ADVANCE INFORMATION
DS3650-1·2
SP8720
300MHz43/4
4
The SP8720 is an ECL two-modulus divider, with ECL10K
compatible outputs. It divides by 3 when either of the ECL control
inputs, PE1 or PE2, is in the high state and by 4 when both are low
(or open circuit). An AC coupled input of 600mVp-p is required.
CLOCK INPUT
CONTROL
PE1
INPUTS
PE2
NC
V
CC
NC
NC
OUTPUT
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
INTERNAL BIAS DECOUPLING
NC
NC
NC
V
EE
DO NOT CONNECT
NC
OUTPUT
FEATURES
s
ECL Compatible Outputs
s
AC-Coupled Input (Internal Bias)
s
Control Inputs ECL III/10K Compatible
QUICK REFERENCE DATA
s
Supply Voltage:
25·2V
SP8720
9
s
Power Consumption: 240mW
s
Temperature Range:
255°C
to
1125°C
(A Grade)
230°C
to
170°C
(B Grade)
DG16
Fig. 1 Pin connections - top view
ABSOLUTE MAXIMUM RATINGS
Supply voltage
Output current
Storage temperature range
Max. junction temperature
Max. clock input voltage
28V
20mA
265°C
to
1150°C
1175°C
2·5V p-p
ORDERING INFORMATION
SP8720 A DG
SP8720 B DG
5962-90577 (SMD)
V
CC
(0V)
5
PE1
PE2
2
3
D1
Q1
D2
Q2
Q2
8
OUTPUT
9
CK
CLOCK INPUT
1
CK
OUTPUT
16
INTERNAL BIAS
DECOUPLING
12
V
EE
Fig. 2 Functional diagram
GEC [ GENERAL ELECTRIC COMPANY ]
