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参数资料
| 型号： | ATA2525S333C-DDW |
| 厂商： | ATMEL CORP |
| 元件分类： | 通信及网络 |
| 英文描述： | SPECIALTY TELECOM CIRCUIT, UUC11 |
| 封装： | DIE-11 |
| 文件页数： | 1/12页 |
| 文件大小： | 205K |
| 代理商： | ATA2525S333C-DDW |
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 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
≥ 10 Pulses/Burst
Applications
Home Entertainment Applications
Home Appliances
Remote Control Equipment
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
remote control solution s (please refer t o selection guide available 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 Figure 1-1
on page 2). The input stage meets two main functions. First, it provides a suitable bias
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
0 which is equivalent to the
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.
IR Receiver
ASSP
ATA2525
4854G–AUTO–05/10
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ATA2525S338C-DDW | 制造商:Atmel Corporation 功能描述:IR DEVICES |
| ATA2525XXX-DDW | 功能描述:射频无线杂项 IR-RX preamp 5V. Order freq. version RoHS:否 制造商:Texas Instruments 工作频率:112 kHz to 205 kHz 电源电压-最大:3.6 V 电源电压-最小:3 V 电源电流:8 mA 最大功率耗散: 工作温度范围:- 40 C to + 110 C 封装 / 箱体:VQFN-48 封装:Reel |
| ATA2526 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Low-voltage IR Receiver ASSP |
| ATA2526_09 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Low-voltage IR Receiver ASSP |
| ATA2526P133-DDW | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Low-voltage IR Receiver ASSP |
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