74HC7046A 데이터 시트보기 (PDF) - Philips Electronics

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74HC7046A

Phase-locked-loop with lock detector

Philips Electronics 

Philips Semiconductors

Phase-locked-loop with lock detector

Product specification

74HC/HCT7046A

Demodulator section

Voltages are referenced to GND (ground = 0 V)

Tamb (°C)

TEST CONDITIONS

SYMBOL

PARAMETER

74HCT

+25

−40 to +85

−40 to +125

UNIT VCC

(V)

min. typ. max. min. max. min. max.

OTHER

RS

resistor range

50

300

VOFF

offset voltage

±20

VCOIN to VDEMOUT

kΩ 4.5 at RS > 300 kΩ the

leakage current can

influence VDEMOUT

mV 4.5 VI = VVCOIN = 1/2

VCC; values taken

over RS range;

see Fig.13

RD

dynamic output

25

resistance at DEMOUT

Ω

4.5 VDEMOUT = 1/2 VCC

AC CHARACTERISTICS FOR 74HCT

Phase comparator section

GND = 0 V; tr = tf = 6 ns; CL = 50 pF

SYMBOL PARAMETER

tPHL/ tPLH

tPZH/ tPZL

tPHZ/ tPLZ

tTHL/ tTLH

propagation delay

SIGIN, COMPIN

to PC1OUT

3-state output enable

time SIGIN, COMPIN

to PC2OUT

3-state output disable

time SIGIN, COMPIN

to PC2OUT

output transition time

Tamb (°C)

TEST

CONDITIONS

74HCT

UNIT

+25

−40 to +85 −40 to +125

VCC

(V)

min. typ. max. min. max. min. max.

OTHER

21 40

50

60 ns 4.5 Fig.14

27 56

70

84 ns 4.5 Fig.15

35 65

81

98 ns 4.5 Fig.15

7 15

19

22 ns 4.5 Fig.14

VI(p-p)

AC coupled input sensitivity

15

(peak-to-peak value) at

SIGIN or COMPIN

mV 4.5

fi =

1 MHz

December 1990

18

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