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W320-04H

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
W320-04
.....................Document #: 38-07010 Rev. *C Page 13 of 16
Figure 3. CPU Power After Clock Power
GND VRM 5/12V
PWRGD#
VID [3:0]
BSEL [1:0]
PWRGD# FROM
VRM
PWRGD# FROM
NPN
VCC CPU CORE
PWRGD#
VCC W320 CLOCK
0.2 – 0.3 ms
delay
Wait for
PWRGD#
Sample
BSELS
CLOCK STATE
State 0
State 1 State 2 State 3
OFF
OFF
CLOCK VCO
CLOCK OUTPUTS
ON
ON
GEN
W320-04
.....................Document #: 38-07010 Rev. *C Page 14 of 16
Layout Example
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
6
7
13
19
20
24
G
= VIA to GND plane layer.
V
= VIA to respective supply plane layer.
Note: Each supply plane or strip should have a ferrite bead and capacitors.
1
2
3
4
5
8
9
11
12
14
15
16
17
22
23
21
25
26
27
28
40
3918
41
10
31
30
29
36
35
34
33
32
37
38
FB
+3.3V Supply
C2
Ceramic Caps C1 = 10–22
µF
10
F
FB = Dale ILB1206 - 300 or 2TDKACB2012L-120 or 2 Murata BLM21B601S.
0.005

F
G G
VDDQ3
C1
C5 = 0.1 F
C6 = 10 F
G
V
G
V
G
V
G
V
G
V
G
V
G
V
G
G
VDDQ3
C5
C6

W320-04
G
V
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
C2 = 0.005 F
W320-04
.....................Document #: 38-07010 Rev. *C Page 15 of 16
Test Circuit
Note: All capacitors must be placed as close to the pins as is physically possible.
4, 9, 15, 20, 27, 31, 36, 41
VDD_REF, VDD_PCI,
OUTPUTS
W320-04
Note: Each supply pin must have an individual decoupling capacitor.
VDD_3V66, VDD_CORE
VDD_48 MHz, VDD_CPU
Test
Nodes
R
s
R
s
R
p
R
p
CPURef,USB Outputs
PCI,3V66 Outputs
30 pF
20 pF
Test Node
Test Node
8, 14, 19, 26, 32, 37, 46, 50
0.7V amplitude: R
S
= 33 ohm, R
P
= 50 ohm
0.7V Test Load
2 pF
2 pF
Ordering Information
Ordering Code Package Type Operating Range
W320-04H 56-pin SSOP Commercial 0C TO 70C
W320-04HT 56-pin SSOP - Tape and Reel Commercial 0C TO 70C
W320-04X 56-pin TSSOP Commercial 0C TO 70C
W320-04XT 56-pin TSSOP - Tape and Reel Commercial 0C TO 70C
Lead-Free
CYW320OXC-4 56-pin SSOP Commercial 0C TO 70C
CYW320OXC-4T 56-pin SSOP - Tape and Reel Commercial 0C TO 70C
CYW320ZXC-4 56-pin TSSOP Commercial 0C TO 70C
CYW320ZXC-4T 56-pin TSSOP - Tape and Reel Commercial 0C TO 70C
4, 9, 15, 20, 27, 31, 36, 41
VDD_REF, VDD_PCI,
OUTPUTS
W320-04
VDD_3V66, VDD_CORE
VDD_48 MHz, VDD_CPU
Test
Nodes
CPU
Ref,USB Outputs
PCI,3V66 Outputs
30 pF
20 pF
Test Node
Test Node
8, 14, 19, 26, 32, 37, 46 ,50
1.0V Test Load
2 pF
2 pF
33
33
63.4 63.4
475
1.0V Amplitude
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

W320-04H

Mfr. #:
Buy W320-04H
Manufacturer:
Silicon Labs
Description:
IC CLK/DRVR CPUOUT 200MHZ 56SSOP
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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