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TP30571, TP3057-1, TP3057A

Table of contents:
Info of TP30571
Info of TP3057-1
Info of TP3057A

TP30571, TP3057-1, TP3057A Selling Leads, Datasheet

MFG:4 Package Cooled:NS D/C:DIP-14

TP30571, TP3057-1, TP3057A Datasheet download

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Part Number: TP30571

MFG: 4

Package Cooled: NS

D/C: DIP-14

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TP3057A General Description

The TP3054A, TP3057A, TP13054A, and TP13057A are comprised of a single-chip PCM codec (pulse code-modulated encoder and decoder) and PCM line filter. These devices provide all the functions required to interface a full-duplex (2-wire) voice telephone circuit with a TDM (time-division-multiplexed) system. These devices are pin-for-pin compatible with the National Semiconductor TP3054A and TP3057A, respectively. Primary applications include:
• Line interface for digital transmission and switching of T1 carrier, PABX, and central office telephone systems
• Subscriber line concentrators
• Digital-encryption systems
• Digital voice-band data-storage systems
• Digital signal processing

These devices are designed to perform the transmit encoding (A/D conversion) and receive decoding (D/A conversion) as well as the transmit and receive filtering functions in a PCM system. They are intended to be used at the analog termination of a PCM line or trunk. The devices require two transmit and receive master clocks that may be asynchronous (1.536 MHz, 1.544 MHz, or 2.048 MHz), transmit and receive data clocks t at are synchronous with the master clock (but can vary from 64 kHz to 2.048 MHz), and transmit and receive frame-sync pulses. The TP3054A, TP3057A, TP13054A, and TP13057A provide the band-pass filtering of the analog signals prior to encoding and after decoding of voice and call progress tones. The TP3057A and TP13057A contain patented circuitry to achieve low transmit channel idle noise and are not recommended for applications in which the composite signals on the transmit side are below 55 dBm0.

The TP3054A and TP3057A are characterized for operation from 0°C to 70°C. The TP13054A and TP13057A are characterized for operation from 40°C to 85°C.

TP3057A Maximum Ratings

Supply voltage, V_CC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Supply voltage, V_BB (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Voltage range at any analog input or output . . . . . . . . . . . . . . . . . . . . . . . .. .. . . . V_CC +0.3 V to V_BB 0.3 V
Voltage range at any digital input or output . . . . . . . . . . . . . . . . . . . . . . . . V_CC +0.3 V to ANLG GND 0.3 V
Continuous total dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Operating free-air temperature range: TP3054A, TP3057A . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
TP13054A, TP13057A . . . . . . . . . . . . . . . . . . . . . . . . . . 40°C to 85°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: DW or N package . . . . . . . . . . . . . . 260°C
† Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltages are with respect to GND.

TP3057A Features

`Complete PCM Codec and Filtering Systems Include:
Transmit High-Pass and Low-Pass Filtering
Receive Low-Pass Filter With (sin x)/x Correction
Active RC Noise Filters
-Law or A-Law Compatible Coder and Decoder
Internal Precision Voltage Reference
Serial I/O Interface
Internal Autozero Circuitry
`-Law . . . TP3054A and TP13054A
`A-Law . . . TP3057A and TP13057A
`±5-V Operation
`Low Operating Power . . . 50 mW Typ
`Power-Down Standby Mode . . . 3 mW Typ
`Automatic Power Down
`TTL- or CMOS-Compatible Digital Interface
`Maximizes Line Interface Card Circuit Density
`Improved Versions of National Semiconductor TP3054, TP3057, TP3054-X, TP3057-X

TP3057A Connection Diagram

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