EM91465 查看數據表（PDF） - ELAN Microelectronics

零件编号

产品描述 (功能)

生产厂家

EM91465

TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION

ELAN Microelectronics 

EM91465 SERIES

TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE

AND I.P.P. DETECT FUNCTION

ABSOLUTE MAXIMUM RATINGS(Ambient temperature is 25 °C, all voltages referenced to VSS)

Items

Sym.

Rating

Unit

Power supply voltage

VDD

6.0 Vdc

V

Input voltage range

VIN

VSS-0.3V ~ VDD+0.3V

V

Operating temperature

TOPR

0 ~ 50

°C

Storage temperature

T

STO

-55 ~ 125

°C

Power consumption

PD

500

mW

DC ELECTRICAL CHARACTERISTICS

(Ambient temperature is 25 °C, VDD=2.5V unless otherwise noted, all voltages referenced to VSS, Fosc=3.579545 MHz)

Parameter

Sym. Min. Typ. Max. Unit Condition

Operating voltage

Operating current(HKS=0)

Memory retention current

Standby current

HKS, HFI & DRING

pins: input voltage

Xmute pin : Schmitt triggers

(input pin)

HFO & HDO pins source current

Pulse

Tone

Pulse

Tone

HKS=1

HKS=0

HKS=1

HKS=0

Idd

Imrt

Istby

ViH

ViL

VH-L

VL-H

IoH

2.0 -

2.0 -

- 0.15

- 0.3

--

--

-1

-

- 10

0.8VDD -

VSS

-

VSS

-

0.7VDD -

0.2 -

5.5 V

5.5

0.3 mA

0.5

0.1 uA

0.1

10 uA

0.1

30

VDD V

0.2VDD

0.3VDD V

VDD V

- mA

unload

with pull up/down

resistor * 8

HKS=1,Vdd=1V

unload

with pull up/down

resistor * 8

at idle state

Vo = 2.0 V

PO, HFO, XMUTE, RMUTE

IoL -0.2 -

- mA Vo = 0.5 V

& SDO pins: sink current

PO, XMUTE, RMUTE and SDO

IoH

- - 0.01 uA

Vo = Vdd

pins: leakage current

HFI pin input resistance

Rhfi

- 200

- KΩ

Vhfi = Vss

Keyboard scanning pins

IoH

2 10

50 uA

Vksn=Vss

output current (except COL4/KT)

IoL 200 400 800 µA

ksn=Vdd

COL4/KT source current

IoH 0.2 -

- mA Vo=2.0V

sink current

IoL 0.2 -

-

Vo=0.5V

DTMF pin: sink current

IoL -0.2 -

- mA Vdtmf = 0.5 V

DTMF signal DC level

Vdc 0.5 -

0.75 Vdd Vdd = 2.0V ~ 5.5V

DTMF signal: ac level

Vdtmf 142 160 180

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

pre-emphase

Twist 1 2

3

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

distortion

THD - -30 -23

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

load resistance

ZL

5-

-

Distortion(dB)=20 log

{[V 2+V 2+V 2 ..... +V 2)1/2]/[(V 2+V 2)1/2]}

1

2

3

n

L

H

VL, VH =ROW group and column group signal.

V1, V2, V3 .... Vn = Harmonic signal (BW=300Hz~3500Hz)

* This specification are subject to be changed without notice.

mVrms

dB

dB

KΩ

Row group

Column - Row

ZL = 5 KΩ

THD < − 23dB

9.24.1998 11

Share Link: