DS1875T+TR MAXIM [Maxim Integrated Products], DS1875T+TR Datasheet - Page 12
![no-image](/images/no-image-200.jpg)
DS1875T+TR
Manufacturer Part Number
DS1875T+TR
Description
PON Triplexer and SFP Controller
Manufacturer
MAXIM [Maxim Integrated Products]
Datasheet
1.DS1875TTR.pdf
(92 pages)
- Current page: 12 of 92
- Download datasheet (2Mb)
PON Triplexer and SFP Controller
12
(V
CC
-0.25
-0.50
-0.75
-1.00
1.00
0.75
0.50
0.25
______________________________________________________________________________________
0
= +2.85V to +3.9V, T
0
32
64
200mV/div
200mV/div
DAC SETTING (DEC)
PWM DAC DNL
20V/div
96
-0.25
-0.50
-0.75
-1.00
1.00
0.75
0.50
0.25
0V
0V
0V
128 160
0
PWM DAC CHANGING FROM 00h TO 80h
0
A
R
= +25°C, unless otherwise noted.)
COMP
32
COMP
V
FB
192
OUT
DUTY CYCLE
64
= 24.3kΩ, C
224
DAC SETTING (dec)
M3QT DAC INL
96
256
5ms/div
128 160
COMP
-0.25
-0.50
-0.75
-1.00
1.00
0.75
0.50
0.25
Typical Operating Characteristics (continued)
192
= 220nF
0
0
DS1875 toc24
224
32
256
10%/div
0%
64
DAC SETTING (DEC)
PWM DAC INL
96
128 160
100mA/div
100mV/div
10mA/div
192
50V/div
5V/div
1V/div
0mA
0mA
0V
0V
0V
224
0V
FREQUENCY = 1050kHz 50% DUTY CYCLE
V
IN
V
256
OUT
CURRENT
= 3.3V, V
SW CURRENT INTO BSS123 FET
SW
RIPPLE (AC-COUPLED)
SW
SWITCHING WAVEFORMS
INDUCTOR
CURRENT
-0.25
-0.50
-0.75
-1.00
1.00
0.75
0.50
0.25
INDUCTOR
VOLTAGE
OUT
0
C2 = 0.1μF
0
100ns/div
2μs/div
~ 90V, I
32
OUT
64
DAC SETTING (DEC)
M3QT DAC DNL
~ 1.25mA,
SW
96
DS1875 toc25
DS1875 toc23
128 160
192
224
256
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