TDA4445A demodulator equivalent, quasi parallel sound processing with quadrature intercarrier demodulator.
D D D D D D
Very high input sensitivity Excellent signal to noise ratio Fast averaged AGC IF amplifier can be switched off for VTR mode Output signal stabilized against V.
(B/G and L) D Alignment free AM demodulator D Low AM distortion
Case: DIP16
Figure 1. Block diagram TDA4445A
Figure 2.
Pin 1
–16 3 8
–9 11 12 13 2, 4, 7, 10, 14, 15 Symbol Function IF input If AGC time constant Tuned circuit Supply voltage Sound-IF-output Ground not connected
TELEFUNKEN Semiconductors
Circuit Description
This circuit i.
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