参数资料
型号: DS1876T+T&R
厂商: Maxim Integrated Products
文件页数: 61/69页
文件大小: 0K
描述: IC CTRLR SFP DUAL LDD 28TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: SFP 激光控制器
输入类型: 逻辑
输出类型: 逻辑
接口: I²C
电流 - 电源: 10mA
安装类型: 表面贴装
封装/外壳: 28-WFQFN 裸露焊盘
供应商设备封装: 28-TQFN-EP(5x5)
包装: 带卷 (TR)
64
Maxim Integrated
SFP Controller with Dual LDD Interface
DS1876
Table 04h Register Descriptions
Table 04h, Register 80h–C7h: MODULATION LUT (MOD)
Table 02h, Register C8h–F7h: EMPTY
FACTORY DEFAULT
00h
READ ACCESS
PW2 or (PW1 and RWTBL46)
WRITE ACCESS
PW2 or (PW1 and RWTBL46)
A2h AND B2h MEMORY
Different A2h and B2h memory locations
MEMORY TYPE
Nonvolatile (EE)
80h–C7h
27
26
25
24
23
22
21
20
BIT 7
BIT 0
Digital value for the MOD1 DAC (A2h address) and MOD2 DAC (B2h address) outputs. The MODULATION LUT
is a set of registers assigned to hold the temperature profile for the MOD1 and MOD2 DACs. The temperature
measurement is used to index the LUT (TINDEX, Table 02h, Register 81h) in 2NC increments from -40NC to
+102NC, starting at 80h in Table 04h. Register 80h defines the -40NC to -38NC MOD output, Register 81h defines
-38NC to -36NC MOD output, and so on. Values recalled from this EEPROM memory table are written into the
MOD1 and MOD2 DACs (Table 02h, Registers C8h–C9h, CCh–CDh) locations that hold the values until the next
temperature conversion. The part can be placed into a manual mode (MOD1EN and MOD2EN bits, Table 02h,
Register 80h), where MOD1 and MOD2 DACs are directly controlled for calibration. If the temperature compen-
sation functionality is not required, program the entire Table 04h to the desired modulation setting.
FACTORY DEFAULT
00h
READ ACCESS
N/A
WRITE ACCESS
N/A
A2h AND B2h MEMORY
N/A
MEMORY TYPE
None
These registers do not exist.
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