SI5345-44-42 Datasheet, PDF (5/62 Pages) Silicon Laboratories – 10-CHANNEL

Si5345/44/42
Table 2. DC Characteristics
(V_DD = 1.8 V ±5%, V_DDA = 3.3 V ±5%, V_DDO = 1.8 V ±5%, 2.5 V ±5%, or 3.3 V ±5%, T_A = –40 to 85 °C)
Parameter
Symbol
Test Condition
Min
Typ
Max Unit
Core Supply Current
I_DD
Si5345
—
125
185
mA
Si5344
—
105
155
mA
Si5342
—
105
155
mA
I_DDA
Si5345
Si5344
—
120
125
mA
—
115
120
mA
Output Buffer Supply Current
I_DDOx
Si5342
—
LVPECL Output⁴
—
@ 156.25 MHz
LVDS Output⁴
—
@ 156.25 MHz
3.3 V LVCMOS⁵ output —
@ 156.25 MHz
2.5 V LVCMOS⁵ output —
@ 156.25 MHz
1.8 V LVCMOS⁵ output —
@ 156.25 MHz
115
120
mA
21
25
mA
15
18
mA
21
25
mA
16
18
mA
12
13
mA
Total Power Dissipation
P_d
Si5345 Notes 1, 6 —
880 1040 mW
Si5344 Notes 2, 6 —
720
850 mW
Si5342 Notes 3, 6 —
715
840 mW
Notes:
1. Si5345 test configuration: 10x 3.3 V LVDS outputs enabled @156.25 MHz. Excludes power in termination resistors.
2. Si5344 test configuration: 4x 3.3 V LVDS outputs enabled @ 156.25 MHz. Excludes power in termination resistors.
3. Si5342 test configuration: 2x 3.3 V LVDS outputs enabled @ 156.25 MHz. Excludes power in termination resistors.
4. Differential outputs terminated into an AC coupled 100  load.
5. LVCMOS outputs measured into a 6 inch 50  PCB trace with 5 pF load. Measurements were made in CMOS3 mode.
Differential Output Test Configuration
LVCMOS Output Test Configuration
IDDO
OUT
OUT
0.1 uF
50
100
IDDO
OUTa
OUTb
6 inch
50
5 pF
50
0.1 uF
6. Detailed power consumption for any configuration can be estimated using ClockBuilder Pro when an evaluation board
(EVB) is not available. All EVBs support detailed current measurements for any configuration.
Rev. 1.0
5