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參數(shù)資料
| 型號： | HM9270C |
| 廠商： | ELAN Microelctronics Corp . |
| 英文描述： | DTMF Receiver(集成了濾波器和數(shù)字譯碼器功能的雙音多頻（DTMF）接收器) |
| 中文描述： | 雙音多頻接收器（集成了濾波器和數(shù)字譯碼器功能的雙音多頻（DTMF）的接收器） |
| 文件頁數(shù)： | 3/10頁 |
| 文件大?。?/td> | 57K |
| 代理商： | HM9270C |
DTMF RECEIVER
HM 9270C/D
— 3 —
Pin Sym.
Function
11
12
13
14
Q1
Q2
Q3
Q4
15
StD
16
ESt
17
St/GT
18
V
DD
3-state data outputs. When enabled by TOE, provide the code corresponding to the
last valid tone-pair received (see code table).
Delayed steering output. Presents a logic high when a received tone-pair has been
registered and the output latch updated; returns to logic low when the voltage on St/
GT falls below V
TSt
.
Early steering output. Presents a logic high immediately when the digital algorithm
detects a recognizable tone-pair (signal condition). Any momentary loss of signal
condition will cause ESt to return to a logic low.
Steering input/guard time output (bi-directional). A voltage greater than V
detected
at St causes the device to register the detected tone-pair and update the output latch.
A voltage less than V
frees the device to accept a new tone-pair. The GT output
acts to reset the external steering time-constant; its state is a function of ESt and the
voltage on St (see truth table).
Positive power supply, +5Volts.
DC Electrical Characteristics
Parameter Description
SUPPLY:
V
DD
Operating Supply Voltage
I
cc
Operating Supply Current
P
o
Power Consumption
I
S
Standby Current
INPUTS:
V
IL
V
IH
I
IH
/I
IL
I
so
R
IN
Low Level Input Voltage
High Level Input Voltage
Input Leakage Current
Pull Up (Source) Current
Input Signal
Impedance Inputs 1,2
Steering Threshold Voltage
V
TSt
Test Conditions
Min. Typ. Max. Units
4.75
5.25
7
35
100
V
mA
mW
μ
A
3.0
15
-
f=3.579MHz; V
DD
=5V
PWDN pin = V
DD
-
1.5
V
V
uA
uA
M
3.5
V
=V
or V
TOE (Pin 10)=OV
@ 1kHz
0.1
7.5
10
15
2.35
V
Parameters
Min.
Max.
Units
Power Supply Voltage, V
DD
- V
SS
Voltage on any pin
Current at any pin
Operating temperature
Storage temperature
Package power dissipation
Note
1. Absolute maximum ratings are those values beyond which damage to the device may
occur.
2. Unless otherwise specified, all voltages are referenced to ground.
3. Power dissipation temperature derating: -12
mV
/
°
C
from 65
°
C to 85
°
C
6
V
DD
+ 0.3
10
+85
+150
500
V
V
mA
°
C
°
C
mW
V
SS
- 0.3
-40
-65
Absolute Maximum Ratings
(Notes 1, 2 and 3)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HM9270D | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:DTMF RECEIVER |
| HM92M | 制造商:HSMC 制造商全稱:HSMC 功能描述:PNP EPITAXIAL PLANAR TRANSISTOR |
| HM94 | 制造商:HSMC 制造商全稱:HSMC 功能描述:PNP EPITAXIAL PLANAR TRANSISTOR |
| HM965 | 制造商:HSMC 制造商全稱:HSMC 功能描述:NPN EPITAXIAL PLANAR TRANSISTOR |
| HM9-6516BB6129 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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