SGS Thomson Microelectronics TDA2320A Datasheet
.WIDESUPPLYVOLTAGERANGE (3 to 36V)
.SINGLEOR SPLITSUPPLYOPERATION
.VERYLOW CURRENT CONSUMPTION
(0.8mA)
.VERYLOW DISTORTION
.NOPOP-NOISE
DESC RIP TI ON
The TDA2320Ais a stereoclass A preamplifierintended for application in portablecassette players
and high qualityaudio systems.
The TDA2320Ais a monolithicintegratedcircuit in
a 8leadplastic dip.
STEREOAMPLIFIER
(Plastic Package)
ORDER CODES
Part Number
TDA2320A -40
TDA2320A
N
DIP8
Temperature
Range
o
C, +105oC •
Package
N
PI N CO NNECT IONS (top view)
Output 1
Inverting Input 1
Non-inve rting Input 1
GND
October 1997
1
2
-
+
3
45
-
+
8
V
CC
7
Output 2
6
Inverting Input 2
Non-inverting Input 2
1/12
TDA2320A
SCHE MATIC DIAGRAM (1/2 TDA2320A)
D1
D2
Inverting
Input
R1 R3
Q3
D3
Q4
Q5
Q2
Q1
D4
C1
Q6
Non-inverting
Input
Q7
C2
Q17
R4R2
Q8
Q9
Q10
R5
D5
Q11
Q12
R6
Q14
Q13
Q15
R8
R7
Q16
V
CC
Output
GND
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
P
T
stg,Tj
Supply Voltage 36 V
CC
Total Power Dissipation at T
tot
Storage and Junction Temperature –40 to 150
=70oC 400 mW
amb
o
C
2/12
TDA2320A
ELECTRICAL CHARACTERISTICS
= 15V, T
V
CC
Symbol Parameter Min. Typ. Max. Unit
V
CC
I
CC
I
ib
V
io
I
io
A
vd
V
OPP
GBP Gain-bandwidth Product
FBP Power Bandwidth (*)
SR Slew Rate (*) 1 1.6 V/µs
THD Distortion (V
e
n
V
O1/V02
SVR Supply Voltage Rejection Ratio(**)
(*) Test circuit of figure 1
(**) Test circuit of figure 2
=25oC (unless otherwise specified) (refer to the test circuits)
amb
Supply Voltage (*) 3 36 V
Supply Current (*) 0.8 2 mA
Input Bias Current 150 500 nA
Input Offset Voltage
≤ 10kΩ 15
R
s
Input Offset Current 10 50 nA
Open Loop Voltage Gain
= 15V f = 333Hz
V
CC
= 4.5V f = 1kHz
V
CC
f = 1kHz
f = 10kHz
80
70
50
70
Output Voltage Swing (f = 1kHz, RL= 600Ω) (*)
V
V
CC
CC
= 15V
= 4.5V
13
2.5
f = 20kHz 1.5 2.5
=5VPP, THD = 1% 40 70
V
o
= 2V, AV= 20dB) (*)
o
f = 1kHz
f = 10kHz
0.03
0.08
Equivalent Input Noise Voltage (**)
Curve A R
B = 22Hz to 22kHz R
f = 1kHz R
R
R
R
R
s
s
s
s
s
s
s
=50Ω
= 600Ω
=5kΩ
=50Ω
= 600Ω
=5kΩ
= 600Ω
1
1.1
1.5
1.3
1.5
2
9
1.4
Channel Separation (**)
f = 1kHz 100
f = 100Hz 80
mV
dB
V
MHz
kHz
%
µV
nV√Hz
dB
dB
3/12
TDA2320A
TYP ICAL APPLI C ATION
STEREO PR EAMPLIFIER FOR CASSETTE PLAYERS
TAPE
HEAD
TAPE
HEAD
0.3mV
0.3mV
22µF
22µF
4.7µF
100k
4.7µF
100kΩ
18kΩ
0.1µF
82kΩ
5
8
1/2
220pF
150Ω
Ω
150Ω
220pF
TDA2320A
6
22µF
3
TDA2320A
2
1/2
4
15kΩ
15k
180kΩ
18kΩ
180kΩ
Ω
Ω
82k
7
1
1µF
20kΩ
10nF
1µF
20kΩ
10nF
V
CC
TES T CIRCUITS
Figure 1
22µF
82k
0.22µF
IN
100kΩ
4/12
22µF
Figure 2
V
18kΩ
Ω
220pF
CC
1/2
TDA2320A
150Ω
47µF
0.1µF
R
1µF
OUT
Ω
22k
Rx
s
220pF
+7.5V
1/2
TDA2320A
-7.5V
33Ω
0.1µF
OUT
0.1µF
3.3kΩ
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