ETC 5962

ADVANCE INFORMATION
DS3647-1·2
410/11
SP8690 200MHz4
48/9
SP8691 200MHz4
The SP8690 and SP8691 are low power ECL variable
modulus dividers, with both ECL10K and TTL/CMOS compatible
outputs. They divide by the lower division ratio when either of
the ECL control inputs, PE1 or PE2, is in the high state and by
the higher ratio when both are low (or open circuit).
FEATURES
CLOCK INPUT
1
16
CLOCK INPUT
 PE1
CONTROL INPUTS 
 PE2
2
15
NC
3
14
NC
NC
4
13
NC
12
VEE
■ ECL and TTL/CMOS Compatible Outputs
■ AC-Coupled Input
■ Control Inputs ECL Compatible
QUICK REFERENCE DATA
SP8690
SP8691
VCC
5
NC
6
11
TTL/CMOS OUTPUT
NC
7
10
NC
ECL OUTPUT
8
9
ECL OUTPUT
DG16
■ Supply Voltage: 25·2V60·25V (ECL), 5V60·25V (TTL)
■ Power Consumption: 70mW (Typ.)
■ Temperature Range:
Fig. 1 Pin connections - top view
255°C to 1125°C (A Grade)
230°C to 170°C (B Grade)
ABSOLUTE MAXIMUM RATINGS
Supply voltage, |VCC2VEE|
ECL output current
Storage temperature range
Max. junction temperature
TTL output voltage
Input voltage
Max. open collector current
ORDERING INFORMATION
8V
10mA
265°C to 1150°C
1175°C
112V
2·5V p-p
15mA
SP8690 A DG
SP8690 B DG
SP8691 A DG
5962-87678 (SMD) (SP8690)
VCC
5
D1
PE1
PE2
CLOCK INPUT
CLOCK INPUT
Q1
D2
Q2
D3
Q3
D4
Q4
2
3
Q4
8
9
ECL OUTPUT
ECL OUTPUT
1
16
11
12
VEE
Fig. 2 Functional diagram (SP8690)
TTL/CMOS
OUTPUT
SP8690/SP8691
VCC
5
PE1
PE2
2
D1
Q1
Q2
D2
D3
Q3
CLOCK INPUT
8
Q4
ECL OUTPUT
3
9
Q4
Q2
CLOCK INPUT
D4
ECL OUTPUT
1
16
11
TTL/CMOS
OUTPUT
12
VEE
Fig. 3 Functional diagram (SP8691)
ELECTRICAL CHARACTERISTICS
Unless otherwise stated, the Electrical Characteristics are guaranteed over specified supply, frequency and temperature range
ECL OPERATION
Supply voltage, VCC = 0V, VEE = 25·2V 6 0·25V
Temperature, TAMB = 255°C to 1125°C (A Grade), 230°C to 170°C (B Grade)
Characteristic
Maximum frequency (sinewave input)
Minimum frequency (sinewave input)
Power supply current
ECL output high voltage
ECL output low voltage
PE input high voltage
PE input low voltage
Clock to ECL output delay
Set-up time
Release time
Symbol
fMAX
fMIN
IEE
VOH
VOL
VINH
VINL
tp
ts
tr
Value
Min.
Units
200
20·85
21·8
20·93
Conditions
Notes
Max.
40
21
20·7
21·5
21·62
9
3
8
MHz
MHz
mA
V
V
V
V
ns
ns
ns
Input = 400-800mV p-p
Input = 400-800mV p-p
VEE = 25·0V
VEE = 25·2V (25°C)
VEE = 25·2V (25°C)
VEE = 25·2V (25°C)
VEE = 25·2V (25°C)
5
5
5
6
3, 6
4, 6
TTL OPERATION
Supply voltage, VCC = 5V 6 0·25V, VEE = 0V
Temperature, TAMB = 255°C to 1125°C (A Grade), 230°C to 170°C (B Grade)
Characteristic
Maximum frequency (sinewave input)
Minimum frequency (sinewave input)
Power supply current
TTL output low voltage
TTL output high voltage
Clock to TTL output high delay,1ve going
Clock to TTL output low delay,2ve going
Set-up time
Release time
Symbol
fMAX
fMIN
IEE
VOL
VOH
tPLH
tPHL
ts
tr
Value
Min.
