Moteur de recherche de fiches techniques de composants électroniques
Selected language     French  ▼
Nom de la pièce

BA7746S Datasheet(Fiches technique) 1 Page - Rohm

Numéro de pièce BA7746S
Description  VCR Hi-Fi audio signal REC / PB amplifier
Télécharger  12 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Fabricant  ROHM [Rohm]
Site Internet

 1 page
background image
Video ICs
VCR Hi-Fi audio signal REC / PB
BA7746S / BA7746FS
The BA7746S and BA7746FS contains the recording and playback amplifiers required for Hi-Fi VCR signal process-
ing. The recording system uses a constant-current amplifier with AGC to eliminate the need to adjust the recording
current, and ensure stable operation as the head wears. The IC also features REC MUTE and OVER REC functions.
The playback system has a high-gain preamplifier, a low- offset head switch, VCA, and an EP-gain amplifier.
In addition, all functions operate off a single 5V supply, and a H / L control system eliminates the need for special
power supplies for the recording and playback systems. The IC has low power consumpution, and comes in a com-
pact 32-pin SSOP-A package that requires little area on the PCB. It will improve the reliability and performance of
your designs while reducing external component requirements.
1) The low-noise playback amplifier has a total gain of
79dB (Typ.). Designed for VHS-band operation with
low external parts count. It has two built-in circuits
for Hi-Fi VCR operation.
2) The circuit has been designed to suppress head-
switching noise.
3) Built-in EP / SP gain switching function that boosts
the playback gain by 5dB.
4) Built-in VCA for easy playback output adjustment.
5) High-output recording amplifier for audio FM record-
6) Constant-current drive povides stable recording
characteristics when the load (head impedance) is
7) Built-in recording level AGC eliminates the need to
adjust recording current.
8) Built-in low-pass filter limits the input bandwidth of
the recording amplifier.
9) Built-in OVER REC recording current amplifier
function and REC MUTE function that stops record-
ing output.
10) Low power consumption. Operates off a single 5V
power supply.
11) Record / playback switching can be done directly
via the system controller, and consumes littele
12) Possible to construct a high-performance audio
system by pairing this chip with a Hi-Fi-audio signal
processing IC.
Absolute maximum ratings (Ta = 25°C)
– 10 ~ + 70
– 55 ~ + 125
1 When mounted on a 90mm × 50mm × 1.6mm glass epoxy board, reduced by 10.5mW for each increase in Ta of 1°C over 25°C.
2 When mounted on a 90mm × 50mm × 1.6mm glass epoxy board, reduced by 8mW for each increase in Ta of 1°C over 25°C.
Power supply voltage
Operating temperature
Storage temperature

Html Pages

1  2  3  4  5  6  7  8  9  10  11  12 

Datasheet Download

Numéro de composants électroniques

Numéro de pièceDescription des composantsHtml ViewFabricant
BA7745FSVCR Hi-Fi audio signal REC / PB amplifier with flying-erase oscillator 1 2 3 4 5 MoreRohm
AN3316KRecording/Playback Amplifier IC for VCR Hi-Fi Audio 1 2 Panasonic Semiconductor
TA1246FHI-FI AUDIO SIGNAL PROCESSOR FOR VHS VCR 1 2 3 4 5 MoreToshiba Semiconductor
M61518FPAUDIO SIGNAL PROCESSOR WITH REC/PLAY BACK AMPLIFIER 1 2 3 4 5 MoreMitsubishi Electric Semiconductor
BA7757BKSwitchless REC / PB amplifier for standard audio signal processing 1 2 3 4 5 Rohm
AN3672NFBPAudio signal processor IC for HiFi VCR incorporating EIAJ sound multiplex system 1 2 3 4 5 MorePanasonic Semiconductor
BH7801BKSingle chip Hi-Fi audio signal processor 1 2 3 4 5 MoreRohm
LA7256high-Fidelity Audio Signal Record/Playback Processing Circuit for VCR Products 1 2 3 4 5 MoreSanyo Semicon Device
TDA729828W Hi-Fi AUDIO POWER AMPLIFIER WITH MUTE / STAND-BY 1 2 3 4 5 MoreSTMicroelectronics
BH7802KSingle chip Hi-Fi audio signal processor 1 2 3 4 5 MoreRohm

Lien URL

AllDATASHEET vous a-t-il été utile ?   [ DONATE ]  

À propos de Alldatasheet   |   Publicité   |   Contactez-nous   |   Politique de confidentialité   |   Favoris   |   Echange de liens   |   Fabricants
All Rights Reserved ©

Mirror Sites
English :  ,  |   Chinese :  |   German :  |   Japanese :  |   Russian :
Korean :   |   Spanish :  |   French :  |   Italian :  |   Portuguese :  |   Polish :