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U847BST

TEMIC Semiconductors
Part Number U847BST
Manufacturer TEMIC Semiconductors
Description 1.3-GHz Prescaler
Published Sep 24, 2005
Detailed Description www.DataSheet4U.com U847BST 1.3-GHz Prescaler for CATV Tuners Technology: Bipolar Features D TTL output D ESD protect...
Datasheet PDF File U847BST PDF File

U847BST
U847BST

Overview
www.
DataSheet4U.
com U847BST 1.
3-GHz Prescaler for CATV Tuners Technology: Bipolar Features D TTL output D ESD protected D Low current consumption D High input sensitivity D Slope steepness of the output level adjustable at Pin 6 Case: 8-pin dual-inline plastic Block Diagram VS 3 N.
C.
4 Symmetrical Input 256 8 Output TTL 5 6 7 N.
C.
88 6307 e Figure 1.
Block diagram TELEFUNKEN Semiconductors Rev.
A1, 05-Sep-96 1 (5) www.
DataSheet4U.
com U847BST Absolute Maximum Ratings Parameters Supply voltage Input-voltage range Junction temperature Storage-temperature range Ambient-temperature range Pin 4 Pins 1 and 2 Symbol VS Vi Tj Tstg Tamb Value 6 0 to VS 125 –40 to +125 –25 to +70 Unit V V °C °C °C Thermal Resistance Parameters Junction ambient Symbol RthJA Maximum 100 Unit K/W Pin Connection Pin 1, 2 4 5 Note: In order to avoid damage, the prescaler must be handled as a MOS device.
The device is self-oscillating without input signal.
Function Input Supply voltage (VS) Output Pin 6 8 3, 7 Function Open or capacitor-to-ground Ground Not connected Electrical Characteristics VS = 4.
5 to 5.
5 V, Tamb = 0 to +70 °C, unless otherwise specified Parameters Supply current Input sensitivity 1) Test Conditions / Pin VS = 5 V Pin 4 RG = 50 W, fi = 70 MHz Pins 1 and 2 fi = 150 to 1000 MHz fi = 1300 MHz RG = 50 W Pins 1 and 2 Symbol IS Vi Vi Vi Vi fimin fimax Pin 5 IOH = 0.
2 mA IOL = –2 mA VOH VOL 3.
3 0.
4 V V Min.
Typ.
35 6 1 4 300 70 1300 Max.
48 10 5 20 Unit mA mV mV mV mV MHz MHz Large-signal compatibility 1) Frequency q y range g TTL output High level Low level 1) RMS voltage calculated from the available power measured 2 (5) TELEFUNKEN Semiconductors Rev.
A1, 05-Sep-96 www.
DataSheet4U.
com U847BST Figure 2.
Test circuit Figure 3.
TTL output circuit TELEFUNKEN Semiconductors Rev.
A1, 05-Sep-96 3 (5) www.
DataSheet4U.
com U847BST Dimensions in mm Package: DIP8 4 (5) TELEFUNKEN Semiconductors Rev.
A1, 05-Sep-96 www.
DataSheet4U.
com U847BST Ozone Depl...


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