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LC786800E Datasheet, PDF (3/26 Pages) Sanyo Semicon Device – Compressed Audio signal Processor IC with USB host controller | |||
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LC786800E
<Audio output processing block>
ï· Analog Audio data output (One channel by stereo)
Eight-fold over-sampling digital filter (24bit)
Secondary LPF for audio output
ï· Electronic Volume/Fader
Output channel : Left Front (LF)/Left Rear (LR), Right Front (RF)/Right Rear (RR)
Output Range : 0dB to -90dB, -ï¥
0dB to -32dB : Analog control, 0.25dB step
-32dB to -70dB : Analog control, 1.0dB step
-70dB to -90dB : Digital attenuator control
Decrease the noise at the volume change timing by the digital and analog composite control.
Individual volume control for LF, LR, RF and RR output is available.
ï· Digital Audio data output (One channel by stereo)
Four lines interface, Format: IIS, MSB first right justified, etc.
ïExternal interface functionsï
<USB host control block>
ï· Open Host Controller Interface 1.0a
ï· Universal Serial Bus Specification 1.1
Supports up to Full speed (12MHz)for USB2.0
Only detection at the device insertion is available for Low speed specification.
ï· Supports four kinds of transfer type (Control/Bulk/Interrupt/Isochronous)
ï· Two USB ports
<SD memory card host control block>
ï· Multimedia Card Specification v2.11
ï· Secure Digital Memory Card Physical Layer Specification v0.96
* Individual contract is necessary to use SD memory card controller. For detail, please contact to us.
ïInternal Microcontroller functionsï
<Sequencer control>
ï· USB, SD memory card playback control
USB/SD files analysis, etc.
ï· Audio playback control
Various digital audio filter control, Electronic volume control, etc.
<Communication control between main controller>
ï· Communication format: SIO
<Peripheral interface block>
ï· GPIO port
37 ports maximum (Shared with other functions. Several pins are 5V tolerant.)
ï· External interrupt pins 4 pins maximum (Shared with other functions.)
ï· Serial interface
SIO
clock synchronized full duplex (3 lines) 3 channels
UART
full duplex
2 channels
IIC
master function
1 channel
<Program memory block>
ï· Flash memory
Program version up from the external media (USB/CDROM*) or main controller is available.
* The update of program from CDROM will only be available if CD system is used with this IC.
<Others>
ï· Watch Dog Timer
Notify to outside from the pin or reset internally.
ï· Power management
2 kinds of sleep mode
(1) Only CPU core operates at slow clock and clocks for other blocks are stopping.
(2) All clocks are stopping.
No.A2082-3/26
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