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TDA2320A
STEREO AMPLIFIER
.WI .SI .VERYLOWCURRENTCONSUMPTI .VERYLOWDI .NOPOP-
DE SUPPLY VOLTAGE RANGE (3 to 36V) NGLE OR SPLIT SUPPLY OPERATION ON (0.8mA) STORTION NOISE
N DIP8 (Plastic Package)
DESCRIPTION The TDA2320A is a stereo class A preamplifier intended for application in portable cassette players and high quality audio systems. The TDA2320A is a monolithic integrated circuit in a 8 lead plastic dip. PIN CONNECTIONS (top view)
ORDER CODES
Part Number TDA2320A Temperature Range -40 C, +105 C
o o
Package N *
Output 1 1 Inverting Input 1 2 Non-inve rting Input 1 3 GND 4 + +
8 7 6 5
VCC Output 2 Inve rting Input 2 Non-inverting Input 2
October 1997
1/12
TDA2320A
SCHEMATIC DIAGRAM (1/2 TDA2320A)
Inverting Input Non-inverting Input VCC R1 R3 R5 R6
Q3 D3
Q6
Q8 Q11
Q13 R7 Q14
Q9 D5 Output Q4 R8 Q2 D1 Q17 Q1 D2 C1 R2 R4 GND D4 Q10 Q5 Q7 C2 Q16 Q15
Q12
ABSOLUTE MAXIMUM RATINGS
Symbol VCC Ptot Tstg, Tj Supply Voltage Total Power Dissipation at Tamb = 70 C Storage and Junction Temperature
o
Parameter
Value 36 400 -40 to 150
Unit V mW
o
C
2/12
TDA2320A
ELECTRICAL CHARACTERISTICS VCC = 15V, T amb = 25oC (unless otherwise specified) (refer to the test circuits)
Symbol VCC ICC Iib Vio Iio Avd Parameter Supply Voltage (*) Supply Current (*) Input Bias Current Input Offset Voltage Rs 10k Input Offset Current Open Loop Voltage Gain VCC = 15V VCC = 4.5V Output Voltage Swing (f = 1kHz, RL = 600) (*) Gain-bandwidth Product f = 20kHz Power Bandwidth (*) Vo = 5VPP, THD = 1% Slew Rate (*) Distortion (Vo = 2V, AV = 20dB) (*) f = 1kHz f = 10kHz en Equivalent Input Noise Voltage (**) Curve A B = 22Hz to 22kHz f = 1kHz Channel Separation (**) f = 1kHz Supply Voltage Rejection Ratio(**) f = 100Hz Rs Rs Rs Rs Rs Rs Rs = = = = = = = 50 600 5k 50 600 5k 600 Min. 3 Typ. 0.8 150 1 10 f f f f = = = = 333Hz 1kHz 10kHz 1kHz 80 70 50 70 V VCC = 15V VCC = 4.5V GBP FBP SR THD 1.5 40 1 13 2.5 MHz 2.5 kHz 70 1.6 0.03 0.08 1 1.1 1.5 1.3 1.5 2 9 100 dB 80 V 1.4 V/s % Max. 36 2 500 5 50 Unit V mA nA mV nA dB
VOPP
VO1/V02 SVR
nV Hz dB
(*) Test circuit of figure 1 (**) Test circuit of figure 2
3/12
TDA2320A
TYPICAL APPLICATION STEREO PREAMPLIFIER FOR CASSETTE PLAYERS
18k VCC 22F 0.1F
82k 4.7F 0.3mV TAPE HEAD 100k 6 5 220pF 8 1/2 TDA2320 A 4 180k 15k 10nF 7 1F
20k
150
22F 18k 22F
82k 4.7F 0.3mV TAPE HEAD 100k 2 180k 15k 150 22F 10nF 3 220pF 1/2 TDA2320A 1 1F
20k
TEST CIRCUITS Figure 1
VCC 22F 18k 0.1F
Figure 2
+7.5V
0.1F
82k 0.22F IN 220pF 100k 1/2 TDA2320A 1F OUT 22k Rx
220pF Rs
1/2 TDA2320A
OUT
0.1F -7.5V 3.3k 33
150 47F
4/12
TDA2320A
Figure 3 : Supply Current versus Supply Voltage Figure 4 : Supply Current versus Ambient Temperature
Figure 5 : Output Voltage Swing versus Load Resistance
Figure 6 : Power Bandwidth
Figure 7 : Total Harmonic Distortion versusOutput Voltage
Figure 8 : Total Input Noise versus Source Resistance
5/12
TDA2320A
Figure 9 : Noise Density versus Frequency Figure 10 :RIAA Preamplifier Response
Figure 11 :Tape Preamplifier Frequency
6/12
TDA2320A
APPLICATION INFORMATION Figure 12 : Stereo RIAA Preamplifier
R5 18k +15V 22F C3 R1 100k 4.7F IN (L) 5 C1 C5 100pF 8 1/2 TDA2320A 4 R9 220k C10 7 C14 1F C13 0.1F
R2 120k
OUT (L)
6 C9 R7 820 10F C7
R13 1k
3.3nF
R10 22k
R6 18k
15nF
22F
C4 R3 100k
4.7F IN (R) C2 R4 120k C6
3 100pF 1/2 TDA2320A 1 C15 1F OUT (R)
2 C11 R8 820 10F C8 3.3nF R11 220k C12
R14 1k
R12 22k
15nF
