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BL1102A डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Tone / Pulse Dialer - Shanghai Belling

भाग संख्या BL1102A
समारोह Tone / Pulse Dialer
मैन्युफैक्चरर्स Shanghai Belling 
लोगो Shanghai Belling लोगो 
पूर्व दर्शन
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<?=BL1102A?> डेटा पत्रक पीडीएफ

BL1102A pdf
BL1102series
Tone/Pulse Dialer with Hand-free and lock functions
Known fromthe aboveblockdiagram,itmainlymadeupof systemclockgenerator,keyboardinterface,datacode,randomstoring,
read/writecounter, addresslockandstoring,systemcontrollogic,pulsegenerator,data/modeconverteranddoubletonegeneratorand
other circuits.
Pin Description
Symbol
Row/colum
n input
X T,X T
T/P MUTE
22 Pin
1-4,18-
22
6,7
8
24 Pin
1-4,20-
24
6,7
8
I/0
I
I/0
O
MODE 1 4 1 6
I
HKS 9 9 I
B/M 1 6 1 8 I
VDD , VSS
X MUTE
1 7, 5
13
19 , 5
15
I
O
HFI, HFO --
12 13 I/O
KT 12 14 O
I
LOCK
15 17
(BL1102L) (BL1102AL)
NC 15 17 I
(BL1102) (BL1102A)
Function
A valid key entry is defined by a single row being
connected to a single column
Oscillation I/O
The T/P MUTE is a conventional CMOS N-channel
open drain output. When dialing and flash, the output is
and will turn down the talking network.
Dialing mode selection.. When pin is connected
to VSS , it is double tone multi-frequency mode
when it is connected to VDD , it is pulse mode
(10ppS).
The pin is the hook switch input
HKS =1, on HOOK state, chip in sleeping mode,
no operation.
HKS =0, on HOOK state enable chip on normal
operation..
Break/make ratio, pin selection.
B/M=1, ratio is 60/40;
B/M=0, ratio is 66/33.
Power and power ground input
Inverter output. Dialing under double tone
mode, pin is high voltage if dialing under
pulse mode, the pin is low voltage.
Hands-free control details can be seen in
table2.
Key tone signal output. The frequency
is1.2KHz.
Once the pin is locked, dialing starting with
"0" or "9" and all the key input afterwards
will become invalid. It will recover the
original state after on hook..
LO C K Pin
V DD
floating
f
V
ti
SS
function
0 9 dialing lim it
norm al
0 dialing lim it
Not available
Address No.810, YiShan Road ShangHai China Tel 86-021-64850700 Fax 86-64852222 Zip.200233

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डाउनलोड[ BL1102A Datasheet.PDF ]


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अनुशंसा डेटापत्रक

भाग संख्याविवरणविनिर्माण
BL1102Tone / Pulse DialerShanghai Belling
Shanghai Belling
BL1102ATone / Pulse DialerShanghai Belling
Shanghai Belling


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