STC4130 Datasheet, PDF (32/44 Pages) List of Unclassifed Manufacturers – Synchronous Clock for SETS

T0_User_Accu_History, 0x2c (R/W)
STC4130
Synchronous Clock for SETS
Data Sheet
Address
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
0x2c
Bits 0 - 7 of 32 bit User Holdover History
0x2d
Bits 8 - 15 of 32 bit User Term Holdover History
0x2e
Bits 16 - 23 of 32 bit User Term Holdover History
0x2f
Bits 24 - 31 of 32 bit User Term Holdover History
User accumulated history for T0 relative to the TCXO. Resolution is 0.745x10^-3 ppb.
Default value: 0.
T0_HO_Ramp, 0x30 (R/W)
Address
0x30
Bit7
Bit6
Bit5
Bit4
Not used Long term History Bandwidth
Holdover bandwidth and ramp controls for T0:
Bit3
Bit2
Short term History abdn-
width
0x30, bits 6 ~ 4
000
001
010
011
100
101
Long term
History
Bandwidth, mHz
9.7 mHz
4.9 mHz
2.4 mHz
1.2 mHz
0.61 mHz
0.30 mHz
0x30, bits 3 ~ 2
00
01
10
11
Short term
History
Bandwidth, mHz
2.5 mHz
1.24 mHz
0.62 mHz
0.31 mHz
Bit1
Bit0
Ramp control
Default value: 0x26
0x30, bits 1 ~ 0
00
01
10
11
Ramp control,
ppm/sec
No Control
1
1.5
2
Data Sheet #: TM084 Page 32 of 44 Rev: P02 Date: 12/5/06
© Copyright 2006 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice