ATA2525XXX-DDW Atmel, ATA2525XXX-DDW Datasheet

RF Wireless Misc IR-RX preamp 5V. Order freq. version

ATA2525XXX-DDW

Manufacturer Part Number
ATA2525XXX-DDW
Description
RF Wireless Misc IR-RX preamp 5V. Order freq. version
Manufacturer
Atmel
Datasheet

Specifications of ATA2525XXX-DDW

Package / Case
SO-8
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
Applications
1. Description
The IC ATA2525 is a complete IR receiver for data communication that was devel-
oped and optimized for use in carrier-frequency-modulated transmission applications.
The IC combines small size with high sensitivity as well as high suppression of noise
from daylight and lamps. An innovative and patented pad layout offers unique flexibil-
ity for assembly of IR receiver modules. The ATA2525 is available with standard
carrier frequencies (33, 36, 37, 38, 40 kHz) and 3 different noise suppression regula-
tion types (standard, lamp, noise) covering requirements of different high-volume
r e m o t e c o n t r o l s o l u t i o n s ( p l e a s e r e f e r t o s e l e c t i o n g u i d e a v a i l a b l e f o r
ATA2525/ATA2526). The ATA2525 operates in a supply voltage range of 4.5V to
5.5V.
The function of ATA2525 can be described using the block diagram (see
on 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
High Sensitivity Due to Automatic Sensitivity Adaption (AGC) and Automatic Strong
Signal Adaption (ATC)
High Immunity Against Disturbances from Daylight and Lamps
Small Size and Innovative Pad Layout
Available for Carrier Frequencies between 33 kHz to 40 kHz; Adjusted
by Zener Diode Fusing
TTL and CMOS Compatible
Suitable Minimum Burst Length
Home Entertainment Applications
Home Appliances
Remote Control Equipment
2). The input stage meets two main functions. First, it provides a suitable bias
10 Pulses/Burst
0
which is equivalent to the
Figure 1-1
IR Receiver
ASSP
ATA2525
4854G–AUTO–05/10

Related parts for ATA2525XXX-DDW

ATA2525XXX-DDW Summary of contents

Page 1

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

Page 2

Figure 1-1. Block Diagram IN Carrier frequency f 0 Modulated IR signal min 10 pulses ATA2525 2 VS CGA and Input filter AGC/ATC Oscillator and digital control GND OUT Micro- Demodulator controller ATA2525 4854G–AUTO–05/10 ...

Page 3

Absolute Maximum Ratings Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated ...

Page 4

Electrical Characteristics (Continued –25°C to +85° 4.5V to 5.5V unless otherwise specified. amb S No. Parameters Minimum detection 3.3 threshold current; see Figure 5-2 on page 5 Minimum detection threshold current with AC 3.4 current ...

Page 5

Reliability Electrical qualification (1000h at 150°C) in molded SO8 plastic package 5. Typical Electrical Curves at T Figure 5-1. Figure 5-2. 4854G–AUTO–05/10 = 25°C amb V versus IN_DC S 3 2.94 2.79 2 ...

Page 6

Figure 5-3. Figure 5- –3 dB values. Example 1/(1.047 – 0.954 ATA2525 6 Data Transmission Rate 1750 Standard type 1500 1250 1119 Lamp type ...

Page 7

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 Figure 5-6. Test Circuit 1 nF ...

Page 8

Figure 5-7. Application Circuit 220 4.7 µF IN_DC Ee 1 ATA2525 8 RPU = OCL IN ATA2525 I OUT L ...

Page 9

Chip Dimensions Figure 6-1. Note: Dimensions Pad metallurgy Finish Note: 4854G–AUTO–05/10 Chip Size in µm 393,839 OUT 224,495 47,72 VS Zapping 0,0 Pad coordinates are for lower left corner of the pad in µm from the origin 0,0 Length ...

Page 10

Ordering Information Delivery: unsawn wafers (DDW) in box Extended Type Number D (1) ATA2525S1xx C-DDW 1493 (1) ATA2525S3xx C-DDW 980 (1) ATA2525S5xx C-DDW 730 Notes means the used carrier frequency value (33, 36, 37 ...

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. 4854G-AUTO-05/10 4854F-AUTO-09/09 4854E-AUTO-10/06 4854D-AUTO-04/06 4854G–AUTO–05/10 History Page 3: Thermal Resistance table deleted Page ...

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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