TP3064B Datasheet | Texas Instruments

description The TP3064B, TP3067B, TP13064B, and TP13067B each prise a single-chip pulsecode-modulation encoder and decoder (PCM codec), and PCM line filter. They also provide band-pass filtering of the analog signals prior to the encoding, and low-pass filtering after the decoding of voice signals and call-progress tones. All the functions required to interface a full-duplex (2-wire) voice telephone circuit with a time-division-multiplexed (TDM) system are included on-chip. These devices are pin-for-pin patible with the National Semiconductor TP3064 and TP3067. Primary applications include: - Line interface for digital transmission and switching of T1 carrier, PABX (private automated branch exchange), and central office telephone systems - Subscriber line concentrators - Digital-encryption systems - Digital voice-band data-storage systems - Digital signal processing DW OR N PACKAGE (TOP VIEW) VPO+ 1 ANLG GND 2 - 3 VPI 4 VFRO 5 VCC 6 FSR 7 DR 8 BCLKR/CLKSEL 9 MCLKR/PDN 10 20 VBB 19 VFXI+ 18 VFXI - 17 GSX 16 ANLG LOOP 15 TSX 14 FSX 13 DX 12 BCLKX 11 MCLKX 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, and are intended to be used at the analog termination of a PCM line or trunk. They require a transmit master clock and a receive master clock that may be asynchronous (1.536 MHz, 1.544 MHz, or 2.048 MHz), transmit and receive data clocks that are synchronous with the master clock (but can vary from 64 k Hz to 2.048 MHz), and transmit and receive frame-sync pulses. The TP3064B and TP13064B contain patented circuitry to achieve low transmit channel idle noise and are not remended for applications in which the posite signals on the transmit side are below - 55 d Bm0. These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to...