DS1878T+T&R Maxim Integrated Products, DS1878T+T&R Datasheet - Page 10
DS1878T+T&R
Manufacturer Part Number
DS1878T+T&R
Description
IC CTLR SFP W/DGTL LDD RX 28TQFN
Manufacturer
Maxim Integrated Products
Type
SFP+ Controllerr
Datasheet
1.DS1878TTR.pdf
(98 pages)
Specifications of DS1878T+T&R
Input Type
*
Output Type
*
Interface
*
Current - Supply
*
Mounting Type
Surface Mount
Package / Case
28-WFQFN exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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SFP+ Controller with Digital LDD Interface
10
8, 17, 21
12, 13
15, 23
PIN
10
11
14
16
1
2
3
4
5
6
7
9
______________________________________________________________________________________
RSELOUT
TXDOUT
TXFOUT
MON3P,
MON3N
NAME
MON4
MON1
MON2
RSEL
GND
SDA
V CC
SCL
LOS
TXD
IN1
Rate-Select Output
I
I
Transmit Fault Output, Open Drain
Loss of Signal Input
Digital Input. General-purpose
input, AS1 in SFF-8079, or RS1 in
SFF-8431.
Transmit Disable Input
Ground Connection
Rate-Select Input
Transmit Disable Output
External Monitor Input 4
Differential External Monitor Input 3
and LOS Quick Trip
External Monitor Input 1 and
HBATH Quick Trip
Power-Supply Input
External Monitor Input 2, Feedback
Voltage for APC Loop, and TXP
HI/TXP LO Quick Trip
2
2
C Serial-Clock Input
C Serial-Data Input/Output
FUNCTION
TOP VIEW
CSEL2OUT
CSEL1OUT
SCLOUT
SDAOUT
LOSOUT
V
TXF
CC
22
23
24
25
26
27
28
21
1
(5mm
+
20
2
×
THIN QFN
19
3
5mm
DS1878
18
4
×
17
5
0.75mm)
PIN
18
19
20
22
24
25
26
27
28
16
—
6
EP
15
7
CSEL2OUT
CSEL1OUT
SDAOUT
14
13
12
11
10
SCLOUT
LOSOUT
9
8
NAME
REFIN
DAC1
DAC2
TXF
EP
MON1
MON3N
MON3P
MON4
TXDOUT
RSEL
GND
Reference Input for DAC1 and
Delta-Sigma Output 1
Delta-Sigma Output 2
Chip-Select Output 2. Part of 3-wire
interface to a laser driver/limiting
amplifier.
Chip-Select Output 1. Part of 3-wire
interface to a laser driver/limiting
amplifier.
Serial-Clock Output. Part of 3-wire
interface to a laser driver/limiting
amplifier.
Serial-Data Input/Output. Part of
3-wire interface to a laser
driver/limiting amplifier.
Receive Loss-of-Signal Output
Transmit Fault Input
Exposed Pad. Connect to ground.
Pin Configuration
Pin Description
FUNCTION
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