200
40
21
0·5
3·75
32
18
3
8
Units
Conditions
MHz
MHz
mA
V
V
ns
ns
ns
ns
Input = 400-800mV p-p
Input = 400-800mV p-p
VCC = 5·0V
VCC = 5V, RL = 560Ω
RL = 560Ω
RL = 560Ω
RL = 560Ω
Notes
Max.
5
5
5
5, 7
5, 7
6
6
3, 6
4, 6
NOTES
1. The temperature coefficients of VOH = 11·63mV/°C, VOL = 10·94mV/°C and of VIN = 11·22mV/°C.
2. The test configuration for dynamic testing is shown in Fig.8
3. The set-up time ts is defined as the minimum time that can elapse between L→H transition of control input and the next L→H clock pulse transition
to ensure that division by the lower modulus is obtained.
4. The release time tr is defined as the minimum time that can elapse between H→L transition of control input and the next L→H clock pulse transition
to ensure that division by the higher modulus is obtained.
5. SP8690/1B tested at 25°C only.
6. Guaranteed but not tested.
7. The open collector output is not recommended for use at output frequencies above 15MHz. CLOAD ≤ 5pF.
2
SP8690/SP8691
TRUTH TABLE FOR
CONTROL INPUTS
CLOCK INPUT
ts
tr
PE1
PE2
Division ratio
L
H
L
H
L
L
H
H
11
10
10
10
PE INPUTS
6
5
ECL AND TTL
OUTPUTS
5
5
Fig. 4 Timing diagram, SP8690
TRUTH TABLE FOR
CONTROL INPUTS
CLOCK INPUT
ts
tr
PE1
PE2
Division ratio
L
H
L
H
L
L
H
H
9
8
8
8
PE INPUTS
4
5
ECL AND TTL
OUTPUTS
4
4
Fig. 5 Timing diagram, SP8691
INPUT AMPLITUDE (mV p-p)
1200
1000
800
600
* Tested as specified
GUARANTEED *
OPERATING
WINDOW
1125°C
in table of Electrical
Characteristics
400
255°C
200
0
0
50
100
150
INPUT FREQUENCY (MHz)
200
250
Fig. 6 Typical input characteristics, SP8690/1
j1
j 0.5
j2
j 0.2
j5
0
0.2
0.5
1
5
2
50
100
2j 0.2
2j 5
150
200
2j 2
2j 0.5
2j 1
Fig. 7 Typical input impedance. Test conditions: Supply Voltage = 5.0V,
Ambient Temperature = 25°C. Frequencies in MHz, impedances normalised to 50Ω.
3
SP8690/SP8691
VCC
560
10n
11
5
16
INPUT FROM
GENERATOR
33
DUT
1
33
INPUT
MONITOR
Q4
10n
Q4
2
3
9
2·4k
0.1µ
450
0.1µ
0.1µ
450
8
OUTPUTS TO
SAMPLING
SCOPE
12
20
VEE
Fig. 8 Test circuit for dynamic measurements
VCC
1·5k
TTL
CONTROL INPUT
(SEE TRUTH TABLES,
FIGS. 4 AND 5)
10n
CLOCK
INPUT
3·6k
560
O/C
2
5
10k
16
10n
3
11
TTL
OUTPUT
1
10k
8
DIVIDE BY
10/11 (SP8690)
8/9 (SP8691)
9
91
ECL10K
OUTPUT
68k
3k
BIAS
3k
3k
3k
8
VEE
Fig. 9 Typical application showing interfacing.
