SAA7284 Datasheet | NXP Semiconductors

INTEGRATED CIRCUITS DATA SHEET SAA7284 Terrestrial digital sound decoder for conventional intercarrier PLL-IF systems Preliminary specification File under Integrated Circuits, IC02 1996 Oct 24 Philips Semiconductors Preliminary specification Terrestrial digital sound decoder for conventional intercarrier PLL-IF systems Features - Single-chip solution including FM and vision filters, analog demodulator and audio switching - Dual standard with automatic selection between PAL system I and BGH - Suitable for conventional intercarrier PLL-IF (single SAW) TV/VCR systems - Single low-radiation crystal oscillator for improved EMC - Stereo bitstream audio DACs - Programmable attenuator for matching levels of NICAM and FM audio sources at the output of the device - Full EBU specification NICAM 728 demodulation and decoding - Digital Audio Interface conforming with EBU/IEC 958 - Automatic mute function which switches from NICAM to FM sound when NICAM fails - patible with either single-ended or differential DQPSK input signals - Microputer controlled via specification). APPLICATIONS - Television receivers - Video cassette recorders. GENERAL DESCRIPTION Philips Semiconductors have pushed the boundaries of Stereo Sound further with this addition to the successful Terrestrial Digital Sound Decoder family. The SAA7284 device is an application specific version of the existing SAA7283, with guaranteed improved specification on selected parameters, enabling parable RF performance in conventional intercarrier PLL-IF systems, to that of the SAA7283 in QSS systems. ORDERING INFORMATION TYPE NUMBER SAA7284ZP SAA7284GP PACKAGE NAME SDIP52 QFP64 DESCRIPTION plastic shrink dual in-line package; 52 leads (600 mil) plastic quad flat package; 64 leads (lead length 1.95 mm); body 14 × 20 × 2.8 mm I2C-bus (up to 400 k Hz The SAA7284 takes, as input, a second IF (intercarrier) Terrestrial TV PAL signal, and performs all the Differential Quadrature Phase Shift Keying (DQPSK)...