cx28250 Mindspeed Technologies, cx28250 Datasheet - Page 90

• Manufacturer Part Number: cx28250
• Description: Cx28250 Atm Physical Interface Phy Devices
• Manufacturer: Mindspeed Technologies

3.0 Applications
3.2 Board Layout
Figure 3-2. Schematic Detail of Analog Components
3-4
Note:
For clarity, not all pins are shown.
C51 and R36 are not populated. Used for device verification, not needed in production.
All capacitors are 10% ceramic and all resistors are 1%.
D7, G11, H12, M13, N14
C7, C10, D1, D3, D8
D10, D13, J2, J3, K11
A8, B6, C11, D4, D12
E1, E2, G1, G4, H3
J13, L1, L8, M11, N6
N7, N10, P6, P9
L5, M5, M7, M9, N9
ANALOG POWER PINS
DIGITAL POWER PINS
NO CONNECT PINS
CX28250
GROUND PINS
This point should be routed to the analog
ground pins: N6, N7, and P6 of the
CX28250.
GROUND NOTE
Keep these components as
close together as possible
and locate them next to
the CX28250.
These traces should
be equal in length
on your board.
R49
604
C28
0.015 µF
Mindspeed Technologies
C42
270 pF
C48
1 µF
P11 LRXPFP
R36
C51
L6
N6
N7
P6
M6 LTXPFP
M6
LTXPFN
VSSA
VSSA
VSSA
Keep these components as close
together as possible and locate
them next to the CX28250.
R48
68.1
H+5V
™
C27
C17
2.2 µF
470 pF
1 VIN
1
3 EN
3
VREG
SOT23-5
ATM Physical Interface (PHY) Devices
CX28250-23
GND
VR2
2
VOUT
BYP
LRXPFN
VDDA
VDDA
VDDA
VDDA
VDDA
5
5
4
4
C80
L10
470 pF
L5
M5
M7
M9
N9
28250-DSH-002-C
C89
2.2 µF
ANALOG+3V
CX28250
C54
100 pF
500035_052