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參數(shù)資料
| 型號： | CRX14 |
| 廠商： | 意法半導體 |
| 英文描述： | Short Range Contactless Coupler Chip(短程遙控的耦合器芯片) |
| 中文描述： | 短距離非接觸耦合器芯片（短程遙控的耦合器芯片） |
| 文件頁數(shù)： | 2/4頁 |
| 文件大?。?/td> | 32K |
| 代理商： | CRX14 |
CRX14
2/4
SUMMARY DESCRIPTION
The CRX14 is a contactless coupler, compliant
with the short range ISO14443B standard control-
led,
using the two wire I2C bus.
The CRX14 generates a 13.56MHz signal on an
external antenna. Transmitted data are modulated
using Amplitude Shift Keying (ASK) modulation.
Received data are demodulated from the tag load
variation signal, generated on the antenna, using
Bit Phase Shift Keying (BPSK) coding of an
847kHz sub-carrier. The Transmitted ASK wave is
10% modulated. The Data transfer rate between
the CRX14 and the tag is 106Kbit/s in both trans-
mission and reception modes.
The CRX14 follows the ISO 14443 part 2 type B
recommendation for the radio-frequency power
and signal interface.
Figure 2. Logic Diagram
The CRX14 targets short range applications which
need disposable or secure and re-usable prod-
ucts. The CRX14 includes an automated anti-col-
lision mechanism that allows it to detect and select
tags present at the same time within range of the
CRX14. The anti-collision is based on the STMi-
croelectronics probabilistic scanning methodolo-
gy. The CRX14 provides an anti-clone function
from FRANCE TELECOM which allows tag au-
thentication. With the use of the single chip cou-
pler CRX14, it is easy to design a reader with the
authentication capability and to build a system with
a high level of security at low cost.
Table 1. Signal Names
Figure 3. SO Connections
The CRX14 provides a complete analog interface,
compliant with the ISO/IEC 14443 recommenda-
tions for a radio-frequency power and signal inter-
face. It allows the ISO 14443-2 type B proximity
tag to be powered and to have control data trans-
mitted, via a simple antenna. The CRX14 is fabri-
cated with STMicroelectronics High Endurance
Single Polysilicon CMOS technology.
AI06828
RF OUT
CRX14
RF IN
Transmitter
Receiver
RAM
Buffer
I2C
Bus
Contr-
oller
OSC_SEL
OSC1
OSC2
PLL_RC
RESET
SCL
SDA
E0
E1
E2
GND
GND_RF
VCC
Vref
Antenna
RF OUT
Antenna Output Driver
RF IN
Antenna Input Filter
VCC / GND
Power Supply & Ground
GND_RF
Ground for RF circuitry
OSC1 /
OSC2
Oscillator input
PLL_RC
PLL RC filter Input
Vref
Transmitter Reference Voltage
OSC_SEL
13.56MHz/32.768kHz osc select
RESET
Reset
SCL
I2C Clock
SDA
I2C Bi-Directional Data
E0
I2C Chip Enable
E1
I2C Chip Enable
E2
I2C Chip Enable
1
2
3
4
5
6
7
8
AI06827
16
15
14
13
12
11
10
OSC_SEL
SCL
E1
E2
OSC2
OSC1
RF IN
Vref
GND_RF
E0
CRX14
9
SDA
GND
RESET
PL_RC
RF OUT
VCC
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| CRX14_05 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low Cost ISO14443 type-B Contactless Coupler Chip with Anti-Collision, CRC Management and Anti-Clone Function |
| CRX14_10 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:ISO14443 type-B contactless coupler chip with anti-collision, CRC management and anti-clone function |
| CRX14-MQ | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low Cost ISO14443 type-B Contactless Coupler Chip with Anti-Collision, CRC Management and Anti-Clone Function |
| CRX14-MQ/1GE | 制造商:STMicroelectronics 功能描述:CONTLESS COUPLER CHIP 16PIN SO - Rail/Tube 制造商:STMicroelectronics 功能描述:Non-contact card interface |
| CRX14-MQ/1XEB | 制造商:STMicroelectronics 功能描述:CONTLESS COUPLER CHIP 16PIN SO - Rail/Tube |
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