SI5326A-C-GM Silicon Laboratories Inc, SI5326A-C-GM Datasheet - Page 32

• Manufacturer Part Number: SI5326A-C-GM
• Description: IC ANY-RATE MULTI/ATTEN 36-QFN
• Manufacturer: Silicon Laboratories Inc
• Type: Clock Multiplierr

Specifications of SI5326A-C-GM

• Package / Case: 36-QFN
• Pll: Yes
• Input: Clock
• Output: CML, CMOS, LVDS, LVPECL
• Number Of Circuits: 1
• Ratio - Input:output: 2:2
• Differential - Input:output: Yes/Yes
• Frequency - Max: 1.4GHz
• Divider/multiplier: Yes/Yes
• Voltage - Supply: 1.71 V ~ 3.63 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Frequency-max: 1.4GHz
• Max Input Freq: 710 MHz
• Max Output Freq: 945 MHz
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Number Of Outputs: 2
• Supply Current: 251 mA
• Supply Voltage (max): 3.3 V
• Supply Voltage (min): 1.8 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Si5326
Reset value = 0010 1100
32
Register 19.
Name
Type
6:5
4:3
2:0
Bit
Bit
7
VALTIME [1:0] VALTIME [1:0].
LOCKT [2:0]
FOS_EN
FOS_THR
FOS_EN
R/W
Name
D7
[1:0]
FOS_EN.
Frequency Offset Enable globally disables FOS. See the individual FOS enables
(FOSX_EN, register 139).
0: FOS disable
1: FOS enabled by FOSx_EN
FOS_THR [1:0].
Frequency Offset at which FOS is declared (relative to the selected FOS reference):
00: ± 11 to 12 ppm (Stratum 3/3E compliant, with a Stratum 3/3E used for REFCLK
01: ± 48 to 49 ppm (SMC)
10: ± 30 ppm (SONET Minimum Clock (SMC), with a Stratum 3/3E used for REFCLK.
11: ± 200 ppm
Sets amount of time for input clock to be valid before the associated alarm is removed.
00: 2 ms
01: 100 ms
10: 200 ms
11: 13 seconds
LOCKT [2:0].
Sets retrigger interval for one shot monitoring phase detector output. One shot is trig-
gered by phase slip in DSPLL. Refer to the Si53xx Family Reference Manual for more
details.
000: 106 ms
001: 53 ms
010: 26.5 ms
011: 13.3 ms
100: 6.6 ms
101: 3.3 ms
110: 1.66 ms
111: .833 ms
D6
FOS_THR [1:0]
R/W
D5
Rev. 1.0
D4
VALTIME [1:0]
R/W
Function
D3
D2
LOCKT [2:0]
R/W
D1
D0