參數(shù)資料
型號(hào): TMS37122
廠商: Texas Instruments, Inc.
英文描述: TIRIS Automotive Devices Analog Front End IC TMS37122
中文描述: 提里斯汽車設(shè)備的模擬前端集成電路TMS37122
文件頁(yè)數(shù): 60/73頁(yè)
文件大?。?/td> 1189K
代理商: TMS37122
60
Analog Front End IC TMS37122 - Reference Guide
August ’01
4.2
Recommended System Operating Conditions
4.2.1
Base Station - Test Station Conditions
4.2.2
Identification Device Conditions
Parameter
Sign
Note
Min
Nom
Max
Unit
Transmitter frequency
fTX
120
134.2
140
kHz
Wake-up Time
tWAKE
5
10
ms
Wake-up Time
tWAKE
Backup Mode
10
50
ms
Data Rate
fRX
100% AM, PPM
500
2000
4000
bits/s
Wake Data Rate
fWAKE
Pulse Position
Modulation,
16 low bits
1000
2500
4000
bits/s
Transmitter Operating
Quality Factor
QopTX
30
33
Note:
The following parameters have to be established in the application.
Parameter
Sign
Note
Min
Nom
Max
Unit
Resonance Frequency
fRES
ANT1, ANT2, ANT3
VCL = 5 V
120
134.2
140
kHz
Identification Device Quality
Factor
QopTRP
ANT 1 used for backup
function
Notes 1 & 2
10
30
Identification Device Quality
Factor
QopTRP
ANT 1, 2, 3,
no backup function
Notes 1 & 2
20
Low Bit Transmit Frequency
fL
ANT1, -40...85 oC
Qop=10…30
Notes 1 & 2
130.2
134.7
139.5
kHz
Low Bit Transmit Frequency
fL
ANT1, 25 oC
Qop=10…30
Notes 1 & 2
132.0
134.7
136.5
kHz
High Bit Transmit Frequency
fH
ANT1, -40...85 oC
Qop=10…30
Notes 1 & 2
118.0
123.7
128.0
kHz
High Bit Transmit Frequency
fH
ANT1, 25 oC
Qop=10…30
Notes 1 & 2
120.0
123.7
126.5
kHz
Notes:
1. Fres = 134.2 kHz.
2. Min/Max parameters depend on LR + CR temperature coefficient.
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