NTE851 查看數據表（PDF） - NTE Electronics

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NTE851

Integrated Circuit VHF/UHF Prescaler

NTE Electronics 

Electrical Characteristics: (TA = +25°C, V+ = 5V, V– = 0 unless otherwise specified)

Parameter

Symbol

Test Conditions

Min Typ Max Unit

Supply Current

I+ Pin1 and Pin2

30 60 90 mA

UHF Bandswitch Input Voltage

VHF Bandswitch Input Voltage

UHF Bandswitch Input Current

VHF Bandswitch Input Current

UHF Sensitivity Level Input Voltage

VHF Sensitivity Level Input Voltage

Output Voltage

Output Voltage Rise and Fall Time

VBH High Level

2.4 –

VBL Low Level

–

–

IBH VBH = 20V

–

–

IBL VBL = 0

–

–

VIN(U) fIN = 450 to 950MHz, fOUT = fIN/256 –

–

VIN(V) fIN = 90 to 275MHz, fOUT = fIN/64

VO Pin4 or Pin5

0.65 1.0

tr, tf

– 70

–

V

0.8 V

0.5 mA

–1 mA

80 mVrms

mVrms

– VP–P

–

ns

Pin Connection Diagram

V(+) 1 1

V(+) 2 2

Bandswitch Input 3

Output 4

Output 5

N.C. 6

V(–) 1 7

14 VHF Input

13 VHF Input

12 N.C.

11 N.C.

10 UHF Output

9 UHF Output

8 V(–) 2

14

8

1

7

.785 (19.95)

Max

.200 (5.08)

Max

.300

(7.62)

.100 (2.45)

.600 (15.24)

.099 (2.5) Min

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