|
|
PDF 1203 Data sheet ( Hoja de datos )
| Número de pieza | 1203 | |
| Descripción | InGenius High-CMRR Balanced Input Line Receiver | |
| Fabricantes | THAT | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de 1203 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
|
No Preview Available !
T H AT Corporation
FEATURES
· High common-mode rejection
(typical 90 dB at 60 Hz) maintained
under real-world conditions
· Excellent solution for hum and
groundloop suppression
· Transformer-like noise rejection in
an 8-pin IC, at fraction of
transformer cost and size
InGeniusâ High-CMRR
Balanced Input Line Receiver
THAT 1200, 1203, 1206
APPLICATIONS
· Balanced input stages
· Summing amplifiers
· Transformer front-end
replacements
· ADC front-ends
Description
The THAT 1200 series of InGenius balanced
line receivers are designed to overcome a serious
limitation of conventional balanced input stages
— notoriously poor common mode rejection in
real world applications. While conventional input
stages may exhibit good rejection characteristics
in the lab and on paper, they perform poorly
when fed from even slightly unbalanced source
impedances — a common situation in almost any
pro sound environment.
Developed by Bill Whitlock of Jensen Trans-
formers, the patented InGenius input stage uses a
unique bootstrap circuit to raise its common-
mode input impedance into the megohm range,
but without the noise penalty that comes from
high-valued resistors. InGenius line receivers
maintain their high CMRR over a wide range of
source impedance imbalances — even when fed
from single-ended sources.
IN-
Ra
Rb
IN+
OA1
+1
Rc
OA2 Rd
+1
R1
OA4
+1
R3
R2
OA3
-
+
R4
R5
Vcc
Vee
Vout
REF
Pin Name
Ref
In-
In+
Vee
CM In
Vout
Vcc
CM Out
DIP Pin
1
2
3
4
5
6
7
8
SO Pin
3
4
5
6
11
12
13
14
Table 1. 1200-series pin assignments
CM IN
CM OUT
Cb
Figure 1. THAT1200-series equivalent circuit diagram
Gain
Plastic DIP Plastic SO
0 dB
1200P
1200S
-3 dB
1203P
1203S
-6 dB
1206P
1206S
Table 2. Ordering information
Protected under U.S. Patent No. 5,568,561 and other patents pending.
InGeniusâ is a trademark of THAT Corporation.
600033 Rev 0A
THAT Corporation; 45 Sumner Street; Milford, Massachusetts 01757-1656; USA
Tel: +1 (508) 478-9200; Fax: +1 (508) 478-0990; Web: www.thatcorp.com
1 page  
600033 Rev 0A
Preliminary Information
Page 5
21
3
5 423 1
J1
XLR-F
Vcc
D1
12V
Cb
220uF
+
(see text)
Vcc
R1
100R
R2
100R
C2
470pF
C3
470pF
R3
4k7
C4
100pF
D3
D5
D4
D6
28
IN- 7
CM
U1
5
CM
IN
OUT VCC
VEE
OUT
REF
3 IN+ 4
1
optional RFI protection
D2
12V
Vee
Vee
6
OUT
Figure 3. THAT1200P typical application circuit
If, however, there is the possibility of a DC voltage
appearing across the inputs of the line receiver, a
portion of that voltage will appear directly across the
terminals of capacitor Cb. In that case, choose the
capacitor’s voltage rating so that it is capable of han-
dling the expected level of DC voltage. If the polarity
of the DC voltage is unknown, or may swing to either
polarity, the use of a non-polarized electolytic is
highly recommended.
21
3
J1
XLR-F
54 231
D3
Vcc
D1
12V
D4
C1 100pF NPO
C2 100pF NPO
D5 D6
D2
12V
Vee
Cb
+
220uF
Vcc
28
IN- 7
CM
U1
5
OUT
CM
IN
VCC
OUT
VEE
REF
3 IN+ 4
1
6
Vee
OUT
Figure 4. THAT1200P showing simplified RFI protection scheme
THAT Corporation; 45 Sumner Street; Milford, Massachusetts 01757-1656; USA
Tel: +1 (508) 478-9200; Fax: +1 (508) 478-0990; Web: www.thatcorp.com
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet 1203.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| 120-001 | 72 Annular Convoluted Tubing Thermally Stabilized Kynar |  Glenair |
| 1200911H | PGM12009 |  Aries Electronics |
| 1200AP100 | PWM Current-Mode Controller |  ON Semiconductor |
| 1200AP40 | NCP1200AP40 | ON Semiconductor |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |