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Part: SAA7335GP/M1
Category:
Description: SAA7335; DSP For CD And DVD ROM Systems
Company: Philips Semiconductors
Datasheet: Download SAA7335GP/M1 datasheet File size : 700 kB
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Datasheet text preview:
INTEGRATED CIRCUITS
DATA SHEET
SAA7335 DSP for CD and DVD-ROM systems
Preliminar y specification Supersedes data of 1997 Aug 11 File under Integrated Circuits, IC01 2001 apr 05
Philips Semiconductors
Preliminary specification
DSP for CD and DVD-ROM systems
FEATURES · Compatibility with CD-I, CD-ROM, MPEG-video DVD-ROM and DVD-video applications · Designed for very high playback speeds · Typical CD-ROM operation up to n = 12, DVD-ROM to n = 1.9, maximum rates (tbf) · Matched filtering, quad-pass error correction (C1-C2-C1-C2), overspeed audio playback function included (up to 3 kbytes buffer) · Lock-to-disc playback, Constant Angular Velocity (CAV), pseudo-Constant Linear Velocity (CLV) and CLV motor control loops · Interface to 32 kbytes SRAM for DVD error correction and de-interleave · Sub-code/ header processing for DVD and CD formats · Programmable HF equalizer · In DVD mode it is still compatible with Philips block decoders · Sub-CPU interface can be parallel or fast I2C-bus · On-chip clock multiplier. GENERAL DESCRIPTION This device is a high-end combined Compact Disc (CD) and Digital Versatile Disc (DVD) compatible decoding device. The device operates with an external 32 kbytes S-RAM memory for de-interleaving operations. The device provides quad-pass error correction for CD-ROM applications (C1-C2-C1-C2) and operates in lock-to-disk, CAV, pseudo CLV and CLV modes. QUICK REFERENCE DATA SYMBOL VDDD IDDD VDDA IDDA fxtal Tamb Tstg PARAMETER digital supply voltage digital supply current analog supply voltage analog supply current crystal input frequency operating ambient temperature storage temperature - 4.5 - 4 -20 -55 MIN. 4.5 70 5.0 70 25 - - TYP. 5.0
SAA7335
In DVD modes double-pass C1-C2 error correction is used which is capable of correcting up to 5 C1 frame errors and 16 C2 frame errors. The SAA7335 contains all the functions required to decode an EFM or EFM+ HF signal directly from the laser pre-amplifier, including analog front-end, PLL data recovery, demodulation and error correction. The spindle motor interface provides both motor control signals from the demodulator and, in addition, contains a tachometer loop that accepts tachometer pulses from the motor unit. The SAA7335 has two independent microcontroller interfaces. The first is a serial I2C-bus and the second is a standard 8-bit multiplexed parallel interface. Both of these interfaces provide access to a total of 32 × 8-bit registers for control and status. This data sheet contains an descriptive overview of the device together with electrical and timing characteristics. For a detailed description of the device refer to the user guide "SAU/UM96018". Supply of this CD/DVD IC does not convey an implied license under any patent right to use this IC in any CD or DVD application.
MAX. 5.5 300 5.5 300 tbf +70 +125 V
UNIT mA V mA MHz °C °C
2001 apr 05
2
Philips Semiconductors
Preliminar y specification
DSP for CD and DVD-ROM systems
ORDERING INFORMATION TYPE NUMBER SAA7335GP PACKAGE NAME LQFP100 DESCRIPTION
SAA7335
VERSION SOT407-1
plastic low profile quad flat package; 100 leads; body 14 × 14 × 1.4 mm
BLOCK DIAGRAM
handbook, full pagewidth
SRAM 32 KBYTES
HF input
ADC
PLL BIT DETECTOR
DEMODULATOR EFM/EFM+ DECODER I2S-BUS OUTPUT INTERFACE block decoder output
clock input
CLOCK GENERATOR
SPINDLE MOTOR CONTROL
SAA7335
SUB-CPU INTERFACE
MGK242
motor control
Fig.1 Simplified block diagram.
2001 apr 05
3
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