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U4488B |
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| Part Number | U4488B |
| Manufacturer | TEMIC Semiconductors |
| Description | The U4488B is an integrated bipolar circuit for full multistandard sound IF signal processing in TV/VTR and Multimedia applications. It supplies AM signals as well as FM/NICAM sound IF signals and thu... |
| Features |
D 5-V supply voltage; low power consumption D Gain-controlled 3-stage wideband IF amplifier D Active carrier generation by FPLL principle
(frequency-phase-locked-loop) for true quadrature demodulation
D Complete alignment-free AM demodulator D Switchable amplitude detector for gain control, which
operates as a peak detector for FM sound and as a mean level detector for AM sound
D Two symmetrical IF inputs
Block Diagram
IF1/IF2 S3 11 1 2 IF-Amp 12 Intercarrier (FM) 4 14 REF FPLL VS Loop filter 5 0° 90° VCO 9 8 VCO
IF FM
IF AM
15 16
IF-Switch
Mean
3 AGC Peak level 13 IF AGC Mean/peak 7 ... |
| Document |
 U4488B Data Sheet
PDF 272.09KB |
| Distributor | Stock | Price | Buy |
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