TP3064, TP3067 Enhanced Serial Interface CMOS CODEC/Filter COMBO Literature Number: SNAS570 TP3064, TP3067
��Enhanced’’ Serial Interface
CMOS CODEC/Filter COMBOÉ
General Description Features The TP3064 (m-law) and TP3067 (A-law) are monolithic
PCM CODEC/Filters utilizing the A/D and D/A conversion
architecture shown in Figure 1 , and a serial PCM interface.
The devices are fabricated using National’s advanced double-poly CMOS process (microCMOS).
Similar to the TP305X family, these devices feature an additional Receive Power Amplifier to provide push-pull balanced output drive capability. The receive gain can be adjusted by means of two external resistors for an output level
of up to g 6.6V across a balanced 600X load.
Also included is an Analog Loopback switch and a TSX output.
See also AN-370, ��Techniques for Designing with CODEC/
Filter COMBO Circuits.’’ Y Y
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Y COMBOÉ and TRI-STATEÉ are registered trademarks of National Semiconductor Corporation. Y Complete CODEC and filtering system including:
Гђ Transmit high-pass and low-pass filtering
Гђ Receive low-pass filter with sin x/x correction
Гђ Active RC noise filters
Гђ m-law or A-law compatible COder and DECoder …
