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STA1050 датащи(PDF) 8 Page - STMicroelectronics

номер детали STA1050
подробное описание детали  CD-Audio one-chip
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA1050 датащи(HTML) 8 Page - STMicroelectronics

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System description
STA1050
8/11
3
System description
Figure 2.
Complete CD Module application
STA1050 is an high integration, high performance chip which integrates most required
components for CD module application. The only external components needed are:
a ceramic oscillator with a nominal frequency of 33.8688 MHz. All frequencies
needed in STA1050 are internally synthesised thanks to a PLL.
a motor driver IC to drive focus, tracking, spindle, sledge and tray motors
a SDRAM to implement shock-proof handling (if needed)
STA1050 includes an embedded 8-bit CPU (ST7) running from an internal ROM (or Flash
for debug) Program memory.
The laser diode is driven directly using an embedded power PMOS.
2 analog inputs and 8GPIOs are available to monitor sensors and switches or to control
auxiliary circuitry.
An embedded Audio DAC generates a stereo audio output. This DAC can use as input a
digital stream received by the I2Sin interface from an external source, for example a
compressed audio processor.
Several digital outputs are available: SPDIF, I2S, EIAJ and a MLB (Media Local Bus)
interface which allows STA1050 to be directly interfaced to current and future MOST
networks.
Spindle
Motor
Sled
OPU
Sled
Motor
Laser
RS232
Motor Driver IC
(Spindle, Focus,Tracking , Sledge, Tray)
Spindle
Motor
Sled
OPU
Sled
Motor
Laser
RS232
Motor Driver IC
(Spindle, Focus,Tracking , Sledge, Tray)
LD/MD
A, B, C, D, E, F
STA1050
LQFP128
(ROM or FLASH)
ANALOG
AUDIOOUT
I2C
HOST uP
Digital Outputs
Audio Out L/R
PDM /
STEPPING
SDRAM
(up to 64Mbit)
SDRAM
Controller
System Monitoring
SPDIF
33.8688MHz
AUX ADC
Temp
Sensor
GPIOs
RST
I2Sout
I2Sin
Digital Inputs
(from Compr . Audio Proc.)
AUX ADC
Temp
Sensor
GPIOs
RST
I2Sout
I2Sin
Digital Inputs
(from Compr . Audio Proc.)
Spindle
Motor
Sled
OPU
Sled
Motor
Laser
RS232
Motor Driver IC
(Spindle, Focus,Tracking , Sledge, Tray)
Spindle
Motor
Sled
OPU
Sled
Motor
Laser
RS232
Motor Driver IC
(Spindle, Focus,Tracking , Sledge, Tray)
LD/MD
A, B, C, D, E, F
STA1050
LQFP128
(ROM or FLASH)
ANALOG
AUDIOOUT
I2C
HOST uP
Digital Outputs
Audio Out L/R
PDM /
STEPPING
SDRAM
(up to 64Mbit)
SDRAM
Controller
System Monitoring
SPDIF
33.8688MHz
AUX ADC
Temp
Sensor
GPIOs
RST
I2Sout
I2Sin
Digital Inputs
(from Compr . Audio Proc.)
AUX ADC
Temp
Sensor
GPIOs
RST
I2Sout
I2Sin
Digital Inputs
(from Compr . Audio Proc.)


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