NTE1691 Ver la hoja de datos (PDF) - NTE Electronics

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Fabricante

NTE1691

Integrated Circuit Telephone Pulse Dialer w/Redial

NTE Electronics 

DC Electrical Characteristics: (TA = +25°C, Note 1 unless otherwise specified)

Parameter

Symbol

Test Conditions

Min Typ

Max Unit

Supply Voltage

Key Contact Resistance

VCC

RKI Note 2

2.5

–

6.0

V

–

–

1

kΩ

Keyboard Capacitance

Key Input Voltage

Key Pull–Up Resistance

Key Pull–Down Resistance

Mute Sink Current

Pulse Output Sink Current

Tone Output Sink Current

Tone Output Source Current

Memory Retention Current

Operating Current

Mute or Pulse Off Leakage

VREF Output Source Current

CKI

KIH

KIL

KIRU

KIRD

IM

IP

ITL

ITH

IMR

IOP

ILKG

IREF

Note 2

2 of 7 input mode, Note 2

VCC = 6V

VIN = 4.8V

VCC = 2.5V, VO = 500mV, Note 3

VCC = 2.5V, VO = 500mV, Note 4

VCC = 2.5V, VO = 500mV, Note 5

VCC = 2.5V, VO = 500mV, Note 5

All outputs under no load, Note 7

All outputs under no load

VCC = 6V, VO = 6V, Note 3, Note 4

Note 6

–

–

30

pF

0.8VCC –

VCC

V

GND

– 0.2VCC V

–

100

–

kΩ

–

4.0

–

kΩ

500

–

–

µA

1.0

–

–

mA

250

–

–

µA

250

–

–

µA

–

0.7

–

µA

–

100 150 µA

– 0.001 1.0 µA

1.0 7.0

–

mA

Note 1. Typical values are to be used as a design aid and are not subject to production testing.

Note 2. Applies to key input pin (R1–R4, C1–C3).

Note 3. Applies to MUTE output pin.

Note 4. Applies to PULSE output pin.

Note 5. Applies to TONE pin (NTE1692 only).

Note 6. Applies to VREF pin (NTE1691 only).

Note 7. Current necessary for memory to be maintained. All outputs unloaded.

AC Electrical Characteristics: (TA = +25°C, unless otherwise specified)

Parameter

Symbol

Test Conditions

Min Typ Max Unit

Oscillator Frequency

Key Input Debounce Time

Key Down Time for Valid Entry

Key Down Time During Two–Key Roll Over

Oscillator Start–Up Time

Mute Valid After Last Outpulses

Pulse Output Pulse Rate

On–Hook Time Required to Clear Memory

Pre–Digital Pause

Inter–Digital Pause

Frequency Stability

Tone Output Frequency

FOSC

TDB

TKD

tKR

tos

tMO

PR

tOH

TPDP

TIDP

∆f

FTONE

Note 8

Note 10, Note 11

Note 11, Note 12

Note 11

VCC = 2.5V

Note 10, Note 11

Note 9

Note 11

Note 10, Note 11

Note 10, Note 11

VCC = 2.5 to 3.5V

VCC = 2.5 to 6.0V

Note 11, Note 13

–

4

–

10

40

–

5

–

–

1

–

5

–

10

300

–

–

800

–

800

–

±4

–

±4

–

1

–

kHz

–

ms

–

ms

–

ms

–

ms

–

ms

– PPS

–

ms

–

ms

–

ms

–

%

–

%

–

kHz

Note 8. RS = 2MΩ, R = 220kΩ, C = 390pF.

Note 9. If Pin10 is tied to VCC, the output pulse rate will be 20pps.

Note10. If the 20pps option is selected, the time will be 1/2 these shown.

Note 11. These times are directly proportional to the oscillator frequency.

Note12. Debounce plus oscillator start–up time ≤ 40ms.

Note13. If the 20pps option is selected, the tone output frequency will be 2kHz (NTE1692 only).

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