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NXP Semiconductors Electronic Components Datasheet

SAA7335 Datasheet

DSP for CD and DVD-ROM systems

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INTEGRATED CIRCUITS
DATA SHEET
SAA7335
DSP for CD and DVD-ROM
systems
Preliminary specification
File under Integrated Circuits, IC01
1997 Aug 11


NXP Semiconductors Electronic Components Datasheet

SAA7335 Datasheet

DSP for CD and DVD-ROM systems

No Preview Available !

Philips Semiconductors
DSP for CD and DVD-ROM systems
Preliminary specification
SAA7335
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.
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.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
VDDD
IDDD
VDDA
IDDA
fxtal
Tamb
Tstg
digital supply voltage
digital supply current
analog supply voltage
analog supply current
crystal input frequency
operating ambient temperature
storage temperature
MIN.
4.5
4.5
4
20
55
TYP.
5.0
70
5.0
70
25
MAX.
5.5
300
5.5
300
tbf
+70
+125
UNIT
V
mA
V
mA
MHz
°C
°C
1997 Aug 11
2


Part Number SAA7335
Description DSP for CD and DVD-ROM systems
Maker NXP
Total Page 30 Pages
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