View SP8713_78810.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

SP8713 SP8713
1100MHz Very Low Current Three Modulus Divider
DS3934 - 4.0 November 1997
The SP8713 is a switchable divide by 64/65/72 programmable divider which is guaranteed to operate up to 1100MHz. It will operate from a supply of 2.7V to 5.25V and requires typically 4.1mA (including the output current). It also features a power down facility for battery economy. The RF inputs are internally biased and should be capacitively coupled to the signal source. The output is designed to interface with CMOS synthesisers, such as the NJ88C50.
RF INPUT VCC MODULUS CONTROL 1 OUTPUT
1 2 3 4 SP8713
8 7 6 5
RF INPUT POWER DOWN MODULUS CONTROL 2 VEE
FEATURES s s s s s s s Operation to 1100MHz Very Low Power Single Supply Operation 2.7V to 5.25V Power Down Facility for Battery Economy Latched Modulus Control Inputs Push Pull Output Drive ESD Protection on All Pins
MP8
Fig. 1 Pin connections - top view
APPLICATIONS s Cellular Telephones s Cordless Telephones s Mobile Radio
ORDERING INFORMATION
SP8713 IG MPAS Industrial Temperature Range Miniature Plastic DIL Package SP8713 IG MPAC As above supplied on Tape and Reel
ESD precautions must be observed
V
CC 2 250K NOMINAL
6 MC1
D
DD TYPE TYPE
CK
Q 7 POWER DOWN
3 MC2
BIAS
Q
D V CC
D TYPE
CONTROL LOGIC
5 V EE
RF INPUT (CLOCK)
1
DIVIDE BY 4/5
8 V
DIVIDE BY 16
4 OUTPUT
EE
Fig. 2 Block diagram
1
SP8713
ABSOLUTE MAXIMUM RATINGS
Supply voltage (VEE=0V) (note 1) -0.5V to 7V Control and RF inputs, (note 1) -0.5V to VCC+0.5V RF output (VEE =0V) RF input current (note 1) 10mA Operating temperature -40C to +85C Storage temperature range -55C to +150C Maximum junction temperature +150C NOTE 1. Duration <2 minutes.
ELECTRICAL CHARACTERISTICS
Guaranteed over the following conditions (unless otherwise stated): VCC=+2.7V to +5.25V (with respect to VEE), Output load (pin 4) = 10pF, Tamb = -40C to +85C (note 2) Value Characteristic Min. (note 3) (note 3) VCC-0.5 0 (note 4) (note 4) (note 4) (note 4) 0.6VCC 0 0.6VCC 0 1100 200 50 200 500 (notes 5,6,8) (notes 6,8) (notes 7,8) 20 1 10 6 600 Typ. 4.1 8 Max. 4.7 50 VCC VCC-2.0 VCC 0.4VCC VCC 0.4VCC Units Conditions
Supply current Supply current Power down high Power down low Modulus control 1 high Modulus control 1 low Modulus control 2 high Modulus control 2 select low Max. sinewave input frequency Min. sinewave input frequency Min. RF input voltage Max. RF input voltage Output level (pin 4) Modulus set-up time, ts Modulus hold time, th Power down time, tpd
mA A V V V V V V MHz MHz
Power down input low Power down input high
Divide by 64 or 72 Divide by 65 or 72 Divide by 72 Divide by 64 or 65 See Figure 5 See Figure 5
mV RMS RF input 200MHz to 1100MHz. See Figure 5 mV RMS RF input 200MHz to 1100MHz. See Figure 5 mV p-p ns ns s s RF input = 1GHz RF input = 1GHz See Figure 9 See Figure 9
Power down recovery time, tpu (notes 7,8)
NOTES 2. All electrical testing is performed at +85C. 3. Typical values are measured at +25C and VCC = +5V. 4. Modulus Control and Ratio Select are high impedance inputs which can be driven directly by standard CMOS outputs. 5. Modulus control is latched at the end of the previous cycle. 6. See Figure 4. 7. See Figure 8. 8. These parameters are not tested but are guranteed by design.
2
SP8713
OPERATING NOTES
The RF inputs are biased internally and are normally coupled to the signal source with suitable capacitors. The output stage has a novel design and is intended to drive a CMOS synthesiser input. External pull-down resistors or circuits are not required. The SP8713 is not suitable for driving TTL or similar devices. The device will operate down to DC frequencies for non-sinusoidal signals provided that the input slew rate is better than 100V/s. POWER DOWN (pin 7) is connected internally to a pull-up resistor. If the battery economy facility is not used, pin 7 should be connected to VEE.
RF INPUT VOLTAGE (mV RMS)
1000
Modulus Control 1 (Pin 3) L H H L
Modulus Control 2 (Pin 6) L L H H
