DS886
DB9
C
op
yrigh
t 201
2
Cirrus
Log
ic,
Inc
6-18
CDB47xxD
Differentia
l Sch
ematic
D
escription
s
CDB47xxx User’s Manual
Figure 6-13. CDB47xxD (Differential) Board Block Diagram
CDB47XXXD_REV_A. s c h- 1 - Thu J an 29 18: 21: 59 2009
CS47xxx
I2S IN HDR
I2S OUT
HDR
(8 ch)
8ch
RCA
OUT
Power In
USB MCU
Silicon Labs
SMALL
20-PIN HDR
SPI_HOLD
Control
Co
ntro
l
EX
T
C
TR
L
SE
L
Power
LEDs
5:1
mux
ADC
SPDIF
Rx
SPDIF Tx
DAC
I2S in
(8 ch)
I2S out
(8 ch)
Control
USB
(DSP
Composer)
CDB47XXXD
Analog
Analog
Digital
Digital
Digital
DSP CORE
Digital
Use
DaughterCard
SRC
ADC
LCD Panel
Control (Parallel Port)
B1
B2
B3
B4
Buttons
Rotary Knob
GPIO
Mic Input
Jack
Mic
Pre-Amp
Circuitry
Stereo 1/8"
IN
2 ch (x4)
Stereo 1/8"
IN
2ch
GPIO
GPIO
HDR
SPDIF - IN
OPTICAL
SPDIF - IN
COAX
Wall Adapter
Buffer
Diff
Amp
Diff
Amp
20 Pin HDR
Standard 20 Pin Debug Header (Serial Control & Debug)
I2S HDRs
Header will be available to probe / bring in I2S signals
DSP Daughtercard
The Chronos DSP Daughercard will have only the DSP.
This allows us to easily swap out the DSP for different
CS47xxx Family members.
DAO Buttons/LEDs
DAO pins on Chronos are also GPIO. These buttons/LEDs
Can be used by the new primitives being developed
SPDIF - OUT
OPTICAL
Buffer
SPDIF - OUT
COAX
SPI
FLASH
I2C
FLASH
