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參數(shù)資料
| 型號： | EM92012 |
| 廠商： | ELAN Microelctronics Corp . |
| 英文描述： | 10 Channel Cordless Phone Controller with Handset LCD Display and Handfree Function(10通道無繩電話控制器（帶手機LCD顯示和免提功能）) |
| 中文描述： | 10頻道無繩電話控制器）與液晶顯示器和手機免提功能（10通道無繩電話控制器（帶手機液晶顯示和免提功能） |
| 文件頁數(shù)： | 8/23頁 |
| 文件大?。?/td> | 178K |
| 代理商： | EM92012 |
* This specification are subject to be changed without notice.
EM92012/EM92013
10-CHANNEL CORDLESS PHONE CONTROLLER WITH
HANDSET LCD DISPLAY AND HANDFREE FUNCTION
8
5.18.1998
Symbol
I/O
Active
Function
pressed. For handset dialing and speed dialing, the DTMF signal complies
with minimum tone duration (100ms) and minimum inter-tone pause
(100ms).
Telephone line connection output.
It outputs high to drive a relay for loop connection. It also outputs pulse
dialing or flash (line break) signals.
DTMF and pulse dialing signal mute output.
The XMUTE pin executes the transmission mute of the DTMF and pulse
signal dialing out.
Handset in-use audio signal switch output.
To turn on the audio path for handset line where in-use.
Base speakerphone audio signal switch output.
To turn on the audio path for base unit making or receiving a call.
Intercom audio signal switch output.
To turn on the audio path for intercom between handset and base unit.
Line hold output for music control.
The HDO outputs high when line is hold. It may also be used to control
a music generator while line holding.
Line hold release trigger input.
This cordless phone allows the releasing of line hold function by the
extension (parallel) telephone sets. A minimum of 60ms low pulse to this
pin is required to ensure that the extension telephone set is picked up. It
requires extra circuitry to sense the line voltage dropping, which caused
by picking up the extension telephone sets, and couples this signal for
more than 60ms to /HDR input.
Speaker amplifier power control output.
Output low to enable the power for speaker amplifier.
Microphone amplifier power control output.
Output low to enable the power for microphone amplifier. It is also used
to execute microphone mute function.
Power down detection input.
The /PWDN pin provides the system power down detection for data
protection such as telephone number, ID code, etc. Once a failure in
system power, a low level signal must be detected as soon as possible by
this pin to force the controller into “sleep” (idle) mode that reduces the
power consumption to power back up circuit.
Ringing signal envelope detection input.
It detects the envelope of of incoming ring whether a ring is present or not.
In normal no ringing condition, a high level signal input to this pin. If line
ringing happens, input low for ring-on and input high for ring-off.
It should be grounded.
This pin is reserved for IC fabrication test purpose. It must be connected
to V
SS
.
RLY
O
H
(P.P.)
XMUTE
O
H
(P.P.)
HS
O
H
(P.P.)
O
(P.P.)
O
(P.P.)
O
(P.P.)
SPK
H
INT
H
HDO
H
/HDR
I
L
/SPKPWR
O
L
(O.D.)
O
(O.D.)
/MICPWR
L
/PWDN
I
L
/RSD
I
L
N.C.
TEST
-
I
-
-
NOTE :
1. If /ENLCD and SDO pins are not used, a pull-up resistor of 470k ohms must be connected to EM92010
V
to avoid floating.
P.P. : Push pull
O.D. : Open drain, implies a pull up resistor is required.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| EM92013 | 10 Channel Cordless Phone Controller with Handset LCD Display and Handfree Function(10通道無繩電話控制器（帶手機LCD顯示和免提功能）) |
| EM92100(中文) | 10 Channel Auto Scan Cordless Phone Controller with LCD Display(10通道自動掃描無繩電話控制器（帶LCD顯示）) |
| EM92101(中文) | 10 Channel Auto Scan Cordless Phone Controller with LCD Display(10通道自動掃描無繩電話控制器（帶LCD顯示）) |
| EM92100 | 10 Channel Auto Scan Cordless Phone Controller with LCD Display(10通道自動掃描無繩電話控制器（帶LCD顯示）) |
| EM92101 | 10 Channel Auto Scan Cordless Phone Controller with LCD Display(10通道自動掃描無繩電話控制器（帶LCD顯示）) |
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