參數(shù)資料
型號: DS1875T+
廠商: Maxim Integrated Products
文件頁數(shù): 84/92頁
文件大?。?/td> 0K
描述: IC SFP CTRLR/TRIPLEXER 38-TQFN
產(chǎn)品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 90
應用: 光纖
接口: I²C
電源電壓: 2.85 V ~ 3.9 V
封裝/外殼: 38-WFQFN 裸露焊盤
供應商設備封裝: 38-TQFN(5x7)
包裝: 管件
安裝類型: 表面貼裝
產(chǎn)品目錄頁面: 1431 (CN2011-ZH PDF)
DS1875
Table 02h, Register FBh to FCh: BIAS DAC
FACTORY DEFAULT
8000h
READ ACCESS
PW2
WRITE ACCESS
N/A
MEMORY TYPE
Volatile
FBh
BOL
0
212
211
210
29
28
27
FCh
27
26
25
24
23
22
21
20
BIT 7
BIT 0
The bias open-loop bit (BOL) reflects the status of the BIAS current-control loop. If it is 1, the loop is open and
the DS1875 is controlling the BIAS output from the LUT. If it is 0, the loop is closed and the BIAS output is
controlled by active feedback from the BMD pin. The remaining bits are the digital value used for the BIAS
output regardless of the value of OL.
Table 02h, Register FDh: BIAS OL
FACTORY DEFAULT
00h
READ ACCESS
PW2
WRITE ACCESS
PW2 and APC EN = 1
MEMORY TYPE
Volatile
FDh
27
26
25
24
23
22
21
20
BIT 7
BIT 0
The digital value used for BIAS at power-on and during open loop. It is recalled from Table 08h at the adjusted
memory address found in TINDEX. This register is updated at the end of the temperature conversion. The
correct value depends on the value of BOLFS (Table 02h, Register 89h, bit 3).
If BOLFS = 0, BIAS OL[7:0] = IBIAS[11:4].
If BOLFS = 1, BIAS OL[7:0] = IBIAS [12:5].
PON Triplexer and SFP Controller
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