MC145436A

MOTOROLA

3

Rating

Symbol

Value

Unit

DC Supply Voltage

VDD

– 0.5 to + 6.0

V

Input Voltage, Any Pin Except Ain

Vin

– 0.5 to VDD + 0.5

V

Input Voltage, Ain

Vin

VDD – 10 to VDD + 0.5

V

DC Current Drain per Pin

I

± 10

mA

Power Dissipation

PD

100

mW

Operating Temperature Range

TA

– 40 to + 85

°C

Storage Temperature Range

Tstg

– 65 to + 150

°C

ELECTRICAL CHARACTERISTICS

(All Polarities Referenced to VSS = 0 V, VDD = 5.0 V ± 10%, TA = – 40 to + 85°C, Unless Otherwise Noted)

Parameter

Symbol

Min

Typ

Max

Unit

DC Supply Voltage

VDD

4.5

5

5.5

V

Supply Current (fCLK = 3.58 MHz)

IDD

—

5

8

mA

Input Current

GT

ENB, Xin, Xen

Iin

—

—

—

—

450

± 1

µA

Input Voltage Low

ENB, GT, Xen

VIL

—

—

1.5

V

Input Voltage High

ENB, GT, Xen

VIH

3.5

—

—

V

Iout Data and DV Pins: Vout = 4.5 V (Source)

IOH

800

—

—

µA

Iout Data and DV Pins: Vout = 0.4 V (Sink)

IOL

1.0

—

—

mA

Input Impedance

Ain

Rin

90

100

—

k

Ω

Fanout

ATB

Fout

—

—

10

Input Capacitance

Xen, ENB

Cin

—

6

—

pF

Parameter

Min

Typ

Max

Unit

Signal Level for Detection (Ain)

– 35

—

– 2

dBm

Twist = High Tone/Low Tone

– 10

—

10

dB

Frequency Detect Bandwidth

± (1.5 + 2 Hz)

± 2.5

± 3.5

% fO

60 Hz Tolerance

—

—

0.8

Vr ms

Dial Tone Tolerance (Note 1)

(Dial Tone 330 + 440)

—

—

0

dB

Noise Tolerance (Notes 1 and 2)

—

—

– 12

dB

Power Supply Noise (Wide Band)

—

—

10

mV p–p

Talk Off (Mitel Tape #CM7290)

—

2

—

Hits

NOTES:

1. Referenced to lower amplitude tone.

2. Bandwidth limited (0 to 3.4 kHz) Gaussian Noise.

This device contains circuitry to protect the

inputs against damage due to high static volt-

ages or electric fields; however, it is advised that

normal precautions be taken to avoid applica-

tions of any voltage higher than the maximum

rated voltages to this high impedance circuit.

For proper operation it is recommended that

Vin and Vout be constrained to the range VSS ≤

(Vin or Vout) ≤ VDD. Reliability of operation is

enhanced if unused inputs are tied to and

appropriate logic voltage level (e.g., either VSS

or VDD).