UDA1352TS: 48 kHz IEC 60958 audio DAC ARCHIVED

1.1 General

• 2.7 to 3.6 V power supply
• Integrated digital filter and Digital-to-Analog Converter (DAC)
• 256f_s system clock output
• 20-bit data path in interpolator
• High performance
• No analog post filtering required for DAC
• Supporting sampling frequencies from 28 up to 55 kHz.

1.2 Control

• Controlled either by means of static pins, I²C-bus or L3-bus microcontroller interface.

1.3 IEC 60958 input

• On-chip amplifier for converting IEC 60958 input to CMOS levels
• Lock indication signal available on pin LOCK
• Information of the Pulse Code Modulation (PCM) status bit and the non-PCM data detection is available on pin PCMDET
• For left and right 40 key channel-status bits available via L3-bus or I²C-bus interface.

1.4 Digital sound processing and DAC

• Automatic de-emphasis when using IEC 60958 input with 32.0, 44.1 and 48.0 kHz audio sample frequencies
• Soft mute by means of a cosine roll-off circuit selectable via pin MUTE, L3-bus or I²C-bus interface
• Left and right independent dB linear volume control with 0.25 dB steps from 0 to -50 dB, 1 dB steps to -60, -66 and -dB
• Bass boost and treble control in L3-bus or I²C-bus mode
• Interpolating filter (f_s to 64f_s) by means of a cascade of a recursive filter and a FIR filter
• Fifth-order noise shaper (operating at 64f_s) generates the bitstream for the DAC
• Filter Stream DAC (FSDAC).

• Digital audio systems.