Datasheet

1−2
1.1 Features
• High-Performance Stereo DAC
− 100-dB SNR multibit sigma-delta ADC (A-weighted at 48 kHz)
− 1.42 V – 3.6 V digital supply: compatible with TI C54x DSP core voltages
− 2.7 V – 3.6 V analog supply: compatible TI C54x DSP buffer voltages
− 8-kHz – 96-kHz sampling-frequency support
• Software control via TI McBSP-compatible multiprotocol serial port
− 2-wire-compatible and SPI-compatible serial port protocols
− Glueless interface to TI McBSPs
• Audio data input/output via TI McBSP compatible programmable audio interface
−I
2
S-compatible interface
− Standard I
2
S, MSB, or LSB justified data transfers
− 16/20/24/32-bit word lengths
− Audio master/slave timing capability optimized for TI DSPs (250/272 f
s
)
− Industry-standard master/slave support also provided (256/384 f
s
)
− Glueless interface to TI McBSPs
• Stereo line inputs
• Stereo line outputs
− Analog stereo mixer for DAC and analog bypass path
• Analog volume control with mute
• Highly efficient linear headphone amplifier
− 30 mW into 32 Ω from a 3.3-V analog supply voltage
• Flexible power management under total software control
− 18-mW power consumption during playback mode
− Standby power consumption <150 µW
− Power-down power consumption <15 µW
• Industry’s smallest package: 32-Pin TI proprietary MicroStar Junior
−25 mm
2
total board area
− 28-Pin TSSOP available (62 mm
2
total board area)
− 28-Pin QFN available (25 mm
2
total board area)
• Ideally suitable for portable solid-state audio players and recorders