参数资料
型号: DS1884AT+T
厂商: Maxim Integrated Products
文件页数: 85/92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
86
Maxim Integrated
A2h Table 04h Register Descriptions
A2h Table 04h, Register 80h–A7h or 80h–9Fh: MODULATION or TXCTRL5 LUT
A2h Table 04h, Register F0h–F7h: MOD MAX LUT
A2h Table 04h, Register A8h–EFh: EMPTY
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)
F0h–F7h
28
27
26
25
24
23
22
21
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 and APC Loop (Modulation)
80h–A7h
26
25
24
23
22
21
20
2-1
Dual Closed Loop (TXCTRL5)
80h–9Fh
27
26
25
24
23
22
21
20
BIT 7
BIT 0
The digital value for the modulation DAC output or TXCTRL5 register in MAX3710. The MODULATION LUT is a set
of registers assigned to hold the temperature profile for the MODULATION register. The temperature measurement
is used to index the LUT (TINDEX, A2h Table 02h, Register 81h) in 2NC increments from -40NC to +102NC, starting at
80h. Values recalled from this EEPROM memory table are written into the MODULATION VALUE register (A2h Table
02h, Register 82h–83h) location, which holds the value until the next temperature conversion. The part can be placed
into a manual mode (MOD LUT EN bit, A2h Table 02h, Register 80h), where MODULATION register is directly con-
trolled for calibration. If the temperature compensation functionality is not required, then program the entire table to
the desired modulation setting. The MODTC bit determines whether the 8-bit LUT values are loaded into the upper
8 bits or lower 8 bits of the 9-bit MOD DAC. See the BIAS, MODULATION, SET_2XAPC, TXCTRL5 LUTs section for
more details.
FACTORY DEFAULT
READ ACCESS
N/A
WRITE ACCESS
N/A
MEMORY TYPE
These registers are empty.
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