cx28348 Mindspeed Technologies, cx28348 Datasheet - Page 162

• Manufacturer Part Number: cx28348
• Description: Dual/triple/quad/hex/octal-enhanced Ds3/e3 Framer
• Manufacturer: Mindspeed Technologies

Electrical and Mechanical Specifications
4.1.1.2
Figure 4-1. Power Ramp Sequence of VDDx and VDDOx
4.1.2
4.1.2.1
Table 4-3. DC Characteristics
4-2
I
I
I
I
I
I
I
I
dd
dd
dd
dd
dd
dd
dd
dd
Symbol
3.3
2.5
1.7
1.0
Volts
8-channel core supply current
8-channel I/O supply current
6-channel core supply current
6-channel I/O supply current
4-channel core supply current
4-channel I/O supply current
3-channel core supply current
3-channel I/O supply current
Electrical Characteristics
Power Ramp Sequence of VDDx and VDDOx
There is a recommended power ramp sequence for VDDOx (3.3 V I/O) and VDDx
(2.5 V core) supplies. A minimum time of 100 ns is required from the VDDOx
reaching 1.7 V (or greater) until the VDDx supply is allowed to exceed 1.0 V. See
Figure 4-1
DC Characteristics
All inputs and bidirectional signals have input thresholds compatible with TTL drive
levels. All outputs are CMOS drive levels and can be used with CMOS or TTL logic.
Parameter
below for more details.
Mindspeed Technologies™
t
100 ns
Minimum
[VDDx]
[VDDOx]
—
—
—
—
—
—
—
—
Typical
—
—
—
—
—
—
—
—
CX28342/3/4/6/8 Data Sheet
Maximum
336
144
291
126
180
145
85
65
28348-DSH-001-B
101317_001
Units
mA
mA
mA
mA
mA
mA
mA
mA