参数资料
型号: DS1884AT+T
厂商: Maxim Integrated Products
文件页数: 86/92页
文件大小: 0K
描述: IC SFP PON ONU CTRLR 24TQFN
标准包装: 2,500
系列: *
DS1884
SFP and PON ONU Controller
with Digital LDD Interface
87
Maxim Integrated
A2h Table 04h, Register F8h–FFh: MOD OFFSET or SET_IMOD LUT
A2h Table 06h Register Descriptions
A2h Table 06h, Register 80h–A7h: BIAS or APC LUT
FACTORY DEFAULT
00h
READ ACCESS
PW2 or (PW1 and RWTBL246) or (PW1 and RBL246)
WRITE ACCESS
PW2 or (PW1 and RWTBL246)
MEMORY TYPE
Nonvolatile (EE)
Open Loop and APC Loop
F8h–FFh
28
27
26
25
24
23
22
21
Dual Closed Loop (SET_IMOD)
F8h–FFh
29
28
27
26
25
24
23
22
BIT 7
BIT 0
FACTORY DEFAULT
00h
READ ACCESS
PW2 or (PW1 and RWTBL246) or (PW1 and RBL246)
WRITE ACCESS
PW2 or (PW1 and RWTBL246)
MEMORY TYPE
Nonvolatile (EE)
Open Loop
80h–A7h
27
26
25
24
23
22
21
20
APC and Dual Closed Loop
80h–A7h
27
26
25
24
23
22
21
20
BIT 7
BIT 0
The APC LUT is a set of registers assigned to hold the temperature profile for the APC reference DAC. The tem-
perature measurement is used to index the LUT (TINDEX, A2h Table 02h, Register 81h) in 4NC increments from
-40NC to +100NC, starting at Register 80h. Values recalled from this EEPROM memory table are written into the
APC DAC (A2h Table 02h, Register CDh) location, which holds the value until the next temperature conversion.
The part can be placed into a manual mode (APC LUT EN bit, A2h 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.
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