View SP8402_329909.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

SP8402
Very Low Phase Noise Divider by 2N
DS3738
ISSUE 2.1
March 1994
The SP8402 is a very low phase noise divider which divides by powers of two. The S0, S1, S2 data inputs select the division ratio in the range 21 to 28. Special circuits techniques have been used to reduce the phase noise considerably below that produced by standard dividers. The data inputs are CMOS or TTL compatible. The SP8402 is packaged in a 28 pin plastic SO package to be compatible with the SP8400 and SP8401 devices.
Ordering Information
SP8402 KG MPES (Commercial Grade)
FEATURES
I Very low Phase Noise (Typically -155 to 160dBc/Hz at 1kHz offset) I Supply Voltage 5V
N/C N/C N/C VCC +5V GND CLOCK INPUT CLOCK INPUT CLOCK INPUT CLOCK INPUT GND VCC +5V VCC +5V N/C S0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 N/C N/C N/C N/C N/C N/C N/C OUTPUT OUTPUT N/C VCC +5V N/C S2 S1
ABSOLUTE MAXIMUM RATINGS
Supply Voltage Output Current Storage Temperature Range Maximum Clock Input Voltage 6.5V 20mA -55C to +125C 2.5V p-p
MP28
Fig.1 Pin connections - top view
0 -10 -20 -30 -40 -50
(f) (dBc/Hz) -3dB
-60 -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 10 100 1k Frequency (Hz) 10k 100k
Fig.2 Typical single sideband phase noise measured at 768MHz
SP8402
ELECTRICAL CHARACTERISTICS
Guaranteed over: Supply voltage V CC = +4.75V to +5.25V Temperature Tamb = -10C to +75C Tested at +4.75V and +5.25V at T amb = +25C Characteristic Supply current Output voltage swing Input sensitivity 200MHz to 1.5GHz Pin Min. 4, 11, 12, 18 20, 21 7, 8 82 320 Value Typ. Max. 92 410 102 mA mV mV dBm Output loaded with 300R See Fig.5 p-p @ 1.4GHz input / 256 mode outputs loaded with 330R See Fig.5 RMS Sine wave into 50 Ohms (dBm equivalent) See Fig.3 Units Conditions
140 (-4)
Data Inputs Logic high voltage Low low voltage Input current
2.2 0.8 180
V V A
5V Data input voltage
600 500 400 V in mV rms 300 OPERATING WINDOW 200 140mV 100
355mV
0
200
400
600 800 1000 FREQUENCY MHz
1200
1400
1600
Fig.3 Typical input sensitivity
S0 L H L H L H L H
S1 L L H H L L H H
S2 L L L L H H H H
DIVISION RATIO 2 4 8 16 32 64 128 256
Fig.4 Truth table
2
SP8402
VCC
1 2 3 4 5
28 27 26 25 24 23 22
1nF 50R RF SIGNAL GENERATOR
6 7 8 9 10 11 12 13
SP8402
21 20 19 18 17 16 15
220nF OUTPUT
TTL/CMOS MODULUS CONTROL
14
50R 1nF 10nF 1nF 2x330R 10nF
Fig.5 Test circuit
3
SP8402
+5V 10 F
1 2 3 4 5
28 27 26 25 24 23 22
CLOCK INPUT
1nF 50R
6 7 8 9 10 11 12 13
OUTPUT
SP8402
21 20 19 18 17 16 15
S0 S1 S2 1nF 10nF 1nF
14
10nF
10nF
2x330R
Fig.5 Typical application combining output to increase signal and retain low phase noise
4
For more information about all Zarlink products visit our Web Site at
www.zarlink.com
Information relating to products and services furnished herein by Zarlink Semiconductor Inc. trading as Zarlink Semiconductor or its subsidiaries (collectively "Zarlink") is believed to be reliable. However, Zarlink assumes no liability for errors that may appear in this publication, or for liability otherwise arising from the application or use of any such information, product or service or for any infringement of patents or other intellectual property rights owned by third parties which may result from such application or use. Neither the supply of such information or purchase of product or service conveys any license, either express or implied, under patents or other intellectual property rights owned by Zarlink or licensed from third parties by Zarlink, whatsoever. Purchasers of products are also hereby notified that the use of product in certain ways or in combination with Zarlink, or non-Zarlink furnished goods or services may infringe patents or other intellectual property rights owned by Zarlink. This publication is issued to provide information only and (unless agreed by Zarlink in writing) may not be used, applied or reproduced for any purpose nor form part of any order or contract nor to be regarded as a representation relating to the products or services concerned. The products, their specifications, services and other information appearing in this publication are subject to change by Zarlink without notice. No warranty or guarantee express or implied is made regarding the capability, performance or suitability of any product or service. Information concerning possible methods of use is provided as a guide only and does not constitute any guarantee that such methods of use will be satisfactory in a specific piece of equipment. It is the user's responsibility to fully determine the performance and suitability of any equipment using such information and to ensure that any publication or data used is up to date and has not been superseded. Manufacturing does not necessarily include testing of all functions or parameters. These products are not suitable for use in any medical products whose failure to perform may result in significant injury or death to the user. All products and materials are sold and services provided subject to Zarlink's conditions of sale which are available on request.
Purchase of Zarlink's I2C components conveys a licence under the Philips I2C Patent rights to use these components in an I2C System, provided that the system conforms to the I2C Standard Specification as defined by Philips. Zarlink and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc. Copyright 2002, Zarlink Semiconductor Inc. All Rights Reserved.
TECHNICAL DOCUMENTATION - NOT FOR RESALE

▲Up To Search▲

Price & Availability of SP8402

	To Download SP8402 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .