SN65LV1021/SN65LV1212
10-MHz TO 40-MHz, 10:1 LVDS SERIALIZER/DESERIALIZER
SLLS526F – FEBRUARY 2002 – REVISED NOVEMBER 2002
100-Mbps to 400-Mbps Serial LVDS Data
Lock Indicator
Payload Bandwidth at 10-MHz to 40-MHz
System Clock
No External Components Required for PLL
Low-Cost 28-Pin SSOP Package
Industrial Temperature Qualified,
Pin-Compatible Superset of NSM
DS92LV1021/DS92LV1212
T = –40°C to 85°C
A
Chipset (Serializer/Deserializer) Power
Consumption <350 mW (Typ) at 40 MHz
Programmable Edge Trigger on Clock
(Rising or Falling Edge)
Synchronization Mode for Faster Lock
Flow-Through Pinout for Easy PCB Layout
SN65LV1021
Serializer
SN65LV1212
Deserializer
1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
SYNC1
SYNC2
DV
DV
AV
AGND
PWRDN
AGND
AGND
RCLK_R/F
REFCLK
R
R
R
R
R
CC
CC
CC
OUT0
OUT1
OUT2
OUT3
OUT4
2
2
3
3
D
D
D
D
D
D
D
D
D
D
IN0
IN1
IN2
IN3
IN4
IN5
IN6
IN7
IN8
IN9
4
4
AV
CC
5
5
R +
I
6
6
R –
DV
DGND
DV
I
CC
7
7
D +
PWRDN
REN
RCLK
LOCK
O
8
8
D –
O
CC
9
9
AGND
DEN
AGND
DGND
10
11
12
13
14
10
11
12
13
14
R
R
R
R
R
OUT5
OUT6
OUT7
OUT8
OUT9
AV
CC
AV
AGND
AGND
DGND
CC
TCLK_R/F
TCLK
DGND
DGND
description
The SN65LV1021 serializer and SN65LV1212 deserializer comprise a 10-bit serdes chipset designed to
transmitandreceiveserialdataoverLVDSdifferentialbackplanesatequivalentparallelwordratesfrom10 MHz
to 40 MHz. Including overhead, this translates into a serial data rate between 120-Mbps and 480-Mbps
payload-encoded throughput.
Upon power up, the chipset link can be initialized via a synchronization mode with internally generated SYNC
patterns, or the deserializer can be allowed to synchronize to random data. By using the synchronization mode,
the deserializer establishes lock within specified, shorter time parameters.
The device can be entered into a power-down state when no data transfer is required. Alternatively, a mode is
available to place the output pins in the high-impedance state without losing PLL lock.
The SN65LV1021 and SN65LV1212 are characterized for operation over ambient air temperature of –40°C to
85°C.
ORDERING INFORMATION
DEVICE
Serializer
PART NUMBER
SN65LV1021DB
SN65LV1212DB
Deserializer
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.
Copyright 2002, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265