U833BS / U833BSE
TELEFUNKEN Semiconductors
Rev. A1, 05-Sep-96
1 (7)
1.3-GHz Prescaler for PLLs in TV, CATV and SAT TV Tuners
Technology: Bipolar
Features
D U833BS ECL output stage
D U833BSE emitter follower output stage
D 3 scaling factors 64/128/256 programmable at Pin 5
D High input sensitivity
D Low output impedance
D Low power consumption
D Pin-compatible to the U6xxB series except Pin 5
D Electrostatic protection according to MIL-STD. 883
Case
8-pin dual-inline plastic
(U833BS, U833BSE)
8-pin SO plastic
(U833BS-FP, U833BSE-FP)
6-pin SIP plastic
(U833BS-SP, U833BSE-SP)
Absolute Maximum Ratings
Reference point Pin 4 (1)
Parameters
Symbol
Value
Unit
Supply voltage
Pin 8 (4)
V
S
6
V
Input-voltage range
Pin 2, 3, 5 (2, 5, 6)
V
i
0 to V
S
V
Junction temperature
T
j
125
C
Storage-temperature range
T
stg
40 to +125
C
Ambient-temperature range
T
amb
25 to +70
C
Maximum Thermal Resistance
Parameters
Symbol
Maximum
Unit
Junction ambient
DIP8
R
thJA
100
K/W
SIP6
R
thJA
100
K/W
SO8
R
thJA
175
K/W
Note:
The device is self-oscillating without input signal
U833BS / U833BSE
TELEFUNKEN Semiconductors
Rev. A1, 05-Sep-96
2 (7)
Block Diagram
Figure 1.
Pin Connection (DIP8, SO8)
Pin
Function
1
Not connected
2, 3
Input
4
Ground
5
Switch 64/128/256
6, 7
Output
8
V
S
Pin Connection (DIP8, SO8)
Pin
Function
1
Ground
2
Switch 64/128/256
3
Output
4
V
S
5, 6
Input
Note:
Pin numbers without brackets apply to DIP8 and SO8 package,
Pin numbers with brackets to SIP6
RMS voltage calculated from the available power measured
U833BS / U833BSE
TELEFUNKEN Semiconductors
Rev. A1, 05-Sep-96
3 (7)
Electrical Characteristics
V
S
= 4.5 to 5.5 V
,
T
amb
= 0 to +70
C, referred to test circuit, unless otherwise specified
Parameters
Test Conditions / Pin
Symbol
Min
Typ
Max
Unit
Supply current
1)
V
S
= 5 V
Pin 8 (4)
I
S
40
50
mA
Input sensitivity
2)
R
G
= 50
W
f
i
= 70 to 1000 MHz
Pin 2, 3 (5,
6)
V
i
10
mV
f
i
= 1000 to 1300 MHz
Pin 2, 3 (5,
6)
V
i
20
mV
Large-signal compatibility
R
G
= 50
W
Pin 2, 3 (5,
6)
V
i
300
mV
Frequency range
f
imin
70
MHz
f
imax
1300
MHz
Output stage
a. Balanced ECL output
Voltage swing each
output
R
L
= 10 k//13 pF
Pin 6, 7 (3)
V
O
0.8
V
pp
Output impedance
Pin 6, 7 (3)
Z
O
500
W
b. Emitter follower
Voltage swing each
output
R
L
= 10 k//13 pF
Pin 6, 7 (3)
V
O
1
V
pp
Output impedance
Pin 6, 7 (3)
Z
O
200
W
Switching voltage for
./. 64
Pin 5 (2)
V
SF
open
./. 128
Pin 5 (2)
V
SF
V
S
0.5
V
./. 256
Pin 5 (2)
V
SF
0
0.5
V
U833BS / U833BSE
TELEFUNKEN Semiconductors
Rev. A1, 05-Sep-96
4 (7)
Test Circuits
Figure 2.
Figure 3.
U833BS / U833BSE
TELEFUNKEN Semiconductors
Rev. A1, 05-Sep-96
5 (7)
Output Circuits
Figure 4.
Figure 5.
PDF 
ZIP