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XTNETA1622DW

型号：

XTNETA1622DW

品牌：

TI[ TEXAS INSTRUMENTS ]

页数：

6 页

PDF大小：

92 K

下载PDF手册
TNETA1622  
622.08-MHz CLOCK-RECOVERY DEVICE  
SDNS017C – FEBRUARY 1994 – REVISED DECEMBER 1995  
DW PACKAGE  
(TOP VIEW)  
Recovers a 622.08-MHz Clock Signal From  
a 622.08-Mbit/s STS-12/STM-4 NRZ Data  
Stream  
V
V
1
2
3
4
5
6
7
8
9
10  
20 GND  
CC  
CC  
Accepts Pseudo-ECL (PECL) Input Voltage  
Levels on the Input Data Stream  
19  
18  
17  
16  
15  
14  
13  
12  
11  
GND  
NC  
GND  
DATAOUT  
DATAOUT  
Requires a Single 5-V Supply  
Provides PECL-Clock and PECL-Data  
Outputs  
DATAIN  
DATAIN  
GND  
V
V
CC  
CC  
CLKOUT  
CLKOUT  
GND  
description  
V
CC  
CAPOUTN  
CAPOUTP  
The TNETA1622 recovers an embedded clock  
signal from a 622.08-Mbit/s STS-12/STM-4  
nonreturn-to-zero (NRZ) data stream using a  
frequency/phase-locked loop. The device  
accepts PECL (ECL signals referenced to 5 V  
instead of GND) input-voltage levels. The  
recovered clock and data outputs are PECL  
compatible. The serial data input and recovered  
clock and data outputs are differential to provide  
maximum noise immunity.  
GND  
NC – No internal connection  
The TNETA1622 requires only a positive 5-V supply (5 V ± 5%) for operation. The TNETA1622 is characterized  
for operation over a temperature range of –40°C to 85°C.  
functional block diagram  
CAPOUTP CAPOUTN  
Voltage-  
Controlled  
Oscillator  
Frequency-  
and-Phase  
Detector  
Charge  
Pump/Loop  
Filter  
DATAIN  
DATAIN  
Transition  
Detector  
DATAOUT  
DATAOUT  
CLKOUT  
CLKOUT  
Retiming  
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 1995, Texas Instruments Incorporated  
PRODUCT PREVIEW information concerns products in the formative or  
design phase of development. Characteristic data and other  
specifications are design goals. Texas Instruments reserves the right to  
change or discontinue these products without notice.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
TNETA1622  
622.08-MHz CLOCK-RECOVERY DEVICE  
SDNS017C – FEBRUARY 1994 – REVISED DECEMBER 1995  
Terminal Functions  
TERMINAL  
I/O  
DESCRIPTION  
NAME  
NO.  
CAPOUTN  
CAPOUTP  
9
10  
I
Capacitor connection for phase-locked-loop filter  
CLKOUT  
CLKOUT  
13  
14  
O
I
Recovered clock output, PECL compatible  
Serial data input, PECL compatible  
Serial data output, PECL compatible  
Ground (0-V reference)  
DATAIN  
DATAIN  
5
6
DATAOUT  
DATAOUT  
17  
18  
O
4, 7, 11, 12,  
19, 20  
GND  
V
CC  
NC  
1, 2, 8, 15, 16  
3
Supply voltage  
No connection. Leave floating (open).  
†
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)  
Supply voltage range, V  
(see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V  
CC  
Input voltage range, V , PECL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 V to 7 V  
I
Power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 562 mW  
Operating free-air temperature range, T  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to 85°C  
A
Storage temperature range, T  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C  
stg  
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and  
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not  
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.  
NOTE 1: All voltage values are with respect to the GND terminals.  
recommended operating conditions  
MIN  
NOM  
MAX  
UNIT  
V
V
V
V
Supply voltage  
4.75  
5
5.25  
CC  
IH  
IL  
High-level input voltage  
Low-level input voltage  
Operating free-air temperature  
PECL (see Note 2)  
PECL (see Note 2)  
V
V
–1.15  
V
–0.80  
V
CC  
CC  
–1.90  
V
–1.50  
85  
V
CC  
CC  
T
A
– 40  
°C  
NOTE 2: The algebraic convention, in which the least positive (most negative) value is designated minimum, is used in this data sheet for  
logic-level voltages only.  
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
TNETA1622  
622.08-MHz CLOCK-RECOVERY DEVICE  
