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PDF SD7401RC Data sheet ( Hoja de datos )
| Número de pieza | SD7401RC | |
| Descripción | 6-CHANNEL AUDIO AMPLIFIER | |
| Fabricantes | Silan Microelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SD7401RC (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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SIX-CHANNEL AUDIO AMPLIFIER
DESCRIPTION
SD7401RC/SD7401SM is a 6-channel audio amplifier with built-in
microphone input amplifier. High quality audio output is available
through simple peripheral circuit and the amplifier gain can be
adjusted flexibly by external resistor. Its audio output signal-noise
ratio is 100dB, total harmonic distortion is 0.03% and the channel
separation is 84dB.
Based on BICMOS technology, SD7401RC/SD7401SM can stably
work in +5V/-12V system with built-in voltage regulator. The built-in
filter can improve the audio quality by attenuating the other signals.
The mute and ON/OFF POP suppression functions can suppress
the POP noise in the input signal.
It is widely used as pre-amplification in various stereo and 5.1-
channel audio systems to pre-amplify the signal from the main chip
audio.
SSOP-20-225-0.65
SOP-20-300-1.27
APPLICATIONS
FEATURES
* BICMOS technology
* Dual power supply (+5V/-12V)
* Built-in voltage regulator
* Low distortion
* Standby function
* Mute function and ON/OFF POP noise suppression
* CD/VCD/DVD
* Other audio systems
ORDERING INFORMATION
Part No.
SD7401RC
SD7401RCTR
SD7401SM
SD7401SMTR
Package
SSOP-20-225-0.65
SSOP-20-225-0.65
SOP-20-300-1.27
SOP-20-300-1.27
Marking
SD7401RC
SD7401RC
SD7401SM
SD7401SM
Material
Pb free
Pb free
Pb free
Pb free
Package Type
Tube
Tape&Reel
Tube
Tape&Reel
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
Downloaded from Elcodis.com electronic components distributor
REV:1.0 2010.02.24
Page 1 of 9
1 page  
FUNCTION DESCRIPTION
1. Channel amplifier
The second-order filter structure shown as above is adopted for 6-channel audio amplifier, with in-band gain of
about 12dB and -3dB bandwidth of 40kHz above which is well meet audio requirements. As principle structure,
in-band
gain
is
decided
by:
G
=
−
R2
R1
,
thus, gain can be adjusted by changing R1.
2. Microphone amplifier
The proportional amplifier shown as above is adopted for microphone amplifier with setting gain of about 29dB,
and capacitor C is used for high frequency signal filtering. As described above, the gain can be also adjusted by
changing R1.
3. Mute & ON/OFF POP noise control
Mute control pin (pin 4) controls 6-channel as mute by internal switches. It comes to mute mode when pin 4 is
connected to Vcc (high level) and comes to normal mode when connected to ground.
Pin 2 is used for POP noise restrain by connecting an external capacitor which can be increased appropriately
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.0 2010.02.24
Page 5 of 9
Downloaded from Elcodis.com electronic components distributor
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet SD7401RC.PDF ] | |
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