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SINGLE CHIP PREAMPLIFIER FOR DOUBLE
DECK RADIO CASSETTE RECORDER
HIGHOPEN-LOOPGAIN(80dB)
VERYLOW INPUT NOISE
LOW TURNON/OFF POP
LOW SUPPLYCURRENT
PLAYBACK AMPLIFIER WITH HEAD INPUT
SWITCH
RECORDING AMPLIFIER WITH BUILT-IN
ALC
ALC TIME CONSTANT PIN CAN BE USED
AS ALCSWITCH
GOODSUPPLY RIPPLE REJECTION
TDA7286
DIP20 SO20
ORDERING NUMBERS:
DESCRIPTION
The TDA7286 is a monolithic integrated circuit in
DIP20 and SO20 packages designed for 6V, 9V
and 12V AC/DC double deck cassette applications.
BLOCK DIAGRAM
TDA7286 TDA7286D
May 1997
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TDA7286
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
S
V
IN
T
op
T
stg,Tj
PIN CONNECTION (Top view)
Supply Voltage 14 V
Input DC Voltage –0.4 to 0.5 V
Operating Temperature –20 to 70 °C
Storage & Junction Temperature –40 to 150 °C
THERMAL DATA
Symbol Parameter DIP20 SO20 Unit
Thermal Resistance Junction to Ambient Max. 100 200 °C/W
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R
th j-amb
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TDA7286
ELECTRICAL CHARACTERISTICS
(V
= 6V, T
S
=25°C;f = 1KHz; RL= 4.7kΩ;Rg= 2.2kΩ, unless
amb
otherwise specified.)
Symbol Parameter Test Condition Min. Typ. Max. Unit
V
S
I
d
PLAYBACK AMPLIFIER
G
VO
V
CD
V
O
SVR Supply Voltage Rejection f = 100Hz 35 45 dB
C
T
E
N
R
E
RECORDING AMPLIFIER
G
VO
R
V
DC
V
O
THD Total Harmonic Distortion V
CB Channel Balance ALC = ON 0 2 dB
SVR Supply Voltage Rejection f = 100Hz 28 32 dB
C
T
HEAD SELECT INPUT
Supply Voltage 4 12 V
Quiescent Current 7 15 mA
Open Loop Gain 80 dB
Output DC Voltage 1.2 1.5 1.7 V
Output AC Voltage THD = 1% 700 950 mVrms
Cross Talk 60 dB
Total Output Noise Rg= 0, BW = 22 to 22kHz 300 µV
Internal Feedback Res 180 kΩ
Open Loop Gain 80 dB
Input resistance 30 50 70 k
i
Output DC Voltage 2.0 2.4 2.8 V
Output AC Voltage THD = 1%
ALC = OFF
ALC = ON
ALC Range ∆V
= 0.5Vrms; ALC = OFF 0.2 0.5 %
O
= 3dB 48 dB
O
1
0.75
1.4
1 1.25
Cross Talk f = 1KHz 60 dB
Input LOW Level chB selected 0.6 V
Input HIGH level chA seleced 1.4 V
Ω
Vrms
Vrms
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TDA7286
SO20 PACKAGEMECHANICAL DATA
DIM.
A 2.65 0.104
a1 0.1 0.3 0.004 0.012
a2 2.45 0.096
b 0.35 0.49 0.014 0.019
b1 0.23 0.32 0.009 0.013
C 0.5 0.020
c1 45 (typ.)
D 12.6 13.0 0.496 0.512
E 10 10.65 0.394 0.419
e 1.27 0.050
e3 11.43 0.450
F 7.4 7.6 0.291 0.299
L 0.5 1.27 0.020 0.050
M 0.75 0.030
S 8 (max.)
MIN. TYP. MAX. MIN. TYP. MAX.
mm inch
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DIP20 PACKAGE MECHANICALDATA
TDA7286
DIM.
MIN. TYP. MAX. MIN. TYP. MAX.
a1 0.254 0.010
B 1.39 1.65 0.055 0.065
b 0.45 0.018
b1 0.25 0.010
D 25.4 1.000
E 8.5 0.335
e 2.54 0.100
e3 22.86 0.900
F 7.1 0.280
I 3.93 0.155
L 3.3 0.130
Z 1.34 0.053
mm inch
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TDA7286
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No
license is granted by implication or otherwise under any patent or patentrightsof SGS-THOMSON Microelectronics. Specification mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGSTHOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectronics.
1997SGS-THOMSON Microelectronics – Printed in Italy– All Rights Reserved
SGS-THOMSON MicroelectronicsGROUP OF COMPANIES
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Singapore - Spain - Sweden - Switzerland- Taiwan - Thailand - United Kingdom- U.S.A.
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