TDA2320 PREAMPLIFIER FOR INFRARED REMOTE CONTROL SYSTEMS
DESCRIPTION The TDA2320 is a monolithicintegrated circuit in Dip package specially designed to amplify the IR signal in remote controlled TV or radio sets. It directly interfaces with the digital control circuitry. The TDA2320 incorporates a two-stage amplkifier with excellent sensitivity and high noise immunity. It can work with a single 5V supply voltage and flash or carrier transmission modes as providedfor 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.
Total Power Dissipation at Tamb = 70 C Storage and Junction Temperature
Value
Unit
20
V
400
mW
–40 to 150
o
C
2320-01.TBL
ABSOLUTE MAXIMUM RATINGS
TDA2320 ELECTRICAL CHARACTERISTICS VCC = 5V, Tamb = 25oC) (unless otherwise specified) (refer to the test circuits)
Iib Vio Iio Avd VOPP GBP SR en SVR
Parameter Supply Voltage Supply Current VCC = 20V Input Bias Current Input Offset Voltage R s < 10kΩ Input Offset Current Large Signal Voltage Gain f = 1kHz f = 100kHz DC Output Voltage Swing Gain-bandwidth Product f = 100kHz Slew Rate R L = 2kΩ Equivalent Input Noise Voltage f = 40kHz R s = 10kΩ Supply Voltage Rejection Ratio f = 100Hz
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
Figure 2 : IR Transmitter Using M709 or M710
2320-04.EPS
22nF
22nF
Figure 3 : MMC II - PLL TV Frequency Synthetizer
TDA2320 33Ω +9V 445 to 510kHz
220µF 16V
2xLD271
DIGITAL FILTER
4MHz DATA BUS
BD237 M3870 2x1N4148
4MHz cK
68Ω
KEYBOARD
3
MODE
6
L201 TELETEXT
2320-05.EPS
ADDRESS
4/5
ANALOGUE OUTPUTS BAND
ON/OFF
2320-06.EPS
M709 or M710
INT
LOCAL KEYBOARD
BC377 1.5kΩ
TDA2320 PACKAGE MECHANICAL DATA 8 PINS -PLASTIC DIP
B
I L
a1
A
e4
b1
B1
b
E
e e3
Z
Z D
5
1
4
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
PM-DIP8.EPS
F
8
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 licence is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this pub lication are subject to change without notice. This publication 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 :
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