TP3040A
TP3040A is PCM Monolithic Filter manufactured by National Semiconductor.
- Part of the TP3040 comparator family.
- Part of the TP3040 comparator family.
Description
The TP3040 TP3040A filter is a monolithic circuit containing both transmit and receive filters specifically designed for PCM CODEC filtering applications in 8 k Hz sampled systems
The filter is manufactured using micro CMOS technology and switched capacitor integrators are used to simulate classical LC ladder filters which exhibit low ponent sensitivity
TRANSMIT FILTER STAGE
The transmit filter is a fifth order elliptic low pass filter in series with a fourth order Chebyshev high pass filter It provides a flat response in the passband and rejection of signals below 200 Hz and above 3 4 k Hz
RECEIVE FILTER STAGE
The receive filter is a fifth order elliptic low pass filter designed to reconstruct the voice signal from the decoded demultiplexed signal which as a result of the sampling process is a stair-step signal having the inherent sin x x frequency response The receive...