OPERATING NOTES
1. The clock inputs can be single or differentially driven. The
clock input is biased internally and is coupled to the signal
source with a suitable capacitor. The input signal path is
completed by an input reference decoupling capacitor which
is connected to ground.
2. In the absence of a signal the device will self-oscillate. If
this is undesirable, it may be prevented by connecting a
68kΩ resistor from the input to V EE i.e., from pin 1 or pin 16
to pin 12. This reduces the input sensitiviy by approximately
100mV.
3. The circuit will operate down to DC but slew rate must be
better than 100V/µs.
4. The Q 4 and Q4 outputs are compatible with ECLII but can
be interfaced to ECL10K as shown in Fig. 9.
4
5. The PE inputs are ECLIII/10K compatible and include
internal 10kΩ pulldown resistors. Unused inputs can therefore
be left open circuit.
6. The input impedance of the SP8690/1 varies as a function
of frequency. See Fig. 7.
7. The TTL/CMOS output is a free collector and the high
state output voltage will depend on the supply that the
collector load is taken to. This should not exceed 12V.
8. The rise/fall time of the open collector output waveform is
directly proportional to load capacitance and load resistor
value. Therefore, load capacitance should be minimised
and the load resistor kept to a minimum consistent with
system power requirements. In the test configuration of Fig.
8 the output rise time is approximately 10ns and the fall time
SP8690/SP8691
NOTES
5
SP8690/SP8691
PACKAGE DETAILS
Dimensions are shown thus: mm (in).
1
PIN 1 REF
NOTCH
5·59/7·87
(0·220/0·310)
7·62 (0·3)
NOM CTRS
16
1·14/1·65
(0·045/0·065)
0·20/0·36
(0·008/0·014)
20·32 (0·800)
MAX
SEATING PLANE
5·08/(0·20)
MAX
0·36/0·58
(0·014/0·23)
0·51 (0·02) 3·18/4·06
MIN
(0·125/0·160)
16 LEADS AT 2·54 (0·10)
NOM. SPACING
NOTES
1. Controlling dimensions are inches.
2. This package outline diagram is for guidance
only. Please contact your GPS Customer
Service Centre for further information.
16-LEAD CERAMIC DIL – DG16
HEADQUARTERS OPERATIONS
GEC PLESSEY SEMICONDUCTORS
Cheney Manor, Swindon,
Wiltshire SN2 2QW, United Kingdom.
Tel: (0793) 518000
Fax: (0793) 518411
GEC PLESSEY SEMICONDUCTORS
P.O. Box 660017
1500 Green Hills Road,
Scotts Valley, CA95067-0017
United States of America.
Tel (408) 438 2900
Fax: (408) 438 5576
CUSTOMER SERVICE CENTRES
● FRANCE & BENELUX Les Ulis Cedex Tel: (1) 64 46 23 45 Fax : (1) 64 46 06 07
● GERMANY Munich Tel: (089) 3609 06-0 Fax : (089) 3609 06-55
● ITALY Milan Tel: (02) 66040867 Fax: (02) 66040993
● JAPAN Tokyo Tel: (3) 5276-5501 Fax: (3) 5276-5510
● NORTH AMERICA Scotts Valley, USA Tel: (408) 438 2900 Fax: (408) 438 7023.
● SOUTH EAST ASIA Singapore Tel: (65) 3827708 Fax: (65) 3828872
● SWEDEN Stockholm Tel: 46 8 702 97 70 Fax: 46 8 640 47 36
● UK, EIRE, DENMARK, FINLAND & NORWAY
Swindon Tel: (0793) 518510 Fax : (0793) 518582
These are supported by Agents and Distributors in major countries world-wide.
© GEC Plessey Semiconductors 1994 Publication No. DS3647 Issue No. 1.2 March 1994
This publication is issued to provide information only which (unless agreed by the Company 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. No warranty or guarantee express or implied is made regarding the capability, performance or suitability of any product or service. The Company
reserves the right to alter without prior knowledge the specification, design or price 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. 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 the Company's conditions of sale, which are available on request.
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