Sanyo LA4160 Specifications
Ordering number:ENN870D
Monolithic Linear IC
LA4160
Single-Chip Tape Recorder Audio System
Features
•A single package contaning preamplifier, ALC circuit, power amplifier.
•Preamplifier with high gain, and power amplifier with high gain and output.
1W typ. (VCC=6V, RL=4Ω) 2.2W typ. (VCC=9V, RL=4Ω)
•Minimum number of external parts required.
•Soft tone quality at the time of output saturation.
•Wide range of ALC and small variation in output voltage.
•Wide range of operating supply voltage.
•Small shock noise at the time of supply voltage ON/OFF (With built-in prevention circuit).
•Variable monitor capability due to recording amplifier consisting of preamplifier alone.
Specifications
Package Dimensions
unit:mm |
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3005A-DIP14T |
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[LA4160] |
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2.5 |
2.1 |
14 |
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8 |
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7.62 |
6.45 |
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0.4 |
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1 |
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7 |
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1.53 |
6.5 |
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19.0 |
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6.0 |
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3.46 |
4.26max |
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0.51min |
3.5 |
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1.88 |
2.54 |
0.5 |
1.3 |
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SANYO : DIP14T |
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Absolute Maximum Ratings at Ta = 25˚C
Parameter |
Symbol |
Conditions |
Ratings |
Unit |
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Maximum Supply Voltage |
VCC max |
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13 |
V |
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Allowable Power Dissipation |
Pd max |
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1.2 |
W |
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50× 50× 1.5mm3 Cu-coated |
2.25 |
W |
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Operating Temperature |
Topr |
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–20 to +75 |
˚C |
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Storage Temperature |
Tstg |
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–40 to +150 |
˚C |
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Recommended Operating Conditions at Ta = 25˚C
Parameter |
Symbol |
Conditions |
Ratings |
Unit |
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Supply Voltage |
VCC |
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6 to 9 |
V |
Load Resistance |
RL |
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3.2 to 8 |
Ω |
Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft’s control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or other parameters) listed in products specifications of any and all SANYO products described or contained herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
12800TH (KT)/41594HK/O207TA/4015KI/8171KI, TS No.870–1/11
LA4160
Operating Characteristics at Ta = 25˚C, VCC=6V, f=1kHz, See specified Test Circuit
Parameter |
Symbol |
Conditions |
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Ratings |
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Unit |
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min |
typ |
max |
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Quiescent Current |
ICCO |
VCC=6V |
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18 |
30 |
mA |
VCC=9V |
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23 |
40 |
mA |
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[Preamplifier] |
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Voltage Gain |
VG |
Open loop |
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85 |
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dB |
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Closed loop, Playback |
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40 |
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dB |
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Maximum Output Voltage |
VO |
THD=1%, Playback |
0.9 |
1.2 |
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V |
Input Resistance |
ri |
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21 |
30 |
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kΩ |
Equivalent Input Noise Voltage |
VNI |
Playback |
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1.0 |
2.0 |
µV |
ALC Input Level |
ALC |
THD=1%, Playback |
–20 |
–12 |
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dBm |
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[Power amplifier] |
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Voltage Gain |
VG |
Closed Loop, Rf=51Ω |
43 |
45 |
47 |
dB |
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VCC=6V, THD=10% |
0.7 |
1.0 |
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W |
Output Power |
PO |
VCC=7.5V, THD=10% |
1.0 |
1.5 |
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W |
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VCC=9V, THD=10% |
1.7 |
2.2 |
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W |
Total Harmonic Distortion |
THD |
Po=250mW |
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0.3 |
1.5 |
% |
Input Resistnace |
ri |
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30 |
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kΩ |
Output Noise Voltage |
VNO |
Rg=10kΩ |
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0.6 |
1.8 |
mV |
Ripple Rejection |
Rr |
Rg=0, VR=150mV, f=100Hz |
40 |
45 |
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dB |
Test Circuit Diagram
Test Method
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Switch |
SW1 |
SW2 |
SW3 |
SW4 |
SW5 |
SW6 |
SW7 |
SW8 |
Test |
Test method |
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Item |
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area |
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ICCO |
– |
on |
on |
off |
on |
on |
off |
off |
– |
Test circuit current. |
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amplifier |
VG |
2 |
off |
off |
off |
on |
on |
off |
off |
A, D |
20log Vo/Vi (dB), where input voltage is Vi, |
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Po |
2 |
off |
off |
off |
on |
on |
off |
off |
D |
convet it into output. |
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output voltage Vo. |
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Test output voltage at THD=10% and |
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Power |
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VNO |
– |
on |
off |
off |
on |
on |
off |
off |
D |
Test output noise voltage. |
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THD |
2 |
off |
off |
off |
on |
on |
off |
off |
D |
Test THD at output voltage Vo=1V. |
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VNR |
– |
on |
off |
off |
on |
on |
off |
off |
D |
Superpose ripple (100Hz) 150mV on |
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supply vottage and test output ripple. |
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preamplifier |
VGO |
1 |
off |
off |
on |
off |
on |
off |
off |
A, B |
20log Vo/Vi (dB). |
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Vo max |
1 |
off |
off |
off |
on |
on |
off |
off |
B |
Test output voltage at THD=1%. |
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VNI |
– |
off |
on |
off |
on |
on |
on |
off |
C |
Convert output noise voltage at Rg=2.2k by |
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using gain at 1kHz. |
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ALC Input |
1 |
off |
off |
off |
off |
off |
off |
on |
A, B |
Test input voltage at THD=1%. |
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level |
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No.870–2/11
LA4160
Equivalent Circuit Block Diagram
Sample Application Circuit 1 : Cassette Recorder
No.870–3/11
LA4160
Sample Application Circuit 2 : Radio-Cassette Recorder
Description of Application Circuit
1.Preamplifier
The preamplifier circuit consists of the input differential stage (TR9, 10), level shift stage (TR13), and output stage (TR17, 18, 19). Since the output stage is of push-pull type, no remarkable drop in the output voltage occurs even at low load impedances and the output can be connected direct to the ALC circuit and meter circuit. The external DC/AC feedback resistor (Z2) can be set arbitrarily and the closed loop gain is obtained by the following equation.
VG (pre) 20 log ( Z2 ) (dB)
Z1
The input impedance depends on internal resistance R2 which is 30kΩ.
No.870–4/11
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