参数资料
型号: DS1865T+T&R
厂商: Maxim Integrated Products
文件页数: 57/67页
文件大小: 0K
描述: IC PON CONTROL TRI 28-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
系列: *
类型: *
应用: *
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)
DS1865
PON Triplexer Control and
Monitoring Circuit
60
____________________________________________________________________
Table 02h, Register BCh: HTXP
FACTORY DEFAULT:
00h
READ ACCESS
PW2
WRITE ACCESS
PW2
MEMORY TYPE:
Nonvolatile (SEE)
BCh
2
7
2
6
2
5
2
4
2
3
2
1
2
0
bit7
bit0
Fast-comparison DAC threshold adjust for high transmit power. This value is added to the APC_DAC value recalled from Table 04h.
If the sum is greater than 0xFF, 0xFF is used. Comparisons greater than APC_DAC plus this value, found on the BMD pin, will
create a TXP-HI alarm.
Table 02h, Register BDh: LTXP
FACTORY DEFAULT:
00h
READ ACCESS
PW2
WRITE ACCESS
PW2
MEMORY TYPE:
Nonvolatile (SEE)
BDh
2
7
2
6
2
5
2
4
2
3
2
1
2
0
bit7
bit0
Fast-comparison DAC threshold adjust for low transmit power. This value is subtracted from the APC_DAC value recalled from
Table 04h. If the difference is less than 0x00, 0x00 is used. Comparisons less than APC_DAC minus this value, found on the BMD
pin, create a TXP-LO alarm.
Table 02h, Register BEh: HBIAS
FACTORY DEFAULT:
00h
READ ACCESS
PW2
WRITE ACCESS
PW2
MEMORY TYPE:
Nonvolatile (SEE)
BEh
2
7
2
6
2
5
2
4
2
3
2
1
2
0
bit7
bit0
Fast-comparison DAC setting for high BIAS. Comparisons greater than this value, found on the MON1 pin, create a BIAS HI alarm.
Table 02h, Register BFh: MAX IBIAS
FACTORY DEFAULT:
00h
READ ACCESS
PW2
WRITE ACCESS
PW2
MEMORY TYPE:
Nonvolatile (SEE)
BFh
2
12
2
11
2
10
2
9
2
8
2
7
2
6
2
5
bit7
bit0
This value defines the maximum DAC value allowed for the upper 8 bits of IBIAS output during all operations. During the intial step and
binary search, this value will not cause an alarm but will still clamp the IBIAS DAC output. After the startup seqence (or normal APC
operations), if the APC loop tries to create an IBIAS value greater than this setting, it is clamped and creates a BIAS MAX alarm. Settings
00h through FEh are intended for normal APC mode of operation. Setting FFh is reserved for manual IBIAS mode.
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