Le79228
Data Sheet
With code words representing any sine wave signal in the range 3.4 kHz to 4.0 kHz at a level of 0 dBm0 applied to the digital
input, the level of the signals at the analog output are below the limits in Figure 11. The amplitude of the spurious out-of-band
signals between 3400 Hz and 4600 Hz is given by the formula:
π (
f
–
4000
)
-
A
= –
14
–
14 sin
----------------------------
dBm0
1200
Figure 11. Spurious Out-of-Band Signals
0
-10
-20
-28 dBm
-32 dB
Level (dB)
-30
-40
-50
3.4
4.0
4.6
Frequency (kHz)
SWITCHING CHARACTERISTICS
Figure 12. Switching Characteristics
2.4 V
2.0 V
TEST
POINTS
0.8 V
0.4 V
0.8 V
2.0 V
VCC = 3.3 V +5%, AGND = DGND = 0 V.
20
Zarlink Semiconductor Inc.
ZARLINK [ ZARLINK SEMICONDUCTOR INC ]
