SLWS093C

• C54xx software driver available
• 16-bit oversampling sigma-delta A/D converter
• 16-bit oversampling sigma-delta D/A converter
• Maximum output conversion rate:
22 ksps with on-chip FIR filter
88 ksps with FIR bypassed
• Voiceband bandwidth in FIR-bypassed mode and final sampling rate at 8 ksps
90-dB SNR/ADC and 87-dB SNR/DAC with DSP's FIR (FIR bypassed at 88 ksps/5 V)
87-dB SNR/ADC and 85-dB SNR/DAC with DSP's FIR (FIR bypassed at 88 ksps/3.3 V)
• On-chip FIR produced 84-dB SNR for ADC and 85-dB SNR for DAC over 11-kHz BW
• Built-in functions including PGA, antialiasing analog filter, and operational amplifiers for general-purpose interface (such as MIC interface and hybrid interface)
• Glueless serial port interface to DSPs (TI TMS320Cxx, SPI, or standard DSPs)
• Automatic cascading detection (ACD) makes cascade programming simple and allows up to 8 devices to
be connected in cascade.
• On-fly reconfiguration modes include secondary-communication mode and direct-configuration mode (host
interface).
• Continuous data-transfer mode for use with autobuffering (ABU) to reduce DSP interrupt service overhead
• Event-monitor mode provides external-event control, such as RING/OFF-HOOK detection
• Programmable ADC and DAC conversion rate
• Programmable input and output gain control
• Separate software control for ADC and DAC power-down
• Analog (3 V to 5.5 V) supply operation
• Digital (3 V to 5.5 V) supply operation
• Power dissipation (PD) of 39 mWrms typical for 8-ksps at 3.3 V
• Hardware power-down mode to 0.5 mW
• Internal and external reference voltage (Vref)
• Differential and single-ended analog input/output
• 2s-complement data format
• Test mode, which includes digital loopback and analog loopback
• 600-ohm output driver
• VHDL code for serial interface available

Supply voltage range, DV_DD, AV_DD (see Note 1) . . . . . . . . . . . . . . . . . . . . . . 0.3 V to 7 V
Output voltage range, all digital output signals . . . . . . . . . . . . . . . . 0.3V to DV_DD+0.3 V
Input voltage range, all digital input signals . . . . . . . . . . . . . . . . . . 0.3V to DV_DD +0.3 V
Case temperature for 10 seconds: package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
Operating free-air temperature range, T_A . . . . . . . . . . . . . . . . . . . . . . . .. . . 40 to 85
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . .. 65 to 150

† 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 voltage values are with respect to V_SS.