|
|
Numéro de référence | HT8972 | ||
Description | Voice Echo | ||
Fabricant | Holtek Semiconductor | ||
Logo | |||
1 Page
HT8972
Voice Echo
Features
· Operating voltage: 4.5V~5.5V
· ADM algorithm
· Low noise
- Echo mode: -85dB
- Surround mode: -90dB
· Low distortion rate
- Echo mode: 1%
- Surround mode: 0.2%
· Built-in 40Kb SRAM
· Automatic reset function
· 16-pin DIP/SOP package
Applications
· Television
· Karaoke systems
· Video disc player
· Sound equipments
General Description
The HT8972 is an echo/surround effect processor. It is
designed for various audio systems including karaoke,
television, sound equipments, etc. The chip consists of
a built-in pre-amplifier, VCO or Voltage Control OSC,
40Kb SRAM, A/D and D/A converters as well as delay
time control logic.
Its built-in 40Kb SRAM can generate delay time effect
and can control the delay time value through the exter-
nal VCO resistor.
The VCO circuit can reduce external components and
make it easy to adjust the delay time.
Block Diagram
L P F 1 _ IN
LP F1_O U T
L P F 2 _ O U T L P F 2 _ IN O P 2 _ O U T O P 2 _ IN O P 1 _ IN O P 1 _ O U T C C 0
CC1
COM P
LP F1
LP F2
4 .7 k W
4 .7 k W
MOD
DEM
1 /2 V C C
AU TO
RESET
DI
M O M I C LO C K
4 0 K B its
RAM
VCO
VCC REF
AG ND DG ND
O SC _O v c o
DO0 DO1
Rev. 1.00
1 December 23, 2008
|
|||
Pages | Pages 13 | ||
Télécharger | [ HT8972 ] |
No | Description détaillée | Fabricant |
HT8970 | Voice Echo | Holtek Semiconductor Inc |
HT8972 | Voice Echo | Holtek Semiconductor |
US18650VTC5A | Lithium-Ion Battery | Sony |
TSPC106 | PCI Bus Bridge Memory Controller | ATMEL |
TP9380 | NPN SILICON RF POWER TRANSISTOR | Advanced Semiconductor |
www.DataSheetWiki.com | 2020 | Contactez-nous | Recherche |