TP11368 Datasheet | National Semiconductor

Description The TP11368 is an octal (8) channel Adaptive Differential Pulse Code Modulation (ADPCM) transcoder, fully patible to ITU G.726 remendation in 40 kbps, 32 kbps, 24 kbps, 16 kbps and ANSI 32 kbps modes. The TP11368 ADPCM processor can operate on up to 16 independent channels in an 8 k Hz frame. Each channel is individually configured, supporting both full and half duplex operation. All input/output transfers occur on an interrupt basis using serial, double buffered data registers. Together with National’s TP3054/57 BO ® or TP3070/71 BO II devices, the TP11368 forms plete ADPCM channels with Codec/ filtering. Features n CCITT G.726 patible at 40, 32, 24, 16 kbps n ANSI T1.301 patible at 32 kbps n 16-channel half-duplex (encode or decode) or 8-channel full-duplex operation in 8 k Hz frame n Each channel individually configurable n Selectable µ-law or A-law PCM coding n Asynchronous 16 MHz master clock operation n TTL and CMOS patible inputs and outputs n 28-pin PLCC or 24-pin DIP packages n Power consumption of typ. 6 m W at +5V per full-duplex channel n On-Chip Power-On-Reset n - 40˚C to +85˚C operating temperature range n Single 5V supply Block Diagram DS012902-1 FIGURE 1. Block Diagram TRI-STATE ® and BO ® are registered trademarks of National Semiconductor Corporation. © 1997 National Semiconductor Corporation DS012902 .national. Connection Diagrams Plastic Chip Carrier Plastic Dual-In-Line DS012902-2 DS012902-3 Top View Order Number TP11368V See NS Package Number V28A Top View Order Number TP11368N See NS Package Number N24A Pin Descriptions TSI Transmit PCM serial data input. TSI is an 8-bit PCM data stream and is shifted into an 8-bit serial-to-parallel register on the falling edges of PSCK while CE and TRB are high. The last 8 bits of TSI are latched and transferred to the core for processing at the falling edge of CE. TSO Transmit ADPCM TRI-STATE ® serial data output. TSO is a data bit stream of 4- to 5-bit length, and is shifted out with...