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PDF TDA7336 Data sheet ( Hoja de datos )
| Número de pieza | TDA7336 | |
| Descripción | STEREO PREAMP+ AMS+ DOLBY B* NOISE REDUCTION PROCESSOR | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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® TDA7336
STEREO PREAMP + AMS + DOLBY B*
NOISE REDUCTION PROCESSOR
DUAL CHANNEL PROCESSOR FOR PLAY-
BACK APPLICATIONS.
STEREO DOLBY B NR SYSTEM
LOW NOISE HEAD PREAMPLIFIER
MUTE, AMS (AUDIO MUSIC SENSOR)
FUNCTIONS
INTERNAL SWITCHES FOR EQUALIZATION
DOLBY REFERENCE LEVEL -6dBm
(388.2mVRMS)
MINIMUM NUMBER OF EXTERNAL COMPO-
NENTS
LOW SUPPLY CURRENT (18mA)
MIXED BIPOLAR/CMOS TECHNOLOGY
DESCRIPTION
The TDA7336 is a monolithic BICmos IC de-
signed for use in stereo cassette player systems.
The device includes two separate audio channels
composed by low noise preamplifier, Dolby B
noise reduction system and Audio Music Sensor.
The dual preamplifier contains mute, metal/nor-
mal facilities for amplification of low level signal in
applications requiring very low noise perform-
ances.
Each channel consists of two cascaded opera-
tional amplifiers.
The first one, AMP1, has a fixed gain of 36dB,
and allows magnetic heads connection directly to
ground. The second one, AMP2, is a standard op-
erational amplifier whose equalizing external
components fix the frequency response.
The Audio Music Sensor circuit detects the inter-
program space and then the starting point of mu-
sical programs (the interprogram time and pro-
gram detection time are externally selectable).
The device contains Dolby B decoder NR chains
requiring very few external components and do
not require coils.
* Dolby B and the Double-D symbol are
trademarks of Dolby Laboratories Li-
censing Corporation, San Francisco,
California 94103-4813, USA.
This device is available only to Licens-
ing and application information may be
obtained from Dolby Lab.
SO28
ORDERING NUMBER: TDA7336
PIN CONNECTION (Top view)
GND
INL
EQLI
EQLO
OUTL
DINL
AMS SW
INTP
INTS
MUTE
TCL
DOUTL
IREF
N.C.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28 EQ.SW
27 INR
26 EQRI
25 EQRO
24 OUTR
23 DINR
22 GND DIG
21 AMSOUT
20 AMSGin
19 NR SW
18 TCR
17 DOUTR
16 VREF
15 Vs
D94AU052
November 1999
1/20
1 page  
TEST CIRCUIT
TDA7336
5/20
5 Page 
PINS DESCRIPTION: Internal Configuration
Figure 7: PINS: 12 - 17
Figure 8: PIN: 8
TDA7336
Figure 9: PINS: 3 - 26
Figure 10: PINS: 4 - 25
Figure 11: PINS: 5 - 24
Figure 12: PINS: 7
11/20
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet TDA7336.PDF ] | |
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