(Hong Kong)
Product Summary
The SAA7335HL is a high-end combined compact disc (CD) and digital versatile disc (DVD) compatible decoding device. The SAA7335HL operates with an external 32 kbytes S-RAM memory for de-interleaving operations. The SAA7335HL 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 SAA7335HL 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.
Parametrics
SAA7335HL absolute maximum ratings: (1)VDDD, digital supply voltage: -0.3 to +6.5 V; (2)VDDA, analog supply voltage: -0.3 to +6.5 V; (3)Vi(max), maximum input voltage (any input)note 1: -0.3 to VDD + 0.5 V; (4)Vo(max), maximum output voltage (any output)note 1: VDD + 0.5 V; (5)Io(max), maximum output current (each output): ±10 mA; (6)Tamb, operating ambient temperature: -20 to +70 °C; (7)Tstg, storage temperature: -55 to +125 °C; (8)VESD, electrostatic handling, human body model note 2: -2000 to +2000 V, machine model note 3: -200 to +200 V.
Features
SAA7335HL features: (1)Compatibility with CD-I, CD-ROM, MPEG-video DVD-ROM and DVD-video applications; (2)Designed for very high playback speeds; (3)Typical CD-ROM operation up to n = 12, DVD-ROM to n = 1.9, maximum rates (tbf); (4)Matched filtering, quad-pass error correction (C1-C2-C1-C2), overspeed audio playback function included (up to 3 kbytes buffer); (5)Lock-to-disc playback, Constant Angular Velocity (CAV), pseudo-Constant Linear Velocity (CLV)and CLV motor control loops; (6)Interface to 32 kbytes SRAM for DVD error correction and de-interleave; (7)Sub-code/ header processing for DVD and CD formats; (8)Programmable HF equalizer; (9)In DVD mode it is still compatible with Philips block decoders; (10)Sub-CPU interface can be parallel or fast I2C-bus; (11)On-chip clock multiplier.
Diagrams
