T2525N336-DDW Atmel, T2525N336-DDW Datasheet

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T2525N336-DDW

Manufacturer Part Number
T2525N336-DDW
Description
Manufacturer
Atmel
Datasheet

Specifications of T2525N336-DDW

Operating Supply Voltage (typ)
5V
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (max)
5.5V
Operating Temperature Classification
Commercial
Lead Free Status / RoHS Status
Not Compliant
Features
Applications
1. Description
The IC T2525 is a complete IR receiver for data communication that was developed
and optimized for use in carrier-frequency-modulated transmission applications. The
IC offers highest sensitivity as well as highest suppression of noise from daylight and
lamps. The T2525 is available with broadest range of carrier frequencies (30, 33, 36,
37, 38, 40, 44, 56 kHz) and 3 different noise suppression regulation types (standard,
lamp, short burst) covering requirements of high-end remote control solutions (please
refer to selection guide available for T2525/T2526). The T2525 operates in a supply
voltage range of 4.5V to 5.5V.
The function of T2525 can be described using the block diagram (see
page
voltage for the PIN diode. Secondly, the pulsed photo-current signals are transformed
into a voltage by a special circuit which is optimized for low-noise applications. After
amplification by a Controlled Gain Amplifier (CGA), the signals have to pass a tuned
integrated narrow bandpass filter with a center frequency f
chosen carrier frequency of the input signal. The demodulator is used to convert the
input burst signal into a digital envelope output pulse and to evaluate the signal infor-
mation quality, i.e., unwanted pulses will be suppressed at the output pin. All this is
done by means of an integrated dynamic feedback circuit which varies the gain as a
function of the present environmental condition (ambient light, modulated lamps etc.).
Other special features are used to adapt to the current application to secure best
transmission quality.
No External Components Except PIN Diode
Supply-voltage Range: 4.5V to 5.5V
Highest Sensitivity Due to Automatic Sensitivity Adaption (AGC) and Automatic Strong
Signal Adaption (ATC)
Highest Immunity Against Disturbances from Daylight and Lamps
Available for Carrier Frequencies between 30 kHz to 56 kHz; Adjusted
by Zener Diode Fusing
TTL and CMOS Compatible
Suitable Minimum Burst Length ≥ 10 Pulses/Burst
Home Entertainment Applications (Audio/Video)
Home Appliances
Remote Control Equipment
2). The input stage meets two main functions. First, it provides a suitable bias
0
which is equivalent to the
Figure 1-1 on
IR Receiver
ASSP
T2525
4657H–AUTO–05/10

Related parts for T2525N336-DDW

T2525N336-DDW Summary of contents

Page 1

Features • No External Components Except PIN Diode • Supply-voltage Range: 4.5V to 5.5V • Highest Sensitivity Due to Automatic Sensitivity Adaption (AGC) and Automatic Strong Signal Adaption (ATC) • Highest Immunity Against Disturbances from Daylight and Lamps • Available ...

Page 2

Figure 1-1. Block Diagram IN Carrier frequency f 0 Modulated IR signal min pulses T2525 2 VS CGA and Input filter AGC/ATC Oscillator and digital control GND OUT Micro- Demodulator controller T2525 4657H–AUTO–05/10 ...

Page 3

Pin Description Table 2-1. Pin Description Symbol Function VS Supply voltage OUT Data output IN Input PIN diode GND Ground 3. Absolute Maximum Ratings Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. ...

Page 4

Electrical Characteristics T = 25° unless otherwise specified. amb S No. Parameters 1 Supply 1.1 Supply-voltage range 1.2 Supply current 2 Output (1) 2.1 Internal pull-up resistor 2.2 Output voltage low 2.3 Output voltage high 2.4 ...

Page 5

Electrical Characteristics (Continued 25° unless otherwise specified. amb S No. Parameters Maximum detection 3.5 threshold current with V IN > Controlled Amplifier and Filter Maximum value of 4.1 variable gain (CGA) Minimum ...

Page 6

Typical Electrical Curves at T Figure 5-1. Figure 5-2. Figure 5-3. T2525 6 = 25°C amb I versus Eemin IN_DC S 100 10 1 0.52 0 0.1 1.0 10.0 I IN_DC V versus I ...

Page 7

Figure 5- Figure 5-5. Illustration of Used Terms 1066 µs 533 µ OUT DON Envelope 1 OUT Data word 17 ms Example kHz, burst with 16 pulses, 16 periods 4657H–AUTO–05/10 ...

Page 8

Figure 5-6. Test Circuit PULSE f I IN_AC100 Figure 5-7. Application Circuit 220 4.7 µF IN_DC Ee 1 T2525 8 I ...

Page 9

Chip Dimensions Figure 6-1. Note: Dimensions Pad metallurgy Finish Note: 4657H–AUTO–05/10 Chip Size in µm GND 351,904 VS 63,660 T2525 63,70 OUT 0,0 Pad coordinates are for lower left corner of the pad in µm from the origin 0,0 ...

Page 10

Ordering Information Delivering: unsawn wafers (DDW) in box. (2) Extended Type Number PL (1) T2525S0xx C-DDW 2 (1) T2525S1xx C-DDW 1 (1) T2525S2xx C-DDW 2 (1) T2525S3xx C-DDW 1 (1) T2525S6xx C-DDW 2 (1) T2525S7xx C-DDW 1 Notes: 1. ...

Page 11

Revision History Please note that the following page numbers referred to in this section refer to the specific revision mentioned, not to this document. Revision No. 4657H-AUTO-05/10 4657G-AUTO-09/09 4657F-AUTO-10/06 4657E-AUTO-04/06 4657H–AUTO–05/10 History • Features on page 1 changed • ...

Page 12

... Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN ATMEL’S TERMS AND CONDI- TIONS OF SALE LOCATED ON ATMEL’S WEB SITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ...

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