SLWS009A - SEPTEMBER 1994 - REVISED DECEMBER 1995
The TCM8010-50 is a complete advanced mobile phone service (AMPS)/total access communications system (TACS) audio processor built using the Texas Instruments Advanced LinBiCMOSTM technology and packaged in a 44-pin mini QFP (FR) package. This device provides a highly integrated solution for analog-signal processing in mobile and hand-held FM cellular telephones while conserving circuit board area and vertical height within the finished product. All necessary voice and data filters, and all appropriate antialiasing and smoothing filters are incorporated in the device. Continuous-time filters are used for the anti-aliasing and smoothing functions and switched-capacitor techniques are used only where appropriate. Ancillary functions such as microphone preamplifiers, differential loudspeaker outputs, CCITT-compatible compander, dual tone multi-frequency (DTMF) generator, three 8-bit digital-to-analog converters (DACs), and an 8-bit analog-to-digital converter (ADC) with input multiplexer are also included in the device. A simple 3-wire serial interface provides digital control of signal-path switching, muting and gain adjustment, the 8-bit DACs, transmit (TX) limit level, DTMF code and amplitude, ADC multiplexer input select, and allows the ADC output to be read.
In active mode, the TCM8010-50 consumes less than 12 mA of supply current. When the DTMF generator or the ADC are not in operation, the power consumption is even less. The device can be put into a standby mode in which only the receive (RX) data path is active, reducing the supply current to a typical value of 2 mA or less.
Either the integrated-clock oscillator or an external clock signal (with several frequency options) can be used.
View more information about generic part numbers:TCM8010-50
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