TP3069 Datasheet | National Semiconductor

Description The TP3069 (A-law) is a monolithic PCM CODEC Filter utilizing the A D and D A conversion architecture shown in Figure 1 and a serial PCM interface The device is fabricated using National’s advanced double-poly CMOS process (micro CMOS) Similar to the TP305X family this device features 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 Note See also AN-370 ‘‘Techniques for Designing with CODEC Filter BO Circuits ’’ Features Y Y Y Y Y Y Y plete CODEC and filtering system including Transmit high-pass and low-pass filtering Receive low-pass filter with sin x x correction Active RC noise filters A-law patible COder and DECoder Internal precision voltage reference Serial I O interface Internal auto-zero circuitry Receive push-pull power amplifiers Designed for D3 D4 and CCITT applications g 5V operation Low operating power typically 70 m W Power-down standby mode typically 3 m W Automatic power-down TTL or CMOS patible digital interfaces Maximizes line interface card circuit density BO and TRI-STATE are registered trademarks of National Semiconductor Corp Block Diagram TL H 10578 - 1 FIGURE 1 C1995 National Semiconductor Corporation TL H 10578 RRD-B30M115 Printed in U S A Connection Diagrams Dual-In-Line Package Plastic Chip Carrier TL H 10578 - 3 Top View Order Number TP3069J See NS Package Number J20A Order Number TP3069N See NS Package Number N20A TL H 10578- 2 Order Number TP3069V See NS Package Number V20A Order Number TP3069WM See NS Package Number M20B Top View Pin Description Symbol VPO a GNDA VPOb VPI VFRO VCC FSR Function The non-inverted output of the receive power amplifier Analog ground All signals are referenced to this pin The inverted output of the receive power amplifier Inverting input to the...