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零件编号 | STA1050 | ||
描述 | CD-Audio one-chip | ||
制造商 | STMicroelectronics | ||
LOGO | |||
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STA1050
CD-Audio one-chip
DATA BRIEF
Features
■ CD-R, CD-RW playback
■ CLV (1x, 2x, 4x) & CAV mode (6x)
■ 3.3V supply / 1.8V supply / 3.3V capable and
5V tolerant I/O
■ Low power consumption at top speed (tbd)
■ Power down mode
■ Power On Reset / Brownout controller
■ 33.8688MHz external quartz/resonator
■ LQFP128 package
■ Temperature range -40/+85°C
Embedded ST7 Micro-controller
■ 8-bit MCU with 4-stage pipeline
■ 8.4672MHz clock with option up to
11.2896MHz
■ 56Kbyte internal ROM (4Mb eFlash for debug)
■ 4Kbytes internal RAM
■ I2C master/slave interface (400 kHz) + 1 CRQ line
Analogue Front-end Part
■ A, B, C, D, E, F voltage inputs
■ Automatic gain and offset control for diode signals
■ ALPC circuit for laser control with integrated
Power MOS
■ 8-bit 2channels general purpose ADC
Digital Servo
■ Automatic fine gain/balance/offset adjustment
for tracking and focus
■ Embedded 16bit servo DSP (33.8688MHz)
with programmable sampling rate
■ 1.7Kx32 DSP program RAM
■ 256x16 DSP coefficient RAM
■ 256x16 DSP data RAM
■ PDM actuator controls
(Focus/Tracking/Spindle/Sledge)
■ Embedded Stepping Sledge motor controller
■ CLV & CAV spindle control
■ Defect generator logic
Acquisition
■ Digital Interpolator & Equalizer
Order code
LQFP128
■ Full range adjustment-free digital PLL
■ EFM Demodulation and Synchronisation
■ Q subcode & CD Text Decoder
Error Correction
■ CIRC, capable of dual C1 and quadruple C2
erasure corrections
■ jitter absorbing capacity ±24 frames
Schock-Proof controller
■ Up to 64Mbit External SDRAM interface
■ 4/8/16 bit data bus interface
■ ADPCM (4:1) lossy compression for extended
shock proof capability
Digital Interfaces
■ I2S + EIAJ CP-340 output interface with slave
mode capability (external clock)
■ C2PO output
■ SPDIF transmitter (IEC958)
■ Soft audio mute/fade/attenuation
■ De-emphasis filter
■ I2S input for audio DAC if external audio
processing (i.e. MP3 decoder) (or 3GPIOs)
■ 8 dedicated GPIOs
■ MLB interface for direct MOST
Audio Features
■ Digital Equalizer for bass/tremble control
■ Built-in stereo DAC with 96 dB SNR
■ De-emphasis filter built-in
Development Environment
■ On Chip ST7 Emulation (2 dedicated pins)
■ C language compiler for ST7, Macro assembler,
Linker, archiver, functional simulator
■ Windows debugger
Part number
STA1050
Package
LQFP128
Packing
Tube
November 2006
Rev 1
For further information contact your local STMicroelectronics sales office.
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System description
3 System description
Figure 2. Complete CD Module application
Sled
Laser OPU
Spindle
Motor
Sled
Motor
33.8688MHz
SDRAM
(up to 64Mbit)
Motor Driver IC
(Spindle, Focus,Tracking, Sledge, Tray)
Temp
Sensor
A, B, C, D, E, F
SDRAM
Controller
SPDIF
I2Sout
LD/MD
STA1050
LQFP128
I2Sin
PDM /
STEPPING
(ROM or FLASH)
ANALOG
AUDIOOUT
AUX ADC
GPIOs RST
I2C
RS232
STA1050
Digital Outputs
Digital Inputs
(from Compr . Audio Proc.)
Audio Out L/R
HOST uP
System Monitoring
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.
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页数 | 11 页 | ||
下载 | [ STA1050.PDF 数据手册 ] |
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