參數資料
型號: DS1875T+T&R
廠商: Maxim Integrated Products
文件頁數: 87/92頁
文件大?。?/td> 0K
描述: IC SFP CTRLR/TRIPLEXER 38-TQFN
產品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 2,500
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: 帶卷 (TR)
安裝類型: 表面貼裝
DS1875
PON Triplexer and SFP Controller
88
______________________________________________________________________________________
Table 05h Register Descriptions
Table 05h, Register 80h to A3h: APC TE LUT
FACTORY DEFAULT
00h
READ ACCESS
PW2
WRITE ACCESS
PW2
MEMORY TYPE
Nonvolatile (EE)
80h to A3h
27
26
25
24
23
22
21
20
BIT 7
BIT 0
The APC TE LUT is a set of registers assigned to hold the temperature profile for the APC reference DAC. The
values in this table combined with the APC bits in the COMP RANGING register (Table 02h, Register 8Dh)
determine the set point for the APC loop. The temperature measurement is used to index the LUT (TINDEX,
Table 02h, Register 81h) in 4°C increments from -40°C to +100°C, starting at Register 80h in Table 05h.
Register 80h defines the -40°C to -36°C APC reference value, Register 81h defines the -36°C to -32°C APC
reference value, and so on. Values recalled from this EEPROM memory table are written into the APC DAC
(Table 02h, Register 83h) location that holds the value until the next temperature conversion. The DS1875 can
be placed into a manual mode (APC EN bit, Table 02h, Register 80h), where APC DAC can be directly
controlled for calibration. If TE temperature compensation is not required by the application, program the entire
LUT to the desired APC set point.
Table 05h, Register A4h to A7h: RESERVED
FACTORY DEFAULT
00h
READ ACCESS
PW2
WRITE ACCESS
PW2
MEMORY TYPE
Nonvolatile (EE)
These registers are reserved.
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