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Treasure Link Technology

TL2272-96 Datasheet Preview

TL2272-96 Datasheet

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Treasure Link Technology Ltd.
TL2272-96
TL2272-96 38 Decoder with One-key Selection Doorbell
GENERAL DESCRIPTION
The main application area for the TL2272-96 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
1. Operating voltage: 2.4V~5.0V
2. 2 channel dual tone generator
3. On chip RC oscillator
4. Current type D/A output
5. TL2262 encoder pair with
6. Provided one-key sequential selection audio output
7. Tone optional :
1. Ding-Dong Ding-Dong
2. Ding-Ding Ding-Ding
3. Westminster Tunes
4. For Alice
8. 16-pin DIP package
BLOCK DIAGRAM
OSC1
OSC2
Oscillator
SI
MOD
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.
( ,)
Ver 1.01 Page 1 of 3




Treasure Link Technology

TL2272-96 Datasheet Preview

TL2272-96 Datasheet

Decoder

No Preview Available !

Treasure Link Technology Ltd.
PIN ASSIGNMENT
TL2272-96
A0
A1
A2
A3
A4
A5
A6
A7
VSS
TL2272-96
1 18
2 17
3 16
4 15
5 14
6 13
7 12
8 11
9 10
VDD
TEST1
OSC2
OSC1
SI
AUD
TEST
N.C.
MOD
PIN DESCRIPTION
Pin No.
1~8
9
10
11
12
13
14
15
16
17
18
Pin Name
A0~A7
VSS
MOD
N.C.
TEST
AUD
SI
OSC1
OSC2
TEST1
VDD
I/O Description
I Address pin
- Negative power supply
I Sequential selection audio output
- No connect
I Test pin
O Audio output
I Serial data input
I Oscillator input pin
O Oscillator output pin
I Test pin
- Positive power supply
DC CHARACTERICS
VDD=4.5V, Fosc=80KHz, TA=25 OC (unless otherwise noted.).
Symbol
Parameter
Min. Typ. Max. Unit
VDD Operating voltage 2.4 - 5 V
ISTB
Standby current
-2
- uA
IDD
Operating current
- 0.3 1 mA
IAUD AUD output current 3 5 - mA
VIH
High input voltage
3.5 -
5
V
VIL
Low input voltage
0- 1 V
FOSC
Oscillator frequency
- 80 - KHz
Temp. Operating temperature 0 25 60 OC
Remark
Oscillator stop, @VDD=4.5V
No load , @VDD=4.5V
External Rosc 270KΩ
* All specs and applications shown above subject to change without prior notice.
( ,)
Ver 1.01 Page 2 of 3


Part Number TL2272-96
Description Decoder
Maker Treasure Link Technology
Total Page 3 Pages
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