IN9270 datasheet(6/11 Pages) INTEGRAL | DTMF RECEIVER High-Performance Silicon-Gate CMOS

6 page

IN9270

OPERATING CHARACTERISTICS

Gain Setting Amplifier

Symbol

Parameter

Test Conditions

Typ

Unit

Input Leakage Current

GND< VIN < VCC

±100

RIN

Input Resistance

Ω

VOS

Input Offset Voltage

±25

PSRR

Power Supply Rejection

1 KHz

CMRR

Common Mode Rejection

-3.0 V < VIN < 3.0 V

AVOL

DC Open Loop Voltage Gain

Open Loop Unity Gain Bandwidth

1.5

MHz

Output Voltage Swing

RL ≥100 KΩ to GND

4.5

VPP

Tolerable Resistive Load (GS)

100

RL:

Tolerable Resistive Load (GS)

Ω

VCM

Common Mode Range

No Load

3.0

VPP

AC ELECTRICAL CHARACTERISTICS(All Voltages referenced to GND. V

CC = 5.0 V, GND =

0 V, TA = -10 to +70°C, FCLK = 3.579545 Mhz, using test circuit of Figure 5)

Parameter

Guaranteed Limits

Min

Typ

Max

Unit

Notes

SIGNAL CONDITION

Valid Input Signal

MIN

-29

dBm

1,2,3,5,6,9

Level (each tone of

27.5

m VRMS

1,2,3,5,6,9

composite signal)

MAX

dBm

1,2,3,5,6,9

883

m VRMS

NON-ACCEPT LEVEL

Freq. Deviation Accept Limit

±1.5%

±2 Hz

Nom.

2,3,5,9

Freq. Deviation Reject Limit

±3.5%

Nom.

2,3,5

Third Tone Tolerance

-2.5

2,3,4,5,7,9,10

Dial Tone Tolerance

+18

2,3,4,5,8,9,10

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