Division Ratio
800 TYPICAL OVERLOAD
600
65 64 72 72
400 TYPICAL SENSITIVITY 200 GUARANTEED* OPERATING WINDOW
Table 1 Truth table
0 200 400 600 800 1000 1200
FREQUENCY (MHZ)
* Tested as specified in table of Electrical Characteristics
Fig. 3 Typical input characteristics
RF INPUT CLOCK
MODULUS CONTROL INPUTS
DON'T CARE
DON'T CARE
OUTPUT
32 or 36
32, 33 or 36
ts th
Fig. 4 Modulus control timing diagram
3
SP8713
V CC 100n 50 MONITOR 1n 50 SIGNAL SOURCE
V CC RF INPUT
V EE POWER DOWN
SP8713
OUTPUT 1n RF INPUT MC 1 MC 2 CL
OUTPUT
10n
10n
MODULUS CONTROL 1 INPUT
MODULUS CONTROL 2 INPUT
Fig. 5 Toggle frequency test circuit
j1 j0.5 j2
S11 PLOT 50 OHM NORMALISED
j0.2
0.2
0.5
1
2
f1
-j0.2
f1: 130MHz f2: 1310MHz
-j0.5
f2 -j2
-j1
Fig. 6 Typical S11 parameter for pin 1. VCC = +5.0V
4
SP8713
300
200
R( ) R()
100
0
-100
-200
-300
jx ( ) jx()
-400
-500
-600
-700
-800 100
200
300
400
500
600
700 800 900 INPUT FREQUENCY (MHz)
1000
1100
1200
1300
1400
Fig. 7 Typical input impedance v. frequency
5
SP8713
FREQ-MHZ 130.000 153.600 177.200 200.800 224.400 248.000 271.600 295.200 318.800 342.400 366.000 389.600 413.200 436.800 460.400 484.000 507.600 531.200 554.800 578.400 602.000 625.600 649.200 672.800 696.400 720.000 743.600 767.200 790.800 814.400 838.000 861.600 885.200 908.800 932.400 956.000 979.600 1003.20 1026.80 1050.40 1074.00 1097.60 1121.20 1144.80 1168.40 1192.00 1215.60 1239.20 1262.80 1286.40 1310.00
R () 255.068 153.362 153.330 115.187 88.649 80.815 71.050 56.207 39.526 41.338 38.779 39.210 23.809 21.221 27.545 23.333 22.227 19.931 17.767 17.636 14.607 12.479 13.075 12.891 12.583 11.250 10.213 10.187 11.269 11.081 10.509 10.063 10.172 10.745 10.841 10.884 12.260 12.984 14.508 16.625 19.260 22.799 23.285 21.149 18.956 16.434 14.377 13.743 12.711 12.776 12.598
jx () -733.538 -688.623 -583.339 -545.839 -482.377 -441.798 -411.502 -369.645 -346.620 -323.129 -304.804 -280.556 -269.674 -255.279 -245.161 -234.680 -224.572 -211.375 -203.241 -194.613 -186.545 -182.049 -174.839 -168.320 -160.468 -156.267 -149.642 -145.328 -143.144 -137.557 -132.750 -129.254 -124.495 -120.568 -118.100 -113.395 -109.552 -105.975 -103.110 -99.886 -98.149 -98.605 -99.907 -100.925 -99.639 -98.425 -95.033 -92.553 -89.249 -86.081 -82.581
Table.2 Coefficients for Fig.7
6
SP8713
VOLTAGE CURRENT
tpu
0.95 I C VCC - 0.5V POWER DOWN INPUT VOLTAGE SUPPLY CURRENT
VCC - 2.0V
tpd
TIME
0.05 I C
Fig. 8 Power up and power down
PULSE GENERATOR INPUT 47
8 SP8713 1
POWER SUPPLY
+ CURRENT SENSE RESISTOR OSCILLOSCOPE PROBE POINT
10nF
Fig. 9 Power-down time test circuit
7
http://www.mitelsemi.com
World Headquarters - Canada Tel: +1 (613) 592 2122 Fax: +1 (613) 592 6909 North America Tel: +1 (770) 486 0194 Fax: +1 (770) 631 8213 Asia/Pacific Tel: +65 333 6193 Fax: +65 333 6192 Europe, Middle East, and Africa (EMEA) Tel: +44 (0) 1793 518528 Fax: +44 (0) 1793 518581
Information relating to products and services furnished herein by Mitel Corporation or its subsidiaries (collectively "Mitel") is believed to be reliable. However, Mitel 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 Mitel or licensed from third parties by Mitel, whatsoever. Purchasers of products are also hereby notified that the use of product in certain ways or in combination with Mitel, or non-Mitel furnished goods or services may infringe patents or other intellectual property rights owned by Mitel. This publication is issued to provide information only and (unless agreed by Mitel 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 Mitel 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 Mitel's conditions of sale which are available on request.
M Mitel (design) and ST-BUS are registered trademarks of MITEL Corporation Mitel Semiconductor is an ISO 9001 Registered Company Copyright 1999 MITEL Corporation All Rights Reserved Printed in CANADA TECHNICAL DOCUMENTATION - NOT FOR RESALE

▲Up To Search▲

Price & Availability of SP8713

	To Download SP8713 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .