SAA7707H Datasheet | NXP Semiconductors

INTEGRATED CIRCUITS DATA SHEET SAA7707H Car radio Digital Signal Processor (CDSP) Preliminary specification Supersedes data of 1996 May 22 File under Integrated Circuits, IC01 1997 May 30 Philips Semiconductors Preliminary specification Car radio Digital Signal Processor (CDSP) CONTENTS 1 1.1 1.2 2 3 4 5 6 7 8 8.1 8.2 8.3 8.4 8.5 8.6 8.7 8.8 8.9 8.10 Features Hardware Software APPLICATIONS GENERAL DESCRIPTION QUICK REFERENCE DATA ORDERING INFORMATION BLOCK DIAGRAM PINNING FUNCTIONAL DESCRIPTION Signal path for level information Level ADC switch mode integrator (pin CINT) Internal ground reference for the level ADC (pin VDACNL) mon mode reference voltage for RDS ADC, ADC level and buffers (pin Vref RDS) Signal path for audio/MPX and stereo decoder Mono/stereo switching The automatic lock system Input sensitivity for FM mon mode reference voltage for MPX ADC and buffers (pin Vref MPX) Supply voltages for the switch capacitor DACs of the FMMPX ADC and FMRDS ADC (pins VDACNM and VDACPM) Noise level TAPE/AUX de-multiplex Signal-to-noise considerations Channel separation correction Input selection switches Analog inputs supply Digitally controlled sampling clock (DCS) Survey of the DCS clock settings in different modes Synchronization with the core Interference absorption circuit IAC testing ANALOG OUTPUTS Digital-to-Analog Converters Upsample filter Volume control Power-on mute Power-off plop suppression Internal reference buffer amplifier of the DAC (pin Vref) Internal DAC current reference Analog outputs supply 10.5 10.6 10.7 10.8 10.9 10.10 10.11 10.12 11 12 13 14 15 15.1 15.2 15.3 15.4 15.5 15.6 16 17 18 19 19.1 19.2 19.3 19.4 20 21 22 9.9 9.10 9.11 10 10.1 10.2 10.3 10.4 Clock circuit and oscillator Crystal oscillator supply External control pins I2S-BUS DESCRIPTION I2C-bus control (SCL and SDA pins) I2S-bus description munication with external digital audio sources (DCC + CD-WS/CL/Data pins) munication with external processors and other...