BU9480F Datasheet, PDF (1/5 Pages) Rohm – 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 converter designed for audio applications, and has an internal 2 × oversam-
pling 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.
•^{Block diagram}
4) 2-channel common phase output.
5) Internal 2 × oversampling interpolator.
6) 8 - pin plastic package.
7) Supports 4fs. (200kHz operation)
LRCLK 5
BCLK 7
SDATA 6
SHIFT REGISTER / LATCH
X2 OVER
SAMPLING
DAC
X2 OVER
SAMPLING
DAC
8 _VCC
•^{Pin descriptions}
Pin No. Pin name
1
ROUT
2
REF
3
GND
4
LOUT
5
LRCK
6
SDAT
7
BCLK
8
VCC
4
OUTL
2
REF
1
OUTR
3 _GND
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
Logic input
Logic input
—
Voltage
1 / 2VCC
1 / 2VCC
—
1 / 2VCC
—
—
—
—
1