SDNS017C – FEBRUARY 1994 – REVISED DECEMBER 1995  
electrical characteristics over recommended ranges of operating free-air temperature and supply  
voltage (unless otherwise noted) (see Figure 1)  
PARAMETER  
TEST CONDITIONS  
MIN  
TYP  
MAX  
UNIT  
DATAOUT,  
DATAOUT See Notes 2 and 3  
V
= 4.75 V to 5.25 V,  
CC  
V
V
V
V
V
High-level output voltage  
V
–1.03  
V
V
–0.85  
V
OH  
CC  
CC  
DATAOUT, = 4.75 V to 5.25 V,  
DATAOUT See Notes 2 and 3  
V
CC  
Low-level output voltage  
High-level output voltage  
Low-level output voltage  
Output voltage swing, PECL  
High-level input current  
Low-level input current  
V
CC  
–1.85  
–1.62  
V
V
OL  
CC  
CLKOUT,  
CLKOUT  
V
CC  
= 5 V  
V
V
–1.0  
OH  
CC  
CLKOUT,  
CLKOUT  
V
V
= 5 V  
–1.6  
V
OL  
CC  
CC  
CLKOUT,  
CLKOUT  
= 4.75 V to 5.25 V,  
CC  
400  
mV  
µA  
µA  
O(PP)  
See Note 3  
DATAIN,  
DATAIN  
I
IH  
V
CC  
= 5.25 V,  
V = 4.45 V  
I
DATAIN,  
DATAIN  
I
IL  
V
V
= 5.25 V,  
= 5.25 V,  
V = 3.35 V  
I
CC  
f = 622.08 Mbit/s,  
f = 622.08 Mbit/s,  
CC  
107  
107  
Outputs open  
I
Supply current  
mA  
CC  
V
= 5.25 V,  
CC  
See Note 4  
NOTES: 2. The algebraic convention, in which the least positive (most negative) value is designated minimum, is used in this data sheet for  
logic-level voltages only.  
3. PECL outputs are terminated through a 50-Ω resistor to V  
–2 V.  
CC  
4. CLKOUT, CLKOUT, DATAOUT, and DATAOUT each are terminated with a 50-Ω resistor to V  
–2 V.  
CC  
operating characteristics over recommended operating free-air temperature range (unless  
otherwise noted) (see Figure 1)  
PARAMETER  
TEST CONDITIONS  
See Note 5  
MIN  
TYP  
MAX  
UNIT  
ms  
Acquisition time  
Deviation of clock-sampling point, t  
RMS jitter, recovered clock  
See Figure 1  
See Note 6  
ps  
csp  
ps  
Peak-to-peak jitter, recovered clock  
ps  
Input data rate  
622.08  
Mbit/s  
Duty cycle, recovered clock  
See Note 3  
See Note 7  
45%  
55%  
Maximum number of consecutive bits (1 or 0) in input data stream  
NOTES: 3. PECL outputs are terminated through a 50-Ω resistor to V  
– 2 V.  
CC  
7
5. Acquisition time is the time required to achieve a valid clock output while applying a 2 – 1 pseudo-random bit sequence.  
31  
6. RMS jitter is measured with a 2 – 1 pseudo-random bit sequence.  
13  
7. This measurement is made with a 2 – 1 pseudo-random bit sequence with string substitution.  
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
TNETA1622  
622.08-MHz CLOCK-RECOVERY DEVICE  
SDNS017C – FEBRUARY 1994 – REVISED DECEMBER 1995  
PARAMETER MEASUREMENT INFORMATION  
V
CC  
– 2 V  
50 Ω 50 Ω 50 Ω 50 Ω  
18  
17  
14  
13  
6
5
DATAOUT  
DATAOUT  
CLKOUT  
CLKOUT  
DATAIN  
DATAIN  
CAPOUTP  
10  
TNETA1622  
9
CAPOUTN  
LOAD CIRCUIT  
50%  
50%  
DATAIN  
50%  
50%  
CLKOUT  
t
csp  
VOLTAGE WAVEFORMS  
Figure 1. Load Circuit and Voltage Waveforms  
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
PACKAGE OPTION ADDENDUM  
www.ti.com  
24-Jun-2005  
PACKAGING INFORMATION  
Orderable Device  
Status (1)  
Package Package  
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)  
Qty  
Type  
Drawing  
XTNETA1622DW  
OBSOLETE  
SOIC  
DW  
20  
TBD  
Call TI  
Call TI  
(1) The marketing status values are defined as follows:  
ACTIVE: Product device recommended for new designs.  
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.  
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in  
a new design.  
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.  
OBSOLETE: TI has discontinued the production of the device.  
(2)  
Eco Plan  
-
The planned eco-friendly classification: Pb-Free (RoHS) or Green (RoHS  
&
no Sb/Br)  
-
please check  
http://www.ti.com/productcontent for the latest availability information and additional product content details.  
TBD: The Pb-Free/Green conversion plan has not been defined.  
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements  
