| 品牌 | 林強達 | 型號 | 2crm-4338m |
| 種類 | 光學接收器件 | 波段范圍 | 遠紅外 |
| 運轉方式 | 可調諧式 | 激勵方式 | 電激勵式 |
| 工作物質 | 自由電子 | 光路徑 | 透過型外光路 |
| 輸出形式 | 光敏器件型 | 速度 | 高速 |
| 通道 | 雙通道 | 輸出波長 | 1000000（nm） |
| 線寬 | 1000（mm） |
infrared receiver module
● description
thezcrm-4338m is miniaturized infrared receiversfor remote
control and other applications requiringimproved ambient light
rejection.
the separate pin diode and preamplifier ic are assembled on
a single leadframe.
the epoxy package contains a special ir filter.
this module has excellent performance even in disturbed
ambient light applications and provides protection against
uncontrolled output pulses.
●features
• photo detector and preamplifier in one package .
• internal filter for pcm frequency.
• inner shield,good anti-interference ability.
• high immunity against ambient light.
• improved shielding against electric field disturbance
• 3.0v—5.0v supply voltage; low power consumption.
• ttl and cmos compatibility.
• suitable transmission code:nec code,rc5 code.
●applications:
1.optical switch
2. light detecting protion of remote contol
• av instruments such as audio,tv,vcr,cd,md,dvd,etc.
• home appliances such as air-conditioner,fan,etc.
• catv set top boxes
• multi-media equipment
2absolute maximum ratings(ta=25℃)
parameter | symbol | ratings | unit | notice |
supply voltage | vs | 2.4-6.5 | v | — |
operating temperature | topr | -20~+80 | ℃ | — |
storage temperature | tstg | -40~+125 | ℃ | — |
soldering temperature | tsd | 260 | ℃ | 4mm from mold body less than 5 sec |
rev: 1.0page: 1of 5 |
2 electrical and optical characteristics(ta=25℃)
parameter | symbol | ratings | unit | condition | ||
min. | typ. | max. | ||||
supply voltage | vs | 2.7 | - | 5.5 | v |
|
supply current | icc | 0.25 | — | 0.5 | ma | no signal input,vcc=3v |
0.30 |
| 0.58 | ma | no signal input,vcc=5v | ||
reception distance | l0 | 24 | — | — | m | atthe ray axis*1 |
l45 | 12 | — | — | |||
b.p.f center frequency | fo | — | 38 | — | khz |
|
peak wavelength | lp | — | 940 | — | nm |
|
half angle | q | — | 45 | — | deg | atthe ray axis*1 |
high level pulse width | th | 400 | — | 800 | ms | atthe ray axis*2 |
low level pulse width | tl | 400 | — | 800 | ms | |
high level output voltage | vh | 4.5 | — | — | v |
|
low level output voltage | vl | — | — | 0.5 | v |
|
*1:the ray receiving surface at a vertex and relation to the ray axis in the range of θ=0° and θ=45°
*2:a range from 30cm to the arrival distance. average value of 50 pulses
●block diagram
rev: 1.0page: 2of 5 |
2test method
2application circuit
rev: 1.0page: 3 of 5 |
●package dimensions:
|
notes:
1.all dimensions are in millimeters.
2.tolerance is ±0.30mm (0.012’’) unless otherwise specified.
3.specifications are subject to change without notice.
rev: 1.0page: 4 of 5 |
2 electrical and optical curves(ta=25℃)
|