16-bit stereo D / A converter for audio applications
Multimedia ICs
16-bit stereo D / A converter for audio applications
BU9480F
The BU9480F is a 16-bit stereo D / A conver...
Description
Multimedia ICs
16-bit stereo D / A converter for audio applications
BU9480F
The BU9480F is a 16-bit stereo D / A converter designed for audio applications, and has an internal 2 × oversampling circuit. Applications 16-bit stereo D / A converter for audio applications
Features 1) 3.0 to 5.5V operating voltage. 2) Low current consumption because of the CMOS process. 3) Resistor strings method used.
4) 2-channel common phase output. 5) Internal 2 × oversampling interpolator. 6) 8 - pin plastic package. 7) Supports 4fs. (200kHz operation)
Block diagram
LRCLK 5 BCLK 7 X2 OVER SAMPLING SDATA 6 DAC DAC SHIFT REGISTER / LATCH 8 X2 OVER SAMPLING V CC
3 GND 4 OUTL 2 REF 1 OUTR
Pin descriptions
Pin No. 1 2 3 4 5 Pin name ROUT REF GND LOUT LRCK Function Right channel analog signal output Connects the DA ref. voltage pin and ground Ground Left channel analog signal output The signal that distinguishes between left and right channels for serial data (left channe = high level, right channel = low level). Serial data input Input with 2' compliment, MSB first. Serial data shift clock input Vcc I/O Low-impedance output High-impedance input — Low-impedance output Logic input Voltage 1 / 2VCC 1 / 2VCC — 1 / 2VCC —
6 7 8
SDAT BCLK VCC
Logic input Logic input —
— — —
1
Multimedia ICs
BU9480F
Absolute maximum ratings (Ta = 25°C)
Parameter Applied voltage Power dissipation Operating temperature Storage temperature Input voltage Symbol VDDMax. Pd Topr Tstg Topt Limits 7.0 450∗ – ...
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