STMICROELECTRONICS TDA2320

TDA2320
PREAMPLIFIER FOR INFRARED
REMOTE CONTROL SYSTEMS
DESCRIPTION
The TDA2320is a monolithic integratedcircuit in Dip
package especially designedto amplify the IR signal
in remote controlled TV or radio sets. It directly interfaces the digital control circuitry.
The TDA2320 incorporates a two-stage amplifier
with excellent sensitivity and high noise immunity. It
can work with a single 5V supply voltage and flash
or carrier transmission modes as provided for example by the M709A/M710A/MOS transmitters.
The TDA2320 is particularly intended to be used in
conjunction with the M104 and M206 + M3870 remote control receivers.
N
DIP8
(Plastic Package)
ORDER CODES
Temperature
Range
Part Number
o
o
-40 C, +105 C
TDA2320
Package
N
•
PIN CONNECTIONS (top view)
Output 1 1
Inverting Input 1 2
-
Non-inve rting Input 1 3
+
GND
October 1997
4
8
VCC
7
Output 2
-
6
Inve rting Input 2
+
5
Non-inverting Input 2
1/5
TDA2320
SCHEMATIC DIAGRAM (1/2 TDA2320)
Inverting
Input
Non-inverting
Input
VCC
R1
R5
R3
Q13
Q8
Q6
Q3
R6
Q11
R7
D3
Q14
Q9 D5
Output
Q4
R8
Q5
Q2
Q7
C2
Q12
D1
Q16
Q15
Q17
Q1
D4
Q10
D2
C1
R2
R4
GND
ABSOLUTE MAXIMUM RATINGS
Symbol
VCC
Supply Voltage
Ptot
Total Power Dissipation at Tamb = 70 C
Tstg, Tj
2/5
Parameter
o
Storage and Junction Temperature
Value
Unit
20
V
400
mW
–40 to 150
o
C
TDA2320
ELECTRICAL CHARACTERISTICS
VCC = 5V, Tamb = 25oC (unless otherwise specified) (refer to the test circuits)
Symbol
VCC
ICC
Iib
Vio
Iio
Avd
VOPP
GBP
SR
en
SVR
Parameter
Supply Voltage
Supply Current
VCC = 20V
Input Bias Current
Input Offset Voltage
Rs < 10kΩ
Input Offset Current
Large Signal Voltage Gain
f = 1kHz
f = 100kHz
DC Output Voltage Swing
Gain-bandwidth Product
f = 100kHz
Slew Rate
RL = 2kΩ
Equivalent Input Noise Voltage
f = 40kHz
Rs = 10kΩ
Supply Voltage Rejection Ratio
f = 100Hz
Min.
4
Typ.
Max.
20
0.8
100
2
500
0.5
15
64
nA
mV
nA
dB
70
30
2.5
1.5
Unit
V
mA
V
MHz
3
V/µs
1.5
nV
√
Hz
20
dB
80
APPLICATION CIRCUIT
FLASH MODE PREAMPLIFIER
R5
1kΩ
C1
10µF
R1
1MΩ
R2
39kΩ
C5
0.1µF
1N4148
Q1
BC109 C3
22nF
D2
6
R6
47kΩ
1/2
TDA2320
R3
100kΩ
R10
100kΩ
C4
R8
47nF 3.3kΩ
7
2
BPW41
D1
R4
3.3kΩ
8
1/2
TDA2320
5
C2
22nF
+5V
R7
12kΩ
3
1
4
+5V
R9
2.7kΩ
3/5
TDA2320
APPLICATION INFORMATION
Figure 1 : Application Circuit for Carrier Transmission Mode
1kΩ
+5V
10µF
2.2kΩ
BPW41
1N4148
5
100kΩ
1N4148
100nF
1/2
TDA2320
6
1N4148
8
7
3
1/2
TDA2320
4
1
10kΩ
M206
2
15kΩ
15kΩ
220Ω
220Ω
2x1N4148
22nF
22nF
Figure 2 : IR Transmitter Using M709 or
M710
Figure 3 : MMC II - PLL TV Frequency
Synthetizer
TDA2320
33Ω
+9V
445 to
510kHz
220µF
16V
2xLD271
BC377
1.5kΩ
M709
or
M710
INT
LOCAL
KEYBOARD
DIGITAL
FILTER
4MHz
DATA
BUS
BD237
M3870
2x1N4148
4MHz cK
68Ω
KEYBOARD
3
MODE
6
L201
TELETEXT
ADDRESS
ON/OFF
4/5
ANALOGUE
OUTPUTS
BAND
TDA2320
PM-DIP8.EPS
PACKAGE MECHANICAL DATA
8 PINS -PLASTIC DIP
A
a1
B
b
b1
D
E
e
e3
e4
F
i
L
Z
Min.
Millimeters
Typ.
3.32
0.51
1.15
0.356
0.204
Max.
1.65
0.55
0.304
10.92
9.75
7.95
Min.
0.020
0.045
0.014
0.008
Max.
0.065
0.022
0.012
0.430
0.384
0.313
2.54
7.62
7.62
3.18
Inches
Typ.
0.131
0.100
0.300
0.300
6.6
5.08
3.81
1.52
0.125
0260
0.200
0.150
0.060
DIP8.TBL
Dimensions
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 patent rights of SGS-THOMSON
Microelectronics. Specifications mentioned in this publ ication are subject to change without notice. This pub lication supersedes
and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical
components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics.
ORDER CODE :
 1997 SGS-THOMSON Microelectronics – Printed in Italy – All Rights Reserved
SGS-THOMSON Microelectronics GROUP OF COMPANIES
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