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered  
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.  
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame  
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)  
(3)  
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder  
temperature.  
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is  
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the  
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take  
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on  
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited  
information may not be available for release.  
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI  
to Customer on an annual basis.  
Addendum-Page 1  
IMPORTANT NOTICE  
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications,  
enhancements, improvements, and other changes to its products and services at any time and to discontinue  
any product or service without notice. Customers should obtain the latest relevant information before placing  
orders and should verify that such information is current and complete. All products are sold subject to TI’s terms  
and conditions of sale supplied at the time of order acknowledgment.  
TI warrants performance of its hardware products to the specifications applicable at the time of sale in  
accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI  
deems necessary to support this warranty. Except where mandated by government requirements, testing of all  
parameters of each product is not necessarily performed.  
TI assumes no liability for applications assistance or customer product design. Customers are responsible for  
their products and applications using TI components. To minimize the risks associated with customer products  
and applications, customers should provide adequate design and operating safeguards.  
TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right,  
copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process  
in which TI products or services are used. Information published by TI regarding third-party products or services  
does not constitute a license from TI to use such products or services or a warranty or endorsement thereof.  
Use of such information may require a license from a third party under the patents or other intellectual property  
of the third party, or a license from TI under the patents or other intellectual property of TI.  
Reproduction of information in TI data books or data sheets is permissible only if reproduction is without  
alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction  
of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for  
such altered documentation.  
Resale of TI products or services with statements different from or beyond the parameters stated by TI for that  
product or service voids all express and any implied warranties for the associated TI product or service and  
is an unfair and deceptive business practice. TI is not responsible or liable for any such statements.  
Following are URLs where you can obtain information on other Texas Instruments products and application  
solutions:  
Products  
Applications  
Audio  
Amplifiers  
amplifier.ti.com  
www.ti.com/audio  
Data Converters  
dataconverter.ti.com  
Automotive  
www.ti.com/automotive  
DSP  
dsp.ti.com  
Broadband  
Digital Control  
Military  
www.ti.com/broadband  
www.ti.com/digitalcontrol  
www.ti.com/military  
Interface  
Logic  
interface.ti.com  
logic.ti.com  
Power Mgmt  
Microcontrollers  
power.ti.com  
Optical Networking  
Security  
www.ti.com/opticalnetwork  
www.ti.com/security  
www.ti.com/telephony  
www.ti.com/video  
microcontroller.ti.com  
Telephony  
Video & Imaging  
Wireless  
www.ti.com/wireless  
Mailing Address:  
Texas Instruments  
Post Office Box 655303 Dallas, Texas 75265  
Copyright 2005, Texas Instruments Incorporated  
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