HT9020B データシートの表示（PDF） - Holtek Semiconductor

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HT9020B

Call Progress Tone Decoder & ABR Controller

Holtek Semiconductor 

HT9020

Absolute Maximum Ratings*

Supply Voltage ............................... –0.3V to 6V

Input Voltage ............... VSS–0.3V to VDD+0.3V

Storage Temperature................. –55°C to 150°C

Operating Temperature .............. –20°C to 75°C

*Note: These are stress ratings only. Stresses exceeding the range specified under “Absolute Maxi-

mum Ratings” may cause substantial damage to the device. Functional operation of this

device at other conditions beyond those listed in the specification is not implied and prolonged

exposure to extreme conditions may affect device reliability.

Electrical Characteristics

Symbol

Parameter

Test Conditions

VDD

Conditions

VDD

Operating Voltage

CPT mode

—

ABR mode

IDD

Operating Current

5V Functions enabled

2.5V No load

ISTB

Standby Current

2.5V

Functions disabled or

EN=1

GDV

Detection Level

5V fIN=305~640Hz

2.5V ENV=1

GRL

Rejection Level

— All frequency, ENV=0

fRL

Rejection Out-band

fRH

Frequency

— V≤ 0 dBm, ENV=0

tDD

Detection Signal Time

—

In-band signal input,

ENV=1

tRD

Rejection Noise Time

—

Any signal input,

ENV=0

tDH

Envelope Output

tDL

Delay Time

—

Time to output high

Time to output low

tDV

Data Valid Output Time — Time to output high/low

tSU

Data Setup Time

—

—

tI

Interval Time

— Internal signal

tIP

Interval Pause Time

— Internal signal

tCL

Clear Time

—

—

tST

OSC Start Up Time

—

—

ZI

Input Impedance

— fIN=200~3.4kHz

VREF Reference Voltage

— No load

Min. Typ. Max. Unit

2.5 — 5.5 V

2.0 — 5.5 V

— — 2 mA

— — 0.8 mA

— — 1 µA

–36 — 0 dBm

–42 — –8 dBm

— — –50 dBm

—

800

—

200

—

Hz

40 — — ms

— — 20 ms

— 40 — ms

1.05 1.16 1.2 sec

3

4

5 ms

— 2.32 — sec

8

— ms

— 250 — ns

— 0.8 2 sec

1.0 — — MΩ

2.4 2.5 2.6 V

5

21st Aug ’98

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