Texas Instruments TP3070V-G/NOPB

COMBO II Programmable PCM CODEC/Filter 28-PLCC

Audio Codec; Supply Voltage Min:4.75V; Supply Voltage Max:5.25V; Termination Type:SMD; Package/Case:28-PLCC; No. of Pins:28; Leaded Process Compatible:Yes; Peak Reflow Compatible (260 C):Yes; IC Function:Audio Codec ;RoHS Compliant: Yes

IC, AUDIO CODEC, 28PLCC; Audio CODEC Type:PCM / Filter; No. of ADCs:1; No. of DACs:1; No. of Input Channels:1; No. of Output Channels:1; ADC / DAC Resolution:8bit; Sampling Rate:8kSPS; Interface Type:Serial; Supply Voltage Range:4.75V to 5.25V; Operating Temperature Range:-40°C to +85°C; Audio IC Case Style:PLCC; No. of Pins:28; SVHC:No SVHC (19-Dec-2011); Base Number:3070; Interface:Serial; Interface Type:Serial, PCM; Package / Case:PLCC; Supply Voltage Max:5.25V; Supply Voltage Min:4.75V; Termination Type:SMD

The TP3070 and TP3071 are second-generation combinedPCM CODEC and Filter devices optimized for digital switching applications on subscriber line and trunk cards. Using advanced switched capacitor techniques, COMBO II combines transmit bandpass and receive low pass channel filters with a companding PCM encoder and decoder. The devices are A-law and u-law selectable and employ a conventional serial PCM interface capable of being clocked up to 4.096 MHz. A number of programmable functions may becontrolled via a serial control port. Channel gains are programmable over a 25.4 dB range in each direction, and a programmable filter is included to enable Hybrid Balancing to be adjusted to suit a wide range of loop impedance conditions. Both transformer and active SLIC interface circuits with real or complex termination im-pedances can be balanced by this filter, with cancellation in excess of 30 dB being readily achievable when measured across the passband against standard test termination networks. To enable COMBO II to interface to the SLIC control leads, anumber of programmable latches are included; each may be configured as either an input or an output. The TP3070 pro-vides 6 latches and the TP3071 5 latches.