DS1865T+T&R Maxim Integrated Products, DS1865T+T&R Datasheet - Page 60

• Manufacturer Part Number: DS1865T+T&R
• Description: IC PON CONTROL TRI 28-TQFN
• Manufacturer: Maxim Integrated Products

Specifications of DS1865T+T&R

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 28-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PON Triplexer Control and
Monitoring Circuit
60
Table 02h, Register BCh: HTXP
FACTORY DEFAULT:
READ ACCESS
WRITE ACCESS
MEMORY TYPE:
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:
READ ACCESS
WRITE ACCESS
MEMORY TYPE:
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:
READ ACCESS
WRITE ACCESS
MEMORY TYPE:
Fast- com p ar i son D AC setti ng for hi g h BIAS . C om p ar i sons g r eater than thi s val ue, found on the M ON 1 p i n, cr eate a BIAS H I al ar m .
Table 02h, Register BFh: MAX IBIAS
FACTORY DEFAULT:
READ ACCESS
WRITE ACCESS
MEMORY TYPE:
Thi s val ue d efi nes the m axi m um D AC val ue al l ow ed for the up p er 8 b i ts of I
b i nar y sear ch, thi s val ue w i l l not cause an al ar m b ut w i l l sti l l cl am p the I
op er ati ons) , i f the AP C l oop tr i es to cr eate an I
00h thr oug h FE h ar e i ntend ed for nor m al AP C m od e of op er ati on. S etti ng FFh i s r eser ved for m anual IBIAS m od e.
____________________________________________________________________
BCh
BDh
BEh
BFh
bit7
bit7
bit7
bit7
2
2
2
2
12
7
7
7
00h
PW2
PW2
00h
PW2
PW2
00h
PW2
PW2
00h
PW2
PW2
Nonvolatile (SEE)
Nonvolatile (SEE)
Nonvolatile (SEE)
Nonvolatile (SEE)
2
2
2
2
11
6
6
6
B IA S
val ue g r eater than thi s setti ng , i t i s cl am p ed and cr eates a BIAS M AX al ar m . S etti ng s
2
2
2
2
10
5
5
5
2
2
2
2
4
4
4
9
B IA S
B IA S
D AC outp ut. After the star tup seq ence ( or nor m al AP C
outp ut d ur i ng al l op er ati ons. D ur i ng the i nti al step and
2
2
2
2
3
3
3
8
2
2
2
2
2
2
2
7
2
2
2
2
1
1
1
6
bit0
bit0
bit0
bit0
2
2
2
2
0
0
0
5