2.6
V
TUNER mode hold voltage
VLT
The pin 17 DC voltage
0
–
1.0
V
[EP. LP. SP Switching Circuit]
EP mode hold voltage
VEE
The pin 16 DC voltage
3.6
–
6.0
V
LP mode hold voltage
VEL
The pin 16 DC voltage
1.8
–
2.6
V
SP mode hold voltage
VEE
The pin 16 DC voltage
0
–
0.8
V
[Switching Circuit]
Pin 2 on resistance
RON2
I1 = ±1 mA
–
10
30
Pin 2 input voltage
VIN2
Ta = 65°C, f = 70 kHz (sin), ILK = 10 A
––
±45
V
[Record Bias Automatic Adjustment Circuit]
Record bias current
IB
220
245
270
A
Pin 1 output control range
V1
2.0
4.0
6.0
V
Electrical Characteristics at Ta = 25°C, VCC = 12 V, f = 1 kHz, 0 dBV = 1.0 Vrms