Sanyo EP93F - Manual (Page 9)

W LC750100W LC75010W LC75010W LC83200W LC83200W LC83200W
VFLO
C 1 µ
DAC
(24bit) L.P.F
Vref
R VFLI
C 1 µ
DAC
(24bit) L.P.F
Vref
R VFRI
VFRO
C 1 µ
DAC
(24bit) L.P.F
Vref
R
VRRO
VRLI
VRLO
VRRI
AOUT4
DVDD
DVSS
AOUT2
AOUT1
AOUT3
C 1 µ
DAC
(24bit) L.P.F
Vref
R
3.3V
AVDD
AVSS
VREF
5V
Data RAM
(896w)
Program ROM
(8kw)
DSP · CORE
(24bit)
Ars4
VCO
Ars3
AINLN1
AINRP1
AINRN1
AINLP2
AINRP2
AINLP3
AINRR3
AINLP4
AINRP4
AINLP1
Als4
Als3
Analog Source Selector
ADC
(20bit)
ADC
(20bit)
PLL
VCO
CE
XOUT
XIN CL DI DO
BUSY RESB PWDB
INTB
TEST14
CCB
RESET
PLL STOP
PLL
STOP
RESET
LRCLOCK SCLOCK SDI0,1,2 SDO
3
SYS CLK
R
MCLOCK
VCNT
ENABLE
CLOCK
DATA
PDO
PLL
L R L R
Ls Rs
C LFE
RAM
11.5k X 24bits
ROM
15k X 32bits
FIR Filter
Core
(DSP)
RESET / STOP
13 Car Audio 14 Car Audio
Features
Features
Overview Overview
Block Diagram Block Diagram
Dolby Headphone IC
■ Supports Dolby Headphone room modes DH1, DH2, DH3, and Stereo Mixdown.
■ Sampling rate of 44.1/48 kHz
■ Audio serial input: 2 channels (L, R) or 5.1 channels (L, C, R, Ls, Rs, LFE)
■ Audio serial output: 2 channels (L, R)
■ External memory not required
■ 50 MHz internal operation frequency (External clock: 27 MHz/13.5 MHz or 512/256 fs clock)
■ 2 power supplies (Logic block: 2.5 V; I/O block: 3.3 V)
■ PLL stop (PLL STOP pin)
■ Registers can be controlled through serial setting via microcontroller I/F or parallel setting via pins.
■ Package: SQFP48 (7 7)
The LC75010W is a 1-chip DSP that is ideal for car stereos as it incorporates major required functions
such as A/D, D/A, and a DSP core. This is a custom IC that incorporates DSP software based on the user
specifications. The LC83200W is an IC that integrates the functions required for Dolby Headphone on one chip. It
generates a Dolby Headphone audio output signal from either a 5.1-channel or 2-channel audio input.
The LC83200W provides DH1, DH2, DH3, and Stereo Mixdown as room modes and can be used in all
products that have a headphone pin.
■ Analog source selector
◆ Single input: 3 systems, differential input: 1 system
■ A/D
◆ Stereo: 1 system
■ DSP core
◆ 24-bit fixed decimal point DSP
■ D/A
◆ 4 systems
■ Analog volume
◆ 4 systems
■ Microcontroller interface
◆ 1 system (SANYO Electric original format)
(CCB: Computer Control Bus)
■ Analog characteristic (S/N)
◆ Typ. 90 dB (Note)
■ Analog characteristic (dynamic range)
◆ Typ. 90 dB (Note)
■ Analog characteristic (THD + N)
◆ Typ. -85 dB (Note)
■ Power supply voltage (5 V)
◆ 4.75 V to 5.25 V
■ Power supply voltage (3.3 V)
◆ 3.0 V to 3.6 V
■ Operating ambient temperature
◆ -40 ° C to 85 ° C
■ Package: SQFP100 (14 14)
Car Audio DSP Car Audio DSP Car Audio DSP
Data I/O I/F
Host I/F
Output registers Input registers
Control register
Data
Program
Manufactured under license from Dolby Laboratories.
"Dolby" and the double-D symbol are trademarks of Dolby Laboratories.
Confidential unpublished works. Copyright 1998–1999 Dolby Laboratories.
All rights reserved.
CCB is a SANYO’s original bus format and all the
bus addresses are controlled by SANYO.
Note: Analog characteristics are according to SANYO Electric measurement conditions.
R
R