描述
配備 PML125K 的讀取器同時具有磁場產生器與解碼器的功能,可為標籤供電並接收其傳回的資料。換句話說,每當磁場通過標籤的天線線圈時,線圈兩端便會產生交流電。該電壓會為標籤供電,使其將儲存的資訊回傳給讀取器。這稱為 backscattering。訊號傳輸速率約為 1K bit 到 4K bit 每秒。這是一種 modulated Signal。讀取器透過其線圈天線可以接收這些訊號。經過 Demodulation 處理後,這些訊號會被轉換成數位資料串以供後續解碼。使用 PML125K 可支援多種晶片品牌,例如 EM、Microchip、Philips、Temic 等等。它將是您以低成本與較少努力來實現複雜 RF 系統的簡單解決方案。
規格
| 產品名稱 | RFID LF Module |
| 產品編號 | PML125K |
| 頻段 | 125 KHz |
| Baud-Rate | 9600, N, 8, 1 (customizable) |
| 電源 | DC 5V |
| 動態模式 | 93 mA |
| 工作 溫度 | -30℃ ~ 70℃ |
| 儲存 溫度 | -30℃ ~ 70℃ |
| 尺寸 | 32 x 23.6 x 2.7mm (L x W x H) |
| 支援的 LF |
| TK4100 |
| HCS410 |
| EM4102 |
| EM4200 |
| EM4069 |
| EM4305 |
| EM4550 |
| EM4450 |
| Temic5530 |
| Temic5577 |
| Temic5557 |
| Temic5777 |
| HiTagⅠ |
| HiTagⅡ |
| HiTag S64 |
| HiTag S256 |
| HiTag S2048 |
| PIN | 描述 | Pin name | 功能 | Min | Typ | Max | Unit |
| 1 | 資料輸出電源 | DATA | Digital output from demodulation |
3 | 5 | 5.5 | V |
| 2 | 電壓(1) | VCC | Suppl voctage for digital circuit |
3 | 5 | 5.5 | V |
| 3 | 輸入頻率 | OSC-IN | Reference frequency to internal circuit |
4M | Hz | ||
| 4 | 接地(1) | GND(1) | Digital ground | V | |||
| 5 | 調變輸入 | WRITE | VL<0.3V, VH>VCC | 5 | V | ||
| 6 | 發射輸出(1) | LT1 | VDD-0.6V | V | |||
| 7 | 供電電壓(2) | VDD | Supply voltage for analog circuit |
3 | 9 | 12 | V |
| 8 | 輸入(1) | RT1 | 120 | 560 | 1.5K | ||
| 9 | 發射輸出(2) | LT2 | VDD-0.6V | V | |||
| 10 | 輸入(2) | RT2 | Same as RT1 | ||||
| 11 | 接地(2) | GND(2) | Analog ground | V | |||
| 12 | RF 輸入 | RF-IN | Resonent input | 20Vp-p | 450Vp-p | V |
用途
WFE-125K-xx series provide either single direction or bidirection communication through contactless radio frequency (RF) wave. Amplitude Shift Keying (ASK) mode is employed as a modulation method to carrier signal in a radio frequency of 125K Hz. It is used to accomplish actual modulation of signal transmission from a tag to a reader in a speed fallen in 1K bit to 4K bit per second.
產品詢問
| 圖片 | 商品名稱 |
|---|---|
|
RFID LF Module PML125K |