Figure 13 : P.C. Board and Components layout of the Circuit of figure 12
7/12
TDA2320A
Figure 14 : Second Order 2kHz Butterworth Crossover Filter for Hi-Fi Active Boxes Figure 15 :Third Order 2.8kHz Bessel Crossover Filter for Hi-Fi Actives Boxes
+15V 100nF
+15V 100nF
12nF
6
0.22F 10k
8 1/2 TDA2320A 4
7
0.47F
C1 R1 0. 22F 12k
C2 4.7nF R2 12k
C3 6.8nF
6
10k 5.6nF
5
5k 100nF
TO WOOFER AMPLIFIER
R3 12k C4 1.2nF
8 1/2 TDA2320A 4
7
C5 0.47F P1 WOOFER AMPLIFIER
5
5k 100nF
f c = 2kHz
-15V
5.6k
INPUT f c = 2.8kHz
-15V
R4 5.6k
10k
R6 8.2k
2 1/2 TDA2320A 3 1 0.1F
C6 4.7nF C7 4.7nF C8 4.7nF
2 1/2 TDA2320A 3
C9 1 0.1F 5k P2 TWEETER AMPLIFIER
5.6nF IN
5.6nF
5k
22k 5.6k
TO TWEETER AMPLIFIER
R5 12k
R7 47k
R8 5.6k
Figure 16 : Frequency Response (circuit of figure 14)
Figure 17 : Frequency Response (circuit of figure 15)
8/12
TDA2320A
Figure 18 : 200Hz to 2kHz Active Bandpass Filter for Midrange Speakers
V CC 0.3F 10nF 6 1/2 TDA2320A 1/2 TDA2320A 3 0.1F 1 12k 12k 6.8nF 12k 5 5k 1.8nF 5.6k 7 0.47F
10k
2
56nF IN
56nF
22k
V CC
Figure 19 : Subsonic Filter
10k
C
C
fc (Hz)
C (F) 0.68 0.47 0.33 0.22 0.1
Vin 22k
3 1/2 TDA2320A 21 Vout
15 22 30 55 100
Figure 20 :High-cut Filter
C2
Vin
10k
10k
fc (kHz)
3 C1 2 1/2 TDA2320A 1 Vout
C1 (nF) 3.9 2.2 1.2 0.68
C2 (nF) 6.8 4.7 2.2 1.5
3 5 10 15
-
9/12
TDA2320A
Figure 21 : Fifth Order 3.4kHz Low-pass Butterworth Filter
C2 C4
Ri
R1
R2
3 C1 1/2 TDA2320A 21 R3
R4
Ci
5 C3 1/2 TDA2320A 67
1st order
2nd order
3rd order
For fc = 3.4kHz and Ri = R1 = R2 = R3 = R4 = 10k, we obtain : C1 = 1.354 . C1 = 0.421 . C2 = 1.753 . 1 1 = 6.33nF . R 2 fc 1 1 = 1.97nF . R 2 fc 1 1 = 8.20nF . R 2 fc C3 = 0.309 . C4 = 3.325 . 1 1 . = 1.45nF R 2 fc 1 1 = 15.14nF . R 2 fc
The attenuation of the filter is 30dB at 6.8kHz and better than 60dB at 15kHz.
Figure 22 : Sixth-pole 355Hz Low-pass Filter (Chebychev type)
62620.47F 3 56k 1/2 TDA 2320A 1/2 TDA 2320A 7 10k 10k 3 1/2 TDA 2320A
1
10k
10k
5
1/2 TDA 2320A
7
1
10k
10k
3.54nF 60nF 220nF
5
16.3nF
86.1nF 161nF
This is a 6-pole Chebychev type with 0.25dB ripple in the passband.A decoupling stage is used to avoid the influence of the input impedance of the filter's characteristics.
The attenuation is about 55dB at 710Hz and reaches 80dB at 1065Hz. The in band attenuation is limited in practice to the 0.25dB ripple and does not exceed 1/2dB at 0.9fc.
10/12
TDA2320A
Figure 23 : Three Band Tone Control
47nF 11k 100k BASS 11k
47nF +15V 100nF 0.22F IN 56k 2 3 6 1/2 TDA2320A 4 100nF 3.6k 100k 22nF 1 1.8k 500k 4.7nF
11k MIDRANGE 3.6k
TREBLE 1.8k
6 1/2 TDA2320A 5 7 OUT
-15V
Figure 24 :Frequency Response of the Circuit of figure 23 A : all controls flat B : bass & treble boost, mid flat C : bass & treble cut, mid flat D : mid boost, bass & treble flat E : mid cut, bass treble flat
11/12
TDA2320A
PACKAGE MECHANICAL DATA 8 PINS -PLASTIC DIP
Dimensions A a1 B b b1 D E e e3 e4 F i L Z
Min. 0.51 1.15 0.356 0.204 7.95
Millimeters Typ. 3.32
Max.
Min. 0.020 0.045 0.014 0.008 0.313
Inches Typ. 0.131
Max.
1.65 0.55 0.304 10.92 9.75 2.54 7.62 7.62 6.6 5.08 3.81 1.52
0.065 0.022 0.012 0.430 0.384 0.100 0.300 0.300 0260 0.200 0.150 0.060
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 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 :
(c) 1997 SGS-THOMSON Microelectronics - Printed in Italy - All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdo m - U.S.A.
12/12
DIP8.TBL
3.18
0.125
PM-DIP8.EPS

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