U833BS / U833BSE
Rev . A1, 08-Apr-99 1 (6)
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
Block Diagram
Figure 1. Block diagram
Ordering Information
Extended Type Number Package Remarks
U833BS, U833BSE 8-pin dual-inline plastic
U833BS-FP, U833BSE-FP 8-pin SO plastic
U833BS-SP, U833BSE-SP 6-pin SIP plastic
U833BS / U833BSE
Rev . A1, 08-Apr-992 (6)
Pin Connection (DIP8, SO8)
Pin Function
1Not connected
2, 3 Input
4 Ground
5Switch 64/128/256
6, 7 Output
8 VS
Pin Connection (SIP6)
Pin Function
1 Ground
2Switch 64/128/256
3 Output
4 VS
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
Absolute Maximum Ratings
Reference point Pin 4 (1)
Parameters Symbol Value Unit
Supply voltage Pin 8 (4) VS6 V
Input-voltage range Pin 2, 3, 5 (2, 5, 6) Vi0 to VSV
Junction temperature Tj125 °C
Storage-temperature range Tstg –40 to +125 °C
Ambient-temperature range Tamb –25 to +70 °C
Maximum Thermal Resistance
Parameters Symbol Maximum Unit
Junction ambient DIP8 RthJA 100 K/W
SIP6 RthJA 100 K/W
SO8 RthJA 175 K/W
Note:
The device is self-oscillating without input signal.
U833BS / U833BSE
Rev . A1, 08-Apr-99 3 (6)
Electrical Characteristics
VS = 4.5 to 5.5 V, Tamb = 0 to +70 °C, referred to test circuit, unless otherwise specified
Parameters Test Conditions / Pin Symbol Min Typ Max Unit
Supply current 1) VS = 5 V Pin 8 (4) IS40 50 mA
Input sensitivity 2) RG = 50
W
fi = 70 to 1000 MHz
Pin 2, 3 (5,
6) Vi10 mV
fi = 1000 to 1300 MHz
Pin 2, 3 (5,
6) Vi20 mV
Large-signal compatibility RG = 50
W
Pin 2, 3 (5,
6) Vi300 mV
Frequency range fimin 70 MHz
fimax 1300 MHz
Output stage
a. Balanced ECL output
Voltage swing each
output RL = 10 k//13 pF
Pin 6, 7 (3) VO0.8 Vpp
Output impedance Pin 6, 7 (3) ZO500
W
b. Emitter follower
Voltage swing each
output RL = 10 k//13 pF
Pin 6, 7 (3) VO1 Vpp
Output impedance Pin 6, 7 (3) ZO200
W
Switching voltage for ./. 64 Pin 5 (2) VSF open
./. 128 Pin 5 (2) VSF VS –0.5 V
./. 256 Pin 5 (2) VSF 00.5 V
Test Circuits
Figure 2. DIP8/ SO8 Figure 3. SIP6
U833BS / U833BSE
Rev . A1, 08-Apr-994 (6)
Output Circuits
Figure 4. ECL output (U833BS) Figure 5. Emitter follower output (U833BSE)
Package Information
13021
9.8
9.5
Package DIP8
Dimensions in mm
1.64
1.44
4.8 max
0.5 min 3.3
0.58
0.48
7.62
2.54
6.4 max
0.36 max
9.8
8.2
7.77
7.47
85
14
technical drawings
according to DIN
specifications
U833BS / U833BSE
Rev . A1, 08-Apr-99 5 (6)
Package Information
13034
technical drawings
according to DIN
specifications
Package SO8
Dimensions in mm 5.00
4.85
0.4
1.27 3.81
1.4
0.25
0.10
5.2
4.8
3.7
3.8
6.15
5.85
0.2
85
14
13024
technical drawings
according to DIN
specifications
15.3
15.0
Package SIP6
Dimensions in mm
6.3
6.1 8.3 max
3.2
1.65
3.3 max
0.35
0.25
0.65
0.50
0.65
2.54 1.54
0.25
12.7
U833BS / U833BSE
Rev . A1, 08-Apr-996 (6)
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ozone depleting substances (ODSs).
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