CX28344 Conexant, CX28344 Datasheet - Page 174

• Manufacturer Part Number: CX28344
• Description: (CX2834x) Dual / Triple / Quad / Hex / Octal - Enhanced DS3 / E3 Framer
• Manufacturer: Conexant

Electrical and Mechanical Specifications
4.5
4.5.1
Figure 4-12. Mechanical Specification for 144-pin ETQFP
4-14
D
D1
D2
Mechanical Specifications
Package Types
A
e
A1
A2
The package used is an ETQFP with 144 pins. The double, triple, and quad framer
versions use the same package with the same number of pins.
PIN 1
REF
DETAIL A
Mindspeed Technologies™
D1
D2
D1
D
b
L1
L
c
DETAIL A
A
A1
A2
D
D1
D2
L
L1
e
b
c
Coplanarity
Ref: 144-PIN TQFP (GP00-D252)**
* Metric values (millimeters) should be used for
** The package has a downset paddle to provide
PCB layout. English values (inches) are
converted from metric values and may include
round-off errors.
good RF ground contact and needs to be
soldered to the ground plane on the PCB.
Dim.
21.75
Min.
0.05
0.17
0.11
0.5
Millimeters
0.50 BSC
0.08 MAX
20.0 REF
17.5 REF
1.6 MAX
1.4 REF
1.0 REF
22.25
Max.
0.15
0.75
0.27
0.17
D1
0.0020
0.8563
0.0197
0.0067
0.0043
Min.
CX28342/3/4/6/8 Data Sheet
0.0630 MAX
0.0197 BSC
0.0031 MAX
0.0551 REF
0.7874 REF
0.6890 REF
0.0394 REF
Inches*
0.0059
0.8760
0.0295
0.0106
0.0067
Max.
28348-DSH-001-B
100542_033