SN65LVDS94
www.ti.com
SLLS298F–MAY 1998–REVISED JANUARY 2006
LVDS SERDES RECEIVER
FEATURES
DGG PACKAGE
(TOP VIEW)
•
•
•
4:28 Data Channel Expansion at up to 1.904
Gigabits per Second Throughput
D22
D23
D24
V
CC
1
56
55
54
53
52
51
50
49
48
47
46
45
Suited for Point-to-Point Subsystem
Communication With Very Low EMI
D21
D20
D19
GND
D18
D17
D16
2
3
4 Data Channels and Clock Low-Voltage
Differential Channels in and 28 Data and
Clock Out Low-Voltage TTL Channels Out
GND
D25
4
5
D26
6
•
Operates From a Single 3.3-V Supply and
250 mW (Typ)
D27
LVDSGND
A0M
7
8
•
•
•
•
5-V Tolerant SHTDN Input
V
9
CC
Rising Clock Edge Triggered Outputs
Bus Pins Tolerate 4-kV HBM ESD
A0P
D15
D14
D13
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
A1M
A1P
Packaged in Thin Shrink Small-Outline
Package With 20 Mil Terminal Pitch
LVDSV
44 GND
CC
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
LVDSGND
A2M
D12
D11
D10
•
•
Consumes <1 mW When Disabled
Wide Phase-Lock Input Frequency Range
20 MHz to 68 MHz
A2P
CLKINM
CLKINP
A3M
V
CC
•
•
No External Components Required for PLL
D9
D8
D7
GND
D6
D5
D4
D3
Meets or Exceeds the Requirements of ANSI
EIA/TIA-644 Standard
A3P
LVDSGND
PLLGND
•
•
Industrial Temperature Qualified
TA = -40°C to 85°C
PLLV
Replacement for the DS90CR286
CC
PLLGND
SHTDN
CLKOUT
D0
V
CC
D2
D1
GND
DESCRIPTION
The SN65LVDS94 LVDS serdes (serializer/deserializer) receiver contains four serial-in 7-bit parallel-out shift
registers, a 7× clock synthesizer, and five low-voltage differential signaling (LVDS) line receivers in a single
integrated circuit. These functions allow receipt of synchronous data from a compatible transmitter, such as the
SN65LVDS93 and SN65LVDS95, over five balanced-pair conductors and expansion to 28 bits of single-ended
LVTTL synchronous data at a lower transfer rate.
When receiving, the high-speed LVDS data is received and loaded into registers at the rate seven times the
LVDS input clock (CLKIN). The data is then unloaded to a 28-bit wide LVTTL parallel bus at the CLKIN rate. A
phase-locked loop clock synthesizer circuit generates a 7× clock for internal clocking and an output clock for the
expanded data. The SN65LVDS94 presents valid data on the rising edge of the output clock (CLKOUT).
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright © 1998–2006, 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.