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Treasure Link Technology

TL2272-97 Datasheet Preview

TL2272-97 Datasheet

Decoder

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Treasure Link Technology Ltd.
兆通科技有限公司
TL2272-97
TL2272-97 38 Decoder with Direct Setting Doorbell
GENERAL DESCRIPTION
The main application area for the TL2272-97 device is for remote control doorbells working together with
TL2262. Containing all the functions of the TL2272 decoder and melody generator, the device eliminates the
need for customers to incorporate an external op-amp and melody generator IC within their product
applications, in the process significantly reducing overall product costs. In addition to being fully compatible
with the TL2272 circuitry, the device includes the following features; Internal 2 channel tone generator and
current type audio output.
FEATURES
Operating voltage: 2.4V~5.0V
2 channel dual tone generator
On chip RC oscillator
Current type D/A output
TL2262 encoder pair with
Provided direct key setting audio output
Tone optional :
1. Ding-Dong Ding-Dong
2. Ding-Ding Ding-Ding
3. Westminster Tunes
4. For Alice
18-pin DIP package
BLOCK DIAGRAM
OSC1
OSC2
Oscillator
SI
TG
SW1
SW2
SW3
Buffer
Key
Input
Divider
Comparat
Address
Tone
Control
AUD
TEST
VDD
VSS
OPT
TEST 1
A1 -------- A7
* All specs and applications shown above subject to change without prior notice.
( 以上電路及規格僅供參考,本公司得逕行修正)
Ver 2.02 Page 1 of 4




Treasure Link Technology

TL2272-97 Datasheet Preview

TL2272-97 Datasheet

Decoder

No Preview Available !

PIN ASSIGNMENT
Treasure Link Technology Ltd.
兆通科技有限公司
TL2272-97
A0
A1
A2
A3
A4
A5
A6
A7
VSS
TL2272-97
1 18
2 17
3 16
4 15
5 14
6 13
7 12
8 11
9 10
VDD
OSC2
OSC1
SI
AUD
SW3
SW2
SW1
TG
PIN DESCRIPTION
Pin No.
1~8
9
10
11~13
14
15
16
17
18
Pin Name
A0~A7
VSS
TG
SW1~SW3
AUD
SI
OSC1
OSC2
VDD
I/O Description
I Address pin
- Negative power supply
I Trigger pin
I Tone out setting pin
O Audio output
I Serial data input
I Oscillator input pin
O Oscillator output pin
- Positive power supply
DC CHARACTERICS
VDD=4.5V, Fosc=80KHz, TA=25 OC (unless otherwise noted.).
Symbol
Parameter
Min. Typ. Max.
VDD
ISTB
IDD
IAUD
VIH
VIL
FOSC
Temp.
Operating voltage
Standby current
Operating current
AUD output current
High input voltage
Low input voltage
Oscillator frequency
Operating temperature
2.4 -
-2
- 0.3
35
3.5 -
0-
- 80
0 25
5
-
1
-
5
1
-
60
Unit
V
uA
mA
mA
V
V
KHz
OC
Remark
Oscillator stop, @VDD=4.5V
No load , @VDD=4.5V
External Rosc 270K
* All specs and applications shown above subject to change without prior notice.
( 以上電路及規格僅供參考,本公司得逕行修正)
Ver 2.02 Page 2 of 4


Part Number TL2272-97
Description Decoder
Maker Treasure Link Technology
Total Page 4 Pages
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