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SAA7348GP

Features: · Focus servo loop· Radial servo loop· Built-in access procedure with fast track count possibilities· Sledge motor servo loop with pulsed sledge support· High speed error correction, up to sixteen times over-speed· Supports three different over-speed ranges with only one external crystal...

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SeekIC No. : 004484057 Detail

SAA7348GP: Features: · Focus servo loop· Radial servo loop· Built-in access procedure with fast track count possibilities· Sledge motor servo loop with pulsed sledge support· High speed error correction, up to...

SAA7348GP Data Sheet

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Part Number:
SAA7348GP
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/12/26

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Product Details

Description



Features:

· Focus servo loop
· Radial servo loop
· Built-in access procedure with fast track count possibilities
· Sledge motor servo loop with pulsed sledge support
· High speed error correction, up to sixteen times over-speed
· Supports three different over-speed ranges with only one external crystal
· Lock-to-disc mode
· Full turntable motor control
· Full error correction strategy, t = 2 and e = 4
· All standard decoder functions implemented digitally
· Adaptive digital HF equalizer
· FIFO overflow concealment for rotational shock resistance
· Digital audio interface (EBU), audio and data
· 2 and 4 times oversampling integrated digital filter, including fs mode
· Audio data peak level detection
· Kill interface for DAC deactivation during digital silence
· All TDA1301 (DSIC2) digital servo functions
· Low focus noise
· Improved playability on ABEX TCD-721R, TCD-725 and TCD-714 discs
· Automatic closed loop gain control available for focus and radial loops
· On chip clock multiplier allows the use of 8.4672 MHz crystal
· S2B serial interface with host controller
· Double speed servo
· Integrated engine controller (high speed embedded 80C51)
· External program support.


Pinout

Connection Diagram


Specifications

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNITS
VDDD(pads) digital supply voltage for pad cells notes 1 and 2 -0.5 +6.5 V
VDDD(core) digital supply voltage for the core notes 2 and 3 -0.5 +4.0 V
VDDA analog supply voltage notes 2 and 3 -0.5 +4.0 V
VI input voltage (any input)   -0.5 VDD + 0.5 V
VO output voltage (any output)   -0.5 +6.5 V
VDDA-DDD(core) supply voltage difference

between the analog and digital (core) supply

voltages		   - ±0.25 V
IO output current (continuous)   - ±20 mA
II(d) diode DC input current (continuous)   - ±20 mA
Tamb operating ambient temperature   0 70 °C
Tstg storage temperature   -55 +125 °C
Ves electrostatic handling note 4 -2000 +2000 V
note 5 -200 +200 V


Notes
1. All pad supply pins (VDDDn(pads)) must be connected externally to the same power supply.
2. All VSS pins must be connected to the same external voltage.
3. All analog and digital core supply pins (VDDA and VDDDn(core)) must be connected externally to the same power supply.
4. Equivalent to discharging a 100 pF capacitor via a 1.5 k series resistor with a rise time of 15 ns.
5. Equivalent to discharging a 200 pF capacitor via a 2.5 H series inductor.




Description

The SAA7348 All Compact Disc Engine (ACE) combines the functionality of a CD decoder (LO9585), a digital servo (OQ8868) and a microcontroller core (80C51 based) on a single chip. It was developed for high speed CD-ROM applications but, due to the large scale integration, SAA7348 can also be used in other CD applications. The internal microcontroller makes it possible to develop other applications quickly. The microcontroller can operate with internal or external ROM.

Additional features of SAA7348 include:
· High level integration
· Improved communication speed.




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