4
4.0 Parametric Information
4.1 DC Electrical Parameters
DC electrical parameters are defined in Tables 4-1 through 4-3. AC electrical
parameters are defined in Table 4-4. Figures 4-1 through 4-10 provide timing
diagrams.
Table 4-1. Recommended Operating Condition
Parameter
Symbol
VAA, VDD
Min
3.15
Typical
3.30
Max
3.45
Units
Power Supply
V
V
Serial Input Supply (CX25870/871’s serial bus
always operates at 3.3 V.)
VDD_SI
3.15
3.30
1.80
1.50
1.30
1.10
3.30
3.45
Low Voltage Supply (For interface to 1.8 V
master)
VDDL, VDD_CO
VDDL, VDD_CO
VDDL, VDD_CO
VDDL, VDD_CO
1.71
1.89
V
V
V
V
V
Low Voltage Supply (For interface to 1.5 V
master)
1.425
1.235
1.045
1.575
1.365
1.155
Low Voltage Supply (For interface to 1.3 V
master)
Low Voltage Supply (For interface to 1.1 V
master)
Voltage Supply (For interface to 3.3 V master)
Ambient Operating Temperature
VDDL, VDD_CO
TA
3.15
0
3.45
70
—
°C
Ω
Ω
Total DAC Terminated Load
Nominal RSET
RTERM
RSET
—
37.5
75.0
—
74.25
75.75
100381B
Conexant
4-1
CONEXANT [ CONEXANT SYSTEMS, INC ]
