Philips Semiconductors
Dual top-performance bitstream DAC
Product specification
TDA1547
Notes to the characteristics
1. The substrate voltage must be lower than or to equal than the lowest supply voltage.
2. Output level tracks linearly with both the clock frequency and the reference voltage (Vref L or Vref R).
3. Device measured in differential mode with external components as shown in Fig.5.
4. Measured with a one-bit data signal generated by the SAA7350 from an 8 fs (352.8 kHz), 20-bit, 1 kHz digital
sinewave. Measured over a 20 Hz to 20 kHz bandwidth.
5. Measured with a one-bit data signal generated by the SAA7350 from an 8 fs (352.8 kHz), 20-bit, 20 Hz to 20 kHz
digital sinewave. Measured over a 20 Hz to 20 kHz bandwidth.
6. Power supply rejection ratio measured with fripple = 1 kHz and vripple = 100 mV.
7. The specified signal-to-noise ratio includes noise introduced by the application components as shown in Fig.5.
TIMING
handbook, full pagewidth
tr
CLK
t CLK H
VIH
tf
t CLK L
VDDD – 1.0 V
1.0 V VIL
VIH
DATA INPUT
CHANNEL L,
CHANNEL R
V IL
t SU
t HD
DATA STABLE
V IL
Fig.3 Timing waveform.
VDDD – 1.0 V
1.0 V
MCD295
September 1991
11