NTE NTE1208 Datasheet

NTE1208

Integrated Circuit

CMOS, Phase Comparator

Description:

The NTE1208 is an integrated circuit in a 9–Lead SIP type package consisting of a digital phase
comparator and an amplifier . Three state output connected to low pass filter (using an internal amplifi­er) will produce DC voltage to control a VCO.

Low state pulses appear on phase out as long as the loop is unlocked and these can be utilized as
lock indicator.

Absolute Maximum Ratings:

(TA = +25°C unless otherwise speciied)

Supply Voltage, VDD 10V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input Voltage, V
Operating Temperature Range, T
Storage Temperature Range, T

Electrical Characteristics:

Parameter Symbol Test Conditions Min Typ Max Unit

Operating Supply Voltage V
Output Voltage, “H” Level V
Output Voltage, “L” Level V
Quiescent Current I
3 State Leakage Current I

Filter Amp Voltage Gain A

–0.3V to VDD+0.3V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

IN

–30° to +75°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

opr

–55° to +125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

stg

(TA = –35° to +75°C, VDD = 7.5V unless otherwise speciied)

DD

VIL = 1.6V, VIH = 6.6V, IOH = –50µA

VIH = 7.5V, VIL = 0V – – 200 µA

R

V

= 1MΩ, fIN = 1kHz, Rg = 600Ω – 3.0 – dB

1–2

DD

TLH

I

TLL

OH
OL

4.5 – 8.0 V

7.3 – – V
– – 0.2 V

– – 500 nA
– – –500 nA

Pin Connection Diagram

(Front View)

GND

9

R

8

S

7

N.C.

6
5

V

Phase Output

4
3

PD

2

A

1

A

DD

OUT
IN
OUT

.323

(8.2)

Max

.906 (23.0) Max.126 (3.2)

.099

19

(2.5)

Min

.020 (0.50).100 (2.54)

.800 (20.3)