SN65LVDS93
www.ti.com ................................................................................................................................................................. SLLS302G–MAY 1998–REVISED MAY 2009
LVDS SERDES TRANSMITTER
When transmitting, data bits D0 through D27 are
each loaded into registers upon the edge of the input
clock signal (CLKIN). The rising or falling edge of the
clock can be selected via the clock select (CLKSEL)
pin. The frequency of CLKIN is multiplied seven times
and then used to serially unload the data registers in
1
FEATURES
•
•
•
28:4 Data Channel Compression at up to
1.904 Gigabits per Second Throughput
Suited for Point-to-Point Subsystem
Communication With Very Low EMI
7-bit slices. The four serial streams and
a
28 Data Channels Plus Clock in Low-Voltage
TTL and 4 Data Channels Plus Clock Out
Low-Voltage Differential
phase-locked clock (CLKOUT) are then output to
LVDS output drivers. The frequency of CLKOUT is
the same as the input clock, CLKIN.
•
Selectable Rising or Falling Clock Edge
Triggered Inputs
DGG PACKAGE
(TOP VIEW)
•
•
Bus Pins Tolerate 6-kV HBM ESD
Operates From a Single 3.3-V Supply and
250 mW (Typ)
V
D4
1
56
55
54
53
52
51
50
49
48
47
46
45
CC
D5
D6
D3
D2
2
3
•
•
5-V Tolerant Data Inputs
D7
GND
D8
GND
D1
4
Packaged in Thin Shrink Small-Outline
Package With 20 Mil Terminal Pitch
5
D0
6
•
•
Consumes <1 mW When Disabled
D9
D10
D27
LVDSGND
Y1M
Y1P
Y2M
Y2P
7
8
Wide Phase-Lock Input Frequency Range
20 MHz to 68 MHz
V
CC
9
D11
D12
D13
10
11
12
•
•
No External Components Required for PLL
Outputs Meet or Exceed the Requirements of
ANSI EIA/TIA-644 Standard
GND 13
44 LVDSV
CC
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
D14
D15
LVDSGND
Y3M
•
•
Industrial Temperature Qualified TA = –40°C
to 85°C
D16
CLKSEL
D17
Y3P
Replacement for the DS90CR285
CLKOUTM
CLKOUTP
Y4M
DESCRIPTION
D18
D19
GND
D20
Y4P
LVDSGND
PLLGND
The SN65LVDS93 LVDS serdes (serializer/
deserializer) transmitter contains four 7-bit parallel-
load serial-out shift registers, a 7נ
clock synthesizer,
and five low-voltage differential signaling (LVDS)
drivers in a single integrated circuit. These functions
allow 28 bits of single-ended LVTTL data to be
synchronously transmitted over five balanced-pair
conductors for receipt by a compatible receiver, such
as the SN65LVDS94.
D21
D22
PLLV
CC
PLLGND
SHTDN
CLKIN
D26
D23
V
CC
D24
D25
GND
1
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Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright © 1998–2009, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.