LA75505M - Adjustment Free VIF/SIF Signal Processing IC
Ordering number : ENN 6930 Monolithic Linear IC LA75505M Adjustment Free VIF/SIF Signal Processing IC for TV/VCR Preliminary Overview The LA75505M is a VIF/SIF signal processing IC for NTSC TV/VCR.
It supports the 45.75 MHz and 58.75 MHz as the IF frequencies.
On-chip sound carrier trap and sound carrier BPF circuits make it ideal for compact and light-weight tuner applications.
To adjust the VCO circuit, AFT circuit, and sound filter, 4-MHz external crystal or 4MHz external signal is need
LA75505M Features
* Internal VCO adjustment free circuit eliminating need for VCO coil adjustments.
* Considerably reduces the number of required peripheral parts by providing on-chip sound carrier BPF and sound carrier trap circuits.
* Use of digital AFT eliminates problem of AFT tolerance.
